JPH069242Y2 - Formwork for slabs with reinforcing ribs - Google Patents
Formwork for slabs with reinforcing ribsInfo
- Publication number
- JPH069242Y2 JPH069242Y2 JP1987197728U JP19772887U JPH069242Y2 JP H069242 Y2 JPH069242 Y2 JP H069242Y2 JP 1987197728 U JP1987197728 U JP 1987197728U JP 19772887 U JP19772887 U JP 19772887U JP H069242 Y2 JPH069242 Y2 JP H069242Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- side wall
- piece
- formwork
- top surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
【考案の詳細な説明】 「産業上の利用分野」 本考案は、コンクリート又はモルタル等が打設されて構
築される建築物の床、天井等に補強リブ付スラブを形成
するための型枠に関し、更に詳しくは安価で且つ充分な
強度を備えた、縦方向（高さ方向、以下同じ）の長大サ
イズの型枠（背の高い型枠）として好適な補強リブ付ス
ラブ用型枠に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a formwork for forming a slab with a reinforcing rib on a floor, a ceiling or the like of a building constructed by placing concrete or mortar. More specifically, the present invention relates to a mold for a slab with a reinforcing rib, which is inexpensive and has sufficient strength, and which is suitable as a long-sized mold (long mold) in the longitudinal direction (height direction, hereinafter the same).
「従来技術と問題点」 コンクリート建築物等においては、床、天井等の厚みを
少なくすると共に、その強度や剛性等を向上させるため
補強リブ付スラブが形成される。この補強リブ付スラブ
は、梁部材の上に合板などからなる平板状の型枠（平板
型枠）が水平に取り付けられ、この平板型枠である合板
の上に補強リブを形成する間隙を形成して複数の型枠を
固定し、こうして形成された型枠の上からコンクリート
あるいはモルタル等が打設した後、平板型枠および型枠
を撤去することにより形成される。このようにして補強
リブ付スラブを形成する際に使用される型枠は、従来、
鋼板等の金属、プラスチックあるいはゴム等の素材から
形成されていた。“Conventional Technology and Problems” In concrete buildings and the like, a slab with a reinforcing rib is formed in order to reduce the thickness of a floor, a ceiling and the like and improve the strength and rigidity thereof. In this slab with reinforcing ribs, a flat plate form frame (flat plate form frame) made of plywood or the like is horizontally mounted on a beam member, and a gap for forming a reinforcing rib is formed on the flat plate form plate. Then, a plurality of molds are fixed, concrete, mortar, or the like is cast on the molds thus formed, and then the flat plate mold and the molds are removed. In this way, the formwork used when forming the slab with the reinforcing rib is conventionally
It was formed from a material such as metal such as a steel plate, plastic, or rubber.
しかしながら、このような型枠を金属で成形した場合に
は重量が大きいため取り扱いが難しく、且つコスト高と
なり、また、ゴムで成形した場合には、高価なため他の
建築物の構築に再使用する必要がある。こうした再使用
の際には、硬化したコンクリート、モルタル等から型枠
を撤去する際に、この型枠が破損しないように型枠の表
面に離型剤を塗布する必要があり、作業工程が煩雑にな
ると共にコスト的にも不利である。このため、近年プラ
スチックが使用され、特にポリスチレン発泡粒子型内成
形体が利用されている。However, when such a formwork is molded with metal, it is heavy and difficult to handle, and it is expensive, and when molded with rubber, it is expensive and can be reused for construction of other buildings. There is a need to. In such reuse, when removing the mold from the hardened concrete, mortar, etc., it is necessary to apply a mold release agent to the surface of the mold so as not to damage the mold, and the work process is complicated. It is also disadvantageous in terms of cost. For this reason, in recent years, plastics have been used, and in particular, polystyrene foamed particle in-mold molded products have been used.
例えば、実開昭６１−７３７３８号には、１倍を超え２
０倍以内の発泡倍率で発泡したポリスチレン又はポリプ
ロピレンの成形体からなると共に、少なくとも凸部が中
空状に構成されたことを特徴とする補強リブ付スラブ用
型枠が提案されている。For example, in Japanese Utility Model No. 61-73738, the number of times exceeds 1 and 2
There has been proposed a slab formwork with a reinforcing rib, which is composed of a molded product of polystyrene or polypropylene expanded at an expansion ratio of 0 times or less, and has at least a convex portion formed in a hollow shape.
このような型内成形体からなる型枠は金型内に原料樹脂
を充填して発泡させることにより製造される。ところ
が、こうした型内成形体を製造する際には、金型が大き
くなるにつれて金型の製造コストが増大するので、大型
の金型を製造すると型枠のコストが高くなり、型枠の製
造にはコストの制約を受けざるを得ない。また、製造可
能な型枠の大きさにも自ずから制限がある。A mold frame made of such an in-mold molded body is manufactured by filling a mold with a raw material resin and foaming the resin. However, when manufacturing such an in-mold molded body, the manufacturing cost of the mold increases as the size of the mold increases. Therefore, when manufacturing a large mold, the cost of the mold becomes high, and it becomes difficult to manufacture the mold. Are subject to cost constraints. In addition, the size of the mold that can be manufactured is naturally limited.
このため、従来、サイズの大きい型枠は合板を使用して
矩形に加工したものが使用されているが、このような型
枠を用いたのでは施工性が低く、従って高価となり、ま
た仕上がり（直角部が現出させ難い等）が悪いという問
題がある。また、鉄あるいはアルミニウム等の金属製の
ものも使用されているが、前記のように、これらの金属
製の型枠は重いために作業性が悪く、結果としてコスト
高となる問題点を有している。For this reason, conventionally, a large-sized formwork has been used that has been processed into a rectangular shape using plywood, but using such a formwork results in low workability and therefore high cost, and a finished ( There is a problem that the right-angled part is difficult to appear). In addition, although those made of metal such as iron or aluminum are also used, as described above, since the molds made of these metals are heavy, workability is poor, and as a result, there is a problem that the cost becomes high. ing.
「問題点を解決するための手段」 本考案はかかる実情に鑑み、上記問題点を解消した補強
リブ付スラブ用型枠を提供するものである。"Means for Solving Problems" In view of the above situation, the present invention provides a slab formwork with a reinforcing rib that solves the above problems.
即ち、本考案は、天面部が矩形で縦断面が台形の発泡合
成樹脂からなる型枠を平板型枠上に補強リブの厚さに対
応する間隔を置いて複数個敷設し、この上からコンクリ
ート等を打設した後、該型枠および平板型枠を撤去して
補強リブを有するスラブを形成するためのスラブ形成用
の型枠であって、 該型枠は、断面台形状の型枠片を少なくとも２個上下に
積層されてなり、 該型枠の最上部には、矩形の天面部と、該天面部の縁に
連続して拡大テーパー状に下方に押延された４面の側壁
部とから形成された底部が開口された断面中空台形状の
上部型枠片が配置され、 該上部型枠片の下部には、上部型枠片の側壁部下端から
連続した側壁を形成するように、上部型枠片の側壁下端
部に嵌挿される嵌合縁を上端部に有する４面の側壁部か
ら形成されると共に上下面が開口した断面中空台形状の
下部型枠片が配置されており、 該上部型枠片の内側に形成されている中空部には、上部
型枠片の天面部の裏面と一体化され、対面する側壁面の
裏面と端部で接合する板状の橋渡し補強部材が天面部裏
面から下方に押延されて形成されており、 そして、該下部型枠片の内側に形成されている中空部に
は、対面する側壁面の裏面と端部で接合する板状の橋渡
し補強部が、側壁面上端部を結ぶ仮想線を上端として下
方に押延されて形成されていることを特徴とする補強リ
ブ付スラブ用型枠にある。That is, according to the present invention, a plurality of molds made of synthetic resin foam having a rectangular top surface and a trapezoidal vertical cross section are laid on a flat plate mold at intervals corresponding to the thickness of the reinforcing ribs, and concrete is then laid. Is a mold for forming a slab for removing the mold and the flat plate mold to form a slab having a reinforcing rib, and the mold has a trapezoidal cross section. At least two of them are vertically stacked, and on the uppermost part of the mold, a rectangular top surface portion and four side wall portions downwardly extended in an enlarged taper shape continuously from the edges of the top surface portion are formed. An upper mold piece having a hollow trapezoidal cross-section with an open bottom formed from and is arranged, and a lower side wall of the upper mold piece forms a continuous side wall from the lower end of the side wall part of the upper mold piece. Formed from four side wall parts having a fitting edge at the upper end that is fitted into the lower end of the side wall of the upper formwork piece. In addition, a lower formwork piece having a hollow trapezoidal cross-section with an open upper and lower surface is arranged. And a plate-like bridging reinforcing member that is joined at the end with the back surface of the facing side wall surface is formed by being pushed downward from the back surface of the top surface portion, and is formed inside the lower mold piece. In the hollow portion, a plate-like bridging reinforcement portion joined at the end with the back surface of the facing side wall surface is formed by being pushed downward with an imaginary line connecting the upper end portions of the side wall surfaces as the upper end. It is in the slab formwork with reinforcing ribs.
さらに本考案の型枠には、上記の上部型枠片に形成され
た板状の橋渡し補強部の下端部が、下部型枠片に形成さ
れた板状の橋渡し補強部の上端部と接触するように設け
られていることが好ましい。Further, in the mold of the present invention, the lower end of the plate-like bridging reinforcement formed on the upper mold piece contacts the upper end of the plate-like bridging reinforcement formed on the lower mold piece. Is preferably provided.
「実施例」 本考案の実施態様を示す図面に基づいて説明する。[Example] An example of the present invention will be described with reference to the drawings.
第１図は本考案の型枠を示す断面図、第２図および第３
図は本考案の型枠の他の態様を示す断面図、第４図は、
本考案の型枠の使用状態を示す概要図である。FIG. 1 is a sectional view showing a mold of the present invention, FIG. 2 and FIG.
FIG. 4 is a sectional view showing another embodiment of the mold of the present invention, and FIG.
It is a schematic diagram showing a use state of a formwork of the present invention.
第１図に示すように本考案の型枠は、上部型枠片１と、
この上部型枠１の下部に配置される少なくとも１個の下
部型枠片１１とから構成されている。As shown in FIG. 1, the mold of the present invention comprises an upper mold piece 1 and
The upper mold 1 is composed of at least one lower mold piece 11 arranged below the upper mold 1.
本考案の型枠の最上部に配置されている上部型枠片１
は、矩形の天面部２と、この天面部２の縁に連続して拡
大テーパー状に下方に押延された４面の側壁部３とから
形成されている。即ち、側壁部３は、天面部２から遠ざ
かるに従ってその幅が広くなるように形成されている。Upper formwork piece 1 located at the top of the formwork of the present invention
Is formed of a rectangular top surface portion 2 and four side wall portions 3 continuous with the edge of the top surface portion 2 and extended downward in an enlarged taper shape. That is, the side wall portion 3 is formed so that its width becomes wider as it goes away from the top surface portion 2.
この天面部２と側壁部３とを有する上部型枠片は、内部
が台形状の断面形状を有しており、その底部は下部型枠
片１１が嵌挿できるように開口している。The upper mold piece having the top surface portion 2 and the side wall portion 3 has a trapezoidal cross-section inside, and the bottom portion thereof is open so that the lower mold piece 11 can be fitted therein.
そして、この上部型枠片の内側に形成されている中空部
には、天面部２の裏面と一体化され、対面する側壁面の
裏面と端部で接合する板状の橋渡し補強部材５が形成さ
れている。即ち、橋渡し補強部５は、相向かい合う側壁
３の裏面に、長手方向のそれぞれの端部が接合してお
り、この相向かい合う側壁はこの橋渡し補強部５によっ
て外方向への変形が抑制される。さらにこの橋渡し補強
部５の幅後方の上端は、天面部２裏面に接合しており、
その幅後方の下端は、天面部２下方に押延されている。
このように橋渡し補強部５の幅方向の上端部が天面部２
の裏面に接合することにより、上面部２上にコンクリー
ト等が打設されたときにこの上面部２が湾曲するなどの
変形が発生しにくくなる。Then, a plate-like bridging reinforcing member 5 that is integrated with the back surface of the top surface portion 2 and is joined at the end portion to the back surface of the facing side wall surface is formed in the hollow portion formed inside the upper mold piece. Has been done. That is, in the bridging reinforcement portion 5, the respective longitudinal ends are joined to the back surfaces of the side walls 3 facing each other, and the side walls facing each other are prevented from being deformed outward by the bridging reinforcement portion 5. Further, the widthwise upper end of the bridging reinforcement portion 5 is joined to the rear surface of the top surface portion 2,
The lower end at the rear of the width is pushed below the top surface portion 2.
In this way, the upper end portion in the width direction of the bridging reinforcement portion 5 is the top surface portion 2.
By bonding to the back surface of the upper surface 2, deformation such as bending of the upper surface 2 is unlikely to occur when concrete or the like is cast on the upper surface 2.
本例では、この板状の橋渡し補強部５は、第１図に示す
ように、適宜間隔をおいてクロスするように２方向に設
けられている。即ち対面する２組（４面）の壁面３は、
全てが橋渡し補強部５で接合されており、さらに直交す
る橋渡し補強部５は、この直交部で相互に接合されて碁
盤目状に形成されている。In this example, the plate-like bridging reinforcing portion 5 is provided in two directions so as to cross at appropriate intervals, as shown in FIG. That is, the two sets (4 surfaces) of wall surfaces 3 facing each other are
All of them are joined by the bridging reinforcement portions 5, and the bridging reinforcement portions 5 which are orthogonal to each other are joined to each other at the orthogonal portions to form a grid pattern.
一方、下部型枠片１１には、第１図に示すように、上記
上部型枠片１と同じく、拡大テーパー状の側壁部１３が
設けられている。さらに板状の橋渡し補強部１６がクロ
スするように対面する側壁１３間を２方向に設けられて
いる。そして、側壁１３の上端部には、上記上部型枠片
１にこの下部型枠片１１の上端部が挿嵌されるように、
幾分凹状に形成された嵌合縁１５が設けられている。即
ち、上述の上部型枠片の下部には、上部型枠片の側壁部
下端から下部型枠片がはめ込まれて連続した側壁を形成
するように下部型枠片の側壁の上部に嵌合縁が形成され
ている。こうした嵌合縁が上部型枠片１の底部から上部
型枠片１内に嵌挿されて支持されることにより、上部型
枠片１の側壁部３と、下部型枠片１１の側壁部１３とが
連続して本考案の型枠の側壁が形成される。On the other hand, as shown in FIG. 1, the lower mold piece 11 is provided with an enlarged tapered side wall portion 13 like the upper mold piece 1. Further, the plate-like bridging reinforcement portions 16 are provided in two directions between the facing side walls 13 so as to cross each other. Then, on the upper end of the side wall 13, the upper end of the lower mold piece 11 is inserted into the upper mold piece 1,
There is a mating edge 15 that is somewhat concave. That is, at the lower part of the above-mentioned upper mold piece, a fitting edge is fitted on the upper side wall of the lower mold piece so that the lower mold piece is fitted from the lower end of the side wall portion of the upper mold piece to form a continuous side wall. Are formed. The fitting edge is inserted and supported from the bottom of the upper mold piece 1 into the upper mold piece 1, so that the side wall portion 3 of the upper mold piece 1 and the side wall portion 13 of the lower mold piece 11 are supported. And form a continuous side wall of the mold of the present invention.
この下部型枠片１１は、側壁部１３によって形成される
内部が中空の台形状の断面形状を有している。この下部
型枠片１１の上部には天面部がなく開口されていると共
に、下端部も開口されている。The lower mold piece 11 has a trapezoidal cross-sectional shape in which the inside formed by the side wall portion 13 is hollow. The upper portion of the lower mold piece 11 is open without a top surface portion, and the lower end portion is also opened.
この下部型枠片１１の内部に形成されている中空部に
は、相対面する側壁部１３の裏面の間に板状の橋渡し補
強部１６が配置されている。この橋渡し補強部１６の長
さ方向の端部は、側壁面１３の裏面と接合している。ま
た、この板状の橋渡し補強部１６は、側壁面１３の上端
部を結ぶ仮想線（図示なし）を上端として下方に押延す
るように形成されている。この橋渡し補強部１６は、第
１図に示すように、適宜間隔をおいてクロスするように
２方向に設けられている。即ち対面する２組（４面）の
壁面１３は、全てが橋渡し補強部１５で接合されてお
り、さらに直交する橋渡し補強部１５は、この直交部で
相互に接合されて碁盤目状に形成されている。In the hollow portion formed inside the lower mold piece 11, a plate-like bridging reinforcing portion 16 is arranged between the back surfaces of the side wall portions 13 facing each other. The end portion in the length direction of the bridging reinforcement portion 16 is joined to the back surface of the side wall surface 13. The plate-like bridging reinforcement portion 16 is formed so as to extend downward with an imaginary line (not shown) connecting the upper ends of the side wall surfaces 13 as the upper end. As shown in FIG. 1, the bridging reinforcing portions 16 are provided in two directions so as to cross at appropriate intervals. That is, the two sets (4 surfaces) of wall surfaces 13 facing each other are all joined by the bridging reinforcement portions 15, and the bridging reinforcement portions 15 which are orthogonal to each other are also joined to each other at the orthogonal portions to form a grid pattern. ing.
第１図には上部型枠片１と、この下に１個の下部型枠片
１１が挿嵌して配置された態様が示されているが、この
下部型枠片１１は２段以上積層してもよい。FIG. 1 shows an aspect in which an upper mold piece 1 and one lower mold piece 11 are inserted and arranged under the upper mold piece 1. The lower mold piece 11 is laminated in two or more stages. You may.
第２図は本考案型枠の更に他の実施態様を示す断面図で
ある。FIG. 2 is a sectional view showing still another embodiment of the mold of the present invention.
第２図において、上部型枠片１は、第１図に示すのと同
様に、矩形の天面部２と、この天面部２の縁から連続し
て下方向に押延された拡大テーパー状の側壁部３とを有
する。この天面部２および側壁部３とによって、本考案
の型枠を形成する上部型枠片１は、断面中空台形状の形
態を有している。この側壁部３の裏面には、第１図に示
すのと同様に、板状の橋渡し補強部５が適宜間隔を置い
てクロスするように側壁裏面の間を２方向に設けられて
いる。ただし、第２図に示した上部型枠片１に形成され
ている橋渡し補強部５は、下部型枠片１１が嵌挿された
場合の下部型枠片１１の側壁部１３の上端部を結ぶ仮想
線が到達する位置まで押延されている。In FIG. 2, as in the case of FIG. 1, an upper mold piece 1 has a rectangular top surface portion 2 and an enlarged taper shape continuously downwardly extended from the edge of the top surface portion 2. And a side wall portion 3. The upper mold piece 1 forming the mold of the present invention by the top surface portion 2 and the side wall portion 3 has a hollow trapezoidal cross section. On the rear surface of the side wall portion 3, plate-like bridging reinforcing portions 5 are provided in two directions between the rear surfaces of the side wall portions so as to cross at appropriate intervals, as in the case shown in FIG. However, the bridging reinforcement portion 5 formed on the upper mold piece 1 shown in FIG. 2 connects the upper end portions of the side wall portions 13 of the lower mold piece 11 when the lower mold piece 11 is inserted. It has been pushed to the position where the virtual line reaches.
一方、下部型枠片１１には、第１図に示すのと同じく、
拡大テーパー状の側壁部１３を有している。そして、側
壁部１３の上端部近傍には、上部型枠片１に嵌挿するた
めの嵌合縁１５が設けられている。そして、この下部型
枠片１１の内部には対面する側壁１３を結ぶ橋渡し補強
部１６がクロスするように２方向に設けられている。On the other hand, in the lower mold piece 11, as shown in FIG.
It has an enlarged tapered side wall portion 13. A fitting edge 15 is provided near the upper end of the side wall 13 for fitting the upper mold piece 1. A bridging reinforcing portion 16 connecting the facing side walls 13 is provided in two directions inside the lower mold piece 11 so as to cross.
このような構成を有する上部型枠片１の側壁部３と、下
部型枠片１１の側壁部１３の上部に設けられた嵌合縁１
５によって嵌合支持された下部型枠片１１の側壁部１３
とによって、型枠の側壁面が形成されている。本例で
は、第２図に示すように、上型枠片１の橋渡し補強部５
と下部型枠片１１の橋渡し補強部１６とが、それぞれ等
間隔に設けられており、且つ上下両型枠片嵌合積層時に
は、上部型枠片１の橋渡し補強部５の下端部と、下部型
枠片１１の橋渡し補強部１６の上端部が相接するように
構成されている。このように橋渡し補強部が相接するよ
うにすると、荷重に対する変形量が少なくなり、互いに
相接しない第１図に示すような構造のものに比して強度
がより高くなる。The fitting edge 1 provided on the side wall portion 3 of the upper mold piece 1 and the side wall portion 13 of the lower mold piece 11 having the above structure.
Side wall portion 13 of the lower mold piece 11 fitted and supported by
And form a side wall surface of the mold. In this example, as shown in FIG. 2, the bridging reinforcement portion 5 of the upper mold piece 1
And the bridging reinforcement portions 16 of the lower formwork piece 11 are provided at equal intervals, respectively, and when the upper and lower formwork piece fittings are stacked, the lower end portion of the bridging reinforcement portion 5 of the upper formwork piece 1 and the lower part The upper end portions of the bridging reinforcement portions 16 of the mold piece 11 are configured to be in contact with each other. When the bridging reinforcement portions are in contact with each other in this manner, the amount of deformation with respect to the load is small, and the strength is higher than that of the structure shown in FIG.
第３図は本考案型枠の更に別の実施態様を示す断面図で
あり、第２図に示した型枠において、下部型枠片１１の
側壁部１３の下端部より、略水平方向の外側に縁部１７
が延設されている。この縁部１７は、形成しようとする
スラブの補強リブの厚さの1/2の幅を有するように形成
することが好ましい。このように縁部１７の幅を設定す
ることにより、この縁部どうしを突き合わせて型枠を平
板型枠上に敷設することにより、一定の幅でその幅の誤
差の少ない補強リブを容易に形成することができる。FIG. 3 is a cross-sectional view showing still another embodiment of the formwork of the present invention. In the formwork shown in FIG. 2, the lower side of the side wall portion 13 of the lower formwork piece 11 is substantially horizontal outside. On the edge 17
Has been extended. The edge portion 17 is preferably formed so as to have a width that is half the thickness of the reinforcing rib of the slab to be formed. By setting the width of the edge portion 17 in this way, the edge portions are abutted against each other and the formwork is laid on the flat plate formwork, thereby easily forming the reinforcing rib having a constant width and a small error in the width. can do.
また、第３図に示すように、ここでは、下部型枠片１１
の橋渡し補強材１６が下部型枠片１１の下端部にまで押
延されており、上部型枠片に設けられた橋渡し補強材５
と下部型枠片１１に設けられた橋渡し補強材１６とが相
接合して一体化することにより強度の高い型枠が形成さ
れる。Further, as shown in FIG. 3, here, the lower mold piece 11
The bridging reinforcement member 16 is extended to the lower end of the lower mold piece 11, and the bridging reinforcement member 5 provided on the upper mold piece 5 is
The bridge reinforcing material 16 provided on the lower mold piece 11 is phase-bonded and integrated to form a strong mold.
なお、本考案の型枠を構成する上部型枠片の天面部と側
壁部との交叉部裏面に、断面三角形の角部補強材（図示
無し）を配置することもできる。In addition, a corner reinforcing member (not shown) having a triangular cross section may be arranged on the back surface of the intersection of the top surface portion and the side wall portion of the upper mold piece that constitutes the mold of the present invention.
上記のような本考案の型枠は、発泡合成樹脂から形成さ
れている。この発泡合成樹脂の形成原料の例としては、
ポリスチレン系樹脂、ポリプロピレン系樹脂、硬質ポリ
ウレタン系樹脂等が挙げられる。これらの発泡合成樹
脂、特にポリスチレン型樹脂の場合は１０〜１５倍程度
の低発泡体が用いられる。上記の発泡倍率の範囲では発
泡粒子の密度が大きくなり強度が向上し、釘打ち等も可
能となり、またショット数が増え生産性が向上する。ま
た型枠の表面が平滑となるので脱型（型枠の撤去）が容
易となるとともに、スラブの表面仕上がりが綺麗にな
る。ポリプロピレン系樹脂を用いた場合は、ポリスチレ
ン系樹脂に比べ脱型が容易である利点がある。The mold of the present invention as described above is formed of foamed synthetic resin. As an example of the raw material for forming the foamed synthetic resin,
Examples thereof include polystyrene-based resin, polypropylene-based resin, hard polyurethane-based resin and the like. In the case of these foamed synthetic resins, particularly polystyrene type resins, a low foamed material of about 10 to 15 times is used. When the expansion ratio is in the above range, the density of expanded particles is increased, the strength is improved, nailing and the like are possible, the number of shots is increased, and the productivity is improved. Further, since the surface of the mold is smooth, it is easy to remove the mold (remove the mold) and the surface finish of the slab becomes beautiful. When a polypropylene resin is used, it has an advantage that it can be easily demolded as compared with a polystyrene resin.
本考案の型枠は上記の通り、２個以上の型枠片を上下に
積み重ねて所望のサイズの型枠とされるが、余り積み重
ねる型枠片の数が増えると、積み重ね、及び合板等の上
に敷設する場合の作業性が悪くなるので２〜４個程度が
好ましい。さらに第１図〜第３図に示すように２段重ね
が特に好ましい。上下型枠片の積層は上記のような下部
型枠片の側壁上端部に形成された嵌合縁構造により嵌合
されるが、さらに、積み重ね・敷設の作業性を高めるた
めに、各型枠片の接合面に、図示した嵌合縁構造に加え
て、合欠り、磁石、面ファスナー、両面粘着テープ等の
仮止め用の着脱手段を設けるのは好ましい態様である。As described above, the formwork of the present invention is formed by stacking two or more formwork pieces vertically to form a formwork of a desired size. However, if the number of formwork pieces to be piled up increases, stacking and plywood, etc. Since the workability in the case of laying on the top is deteriorated, about 2 to 4 pieces are preferable. Further, as shown in FIGS. 1 to 3, a two-stage stack is particularly preferable. Stacking of the upper and lower mold pieces is fitted by the fitting edge structure formed on the upper end portion of the side wall of the lower mold piece as described above. In addition, in order to improve workability of stacking and laying, It is a preferred embodiment that, in addition to the fitting edge structure shown in the figure, the joining surface of the piece is provided with a detaching means for temporary fixing such as a joint, a magnet, a surface fastener, and a double-sided adhesive tape.
第４図は、本考案の型枠の使用状態を示す概要図であ
る。同図において、合板等からなる平板型枠６の表面
に、所定の間隔を置いて、上下型枠片を積層してなる本
考案の型枠Ｆが釘等により平板型枠に固定敷設されてい
る。かかる状態で、またはさらに必要に応じて本考案の
型枠Ｆ上にポリエチレン等のプラスチックシートで形成
された脱型カバーを被せた状態で、鉄筋等が配された
後、上方よりコンクリートやモルタル等が打設され、硬
化後に型枠および開いた型枠を撤去する。FIG. 4 is a schematic view showing a use state of the mold of the present invention. In the figure, a mold F of the present invention, which is formed by stacking upper and lower mold pieces at predetermined intervals on the surface of a flat plate mold 6 made of plywood or the like, is fixedly laid on the flat mold by nails or the like. There is. In this state, or if necessary, after covering the mold F of the present invention with a demolding cover made of a plastic sheet such as polyethylene, the reinforcing bars are arranged and then concrete, mortar, etc. are placed from above. After casting, the mold and open mold are removed after curing.
「作用・効果」 叙上の通り、本考案によれば、従来通りの小さな金型
により、従来の型枠よりも２倍〜４倍等の背の高い長大
サイズの型枠を提供することができると共に、特別な係
止具を使用しなくとも長大サイズの型枠を容易に組み立
てることができる、この型枠は従来の型枠を形成する
のに使用されている金型の1/2〜1/4の大きさの金型を使
用して製造することができるので、型枠を安価に製造す
ることができると共に、金型が小さいのでショット数を
かせぐことができる、一般に中空の長大サイズの型枠
は中央部および側壁面の強度が弱いという問題を伴う
が、本考案の型枠は裏面に設けた橋渡し補強部により、
充分な強度を有する、等の多くの利点を有し、その有用
性は頗る大である。[Operation / Effect] As described above, according to the present invention, it is possible to provide a tall and large size mold which is 2 to 4 times taller than the conventional mold by using the conventional small mold. In addition to being able to easily assemble a large size formwork without using special locking tools, this formwork is 1/2 to half of the mold used to form a conventional formwork. Since it can be manufactured using a mold with a size of 1/4, the mold can be manufactured at low cost, and the number of shots can be earned because the mold is small. The formwork of has the problem that the strength of the central part and the side wall surface is weak, but the formwork of the present invention uses the bridging reinforcement part provided on the back side.
It has many advantages such as having sufficient strength, and its usefulness is immense.
第１図乃至第３図は、それぞれ本考案の実施態様を示す
断面図、第４図は本考案型枠の使用状態を示す概要図で
ある。 １……上部型枠片、２……天面部 ３……側壁部、５……橋渡し補強部 ６……平板型枠（合板）、 １１……下部型枠片 １２……天面部、１３……側壁部 １４，１６……橋渡し補強部 １５……嵌合縁 １７……縁部、Ｆ……型枠1 to 3 are sectional views showing an embodiment of the present invention, and FIG. 4 is a schematic view showing a use state of the mold of the present invention. 1 ... Upper formwork piece, 2 ... Top surface part 3 ... Side wall part, 5 ... Bridging reinforcement part 6 ... Flat formwork (plywood), 11 ... Lower formwork piece 12 ... Top surface part, 13 ... … Side wall 14, 16 …… Bridging reinforcement 15 …… Mating edge 17 …… Edge, F …… Formwork
Claims (2)
脂からなる型枠を平板型枠上に補強リブの厚さに対応す
る間隔を置いて複数個敷設し、この上からコンクリート
等を打設した後、該型枠および平板型枠を撤去して補強
リブを有するスラブを形成するためのスラブ形成用の型
枠であって、 該型枠は、断面台形状の型枠片を少なくとも２個上下に
積層されてなり、 該型枠の最上部には、矩形の天面部と、該天面部の縁に
連続して拡大テーパー状に下方に押延された４面の側壁
部とから形成された底部が開口された断面中空台形状の
上部型枠片が配置され、 該上部型枠の下部には、上部型枠片の側壁部下端から連
続した側壁を形成するように、上部型枠片の側壁下端部
に嵌挿される嵌合縁を上端部に有する４面の側壁部から
形成されると共に上下面が開口した断面中空台形状の下
部型枠片が配置されており、 該上部型枠片の内側に形成されている中空部には、上部
型枠片の天面部の裏面と一体化され、対面する側壁面の
裏面と端部で接合する板状の橋渡し補強部材が天面部裏
面から下方に押延されて形成されており、 そして、該下部型枠片の内側に形成されている中空部に
は、対面する側壁面の裏面と端部で接合する板状の橋渡
し補強部が、側壁面上端部を結ぶ仮想線を上端として下
方に押延されて形成されていることを特徴とする補強リ
ブ付スラブ用型枠。1. A plurality of molds made of foamed synthetic resin having a rectangular top surface and a trapezoidal vertical cross section are laid on a flat plate mold at intervals corresponding to the thickness of the reinforcing ribs, and concrete or the like is laid on the mold. Is a mold for forming a slab for removing the mold and the flat plate mold to form a slab having a reinforcing rib, the mold being a trapezoidal mold piece in cross section. At least two pieces are vertically stacked, and on the uppermost part of the formwork, a rectangular top surface portion and four side wall portions downwardly extended in an enlarged taper shape continuously from the edges of the top surface portion are formed. An upper mold piece having a hollow trapezoidal cross-section with an open bottom formed from is arranged at the lower part of the upper mold part so that a continuous side wall is formed from the lower end of the side wall part of the upper mold part. Formed from four side wall parts having a fitting edge at the upper end part that is fitted into the lower end part of the side wall of the mold piece. A lower formwork piece having a hollow trapezoidal cross-section with an open upper and lower surface is arranged. The hollow part formed inside the upper formwork piece is integrated with the back surface of the top surface part of the upper formwork piece. A plate-like bridging reinforcing member that is joined at the end with the back surface of the facing side wall surface is pressed downward from the back surface of the top surface portion, and is formed inside the lower mold piece. In the portion, a plate-like bridging reinforcement portion joined at the end to the back surface of the facing side wall surface is formed by being pushed downward with an imaginary line connecting the upper end portions of the side wall surfaces as the upper end. Formwork for slabs with reinforcing ribs.
部の下端部が、下部型枠片に形成された板状の橋渡し補
強部の上端部と接触するように設けられていることを特
徴とする請求項第１項記載の補強リブ付スラブ用型枠。2. A plate-shaped bridging reinforcement portion formed on the upper mold piece is provided so that a lower end portion of the plate-shaped bridging reinforcement portion contacts an upper end portion of the plate-shaped bridging reinforcement portion formed on the lower mold piece. The mold for a slab with a reinforcing rib according to claim 1, characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987197728U JPH069242Y2 (en) | 1987-12-26 | 1987-12-26 | Formwork for slabs with reinforcing ribs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987197728U JPH069242Y2 (en) | 1987-12-26 | 1987-12-26 | Formwork for slabs with reinforcing ribs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01102340U JPH01102340U (en) | 1989-07-11 |
| JPH069242Y2 true JPH069242Y2 (en) | 1994-03-09 |
Family
ID=31488267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987197728U Expired - Lifetime JPH069242Y2 (en) | 1987-12-26 | 1987-12-26 | Formwork for slabs with reinforcing ribs |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069242Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018135802A1 (en) * | 2017-01-18 | 2018-07-26 | 주식회사 반석티브이에스 | Waffle-type slab mold |
| KR20230000268U (en) * | 2021-07-27 | 2023-02-03 | 주식회사 비에스티산업 | Supporting device for big sized waffle form |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5677468A (en) * | 1979-11-28 | 1981-06-25 | Sekisui Plastics | Method of constructing waffle slab and trapezoid flask for constructing waffle slab |
| JPS58148134U (en) * | 1982-03-30 | 1983-10-05 | 亀井 進 | hexagonal concrete formwork |
| JPH021392Y2 (en) * | 1984-10-31 | 1990-01-12 | ||
| JPH021393Y2 (en) * | 1984-10-31 | 1990-01-12 |
-
1987
- 1987-12-26 JP JP1987197728U patent/JPH069242Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018135802A1 (en) * | 2017-01-18 | 2018-07-26 | 주식회사 반석티브이에스 | Waffle-type slab mold |
| KR20230000268U (en) * | 2021-07-27 | 2023-02-03 | 주식회사 비에스티산업 | Supporting device for big sized waffle form |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01102340U (en) | 1989-07-11 |
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