JP2006070610A - Form for concrete placement - Google Patents

Form for concrete placement Download PDF

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JP2006070610A
JP2006070610A JP2004256864A JP2004256864A JP2006070610A JP 2006070610 A JP2006070610 A JP 2006070610A JP 2004256864 A JP2004256864 A JP 2004256864A JP 2004256864 A JP2004256864 A JP 2004256864A JP 2006070610 A JP2006070610 A JP 2006070610A
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concrete
dam plate
concrete placement
ribs
mold
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JP4583845B2 (en
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Michihiro Miyakoshi
道博 宮腰
Toshihiko Hosono
俊彦 細野
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Fukuvi Chemical Industry Co Ltd
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Fukuvi Chemical Industry Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/028—Forming boards or similar elements with reinforcing ribs on the underside

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recyclable plastic form for concrete placement, which can prevent the deformation of sheathing boards by the tightening force of placed concrete and fastening metal fittings, and be excellent in workability and durability. <P>SOLUTION: A form 10 is provided with a plurality of rails 11 and a sheathing board 13 connecting the rails 11 and contacting placed concrete by its one side surface. The sheathing board 13 is a hollow panel made in one with a plurality of long vertically extending reinforcement ribs that connect two plates 16 and fill their internal space. The sheathing board 13 consists of vertical reinforcement ribs 18 located at the center 17 between each two rails 11 and perpendicular to the placed concrete surface, and slanting ribs 19 formed at other parts to be slanting to the placed concrete surface. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、プラスチック製のコンクリート打設用型枠に関する。   The present invention relates to a concrete casting mold made of plastic.

従来より、コンクリート打設用型枠（以下、単に「型枠」とも記す）としては、安価で、釘打ち等の加工がしやすく、軽量であるなどの理由から、ベニヤ合板等からなる堰板の裏面に桟木をくぎ打ちした合板型枠が用いられている。
しかしながら、このような合板型枠には、（ｉ）桟木の固定や型枠の連結に釘打ち作業が必要であり、施工性が悪い、（ii）釘打ちや、堰板の表面に塗布されるコンクリート剥離剤によって型枠が痛みやすく、転用回数が少ない（例えば、５回程度である）、(iii）転用回数を超えたものは、木材としてリサイクルできず、解体して焼却または埋立処分するしかない、などの欠点があった。 Conventionally, as a concrete casting form (hereinafter, simply referred to as “formwork”), a weir plate made of veneer plywood or the like because of its low cost, ease of processing such as nailing, and light weight. A plywood formwork is used that has been nailed to the back.
However, such a plywood formwork (i) requires a nailing operation for fixing the pier and joining the formwork, and is poor in workability. (Ii) It is applied to the surface of the nail and the dam plate. (Iii) If the number of diversions exceeds the number of diversions, (iii) those that exceed the diversion number cannot be recycled as wood and are disassembled for incineration or landfill disposal There was a fault, such as only there.

これらの問題を解決するものとしては、軽量で施工性がよく、リサイクル可能なプラスチック製の型枠が提案されている（例えば、特許文献１）。
この型枠は、パネル部（堰板部）と桟木部とが一体で押出成形された型枠であり、堰板部が、互いに平行でかつ長手方向に延びてパネル部を形成する２枚の板と、２枚の板間に傾斜して形成され、かつ前記長手方向に延びる第１リブ（傾斜リブ）とを備えるものである。
しかしながら、傾斜リブが形成された堰板部は、曲げ強度が高く、たわみが少ないものの、厚さ方向のつぶし強度が不足してしまう。そのため、堰板部の両表面からかかる圧力には弱かった。 As a solution to these problems, a plastic mold that is lightweight, has good workability, and can be recycled has been proposed (for example, Patent Document 1).
This formwork is a formwork in which a panel part (dam plate part) and a crosspiece part are integrally formed by extrusion, and the two slats are parallel to each other and extend in the longitudinal direction to form a panel part. A plate and a first rib (inclined rib) formed between the two plates and extending in the longitudinal direction are provided.
However, the dam plate portion on which the inclined ribs are formed has high bending strength and little deflection, but the crushing strength in the thickness direction is insufficient. Therefore, it was weak to the pressure applied from both surfaces of the weir plate.

型枠を建て込む際には、堰板部に穿設された挿通孔に、Ｐコンが端部近傍に設けられた丸棒状のセパレータを挿通し、このセパレータの端部に、型枠の裏面側からフォームタイ（登録商標）と呼ばれる締付金具を螺合により取り付け、セパレータのＰコンと締付金具との間で堰板部を挟み込むことが行われる。このとき、堰板部のつぶし強度が不足していると、Ｐコンと締付金具とによる締め付けによって堰板部が凹み、打設されたコンクリートがこの凹み部分において盛り上がってしまうという不具合を生じることがあった。
特開平７−２０７９３０号公報 When building a formwork, a round bar-shaped separator provided with P-con is provided in the vicinity of the end through an insertion hole formed in the barrier plate, and the back of the formwork is inserted into the end of the separator. A fastening bracket called Foam Tie (registered trademark) is attached by screwing from the side, and the dam plate portion is sandwiched between the P-con on the separator and the fastening bracket. At this time, if the crushing strength of the dam plate portion is insufficient, the dam plate portion is recessed by tightening with the P-con and the fastening bracket, and the placed concrete rises in the recessed portion. was there.
JP-A-7-207930

よって、本発明の目的は、Ｐコンと締付金具とによる締め付けによる堰板部の変形を抑えることができ、しかも、施工性、耐久性に優れ、リサイクル可能なプラスチック製のコンクリート打設用型枠を提供することにある。   Therefore, the object of the present invention is to suppress the deformation of the weir plate due to the tightening by the P-con and the fastening bracket, and is excellent in workability and durability, and is a recyclable plastic concrete casting mold. To provide a frame.

本発明のコンクリート打設用型枠は、間隔をあけて平行に設けられた複数の桟木部と、桟木部間を連結し、片面がコンクリート打設面となる堰板部とを有するプラスチック製のコンクリート打設用型枠であって、堰板部が、２枚の板と、これら板の間を連結し、鉛直方向に延びる複数の長尺の補強リブとが一体に成形された中空パネルであり、堰板部の補強リブが、桟木部間の中央部では、コンクリート打設面に対して直角に形成された直角リブ、およびコンクリート打設面に対して傾斜して形成された傾斜リブからなり、それ以外の部分では、傾斜リブからなることを特徴とする。   The concrete placement form of the present invention is made of plastic having a plurality of crosspieces provided in parallel at intervals, and a dam plate that connects the crosspieces and one side becomes a concrete placement surface. It is a concrete casting mold, and the dam plate portion is a hollow panel in which two plates and a plurality of long reinforcing ribs extending between the plates and extending in the vertical direction are integrally formed, The reinforcing rib of the dam plate portion is composed of a right-angle rib formed at a right angle with respect to the concrete placement surface and an inclined rib formed to be inclined with respect to the concrete placement surface in the central portion between the pier sections, Other parts are characterized by comprising inclined ribs.

本発明のコンクリート打設用型枠は、Ｐコンと締付金具とによる締め付けによる堰板部の変形を抑えることができ、しかも、施工性、耐久性に優れ、リサイクル可能である。   The concrete casting form of the present invention can suppress deformation of the weir plate due to tightening by the P-con and the fastening bracket, and is excellent in workability and durability and can be recycled.

以下、本発明を詳しく説明する。
図１〜図４は、本発明のプラスチック製のコンクリート打設用型枠の一例およびその設置形態を示す図である。この型枠１０は、等間隔に平行に設けられた６枚の中空平板状の桟木部１１と、桟木部１１の側縁から直角方向に延びて桟木部１１間を連結し、それぞれの片面が同一平面となってコンクリート打設面１２を形成している５枚の中空平板状の堰板部１３とを有して概略構成されるものである。
ここで、５枚の堰板部１３のうち、中央の堰板部１３には、セパレータ２２を挿通するための挿通孔２０があらかじめ穿設されている。 The present invention will be described in detail below.
1 to 4 are views showing an example of a plastic concrete casting form according to the present invention and an installation form thereof. This formwork 10 is connected between the crosspieces 11 extending in a right angle direction from the side edges of the crosspieces 11 with six hollow plate-like crosspieces 11 provided in parallel at equal intervals. It has a generally flat structure having five hollow flat plate-like weir plate portions 13 which are in the same plane and form the concrete placement surface 12.
Here, among the five dam plate portions 13, an insertion hole 20 for inserting the separator 22 is drilled in the central dam plate portion 13 in advance.

桟木部１１は、コンクリート打設面１２から立ち上がる平行な２枚の板１４，１４と、これら板の間を連結する複数の長尺の補強リブ１５とが一体に成形された中空状のパネルからなるものである。
また、堰板部１３は、平行な２枚の板１６，１６と、これら板の間を連結し、鉛直方向に延びる複数の長尺の補強リブとが一体に成形された中空パネルである。堰板部１３の補強リブは、桟木部１１間の中央部１７、すなわち、挿通孔２０があらかじめ穿設されている部分、またはコンクリート打設現場等で挿通孔を穿設する部分では、コンクリート打設面１２に対して直角に形成された直角リブ１８、およびコンクリート打設面１２に対して傾斜して、かつジグザグに連続して形成された傾斜リブ１９からなり、それ以外の部分、すなわち桟木部１１に近い部分であって、セパレータのための挿通孔を穿設しない部分では、傾斜リブ１９からなる。 The pier part 11 is composed of a hollow panel in which two parallel plates 14, 14 rising from the concrete placing surface 12 and a plurality of long reinforcing ribs 15 connecting the plates are integrally formed. It is.
Further, the dam plate portion 13 is a hollow panel in which two parallel plates 16 and 16 and a plurality of long reinforcing ribs connecting the plates and extending in the vertical direction are integrally formed. The reinforcing ribs of the dam plate 13 are formed in the center portion 17 between the crosspieces 11, that is, in the portion where the insertion hole 20 is previously drilled or in the portion where the insertion hole is drilled at the concrete placement site or the like. It consists of right-angled ribs 18 formed at right angles to the installation surface 12 and inclined ribs 19 that are inclined with respect to the concrete placement surface 12 and are formed continuously in a zigzag manner. The portion close to the portion 11 and not formed with an insertion hole for the separator is formed by an inclined rib 19.

この型枠１０は、例えば、プラスチック材料の押出成形等によって、桟木部１１および堰板部１３を一体成形して製造されるものである。
プラスチック材料としては、例えば、ポリプロピレン、ポリエチレンテレフタレート（ＰＥＴ）、ポリカーボネート、ポリ塩化ビニル、ポリエチレン、ＡＢＳ樹脂、ナイロンなどが挙げられる。中でも、機械的強度、コンクリートの離型性、耐アルカリ（耐コンクリート）性に優れていることから、ポリプロピレンが好適に用いられる。 The mold 10 is manufactured by integrally molding the crosspiece 11 and the dam plate 13 by, for example, extrusion molding of a plastic material.
Examples of the plastic material include polypropylene, polyethylene terephthalate (PET), polycarbonate, polyvinyl chloride, polyethylene, ABS resin, and nylon. Among these, polypropylene is preferably used because of its excellent mechanical strength, concrete releasability, and alkali resistance (concrete resistance).

桟木部１１および堰板部１３の厚さ、幅、高さ等の寸法は、特に限定はされず、例えば、従来の合板型枠の寸法と同程度に設定される。
また、桟木部１１および堰板部３２を構成する板１４、補強リブ３７、ならびに板１６、直角リブ１８、傾斜リブ１９の厚さも、特に限定はされないが、機械的強度および軽量化を考慮した場合、例えば、１〜３ｍｍ程度が適当である。 The dimensions such as the thickness, width, and height of the pier part 11 and the dam plate part 13 are not particularly limited, and are set to, for example, the same dimensions as those of a conventional plywood formwork.
Further, the thickness of the plate 14, the reinforcing rib 37, the plate 16, the right-angled rib 18, and the inclined rib 19 constituting the pier part 11 and the dam plate part 32 is not particularly limited, but considering the mechanical strength and weight reduction. In this case, for example, about 1 to 3 mm is appropriate.

また、桟木部１１の補強リブ１５、堰板部１３の補強リブ（直角リブ１８および傾斜リブ４２）の厚さは、板１４、板１６よりも薄い方が好ましい。中空パネル状の型枠１０においては、押出成形時における板と補強リブとの冷却速度の差によって、「ひけ」と呼ばれる、補強リブと接する位置に対応した板表面に垂直方向に延びる凹みが形成されることがあるが、板よりも補強リブを薄くすることで、このひけを防止できる。また、板よりも補強リブを薄くすることで型枠１０の強度を損なわずして質量アップ（コストアップ）を抑えることができる。   Further, it is preferable that the reinforcing ribs 15 of the pier part 11 and the reinforcing ribs (the right-angle ribs 18 and the inclined ribs 42) of the barrier plate part 13 are thinner than the plates 14 and 16. In the hollow panel-shaped mold 10, a dent extending in the vertical direction is formed on the plate surface corresponding to the position in contact with the reinforcing rib, which is called “sink”, due to the difference in cooling rate between the plate and the reinforcing rib during extrusion molding. However, this sink can be prevented by making the reinforcing rib thinner than the plate. Further, by making the reinforcing rib thinner than the plate, it is possible to suppress an increase in mass (cost increase) without impairing the strength of the mold 10.

直角リブ１８の間隔は、Ｐコンおよび締付金具のフランジの当接面の幅（直径）よりも狭くされていればよいが、市販のＰコン、フォームタイ（登録商標）などが堰板部１３に当接する当接面は、その幅（直径）が２０ｍｍ以上であるので、直角リブの間隔は、具体的には２０ｍｍ未満とするとよい。直角リブの間隔が２０ｍｍ以上となると、Ｐコンおよび締付金具の締め付けによる圧力を直角リブ１８で十分に支えることができなくなり、板１６が変形して堰板部１３が凹みやすくなる。   The interval between the right-angle ribs 18 may be narrower than the width (diameter) of the contact surface between the flanges of the P-con and the fastening bracket, but commercially available P-con, Foam Tie (registered trademark), etc. Since the width (diameter) of the contact surface that contacts 13 is 20 mm or more, the interval between the right-angled ribs is preferably less than 20 mm. When the interval between the right-angle ribs is 20 mm or more, the pressure due to the tightening of the P-con and the fastening bracket cannot be sufficiently supported by the right-angle ribs 18, and the plate 16 is deformed and the dam plate portion 13 is easily recessed.

次に、本発明のコンクリート打設用型枠の設置（建て込み）について、図３および図４を参照しながら説明する。
まず、複数の型枠１０を、堰板部１３のコンクリート打設面１２が同一平面となるように一列に並べる。
ついで、型枠１０の堰板部１３に穿設された挿通孔２０に、Ｐコン２１が両端近傍に設けられた丸棒状のセパレータ２２の端部をコンクリート打設面１２側から挿通する。
ついで、挿通孔２０から突き出たセパレータ２２の端部に、型枠１０の外側から締付金具２３を螺合により取り付け、セパレータ２２のＰコン２１と締付金具２３基端部のフランジ２４との間で堰板部１３を挟み込む。 Next, the installation (building) of the concrete placement form of the present invention will be described with reference to FIGS.
First, the plurality of molds 10 are arranged in a row so that the concrete placement surface 12 of the dam plate portion 13 becomes the same plane.
Next, the end portion of the round bar-shaped separator 22 provided with the P-con 21 in the vicinity of both ends is inserted into the insertion hole 20 formed in the dam plate portion 13 of the mold 10 from the concrete placement surface 12 side.
Next, a fastening bracket 23 is screwed onto the end portion of the separator 22 protruding from the insertion hole 20 from the outside of the mold 10, and the P-con 21 of the separator 22 and the flange 24 at the proximal end portion of the fastening bracket 23 are connected. The dam plate 13 is sandwiched between them.

ついで、別の複数の型枠１０を、すでに建て込まれた型枠１０に対してコンクリート打設面１２が対向するように、かつセパレータ２２の他端を挿通孔２０に挿通しながら建て込む。
ついで、挿通孔２０から突き出たセパレータ２２の端部に、型枠１０の外側から締付金具２３を螺合により取り付け、セパレータ２２のＰコン２１と締付金具２３基端部のフランジ２４との間で堰板部１３を挟み込む。 Next, another plurality of molds 10 are built so that the concrete placing surface 12 faces the already built mold 10 and the other end of the separator 22 is inserted into the insertion hole 20.
Next, a fastening bracket 23 is screwed onto the end portion of the separator 22 protruding from the insertion hole 20 from the outside of the mold 10, and the P-con 21 of the separator 22 and the flange 24 at the proximal end portion of the fastening bracket 23 are connected. The dam plate 13 is sandwiched between them.

さらに、締付金具２３の上下に角パイプからなる一対の横ばた材２５を配置し、これらを支持する座金２６および座金２６を止めるクサビ２７で、横ばた材２５を桟木部１１の側縁に当接させた状態で固定する。この横ばた材２５を配設することによって、型枠１０が、コンクリート打設時のコンクリートの圧力によって外側に膨らまないようにされている。   Further, a pair of flat members 25 made of square pipes are arranged above and below the fastening bracket 23, and a washer 26 for supporting them and a wedge 27 for stopping the washer 26, and the horizontal member 25 is connected to the pier 11 side. Fix in contact with the edges. By disposing the horizontal member 25, the formwork 10 is prevented from expanding outward due to the pressure of the concrete when placing the concrete.

以上説明したような型枠１０にあっては、堰板部１３の補強リブが、桟木部１１間の中央部１７、すなわちセパレータ２２が挿通される部分において、直角リブ１８および傾斜リブ１９の両方で構成されているので、Ｐコン２１と締付金具２３のフランジ２４とによる締め付け圧力を、直角リブ１８の幅方向で受けるようになり、圧力に対して十分なつぶし強度を発揮できる。これにより、それらの締め付けによる圧力を直角リブ１８で支えることができ、板１６が変形して堰板部１３が凹むことがない。これにより、打設されたコンクリートがこの凹み部分において盛り上がってしまうという不具合を生じることがない。   In the formwork 10 as described above, the reinforcing ribs of the dam plate portion 13 are both the right-angle ribs 18 and the inclined ribs 19 in the central portion 17 between the crosspieces 11, that is, in the portion where the separator 22 is inserted. Therefore, the tightening pressure by the P-con 21 and the flange 24 of the tightening bracket 23 is received in the width direction of the right-angled rib 18, and a sufficient crushing strength against the pressure can be exhibited. Thereby, the pressure by those clamping | tightening can be supported by the right angle rib 18, and the board 16 does not deform | transform and the dam board part 13 does not dent. Thereby, the malfunction that the laid concrete will rise in this dent part does not arise.

また、このような型枠１０にあっては、堰板部１３全体にわたって傾斜リブ１９が形成されているので、堰板部１３全体の曲げ強度が高くなる。よって、堰板部１３のたわみが少なくなり、堰板部１３がコンクリート打設時のコンクリートの圧力によって外側に膨らむように変形しにくくなる。
また、堰板部１３の傾斜リブ１９が、隣接する傾斜リブ１９に連続してジグザグに形成されているので、堰板部１３の曲げ強度がさらに高くなる。 Moreover, in such a formwork 10, since the inclined rib 19 is formed over the whole dam plate part 13, the bending strength of the whole dam plate part 13 becomes high. Therefore, the deflection of the dam plate portion 13 is reduced, and the dam plate portion 13 is hardly deformed so as to swell outward due to the pressure of the concrete when the concrete is placed.
Further, since the inclined ribs 19 of the dam plate portion 13 are formed in a zigzag manner continuously to the adjacent inclined ribs 19, the bending strength of the dam plate portion 13 is further increased.

また、型枠１０は、プラスチック製であるので、合板型枠のように吸水によって膨潤することがなく、耐久性がよく、転用回数を超えた後にはプラスチック材料としてリサイクルが可能である。また、型枠１０は、プラスチック製であるので、コンクリート離型性がよく、コンクリート剥離剤が不要である。
また、型枠１０は、桟木部１１と堰板部３２とが一体に成形されているので、桟木を固定するための釘打ちが不要であり、施工性がよく、釘打ちによる耐久性の低下もない。
このように、型枠１０の転用回数は、従来の合板型枠に比べて飛躍的に延び、コストダウンにつながる。 In addition, since the mold 10 is made of plastic, it does not swell due to water absorption unlike a plywood mold, has high durability, and can be recycled as a plastic material after exceeding the number of diversions. Moreover, since the mold 10 is made of plastic, it has good concrete releasability and does not require a concrete release agent.
Moreover, since the crosspiece part 11 and the dam plate part 32 are integrally molded in the mold 10, no nailing for fixing the crosspiece is necessary, the workability is good, and the durability is lowered by the nail driving. Nor.
In this way, the number of diversions of the mold 10 is dramatically increased compared to the conventional plywood mold, leading to cost reduction.

また、この型枠１０は、桟木部１１および堰板部１３が、２枚の板とこれらを連結する複数の長尺の補強リブとが一体に成形された中空状のものであるので、軽量であり、建て込みの際の作業性がよい。   In addition, the formwork 10 is lightweight because the crosspiece 11 and the dam plate 13 are formed in a hollow shape in which two plates and a plurality of long reinforcing ribs connecting them are integrally formed. Therefore, workability during installation is good.

なお、本発明のコンクリート打設用型枠は、図１に示すものに限定はされず、例えば、型枠１０の幅が狭い場合には、桟木部１１の枚数を減らしたものであっても構わない。
また、堰板部には、必ずしも挿通孔をあらかじめ設けておく必要はない。挿通孔は、コンクリート打設の現場において、セパレータを挿入する位置を決定した後に、現場で穿設するようにしても構わない。
また、堰板部の挿通孔を現場で穿設する場合は、穿設用のドリルの先端を補強リブと補強リブとの間に位置させ、横逸れなく挿通孔を開け易くするために、堰板部の表面（桟木部側）にドリルガイド用の凹溝を長手方向に設けてもよい。 The concrete placement form of the present invention is not limited to the form shown in FIG. 1. For example, when the width of the form 10 is narrow, the number of piers 11 may be reduced. I do not care.
Further, it is not always necessary to provide an insertion hole in the barrier plate portion in advance. The insertion hole may be drilled at the site after determining the position to insert the separator at the site of concrete placement.
In addition, when drilling the insertion hole of the dam plate portion on site, the tip of the drill for drilling is positioned between the reinforcing rib and the reinforcing rib so that the insertion hole can be easily opened without lateral deviation. You may provide the groove for a drill guide in the longitudinal direction on the surface (board part side) of a board part.

また、堰板部を透明もしくは半透明とすれば、型枠が光を透過するようになるので、型枠で周囲を囲まれたコンクリート打設の現場に外部の光を導入することができる。
また、コンクリート型枠の設置形態などに応じて、桟木部の一部を切断することも可能である。 Further, if the dam plate portion is transparent or translucent, the mold can transmit light, so that external light can be introduced into the concrete placement site surrounded by the mold.
Moreover, it is also possible to cut a part of the pier part according to the installation form of the concrete formwork.

また、本発明のコンクリート打設用型枠を建て込む際には、断面コの字形に屈曲したクリップを、隣接した側板部の側方から嵌め込み、隣接した側板部を挟持するようにして型枠を連結（仮固定）してもよい。
クリップの材質としては、金属、プラスチックなどを用いることができる。中でも、錆などの点でプラスチック製が好ましい。
また、クリップによる連結手段（仮固定手段）以外にも、隣接した桟木部同士を、これらに釘、ピンなどを打ち込むことによって固定する連結手段を用いても構わない。 Further, when the concrete placement form of the present invention is built, a clip bent in a U-shaped cross section is fitted from the side of the adjacent side plate portion, and the adjacent side plate portion is sandwiched between the form frames. May be connected (temporarily fixed).
As the material of the clip, metal, plastic, or the like can be used. Of these, plastic is preferable in terms of rust.
Besides the connecting means (temporary fixing means) using clips, connecting means for fixing adjacent piers by driving nails, pins, etc. into them may be used.

また、型枠の建て込みの際に用いられるセパレータとしては、図示例の丸棒状のものに限定はされず、例えば、平板状のものなど、公知のセパレータを用いることができる。
また、Ｐコン、締付金具も、図示例のものに限定はされず、例えば、ハット型のＰコンなど、公知のものを用いることができる。 In addition, the separator used when the formwork is built is not limited to the round bar shape in the illustrated example, and for example, a known separator such as a flat plate shape can be used.
Further, the P-con and the fastening metal fitting are not limited to those shown in the drawings, and known ones such as a hat-type P-con can be used.

本発明のコンクリート打設用型枠は、従来の合板型枠の欠点を克服しつつ、従来の合板型枠と同じように取り扱うことができ、合板型枠に代わる新しい型枠としてたいへん有望である。   The concrete casting mold of the present invention can be handled in the same way as a conventional plywood mold while overcoming the drawbacks of the conventional plywood mold, and is very promising as a new mold to replace the plywood mold. .

本発明のコンクリート打設用型枠の一例を示す斜視図である。It is a perspective view which shows an example of the formwork for concrete placement of this invention. 図１のコンクリート打設用型枠の上面図である。It is a top view of the formwork for concrete placement of FIG. 本発明のコンクリート打設用型枠の設置形態の一例を示す斜視図である。It is a perspective view which shows an example of the installation form of the formwork for concrete placement of this invention. セパレータの型枠への取り付け状態の一例を示す要部断面図である。It is principal part sectional drawing which shows an example of the attachment state to the formwork of a separator.

符号の説明Explanation of symbols

１０ 型枠（コンクリート打設用型枠）
１１ 桟木部
１２ コンクリート打設面
１３ 堰板部
１６ 板
１７ 中央部
１８ 直角リブ
１９ 傾斜リブ
10 Formwork (Concrete casting formwork)
DESCRIPTION OF SYMBOLS 11 Pier part 12 Concrete placement surface 13 Barrage part 16 Board 17 Center part 18 Right angle rib 19 Inclined rib

Claims (1)

間隔をあけて平行に設けられた複数の桟木部と、桟木部間を連結し、片面がコンクリート打設面となる堰板部とを有するプラスチック製のコンクリート打設用型枠であって、
堰板部が、２枚の板と、これら板の間を連結し、鉛直方向に延びる複数の長尺の補強リブとが一体に成形された中空パネルであり、
堰板部の補強リブが、桟木部間の中央部では、コンクリート打設面に対して直角に形成された直角リブ、およびコンクリート打設面に対して傾斜して形成された傾斜リブからなり、それ以外の部分では、傾斜リブからなることを特徴とするコンクリート打設用型枠。
A plastic concrete placement form having a plurality of pier parts provided in parallel at intervals, and a dam plate part that connects the pier parts and one side becomes a concrete placement surface,
The dam plate is a hollow panel in which two plates and a plurality of long reinforcing ribs extending between the plates and extending in the vertical direction are integrally formed,
The reinforcing rib of the dam plate portion is composed of a right-angle rib formed at a right angle with respect to the concrete placement surface and an inclined rib formed to be inclined with respect to the concrete placement surface in the central portion between the pier sections, In other parts, a concrete casting form characterized by comprising inclined ribs.
JP2004256864A 2004-09-03 2004-09-03 Concrete formwork Expired - Fee Related JP4583845B2 (en)

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JP2004256864A JP4583845B2 (en) 2004-09-03 2004-09-03 Concrete formwork

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JP4583845B2 JP4583845B2 (en) 2010-11-17

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0726494U (en) * 1993-10-26 1995-05-19 正昂 青山 Formwork panel
JP2003221927A (en) * 2002-01-30 2003-08-08 Fukuvi Chem Ind Co Ltd Concrete form and concrete form connection structure using the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0726494U (en) * 1993-10-26 1995-05-19 正昂 青山 Formwork panel
JP2003221927A (en) * 2002-01-30 2003-08-08 Fukuvi Chem Ind Co Ltd Concrete form and concrete form connection structure using the same

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