JP5639365B2 - Insert tool for remaining formwork panel and concrete formwork using the same - Google Patents

Insert tool for remaining formwork panel and concrete formwork using the same Download PDF

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JP5639365B2
JP5639365B2 JP2010031424A JP2010031424A JP5639365B2 JP 5639365 B2 JP5639365 B2 JP 5639365B2 JP 2010031424 A JP2010031424 A JP 2010031424A JP 2010031424 A JP2010031424 A JP 2010031424A JP 5639365 B2 JP5639365 B2 JP 5639365B2
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opening
insertion tool
concrete
formwork
panel
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実典 柳原
実典 柳原
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Description

本発明は、型枠パネルに対するセパレータの固定はもとより、コンクリート壁等に対して、内外装材等を堅固に固定可能な残存型枠パネル用の挿入具及びそれを用いたコンクリート型枠に関する。 The present invention relates to an insert for a residual form panel that can firmly fix an interior / exterior material to a concrete wall or the like as well as fixing a separator to a form panel, and a concrete form using the insert.

近年、コンクリートの打設に用いる型枠パネルにおいて、木材合板製の型枠パネルに代わり、鋼板製の型枠パネルが普及している。該鋼板製の型枠パネルは、基礎型枠としてコンクリートの打設・硬化後に解体撤去されることなく地中に埋没するのが通例であるため、解体の手間、資材の撤去又は建築現場からの運搬による人件費、工期及び運搬費用の削減を図ることができるという点にメリットがある。そんな中、以下のような鋼板製の型枠パネルが提供されている。   In recent years, in the formwork panel used for concrete placement, a steelwork formwork panel has become widespread instead of a wood plywood formwork panel. Since the steel formwork panel is usually buried in the ground without being dismantled and removed after the concrete is placed and hardened as a base formwork, the work of dismantling, removal of materials, or from the construction site There is a merit that it is possible to reduce the labor cost, the work period and the transportation cost by transportation. Meanwhile, the following formwork panels made of steel plate are provided.

例えば、薄肉金属板を屈曲させて片面側に開口する断面略コ字状のリブを複数並列に形成し、該リブにセパレータを挿通するためのセパ孔を設けた型枠パネルであって、該セパ孔が円形の主部と該主部のリブ長手方向両側に続く幅の狭い副部とからなる輪郭形状で、輪郭の上端にのみ形成された接続部を介して輪郭内と輪郭外とが接続した状態であり、初期状態では輪郭内部位である盲蓋部によってセパ孔が塞がれており、セパレータを挿通して盲蓋部をリブ非開口面側に押圧することによって開口する型枠パネルが提供されている。該セパレータには、セパ孔よりも若干幅狭な鍔状体が設けられているため、セパレータの挿通後に鍔状体の向きを変えることにより、鍔状体がセパ孔の輪郭に係合するので、セパレータを型枠パネルに固定することができる。(特許文献1)。   For example, a form panel in which a thin metal plate is bent to form a plurality of substantially U-shaped ribs opened in one side in parallel, and a separator hole is provided in the rib to insert a separator, Sepa hole is a contour shape consisting of a circular main portion and a narrow sub-portion continuing on both sides of the rib longitudinal direction of the main portion, and the inside and outside of the contour are connected via a connection portion formed only at the upper end of the contour. In the initial state, the sepa hole is closed by the blind lid part which is the part in the outline, and the mold is opened by inserting the separator and pressing the blind lid part to the non-opening surface side of the rib Panels are provided. Since the separator is provided with a bowl-like body slightly narrower than the separator hole, the hook-like body engages with the outline of the separator hole by changing the direction of the bowl-like body after the separator is inserted. The separator can be fixed to the formwork panel. (Patent Document 1).

また、コンクリート壁形成時に埋め殺し状態で配設された金属板の角波板からなる型枠パネルと内外装材としての発泡合成樹脂成形パネルとを係合片を用いて係合固定するコンクリート壁構造が提供されている。該係合片は、一端が型枠パネルの表面に形成された凹溝の底面に連結する連結部を備えるとともに他端が発泡合成樹脂成形パネルと係合する(特許文献2)。 Moreover, concrete wall for engaging fixing the foamed synthetic resin molded panel as formwork panels and interior and exterior material made of square wave plate of a metal plate disposed in killing state filled when the concrete wall form with a engaging piece Structure is provided. The engaging piece includes a connecting portion whose one end is connected to the bottom surface of a groove formed on the surface of the mold panel, and the other end engages with the foamed synthetic resin molded panel (Patent Document 2).

再表2006/114864号公報Table 2006/114864 特開2005−120623号公報JP 2005-120623 A

しかしながら、特許文献1に記載の技術では、セパレータを固定するためには、セパ孔にセパレータを挿通した後、型枠パネルの外側から固定具で締付ける必要があるため、セパ孔にセパレータを挿通したのみの段階では、セパレータが不安定でセパ孔から離脱してしまうという問題があった。また、セパ孔の一部、上端にのみ接続部を設けているため、盲蓋部を押圧してセパ孔を開口させることは容易であるものの、型枠パネルの運搬時の振動により接続部が切断されて意図せず開口してしまうという問題があった。   However, in the technique described in Patent Document 1, in order to fix the separator, it is necessary to tighten the fixing tool from the outside of the formwork panel after the separator is inserted into the separator hole. Therefore, the separator is inserted into the separator hole. At the stage only, there was a problem that the separator was unstable and separated from the separator hole. In addition, since the connection part is provided only at the top and part of the separator hole, it is easy to press the blind cover part to open the separator hole, but the connection part is caused by vibration during transportation of the formwork panel. There was a problem that it was cut and opened unintentionally.

また、コンクリートの打設及び硬化後にセパレータを締付けた固定具を取り外せば、セパレータ先端に設けられた雄ネジ部を介して、内外装材と連結することは可能であるが、型枠パネルにおいてセパレータを固定する箇所は、予めある程度限られているため、内外装材を設置する自由度が制限され、場合によっては内外装材を設置することができないという問題があった。そのため、建築物の基礎部分のコンクリート打設以外で使用する場合には、型枠パネルの撤去が必要となり、費用が掛かるため、基礎部分以外に使用することはなかった。   In addition, it is possible to connect to the interior and exterior materials via a male screw provided at the tip of the separator by removing the fixture that tightens the separator after placing and hardening the concrete. Since the location for fixing is limited to some extent in advance, the degree of freedom for installing the inner and outer materials is limited, and in some cases, the inner and outer materials cannot be installed. For this reason, when used for anything other than casting concrete on the foundation of a building, it was necessary to remove the formwork panel, and it was expensive, so it was not used for anything other than the foundation.

特許文献2に記載の技術では、型枠パネルに所定の間隔で設けられた連結部に係合片を係合することにより、型枠パネルに所定の間隔で設けられた盲蓋部に対応して、ある程度自由に内外装材の設置位置に合わせて係合片を取付けることができる。しかしながら、該係合片は、型枠パネルの凹溝の底面に形成された盲蓋部を打ち抜くことで開口する円形孔に対して、係合片の一端に設けられた弾性部材の連結片を嵌め込むことにより、型枠パネルに固定されるのみであるため、コンクリートを打設した際等、何かしらの圧力が掛かった際に連結片が円形孔から外れ易く、内外装材が壁面から離脱する可能性があるという問題があった。   In the technique described in Patent Document 2, the engagement piece is engaged with a connecting portion provided at a predetermined interval on the formwork panel, thereby corresponding to the blind lid portion provided at the predetermined interval on the formwork panel. Thus, the engaging piece can be attached to the installation position of the inner and outer materials freely to some extent. However, the engagement piece has a connection piece of an elastic member provided at one end of the engagement piece with respect to a circular hole that is opened by punching out the blind lid portion formed on the bottom surface of the concave groove of the form panel. Because it is only fixed to the formwork panel by fitting, the connecting piece is easily detached from the circular hole when some pressure is applied, such as when placing concrete, and the interior and exterior materials are detached from the wall surface. There was a problem that there was a possibility.

そこで、本発明は、型枠パネルに対するセパレータの固定はもとより、コンクリート壁等に対して、内外装材等を堅固且つ容易に固定可能な残存型枠パネル用の挿入具及びそれを用いた汎用性に優れたコンクリート型枠を提供することを課題とした。 Therefore, the present invention is not only for fixing the separator to the formwork panel, but also for the remaining formwork panel that can firmly and easily fix the interior and exterior materials to the concrete wall and the like, and versatility using the same. It was an object to provide a concrete formwork that was excellent in the process.

上記課題を解決するために、本発明は次のように構成した。すなわち、本発明に係る請求項1に記載の残存型枠パネル用の挿入具は、コンクリートの打設後に埋め込んで使用される残存型枠パネルに形成された開口部に挿通して用いられ、一方に開口する又は貫通するネジ挿入孔を有する長筒状に形成され、前記ネジ挿入孔の挿入方向に対して垂直に切欠いた一対の溝部が前記長筒状の外周面に平行に形成され、当該一対の溝部が前記開口部の縁端部に嵌合して固定されることを特徴としている。 In order to solve the above problems, the present invention is configured as follows. That is, the insert for a residual form panel according to claim 1 of the present invention is used by being inserted through an opening formed in a residual form panel to be used after being embedded in concrete. A pair of grooves formed perpendicular to the insertion direction of the screw insertion hole is formed in parallel with the outer peripheral surface of the long cylinder , The pair of grooves are fitted and fixed to the edge of the opening .

また、請求項2に記載のコンクリート型枠は、金属製薄板を屈曲させて片側面に開口する断面略コ字形のリブ部を複数並列に形成し、前記リブ部にセパレータ又は請求項1に記載の残存型枠パネル用の挿入具を挿通するための開口部を複数設け、前記開口部が大開口部と該大開口部の下方に続く幅の狭い小開口部とからなる輪郭形状である残存型枠パネルに、前記開口部の大開口部に前記挿入具を前記挿入具の溝部が形成された位置まで挿通した後、大開口部から小開口部へと下方移動させるとともに前記溝部と小開口部の縁端部とを嵌合して、前記挿入具を固定してなることを特徴としている。 The concrete form described in claim 2 is formed by bending a metal thin plate to form a plurality of substantially U-shaped rib portions opened in one side surface in parallel, and a separator or the rib according to claim 1. remaining provided with a plurality of openings for inserting the insertion tool remaining formwork panel, the opening is a contour consisting of a narrow small opening width following the downward of the large opening and the large opening After inserting the insertion tool into the large opening of the opening to the position where the groove of the insertion tool is formed, the mold panel is moved downward from the large opening to the small opening and the groove and the small opening. It is characterized in that the insertion tool is fixed by fitting with the edge of the part.

さらに、請求項3に記載のコンクリート型枠は、前記請求項2に記載の発明において、残存型枠パネルの所定の位置間隔で形成した開口部が、前記大開口部及び小開口部からなる輪郭形状の周端に沿った形状の切欠き部を、片幅の異なる複数の切残し片を余した状態でリブ部に形成し、前記切欠き部に包囲された部分を盲蓋部として、前記挿入具で該盲蓋部を押圧することにより最も幅広の切残し片以外の切残し片が切断されて開通可能になることを特徴としている。 Furthermore, the concrete mold according to claim 3 is the contour according to the invention according to claim 2, wherein the openings formed at predetermined position intervals of the remaining mold panel are the large opening and the small opening. A notch portion having a shape along the peripheral edge of the shape is formed in the rib portion in a state where a plurality of uncut pieces having different widths are left, and a portion surrounded by the notch portion is used as a blind cover portion, By pressing the blind lid portion with an insertion tool, the remaining cut pieces other than the widest cut piece are cut and opened.

本発明に係る請求項1に記載の残存型枠パネル用の挿入具(以下、単に「挿入具」という。)及び請求項2に記載のコンクリート型枠によれば、当該挿入具に形成した溝部が残存型枠パネルの小開口部縁端に嵌り込んで固定されるので、該挿入具のネジ挿入孔にセパレータ及び内外装材を取付けるためのネジを挿入して螺合することにより、容易且つ堅固にセパレータや内外装材を取付けることができる。 According to the insert for the remaining form panel according to claim 1 of the present invention (hereinafter simply referred to as “insertion tool”) and the concrete form according to claim 2, the groove formed in the insert Is fitted and fixed to the edge of the small opening of the remaining mold panel, so that by inserting and screwing the screws for attaching the separator and the interior / exterior material into the screw insertion holes of the insertion tool, A separator and interior / exterior materials can be firmly attached.

また、請求項3に記載のコンクリート型枠によれば、残存型枠パネル(以下、単に「型枠パネル」という。)に所定の位置間隔で形成した開口部に、該開口部の輪郭形状の周端に沿った切欠きを刻んで盲蓋部を設けたことにより、開口させる必要のない開口部は、そのまま盲蓋部を開口せずにしておけば、コンクリートの流出を最低限に抑えることができ、また、内外装材を取付けるべく挿入具等で押圧して盲蓋部の上端切残し部を維持したまま開口部を形成させた場合には、セパレータ及び挿入具の挿通及び固定が可能になるとともに、挿通及び固定後に盲蓋部を下方のセパレータ又は挿入具に押さえれば、大開口部を覆い隠してコンクリートの流出を防止することができる。 According to the concrete form described in claim 3, the contour shape of the opening is formed in the opening formed in the remaining form panel (hereinafter simply referred to as “form form panel”) at a predetermined position interval . By providing a blind cover by carving a notch along the periphery, the opening that does not need to be opened can be kept to a minimum if the blind cover is not opened. In addition, when the opening is formed while the upper end of the blind cover is maintained by pressing with an insertion tool or the like to attach the interior / exterior material, the separator and the insertion tool can be inserted and fixed. At the same time, if the blind lid portion is pressed by the lower separator or insertion tool after insertion and fixing, the large opening portion is covered and the concrete can be prevented from flowing out.

さらに、型枠パネルに所定の位置間隔で設けた開口部の輪郭形状の周端に沿った形状の切欠き部を、上端よりも下端の方が幅狭である切残し片を余した状態でリブ上に上下端に形成して盲蓋部を設けたことにより、開口部からのコンクリートの流出を防止することができ、また、複数の切残し片を設けたことにより、運搬時の切残し片の切断を防止することができるとともに、切残し片の一部が他の切残し片に比べて幅狭に形成されているので、挿入具等で盲蓋部を押圧した際には、幅狭の切残し片のみが切断されて、開口部を開口することができる。   Furthermore, in the state where the notch portion of the shape along the peripheral edge of the contour shape of the opening portion provided at a predetermined position interval on the formwork panel is left with an uncut piece that is narrower at the lower end than at the upper end. By forming the blind lids on the ribs on the upper and lower ends, it is possible to prevent the concrete from flowing out from the openings, and by providing multiple uncut pieces, uncut pieces during transportation The cutting of the piece can be prevented and a part of the uncut piece is formed narrower than the other uncut pieces. Only the narrow uncut piece can be cut to open the opening.

本発明に係るコンクリート型枠の構成を示す斜視図である。It is a perspective view which shows the structure of the concrete formwork which concerns on this invention. 型枠パネルに対する挿入具の挿入方法を示す図である。It is a figure which shows the insertion method of the insertion tool with respect to a formwork panel. コンクリート型枠及び内外装材を示す斜視図である。It is a perspective view which shows a concrete formwork and an interior / exterior material. コンクリート型枠に内外装材を設置した状態を示す断面図である。It is sectional drawing which shows the state which installed the interior / exterior material in the concrete formwork. コンクリート型枠に内外装材を設置した状態を示す断面図である。It is sectional drawing which shows the state which installed the interior / exterior material in the concrete formwork. コンクリート型枠に内外装材を設置した状態を示す断面図である。It is sectional drawing which shows the state which installed the interior / exterior material in the concrete formwork. 型枠パネルに対してセパレータを固定した状態を示す断面図である。It is sectional drawing which shows the state which fixed the separator with respect to the formwork panel. 挿入具の形状を示す図である。It is a figure which shows the shape of an insertion tool. 合成樹脂製又は木製の挿入具の実施例を示す図である。It is a figure which shows the Example of a synthetic resin or wooden insertion tool. スリットを示す図である。It is a figure which shows a slit.

以下、図面に基づいて本発明を具体的に説明する。まず、図1は、本発明に係るコンクリート型枠1の構成を示す斜視図であり、該コンクリート型枠1は、型枠パネル2と挿入具3とから構成される。   Hereinafter, the present invention will be specifically described with reference to the drawings. First, FIG. 1 is a perspective view showing a configuration of a concrete formwork 1 according to the present invention, and the concrete formwork 1 is composed of a formwork panel 2 and an insertion tool 3.

型枠パネル2は、金属製薄板を屈曲させて片側面に開口する断面略コ字形のリブ部2aが複数並列に形成されているとともに、コンクリートの打設形状に併せて型枠パネル2を変形するためのスリット2bが、金属製薄板の屈曲を可能にすべく設けられている。該リブ部2aには、上側の切残し片4a及び該上側よりも幅狭な下側の切残し片4bの2箇所の切残しを設けた逆瓢箪型の切欠き4cによって縁取られた盲蓋部4、又は、上側の大開口部5aから下側の幅狭な小開口部5bに続く輪郭形状の開口部5が、所定の位置間隔で複数設けられる。該開口部5は、該盲蓋部4を押圧して開口してなるものであり、その手順は、以下の図2を用いて具体的に説明する。   The formwork panel 2 is formed by bending a thin metal plate and forming a plurality of rib portions 2a having a substantially U-shaped cross section that opens on one side surface, and deforms the formwork panel 2 in accordance with the concrete placement shape. A slit 2b is provided to allow the metal thin plate to be bent. The rib portion 2a has a blind lid bordered by an inverted saddle-shaped cutout 4c provided with two cutouts, an upper cutout piece 4a and a lower cutout piece 4b narrower than the upper piece. A plurality of contour-shaped openings 5 following the portion 4 or the upper large opening 5a to the lower narrow small opening 5b are provided at predetermined positions. The opening 5 is formed by pressing the blind lid portion 4 and the procedure is specifically described with reference to FIG.

挿入具3は、金属製の六角長ナットであって、長筒状の外周面に切欠いた溝部3aと、内面にネジ溝が刻まれたネジ挿入孔3bが形成されている。該溝部3aは、挿入具3の外周面に、ネジ挿入孔3bの挿入方向に対して垂直に切欠いた溝形状に形成され、外周面の対面側とともに一対の溝部3aが、挿入具3の外周面に平行に設けられている。   The insertion tool 3 is a metal hexagonal long nut, and is formed with a groove portion 3a cut out on an outer peripheral surface of a long cylindrical shape, and a screw insertion hole 3b in which a screw groove is cut on the inner surface. The groove 3a is formed in the outer peripheral surface of the insertion tool 3 in the shape of a groove cut perpendicularly to the insertion direction of the screw insertion hole 3b, and the pair of groove parts 3a together with the opposite side of the outer peripheral surface are formed on the outer periphery of the insertion tool 3. It is provided parallel to the surface.

該挿入具3は、大開口部5aに挿入可能且つ小開口部5bには挿入不可能な径サイズで形成されており、挿入具3を溝部3aの設けられた位置まで大開口部5aに挿入して、そのまま下方に移動させると、溝部3aが小開口部5bの縁端部に嵌合して固定可能な形状に形成されている。なお、該挿入具3は、金属製の六角長ナットに限られるものではなく、合成樹脂製・木製であってもよく、また、断面円形状、その他多角形状であってもよい。   The insertion tool 3 is formed in a size that can be inserted into the large opening 5a and cannot be inserted into the small opening 5b, and the insertion tool 3 is inserted into the large opening 5a up to the position where the groove 3a is provided. And if it moves below as it is, the groove part 3a will be formed in the shape which can be fitted and fixed to the edge part of the small opening part 5b. The insertion tool 3 is not limited to a metal hexagonal long nut, and may be made of synthetic resin or wood, or may have a circular cross section or other polygonal shape.

図2は、挿入具3を開口部5に嵌合する様子を示す図である。図2(a)、盲蓋部4を押圧して開く。ここで、下側の切残し片4bは上側の切残し片4aよりも幅狭に設定して形成されているため、該盲蓋部4を押圧すると下側の切残し片4bのみが切断されて、盲蓋部4が上側の切残し片4aを軸として上方へと移動する。図2(b)、大開口部5bに挿入具3を挿入し、そのまま下方に移動させて挿入具3の溝部を小開口部縁端に嵌合する。図2(c)、盲蓋部4を開口部5方向に押圧して、開口状態の大開口部5aを閉じ、コンクリートの流出を防止する。   FIG. 2 is a view showing how the insertion tool 3 is fitted into the opening 5. 2 (a), the blind lid 4 is pressed and opened. Here, since the lower uncut piece 4b is formed to be narrower than the upper uncut piece 4a, when the blind cover portion 4 is pressed, only the lower uncut piece 4b is cut. Thus, the blind lid portion 4 moves upward about the upper uncut piece 4a. In FIG. 2B, the insertion tool 3 is inserted into the large opening 5b and moved downward as it is to fit the groove of the insertion tool 3 to the edge of the small opening. In FIG. 2 (c), the blind lid 4 is pressed in the direction of the opening 5 to close the large opening 5a in the open state and prevent the concrete from flowing out.

上記のようにして、型枠パネル2に複数の挿入具3を嵌合させ、コンクリート型枠1を形成する。図3(a)は、コンクリート型枠1を示す斜視図である。図中、符号6は内外装材、7はネジ、8は硬化したコンクリートを示す。コンクリート型枠1は、建築物の基礎等をコンクリート8で打設する箇所にレール(図示せず。)上に設置され、設置された一対のコンクリート型枠1間にコンクリート8を流入及び硬化させて建築物の基礎を構築する。なお、図3(a)中には、一対のコンクリート型枠1のうち、一方のコンクリート型枠1のみ図示する。このようにコンクリート8が硬化すると、コンクリート型枠1の挿入具3は、型枠パネル2よりも内側に位置する部分がコンクリート8に埋設されるため、堅固に固設することができる。   As described above, a plurality of insertion tools 3 are fitted into the formwork panel 2 to form the concrete formwork 1. FIG. 3A is a perspective view showing the concrete mold 1. In the figure, reference numeral 6 is an interior / exterior material, 7 is a screw, and 8 is hardened concrete. The concrete formwork 1 is installed on a rail (not shown) at a place where a building foundation or the like is placed with concrete 8, and the concrete 8 is allowed to flow and harden between a pair of installed concrete formwork 1. To build the foundation of the building. In FIG. 3A, only one concrete mold 1 out of the pair of concrete molds 1 is shown. When the concrete 8 is cured in this way, the insertion tool 3 of the concrete mold 1 can be firmly fixed because the portion located inside the mold panel 2 is embedded in the concrete 8.

そして、図3(b)に示すように、所定の位置間隔で設けた挿入具3に対して、内外装材6に所定の位置間隔で設けたネジ挿入孔6aを添えるとともに、ネジ7を内外装材6の外側から挿入及び螺合することにより、コンクリート型枠1に内外装材6を容易に付設することができる。なお、図3(a)及び(b)には図示していないが、型枠パネル2の各リブ部2aには、所定の位置間隔で開口部5が複数設けられている。そのため、内外装材6を付設するのに適した箇所にある開口部5に挿入具3を嵌合すれば、様々な形状又はサイズの内外装材6に対応して付設することができ、敢えて内外装材6の形状等に合せた型枠パネル2を製造する必要もないので、本発明に係るコンクリート型枠1は、汎用性に優れている。   Then, as shown in FIG. 3 (b), the insertion tool 3 provided at a predetermined position interval is attached with a screw insertion hole 6a provided at a predetermined position interval on the inner and outer material 6, and the screw 7 is attached inside. By inserting and screwing from the outside of the exterior material 6, the interior / exterior material 6 can be easily attached to the concrete mold 1. Although not shown in FIGS. 3A and 3B, each rib portion 2a of the formwork panel 2 is provided with a plurality of openings 5 at a predetermined position interval. Therefore, if the insertion tool 3 is fitted into the opening 5 in a location suitable for attaching the inner / outer material 6, it can be attached corresponding to the inner / outer material 6 of various shapes or sizes. Since it is not necessary to manufacture the formwork panel 2 according to the shape of the interior / exterior material 6 and the like, the concrete formwork 1 according to the present invention is excellent in versatility.

図4は、コンクリート型枠1に内外装材6を付設した状態を示す断面図である。開口部5の小開口部5bに嵌合した挿入具3は、溝部3aの嵌合箇所より型枠パネル2の内側は、コンクリート8に埋設され、対して外側は、型枠パネル2より外方向に突出した状態で固定される。該外側に突出した挿入具3の先端面に内外装材6に形成したネジ挿入孔6aを添え、ネジ7を挿入及び螺合して、内外装材6をコンクリート型枠1に付設する。コンクリート型枠1と内外装材6との間には、挿入具3が外側に突出した幅だけ空間ができる。該空間は、図5に示すように、断熱材αと外装材6との間の通気層として利用することが可能であり、本発明に係るコンクリート型枠1及び挿入具3によれば、いわゆる通気構法も容易に実現することができる。なお、図5に示す矢印は、通気の状態を表す空気の流れである。   FIG. 4 is a cross-sectional view showing a state in which the interior / exterior material 6 is attached to the concrete mold 1. The insertion tool 3 fitted in the small opening 5b of the opening 5 is embedded in the concrete 8 on the inner side of the formwork panel 2 from the fitting portion of the groove 3a, whereas the outer side is outward from the formwork panel 2. It is fixed in a protruding state. A screw insertion hole 6a formed in the inner / outer packaging material 6 is attached to the distal end surface of the insertion tool 3 protruding outward, and the screws 7 are inserted and screwed together to attach the inner / outer packaging material 6 to the concrete mold 1. A space is formed between the concrete mold 1 and the inner and outer materials 6 by a width that the insertion tool 3 protrudes outward. As shown in FIG. 5, the space can be used as a ventilation layer between the heat insulating material α and the exterior material 6, and according to the concrete formwork 1 and the insertion tool 3 according to the present invention, the so-called space is used. A ventilation construction method can also be easily realized. In addition, the arrow shown in FIG. 5 is the flow of air showing the state of ventilation | gas_flowing.

また、上記図4に示した付設形態とは異なり、通気層を設ける必要がない場合、或いは、よりコンパクトに内外装材6を付設する必要がある場合には、図6に示すように、リブ部2a側を外側にコンクリート型枠1を固定して、該リブ部2a内に挿入具3の先端部以外を収めるとともに、該挿入具3の先端面にネジ7を介して内外装材6を固設することもできる。   In addition, unlike the attachment form shown in FIG. 4 above, when it is not necessary to provide a ventilation layer, or when it is necessary to attach the interior / exterior material 6 more compactly, as shown in FIG. The concrete mold 1 is fixed with the portion 2a side outside, and the rib portion 2a accommodates the portion other than the distal end portion of the insertion tool 3, and the inner and outer materials 6 are attached to the distal end surface of the insertion tool 3 via screws 7. It can also be fixed.

図7は、一対のコンクリート型枠1を併設してセパレータを固定した状態を示す断面図である。上記のような内外装材6を付設しない場合には、型枠パネル2の開口部5を利用して、セパレータ9を固定することも可能である。上記実施例と同様に、開口部5の小開口部5bに挿入具3を嵌合及び固定するととともに、挿入具3のネジ挿入孔3bにセパレータ9を挿通する。該セパレータ9の先端部には、ネジ溝が形成されており、挿入具3の外側方向に該ネジ溝を露出させて、固定金具10を該ネジ溝に螺合して固定する。   FIG. 7 is a cross-sectional view showing a state in which a separator is fixed with a pair of concrete molds 1 provided. When the interior / exterior material 6 as described above is not provided, the separator 9 can be fixed using the opening 5 of the formwork panel 2. Similarly to the above embodiment, the insertion tool 3 is fitted and fixed to the small opening 5 b of the opening 5, and the separator 9 is inserted into the screw insertion hole 3 b of the insertion tool 3. A thread groove is formed at the tip of the separator 9, and the thread groove is exposed in the outer direction of the insertion tool 3, and the fixing fitting 10 is screwed into the thread groove to be fixed.

このように、内外装材6を付設しない場合であっても、セパレータ9を介したコンクリート型枠1として利用することができる。したがって、複数ある開口部5に嵌合した夫々の挿入具3に対して、内外装材6を付設するためのネジ7を挿入してもよいし、セパレータ9を挿入してコンクリート型枠1を固定することもできるため、セパレータ9本発明に係るコンクリート型枠1及び挿入具3は、汎用性に優れている。   Thus, even when the inner / outer packaging material 6 is not provided, it can be used as the concrete formwork 1 with the separator 9 interposed therebetween. Accordingly, a screw 7 for attaching the inner / outer material 6 may be inserted into each of the insertion tools 3 fitted in the plurality of openings 5, or the separator 9 may be inserted to attach the concrete formwork 1. Since it can also fix, separator 9 The concrete formwork 1 and the insertion tool 3 which concern on this invention are excellent in versatility.

図8(a)及び(b)は、挿入具3の形状を示す図である。以上説明してきたが、上記挿入具3は、ネジ挿入孔3bが貫通して形成されているため、セパレータ9を挿入しない場合には流入させたコンクリート8が、該ネジ挿入孔3bから外側にそこから流出してしまうおそれがある。そのため、挿入具3の内側、すなわちコンクリート8に埋設される側にフランジ3cを設けて、或いは、挿入具3の内側からネジ3dを螺合して、ネジ挿入孔3を非貫通にしてもよい。これにより、ネジ挿入孔3bからのコンクリート8の流出を防止することができる。   8A and 8B are views showing the shape of the insertion tool 3. FIG. As described above, the insertion tool 3 is formed with the screw insertion hole 3b penetrating therethrough, so that when the separator 9 is not inserted, the concrete 8 that has flowed in is moved outward from the screw insertion hole 3b. There is a risk of spilling out. Therefore, a flange 3c may be provided on the inner side of the insertion tool 3, that is, the side embedded in the concrete 8, or a screw 3d may be screwed from the inner side of the insertion tool 3 to make the screw insertion hole 3 non-penetrating. . Thereby, the outflow of the concrete 8 from the screw insertion hole 3b can be prevented.

上記実施例では、挿入具として金属製の六角ナット状を使用したが、上述の通り、合成樹脂製又は木製の挿入具を用いてもよい。図9に示すように、挿入具3を合成樹脂製又は木製で構成した場合には、金属製の挿入具3のようにネジ挿入孔3bの内面に予めネジ溝を刻む必要はなく、ネジ7を挿入する際の押圧により螺合することができる。   In the above embodiment, a metal hexagonal nut shape is used as the insertion tool. However, as described above, a synthetic resin or wooden insertion tool may be used. As shown in FIG. 9, when the insertion tool 3 is made of synthetic resin or wood, it is not necessary to cut a screw groove in advance on the inner surface of the screw insertion hole 3b unlike the metal insertion tool 3, and the screw 7 Can be screwed together by pressing during insertion.

ネジ挿入孔3bの内面に予めネジ溝を刻む必要がないので、製造コストを削減することができ、また、合成樹脂製の挿入具3であれば、成形型により挿入具3の製造が容易となるため、金属製の挿入具3に比べて製造コストを1/5〜1/10にまで削減することができる。なお、図9に示した断面六角形の挿入具3に限られるものではなく、金属製の挿入具3と同様、断面円形状、その他多角形状であってもよい。   Since it is not necessary to cut a screw groove in advance on the inner surface of the screw insertion hole 3b, the manufacturing cost can be reduced, and if the insertion tool 3 is made of synthetic resin, the insertion tool 3 can be easily manufactured by a molding die. Therefore, the manufacturing cost can be reduced to 1/5 to 1/10 compared to the metal insertion tool 3. Note that the insertion tool 3 is not limited to the hexagonal cross section shown in FIG. 9, and may have a circular cross section or other polygonal shape, similar to the metal insertion tool 3.

上記実施例では、型枠パネルにスリット2bを設けたが、図10に示すように2本のスリット2bを設けてもよい。実際の建築現場においては、コンクリート8を打設する形状に合わせて、型枠パネル2を屈曲させる場合が多々あるが、図10に示すように、スリット2bを2本設けることにより、夫々1本の屈曲角度が小さくなるため、型枠パネル2に対する負担を軽減することができる。   In the above embodiment, the slit 2b is provided on the formwork panel, but two slits 2b may be provided as shown in FIG. In an actual construction site, there are many cases where the formwork panel 2 is bent in accordance with the shape in which the concrete 8 is placed, but as shown in FIG. 10, by providing two slits 2b, one each. Therefore, the burden on the formwork panel 2 can be reduced.

本発明に係るコンクリート型枠1によれば、コンクリート型枠1を埋設させる建築基礎工事のみならず、内外装材6を容易に付設することができるので、住宅、マンションやビルなどの外壁や内壁にも利用することができる。   According to the concrete formwork 1 according to the present invention, not only the building foundation work for embedding the concrete formwork 1 but also the interior and exterior materials 6 can be easily attached. Can also be used.

1 コンクリート型枠
2 型枠パネル
2a リブ部
2b スリット
3 挿入具
3a 溝部
3b ネジ挿入孔
3c フランジ
3d ネジ
4 盲蓋部
4a 切残し片
4b 切残し片
5 開口部
5a 大開口部
5b 小開口部
6 内外装材
6a ネジ挿入孔
7 ネジ
8 コンクリート
9 セパレータ
10 固定金具
DESCRIPTION OF SYMBOLS 1 Concrete formwork 2 Formwork panel 2a Rib part 2b Slit 3 Insertion tool 3a Groove part 3b Screw insertion hole 3c Flange 3d Screw 4 Blind cover part 4a Uncut piece 4b Uncut piece 5 Opening 5a Large opening 5b Small opening 6 Inner and outer material 6a Screw insertion hole 7 Screw 8 Concrete 9 Separator 10 Fixing bracket

Claims (3)

コンクリートの打設後に埋め込んで使用される残存型枠パネルに形成された開口部に挿通して用いられ、
一方に開口する又は貫通するネジ挿入孔を有する長筒状に形成され、前記ネジ挿入孔の挿入方向に対して垂直に切欠いた一対の溝部が前記長筒状の外周面に平行に形成され、当該一対の溝部が前記開口部の縁端部に嵌合して固定されることを特徴とする残存型枠パネル用の挿入具。
It is used by being inserted through the opening formed in the residual formwork panel that is embedded and used after placing concrete,
Formed in a long cylinder shape having a screw insertion hole that opens or penetrates on one side, and a pair of grooves cut out perpendicular to the insertion direction of the screw insertion hole is formed in parallel to the outer peripheral surface of the long cylinder shape ; An insertion tool for a residual form panel, wherein the pair of groove portions are fitted and fixed to edge portions of the opening .
金属製薄板を屈曲させて片側面に開口する断面略コ字形のリブ部を複数並列に形成し、前記リブ部にセパレータ又は請求項1に記載の残存型枠パネル用の挿入具を挿通するための開口部を複数設け、前記開口部が大開口部と該大開口部の下方に続く幅の狭い小開口部とからなる輪郭形状である残存型枠パネルに、前記開口部の大開口部に前記挿入具を前記挿入具の溝部が形成された位置まで挿通した後、大開口部から小開口部へと下方移動させるとともに前記溝部と小開口部の縁端部とを嵌合して、前記挿入具を固定してなることを特徴とするコンクリート型枠。 A plurality of substantially U-shaped rib portions opened in one side by bending a metal thin plate are formed in parallel, and a separator or an insert for a remaining form panel according to claim 1 is inserted through the rib portions. A plurality of openings are provided, and the opening is formed in a residual form panel having a contour shape including a large opening and a small opening having a small width following the large opening. After the insertion tool is inserted to the position where the groove portion of the insertion tool is formed, the insertion tool is moved downward from the large opening to the small opening and the groove and the edge of the small opening are fitted, A concrete formwork characterized by fixing an insertion tool. 前記残存型枠パネルの開口部は、前記大開口部及び小開口部からなる輪郭形状の周端に沿った形状の切欠き部を、片幅が異なる複数の切残し片を余した状態でリブ部に形成し、前記切欠き部に包囲された部分を盲蓋部として、前記挿入具で該盲蓋部を押圧することにより最も幅広の切残し片以外の切残し片が切断されて開通可能になることを特徴とする請求項2に記載のコンクリート型枠。 The opening of the remaining formwork panel is a rib with a plurality of uncut pieces having different widths remaining in the cutout portion along the peripheral edge of the contour shape composed of the large opening and the small opening. The part surrounded by the notch is defined as a blind cover part, and by pressing the blind cover part with the insertion tool, the remaining cut pieces other than the widest cut piece can be cut and opened. The concrete formwork according to claim 2, wherein
JP2010031424A 2010-02-16 2010-02-16 Insert tool for remaining formwork panel and concrete formwork using the same Expired - Fee Related JP5639365B2 (en)

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JPH0717509U (en) * 1993-09-02 1995-03-28 株式会社ホクコン Formwork device that forms a step mounting recess in a concrete wall
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