JPS6332259Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は、例えば段打ち工法によつて擁壁等を
構築する際に使用されるコンクリート型枠と端太
材との組付金具に関する。[Detailed Description of the Invention] The present invention relates to a fitting for assembling concrete formwork and thick timbers, which is used when constructing a retaining wall or the like by, for example, the step construction method.

一般的な段打ち工法を説明すると、第１図に示
すように、既設コンクリート部の高さと次打設コ
ンクリート部の高さとの合計高さを有するコンク
リート型枠の既設コンクリート部の上端部内に埋
設固着されたアンカーの遊端側を前記型枠に固定
し、型枠下端部には、前記アンカーを支点とし
て、型枠の上端側を次打設コンクリート部の空間
側に向つて傾倒させるように、型枠下端部を既設
コンクリート部の表面よりわずかに離間させる突
張り材を付設させて、両者アンカーと突張り材と
の協働によつて、次打設コンクリート部の側圧に
対抗させ、又、型枠は打設後取外して次工程に繰
返し使用する。 To explain the general step pouring method, as shown in Figure 1, the concrete is buried in the upper end of the existing concrete part of a concrete formwork that has the total height of the existing concrete part and the height of the next concrete part. The free end side of the fixed anchor is fixed to the formwork, and at the bottom end of the formwork, with the anchor as a fulcrum, the upper end side of the formwork is tilted toward the space side of the next concrete part to be poured. , by attaching a strut material that slightly separates the lower end of the formwork from the surface of the existing concrete section, and by the cooperation of both anchors and strut materials, it counteracts the lateral pressure of the concrete section to be poured next; After pouring, the formwork is removed and used repeatedly for the next process.

このような段打ち工法に使用されていた端太材
補強型枠は第１０図に示すように、端太材として
の二つの溝型部材０２をある間隔を持つて並設
し、その溝型部材０２の長辺部分を二つの扁平板
で連結して構成されたものを型枠０１に一体固定
することで構成されていた。このものは段打ち工
法用として専用化されたものであつて、製作コス
ト面で不利であり、また転用が効かず業者にとつ
て経済的負担増を招く欠点があつた。 As shown in Fig. 10, the round timber reinforcement formwork used in such tiered construction method consists of two groove-shaped members 02 as round timbers placed side by side with a certain distance between them. It was constructed by connecting the long side portions of the member 02 with two flat plates and integrally fixing them to the formwork 01. This product was specially designed for use in the step construction method, and was disadvantageous in terms of production cost.It also had the drawback of not being able to be used for other purposes, resulting in an increased economic burden for the contractor.

本考案は、かかる実情に鑑み、端太材として汎
用のものを利用して、段打ち工法用の端太材補強
型枠を簡単に組付けることができる金具を提供す
る点に目的がある。 In view of the above-mentioned circumstances, the present invention aims to provide a metal fitting that can easily assemble a thick-cut reinforcement form for the tiered construction method by using a general-purpose thick-cut piece.

上記目的を達成すべくなされた本考案に係るコ
ンクリート型枠と端太材との組付金具の特徴構成
は、コンクリート型枠の背面に押圧接当される角
端太材の二つに対して夫々、両者間にそれらの全
長に亘つて適当間隙を形成すべく互いに平行姿勢
にした状態で嵌合可能な二つの嵌合部を有すると
ともに、各嵌合部の外側には夫々締付連結用のフ
ランジ部を有し、かつ、前記両嵌合部間の中央部
位置にはコンクリート型枠に対する固定連結具の
挿通孔を設けてある点にある。 The characteristic structure of the fitting for assembling concrete formwork and thick timber according to the present invention, which was made to achieve the above object, is that the two square thick timbers are pressed into contact with the back side of the concrete formwork. Each has two fitting parts that can be fitted in a parallel position to each other to form an appropriate gap over their entire length, and each fitting part has a tightening connection on the outside. It has a flange portion, and an insertion hole for a fixing connector to the concrete formwork is provided at a central position between the two fitting portions.

つまり、前記嵌合部で角端太材を表裏方向より
嵌合保持させた一対の組付金具の、前記フランジ
部どうしを締付け連結し、それを前記コンクリー
ト型枠に対する固定連結具を介して、コンクリー
ト型枠の背面に押圧接当させる状態に組付けるこ
とによつて、所要の端太材補強型枠を組立てるこ
とができるから、従来のように専用化されたもの
を用いる要がなく、汎用の角端太材及び型枠をそ
のまま使用でき、もつて製作コスト面で有利であ
るとともに、施工業者における経済負担の低減化
に寄与する効果大である。 In other words, the flanges of a pair of fittings in which square end pieces are fitted and held from the front and back sides at the fitting portions are tightened and connected to each other, and the flange portions are connected to the concrete formwork via a fixed connector, By assembling it in pressure contact with the back of the concrete formwork, it is possible to assemble the required thick reinforcement formwork, so there is no need to use a specialized formwork as in the past, and it can be used for general purposes. The square end lumber and formwork can be used as is, which is advantageous in terms of production costs and has a great effect in contributing to reducing the economic burden on the contractor.

更に、第９図に示すように、端太材の多段使用
も可能であり、コンクリートの側圧に対する適用
範囲を広げることができる点も効果の一つであ
る。 Furthermore, as shown in FIG. 9, it is possible to use multi-stage thick timbers, and one of the advantages is that the range of application to the lateral pressure of concrete can be expanded.

以下、本考案構成の実施例を図面に基いて説明
する。 Embodiments of the configuration of the present invention will be described below with reference to the drawings.

第１図及び第２図は段打ち工法を示したもの
で、既設コンクリート部Ｘと次打設コンクリート
部の空間Ｙに亘つて設けられたコンクリート型枠
１と後記する組付金具Ａによつて型枠１の背面に
押圧接当された角端太材２，２とを配設し、型枠
１の下半分で既設コンクリート部Ｘの上下側端に
はアンカー７及び突張り材８である固定連結具５
が設けられ、アンカー７を支点として突張り材８
の型枠１の既設コンクリート部Ｘに対する離間作
用によつて、型枠１の上端部分をコンクリート打
設空間Ｙ内に臨ませた状態で打設コンクリートの
側圧に対抗させるものである。 Figures 1 and 2 show the step casting method, in which a concrete formwork 1 is provided spanning the space Y between the existing concrete part Square edge members 2, 2 pressed against the back of the formwork 1 are arranged, and anchors 7 and struts 8 are installed at the upper and lower ends of the existing concrete part X in the lower half of the formwork 1. Fixed connector 5
is provided, and a strut member 8 is provided with the anchor 7 as a fulcrum.
By separating the formwork 1 from the existing concrete portion X, the upper end portion of the formwork 1 faces into the concrete placement space Y and resists the lateral pressure of the poured concrete.

前記組付金具Ａを第３図に基いて詳述すると、
コンクリート型枠１の背面に押圧接当される角端
太材２の二つに対して夫々両者２，２間にそれら
の全長に亘つて適当間隙ａを形成すべく互いに平
行姿勢にした状態で嵌合可能な、扁平板１０を一
体形成した立上部３ａとその立上部３ａと平行な
板状部材３ｂとで形成される二つの嵌合部３，３
を有するとともに、各嵌合部３，３の外側には
夫々締付連結用のフランジ部４，４を有し、か
つ、前記両嵌合部３，３間の中央部位置にはコン
クリート型枠１に対する固定連結具５の挿通孔６
を設けてある。 The assembly fitting A will be described in detail based on FIG. 3.
Two of the square end members 2 which are pressed into contact with the back surface of the concrete formwork 1 are placed in a parallel posture to each other so as to form an appropriate gap a over the entire length between the two. Two fitting parts 3, 3 formed by a rising part 3a integrally formed with a flat plate 10 and a plate-like member 3b parallel to the rising part 3a, which can be fitted.
In addition, each of the fitting parts 3, 3 has a flange part 4, 4 for tightening connection on the outside thereof, and a concrete formwork is provided at the central position between the two fitting parts 3, 3. 1 through the insertion hole 6 of the fixed connector 5
is provided.

前記組付金具Ａとコンクリート型枠１と端太材
２との組付例を第１図で示したアンカー７及び突
張り材８と前記固定連結具５との連結部分との関
係で説明すると、第５図に示すように、前記突張
り材８はコンクリートＸ面に対する接当面を形成
する扁平板８Ａに対して直交する状態でしかも回
転可能に枢支された雄ねじ部材８Ｂから構成さ
れ、前記角端太材２，２を嵌合したナツト９付前
記組付金具Ａ，Ａの挿通孔６に貫通し、もつて出
退移動可能に構成し、前記した既設コンクリート
部Ｘ表面への突張り作用を行うものである。 An example of how to assemble the assembly fittings A, concrete formwork 1, and thick timbers 2 will be explained in terms of the relationship between the anchors 7 and struts 8 shown in FIG. 1 and the connecting parts of the fixed connectors 5. As shown in FIG. 5, the tension member 8 is composed of a male screw member 8B rotatably supported perpendicularly to a flat plate 8A forming a contact surface with respect to the concrete X surface. It penetrates the insertion hole 6 of the assembly fittings A, A with a nut 9 fitted with the thick square end members 2, 2, and is configured to be movable in and out, and is used to bulge onto the surface of the existing concrete part X. It is something that performs an action.

第６図に示すように、前記固定連結具５は一方
端を型枠１の立上部１Ａに穿設の孔１ａに挿通係
止すべくほぼ直角に折曲げ形成し、他方端に雄ね
じを形成し、前記孔１ａに挿通係止した状態で、
前記取付金具Ａの挿通孔６を貫通状態でナツト９
によつて締付固定される。 As shown in FIG. 6, the fixed connector 5 has one end bent at a substantially right angle to be inserted into a hole 1a drilled in the upright part 1A of the formwork 1, and a male screw is formed at the other end. and in a state where it is inserted into the hole 1a and locked,
Insert the nut 9 through the insertion hole 6 of the mounting bracket A.
It is tightened and fixed by.

第４図に示すように、前記アンカー７は、前記
端太材２，２を嵌合したナツト部材付着の前記組
付金具Ａ，Ａの挿通孔６に貫通させた雄ねじ付棒
状部材７Ａと先端が複数に枝分れしたアンカー部
材７Ｂとから構成され、前記雄ねじ付棒状部材７
Ａと螺合するナツト７Ｃとは、夫々、長さ方向等
間隔で、かつ、その直径方向に貫通する貫通孔７
ａと前記貫通孔７ａに対応する貫通孔７ｃを有
し、挿通ピン７ｂを介して前記金具Ａに対して取
付位置自在に構成される。前記棒状部材７Ａとア
ンカー部材７Ｂとは一体成形でもよく、又、図の
ようにねじによつて螺合してもよい。 As shown in FIG. 4, the anchor 7 has a male threaded rod-like member 7A that is inserted into the insertion hole 6 of the assembly fittings A, A attached to the nut member into which the end pieces 2, 2 are fitted, and a male-threaded rod member 7A at the tip thereof. The anchor member 7B is composed of a plurality of branched anchor members 7B, and the male threaded rod member 7
The nuts 7C that are screwed together with A have through holes 7 that are equally spaced in the length direction and penetrate in the diameter direction.
a and a through hole 7c corresponding to the through hole 7a, and is configured to be freely attachable to the metal fitting A via an insertion pin 7b. The rod-shaped member 7A and the anchor member 7B may be integrally molded, or may be screwed together as shown in the figure.

第７図、第８図は取付金具Ａの別実施例を示し
たもので、第８図は前記嵌合部３，３間の中央部
位置に前記扁平板１０の巾方向一端に、その扁平
板１０と直角姿勢になる状態で突片１１が固着さ
れ、もつて型枠１の下面に接当して、ボルト等で
挿通固定されるものを示す。 FIG. 7 and FIG. 8 show another embodiment of the mounting bracket A, and FIG. The projecting piece 11 is fixed in a state of being perpendicular to the flat plate 10, is brought into contact with the lower surface of the formwork 1, and is inserted and fixed with bolts or the like.

第７図に示すように、前記立上部３ａの外側に
沿つた状態で固着突出された略1/4円板状の突出
片１２が円弧部分を型枠１外方に突出させる状態
で、しかも、円弧に沿つた状態で円周部分に、か
つ、等間隔に挿通係止用の孔１２ａが設けられ、
足場用のＬ型支持部材１３の１端を前記孔１２ａ
と前記突出片１２の根元部分に穿設の挿通孔１２
ｂとの２ケ所で固定し、順次前記孔１２ａ位置を
変化させることによつて、足場の型枠１に対する
取付角度が変更可能である。 As shown in FIG. 7, a substantially 1/4 disk-shaped protruding piece 12 fixedly protrudes along the outside of the upright part 3a has an arcuate portion protruding outward from the formwork 1. , holes 12a for insertion and locking are provided on the circumference along the arc and at equal intervals,
One end of the L-shaped support member 13 for scaffolding is inserted into the hole 12a.
and an insertion hole 12 bored at the base of the protruding piece 12.
The attachment angle of the scaffold to the formwork 1 can be changed by fixing the scaffold at two locations (b) and sequentially changing the position of the hole 12a.

第９図は、コンクリート側圧に対抗して、端太
材２を多段に使用した例を示す。 FIG. 9 shows an example in which thick timbers 2 are used in multiple stages to counter concrete lateral pressure.

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

図面は本考案に係るコンクリート型枠と端太材
との組付金具の実施例を示し、第１図は施工状態
を示す縦断側面図、第２図は第１図における正面
図、第３図は全体斜視図、第４図は第１図におけ
るアンカー部分の要部拡大横断平面図、第５図は
第１図における突張り材の要部拡大横断平面図、
第６図は第１図における固定連結具の要部拡大横
断平面図、第７図及び第８図は夫々別実施例を示
す斜視図、第９図は別実施例で施工状態を示す横
断平面図、第１０図は従来例を示す横断平面図で
ある。 １……コンクリート型枠、２……角端太材、３
……嵌合部、４……フランジ部、５……固定連結
具、６……挿通孔。 The drawings show an embodiment of the fitting for assembling concrete formwork and thick timber according to the present invention, and Fig. 1 is a vertical side view showing the construction state, Fig. 2 is a front view of Fig. 1, and Fig. 3 is an overall perspective view, FIG. 4 is an enlarged cross-sectional plan view of the main part of the anchor part in FIG. 1, FIG. 5 is an enlarged cross-sectional plan view of the main part of the strut member in FIG. 1,
FIG. 6 is an enlarged cross-sectional plan view of the main part of the fixed connector in FIG. 1, FIGS. 7 and 8 are perspective views showing different embodiments, and FIG. 9 is a cross-sectional plane showing the construction state of another embodiment. 10 are cross-sectional plan views showing a conventional example. 1... Concrete formwork, 2... Square thick lumber, 3
...Fitting part, 4...Flange part, 5...Fixing connector, 6...Through hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ２本の端太材２に対して相対向させて挟着し締
付け固定する一対の組付金具Ａ，Ａであつて、コ
ンクリート型枠１の背面に押圧接当される角端太
材２に対して夫々、両者２，２間にそれらの全長
に亘つて適当間隔ａを形成すべく互いに平行姿勢
にした状態で嵌合可能な二つの嵌合部３，３を有
するとともに、各嵌合部３，３の外側には夫々締
付連結用のフランジ部４，４を有し、かつ、前記
両嵌合部３，３間の中央部位置にはコンクリート
型枠１に対する固定連結具５の挿通孔６を設けて
あるコンクリート型枠と端太材との組付金具。 A pair of assembly fittings A, A which are clamped and tightened and fixed to two thick end members 2 facing each other, and are attached to the square end members 2 which are pressed into contact with the back side of the concrete formwork 1. In contrast, each of the two fitting parts 3, 3 has two fitting parts 3, 3 which can be fitted in a state parallel to each other so as to form an appropriate distance a over the entire length between the two fitting parts 2, 2, respectively. 3, 3 have flanges 4, 4 for tightening connection on the outside, respectively, and a fixing connector 5 for the concrete formwork 1 is inserted in the central position between the two fitting parts 3, 3. A fitting for assembling a concrete formwork with holes 6 and thick timbers.