JP2591847B2 - Concrete formwork binding device - Google Patents

Concrete formwork binding device

Info

Publication number
JP2591847B2
JP2591847B2 JP2153876A JP15387690A JP2591847B2 JP 2591847 B2 JP2591847 B2 JP 2591847B2 JP 2153876 A JP2153876 A JP 2153876A JP 15387690 A JP15387690 A JP 15387690A JP 2591847 B2 JP2591847 B2 JP 2591847B2
Authority
JP
Japan
Prior art keywords
hole
screw portion
head
screw head
screw
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
Application number
JP2153876A
Other languages
Japanese (ja)
Other versions
JPH0447097A (en
Inventor
薫 木村
昭夫 能町
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OOBAYASHIGUMI KK
SAGA KOGYO KK
Original Assignee
OOBAYASHIGUMI KK
SAGA KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by OOBAYASHIGUMI KK, SAGA KOGYO KK filed Critical OOBAYASHIGUMI KK
Priority to JP2153876A priority Critical patent/JP2591847B2/en
Publication of JPH0447097A publication Critical patent/JPH0447097A/en
Application granted granted Critical
Publication of JP2591847B2 publication Critical patent/JP2591847B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Lining And Supports For Tunnels (AREA)

Description

【発明の詳細な説明】 《産業上の利用分野》 この発明はコンクリート用型枠の結合装置に関し、特
にトンネル覆工工事のように型枠を頻繁に転用したり、
狭い空間で型枠の組立を行うのに好適な型枠の組立装置
に関する。
DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention relates to a concrete formwork joining device, and in particular, frequently converts a formwork as in tunnel lining work,
The present invention relates to a formwork assembling apparatus suitable for assembling a formwork in a narrow space.

《従来の技術》 例えば、トンネルの構築方法の一つにシールド工法が
知られている。
<< Conventional Technology >> For example, a shield construction method is known as one of tunnel construction methods.

この種の工法では堀削られた直後のトンネル断面に一
次覆工を施し、こののちに二次覆工を施すことが行われ
る。
In this type of construction method, primary lining is performed on the tunnel section immediately after excavation, and then secondary lining is performed.

覆工工事には、一般的にコンクリートが用いられ、特
に二次覆工の際には一次覆工の内面に環状の型枠を配置
し、コンクリートを型枠の外周側に打設することで二次
覆工コンクリート層が形成される。
Concrete is generally used for lining work, especially in the case of secondary lining, where an annular formwork is placed on the inner surface of the primary lining and concrete is cast on the outer side of the formwork. A secondary lining concrete layer is formed.

この時用いられる型枠は、例えば、実公昭61−39036
号公報に示すように、インバートフォーム部,サイドフ
ォーム部,クラウンフォーム部と呼ばれる部分をつなぎ
合わせることで円筒状に組み立てられ、この組立体を複
数個連結して使用される。
The mold used at this time is, for example, Japanese Utility Model Publication No. 61-39036.
As shown in the above publication, cylindrical parts are assembled by connecting parts called an invert foam part, a side foam part and a crown foam part, and a plurality of these assemblies are used by being connected.

この種の型枠は、工事の進捗にともなって養生が終了
した部分から順に二つの部分に分解され、前方に送ら
れ、再び円筒状に組み立てられるサイクルが繰返され
る。
This type of formwork is disassembled into two parts in order from the part where curing has been completed with the progress of construction, sent forward, and a cycle of assembling into a cylinder again is repeated.

ところが、この構成のコンクリート用型枠の組立,分
解にあっては以下に説明する技術的課題があった。
However, assembling and disassembling the concrete formwork having this configuration has the following technical problems.

《発明が解決しようとする課題》 すなわち、従来では型枠を円筒状に組立てるときや、
組立てたものを相互に連結する時には各フォーム間の接
合面や、軸方向に隣接するフォーム間の連結面に予め相
互に連通する多数の貫通孔を形成しておき、この貫通孔
にボルトを挿通し、ナットを締め付けることにより、組
立や連結を行っていた。
<< Problems to be solved by the invention >> That is, conventionally, when assembling a mold into a cylindrical shape,
When connecting the assembled parts to each other, a large number of through-holes are formed beforehand on the joint surface between the foams and the connecting surface between the foams adjacent in the axial direction, and bolts are inserted into these through-holes. Then, assembly and connection were performed by tightening nuts.

したがって、このような結合手段では、接合部の一方
の面からボルトを差し込み、他方の面にナットを位置さ
せ、一方を固定して連れ回りを防止しつつ他方を回して
締結しなければならない。
Therefore, in such a coupling means, a bolt must be inserted from one surface of the joint, a nut must be positioned on the other surface, and one must be fixed to prevent the co-rotation and turn the other to fasten.

つまり、以上の構成では一つ一つの結合操作、あるい
は結合解除操作を連結部分の両面から行わなければなら
ず、またこれら結合作業は多数箇所にわたるため、作業
能率が低かった。
In other words, in the above configuration, each joining operation or unjoining operation has to be performed from both sides of the connecting portion, and since these joining operations are performed at many places, the work efficiency is low.

また、作業時においてボルト,ナットは分離している
か、分離するものであるため、脱落などにより紛失しや
すかった。
In addition, the bolts and nuts are separated or separated at the time of work, and thus are easily lost due to falling off or the like.

この発明は以上の欠点を解消するものであって、雄ネ
ジ部および雌ネジ部を連結した状態で型枠の一方側の面
から結合あるいはその解除操作を行えるようにしたコン
クリート用型枠の結合装置を提供することを目的として
いる。
SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned drawbacks, and has a male threaded portion and a female threaded portion connected to each other. It is intended to provide a device.

《課題を解決するための手段》 前記目的を達成するため、この発明は、型枠同士の結
合面に形成された一対の貫通孔と、この貫通孔の一面側
に配置される雌ネジ部と、前記貫通孔の他面側にネジ頭
部を配置し、前記雌ネジ部に螺合する雄ネジ部を備えた
コンクリート用型枠の結合装置において、前記型枠の貫
通孔を長方形又は長円形に形成するとともに、前記雌ネ
ジ部の先端に前記貫通孔周囲に当接するフランジ部を設
ける一方、前記雄ネジ部のネジ頭部は前記貫通孔に挿通
可能であって、回動により前記貫通孔の長手方向と直交
させることで抜き止めされる形状に形成し、かつ前記フ
ランジ部には、前記フランジ部を当接させた状態におい
て、前記貫通孔の長手方向の内壁面に沿って延長配置さ
れる、貫通孔の内部に位置する肩部と、前記貫通孔を貫
通して他面側に突出することにより前記ネジ頭部が貫通
孔の長手方向と直交した位置でこのネジ頭部の回動を規
制する頭部とからなるストッパを突設したことを特徴と
するものである。
<< Means for Solving the Problems >> In order to achieve the above object, the present invention provides a pair of through holes formed on a joint surface between molds, and a female screw portion disposed on one surface side of the through hole. A screw head disposed on the other surface side of the through hole, and a concrete formwork coupling device provided with a male screw portion screwed into the female screw portion, wherein the through hole of the formwork is rectangular or oval. And a flange portion is provided at the tip of the female screw portion to abut around the through hole, while the screw head of the male screw portion is insertable into the through hole, and the through hole is rotated. It is formed in a shape that can be prevented from being pulled out by being perpendicular to the longitudinal direction of the through hole, and the flange portion is extended along the longitudinal inner wall surface of the through hole in a state where the flange portion is in contact with the flange portion. A shoulder located inside the through hole; A stopper comprising a head for restricting the rotation of the screw head at a position where the screw head is orthogonal to the longitudinal direction of the through hole by projecting to the other side through the through hole is provided. It is characterized by the following.

《作 用》 以上の構成によれば、雄ネジ部と雌ネジ部を連結した
状態で型枠の一方の面から貫通孔に差し込み、他面側に
突出する雄ネジ部のネジ頭部を貫通孔の長手方向と直交
した位置に回動する際に、フランジ部から突設するスト
ッパはかかる回動の障害とならない。また、ネジ頭部は
回動した後ストッパの頭部に当接して、雄ネジ部の回動
操作による雄ネジ部の連れ回りが防止された状態で抜止
めされることになる。
<Operation> According to the above configuration, the male screw portion and the female screw portion are connected to each other, and inserted into the through hole from one surface of the formwork to penetrate the screw head of the male screw portion projecting to the other surface. When rotating to a position orthogonal to the longitudinal direction of the hole, the stopper protruding from the flange does not hinder such rotation. Further, after the screw head rotates, the screw head comes into contact with the head of the stopper, and the screw head is prevented from being pulled out in a state in which the male screw portion is prevented from being rotated by the turning operation of the male screw portion.

《発明の実施例》 以下、この発明の一実施例を図面を用いて詳細に説明
する。
Embodiment of the Invention Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

第1図はこの発明にかかるコンクリート用型枠の結合
装置を示すものである。
FIG. 1 shows a concrete formwork joining apparatus according to the present invention.

図における結合装置1は、雌ネジ部2と雄ネジ部3お
よび雌ネジ部2の先端にスプリングワッシャ4を介して
取り付けられるフランジ5から構成されている。
The coupling device 1 shown in FIG. 1 includes a female screw portion 2, a male screw portion 3, and a flange 5 attached to a distal end of the female screw portion 2 via a spring washer 4.

この結合装置1によって結合される型枠6は、例えば
トンネルの二次覆工用型枠として用いられるものであ
り、両者の結合フランジ面6aには予め長方形の複数の貫
通孔7が形成され(図においては一ケ所のみを示してい
る)、両フランジ面6aを位置決めし結合した状態で貫通
孔7同士は一致する。
The formwork 6 joined by the joining device 1 is used, for example, as a secondary lining formwork of a tunnel, and a plurality of rectangular through holes 7 are formed in advance on both joint flange surfaces 6a ( Only one location is shown in the figure), and the through holes 7 coincide with each other when both flange surfaces 6a are positioned and connected.

前記雌ネジ部2は筒状をなし、その内面に雌ネジ2aを
刻設しているとともに、後部端面には矩形状のレンチ穴
2bが形成され、レンチ8を差し込んて回動するようにし
ている。
The female screw portion 2 has a cylindrical shape, and has a female screw 2a formed on the inner surface thereof, and a rectangular wrench hole on the rear end surface.
2b is formed, and the wrench 8 is inserted so as to rotate.

前記雄ネジ部3は、前記雌ネシ2aに螺合する雄ネジ3a
と、雄ネジ3aの先端に一体化されたネジ頭部3bとからな
っていて、ネジ頭部3bは前記貫通孔7の長手方向の寸法
より小さく、幅方向の寸法より大きな長方形に形成され
ている。
The male screw portion 3 is a male screw 3a screwed into the female screw 2a.
And a screw head 3b integrated at the tip of the male screw 3a. The screw head 3b is formed in a rectangular shape smaller than the longitudinal dimension of the through hole 7 and larger than the width dimension. I have.

また、前記フランジ5は前記貫通孔7の全体寸法より
大きく、その中心に前記雄ネジ3aを貫通する穴5aを形成
しているとともに、その両側に、フランジ5を型枠6の
貫通孔7の周囲に当接させた状態において、貫通孔7の
長手方向の内壁面に沿って延長配置される、貫通孔7の
内部に位置する肩部と、貫通孔7を貫通して他面側に突
出する頭部とからなるストッパブロック5bを突出形成し
ている。
The flange 5 is larger than the entire size of the through hole 7 and has a hole 5a formed at the center thereof so as to pass through the male screw 3a. In a state of being in contact with the periphery, a shoulder located inside the through hole 7 and extending along the longitudinal inner wall surface of the through hole 7, and protruding to the other surface side through the through hole 7. A stopper block 5b, which is formed of a movable head, is formed so as to protrude.

以上の構成の結合装置1は、各部品を組立た状態で前
記型枠6に装着される。
The coupling device 1 having the above configuration is mounted on the formwork 6 in a state where the components are assembled.

第2図,第3図(a)〜(c)はその取り付け順序を
示すもので、(a)に示すようにネジ頭部3bの長手方向
を貫通孔7の長手方向に一致させた状態で一面A側から
の挿通が可能となる。
FIGS. 2 and 3 (a) to (c) show the order of attachment, in which the longitudinal direction of the screw head 3b coincides with the longitudinal direction of the through hole 7 as shown in (a). Insertion from one side A is possible.

挿通した状態では(b)に示すように前記ネジ頭部3b
が他面B側に突出した状態でフランジ5が一面A側に突
き当たり、挿通が規制される。
In the inserted state, as shown in FIG.
Is protruded toward the other surface B, the flange 5 abuts against the one surface A, and the insertion is restricted.

次いで(c)に示すように前記ネジ頭部3bを90゜回動
すれば、第4図に示すように、各ストッパブロック5bの
頭部は貫通孔7を貫通して他面b側に突出しているの
で、前記ネジ頭部3bが、90゜回動した状態でこのストッ
パブロック5bの頭部の両側部に当接し、これ以上の回動
が阻止されるとともに、前記雌ネジ部2を回動する際に
おける雄ネジ部3およびフランジ5の連れ回りが防止さ
れた状態でネジ頭部3bは他面Bから抜止めされる。
Next, when the screw head 3b is rotated by 90 ° as shown in FIG. 4C, the head of each stopper block 5b passes through the through hole 7 and projects toward the other surface b as shown in FIG. As a result, the screw head 3b contacts both sides of the head of the stopper block 5b in a state where the screw head 3b is rotated by 90 °, further rotation is prevented, and the female screw 2 is turned. The screw head 3b is prevented from being pulled out from the other surface B in a state where the male screw portion 3 and the flange 5 are prevented from rotating together when moving.

この状態でレンチ穴2bにレンチを差し込み、雌ネジ部
2を回転させれば、フランジ5とネジ頭部3b間で両結合
フランジ面6aは一体的に締結され、完全固定ができる。
In this state, if a wrench is inserted into the wrench hole 2b and the female screw portion 2 is rotated, the two connecting flange surfaces 6a are integrally fastened between the flange 5 and the screw head 3b, and can be completely fixed.

なお、予め前記雄ネジ部3の雌ネジ部2に対するねし
込み量を最適な状態、つまり、貫通孔7に差し込んだ状
態でネジ頭部3bが他面B側に突出する程度にセットして
おけば、レンチ8の回動操作量を最小限にでき、作業能
率もさらに向上する。
In addition, the screw amount of the male screw portion 3 into the female screw portion 2 is set in advance to an optimum state, that is, the screw head 3b is inserted into the through hole 7 so that the screw head 3b projects to the other surface B side. If so, the amount of turning operation of the wrench 8 can be minimized, and the working efficiency is further improved.

以上の結合状態を解除するにはレンチ8を逆方向に回
転操作して緩めることより、前記とは逆の順序で結合装
置1を取り外すことができる。
In order to release the above-mentioned connection, the wrench 8 is rotated in the reverse direction to loosen the connection, so that the connection device 1 can be removed in the reverse order.

なお、この発明においては、前記貫通孔の形状は長方
形以外に第5図に示すような長円形の貫通孔10を選ぶこ
とができ、これら形状に応じて挿通可能であって回動操
作により抜止めされる前記ネジ頭部の形状も選択でき
る。
In the present invention, the shape of the through hole can be selected from oval through holes 10 as shown in FIG. 5 in addition to the rectangular shape. The shape of the screw head to be stopped can also be selected.

《発明の効果》 以上実施例によって詳細に説明したように、この発明
によるコンクリート用型枠の結合装置にあっては、雄ネ
ジ部と雌ネジ部を連結した状態で型枠の一方の面から貫
通孔に差し込み、他面側に突出する雄ネジ部のネジ頭部
を貫通孔の長手方向と直交した位置に回動すれば、ネジ
頭部は抜止めされるため、片側からの操作で結合作業が
でき、従来のボルト,ナットによる締結およびその解除
作業に比べて作業能率を大巾に向上できる。
<< Effects of the Invention >> As described in detail in the above embodiments, in the concrete mold joining apparatus according to the present invention, the male screw portion and the female screw portion are connected to each other from one surface of the mold. Insert the screw head into the through hole and turn the screw head of the male screw part protruding to the other side to the position orthogonal to the longitudinal direction of the through hole. Work can be performed, and work efficiency can be greatly improved as compared with the conventional fastening and releasing work using bolts and nuts.

また、片側からの突き差し作業なので、従来両側に手
が差し込めず、結合が不可能であった箇所であっても結
合が可能となるなどの利点がある。
In addition, since it is a piercing operation from one side, there is an advantage that a hand can not be inserted into both sides in the related art and a connection can be made even in a place where the connection was impossible.

また、この発明では雄ネジ部と雌ネジ部を分離するこ
となく結合およびその解除作業ができるので、脱落など
による紛失も防止できる。
In addition, according to the present invention, the connection and release operations can be performed without separating the male screw portion and the female screw portion, so that loss due to falling off can be prevented.

またこの発明では、雄ネジ部のネジ頭部をフランジ部
のストッパとともに貫通孔に挿通した後、これを回動す
るだけの簡単な操作によって、ネジ頭部をストッパの頭
部に当接させることができ、これによって雌ネジ部の回
動操作による雄ネジ部の連れ回りを容易に防止すること
ができる。
Further, according to the present invention, after the screw head of the male screw part is inserted into the through hole together with the stopper of the flange part, the screw head is brought into contact with the head of the stopper by a simple operation of simply rotating the screw head. Accordingly, it is possible to easily prevent the male screw portion from rotating together due to the rotation operation of the female screw portion.

【図面の簡単な説明】[Brief description of the drawings]

第1図はこの発明にかかるコンクリート用型枠の結合装
置の分解斜視図、第2図(a)〜(c)は同結合装置を
用いた型枠の結合手順を示す断面図、第3図(a)〜
(c)は同結合装置を用いた型枠の結合手順を示す正面
図、第4図は結合状態を示す斜視図、第5図は貫通孔の
他の形状例を示す説明図である。 1……結合装置、2……雌ネジ部、2a……雌ネジ 2b……レンチ穴、3……雄ネジ部、3a……雄ネジ 3b……ネジ頭部、5……フランジ、5b……ストッパブロ
ック 6……型枠、6a……結合フランジ部、 7,10……貫通孔、8……レンチ
FIG. 1 is an exploded perspective view of a concrete mold joining apparatus according to the present invention, FIGS. 2 (a) to 2 (c) are cross-sectional views showing a joining procedure of the form using the joining apparatus, and FIG. (A) ~
(C) is a front view showing a joining procedure of the formwork using the joining device, FIG. 4 is a perspective view showing a joined state, and FIG. 5 is an explanatory view showing another example of a shape of a through hole. 1 ... coupling device, 2 ... female screw part, 2a ... female screw 2b ... wrench hole, 3 ... male screw part, 3a ... male screw 3b ... screw head, 5 ... flange, 5b ... ... Stopper block 6 ... Form, 6a ... Flange joint, 7,10 ... Through hole, 8 ... Wrench

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】型枠同士の結合面に形成された一対の貫通
孔と、この貫通孔の一面側に配置される雌ネジ部と、前
記貫通孔の他面側にネジ頭部を配置し、前記雌ネジ部に
螺合する雄ネジ部を備えたコンクリート用型枠の結合装
置において、前記型枠の貫通孔を長方形又は長円形に形
成するとともに、前記雌ネジ部の先端に前記貫通孔周囲
に当接するフランジ部を設ける一方、前記雄ネジ部のネ
ジ頭部は前記貫通孔に挿通可能であって、回動により前
記貫通孔の長手方向と直交させることで抜き止めされる
形状に形成し、かつ前記フランジ部には、前記フランジ
部を当接させた状態において、前記貫通孔の長手方向の
内壁面に沿って延長配置される、貫通孔の内部に位置す
る肩部と、前記貫通孔を貫通して他面側に突出すること
により前記ネジ部が貫通孔の長手方向と直交した位置で
このネジ頭部の回動を規制する頭部とからなるストッパ
を突設したことを特徴とするコンクリート設型枠の結合
装置。
A pair of through-holes formed in a joint surface between the molds; a female screw portion disposed on one surface of the through-hole; and a screw head disposed on the other surface of the through-hole. A concrete formwork coupling device having a male screw portion screwed into the female screw portion, wherein the through hole of the formwork is formed in a rectangular or oval shape, and the through hole is formed at a tip of the female screw portion. While a flange portion is provided to be in contact with the periphery, the screw head of the male screw portion can be inserted into the through hole, and is formed in a shape that can be prevented from being pulled out by being orthogonal to the longitudinal direction of the through hole by rotation. And a shoulder portion located inside the through hole, which is extended along the inner wall surface in the longitudinal direction of the through hole when the flange portion is in contact with the flange portion, The screw part is protruded to the other side through the hole. Binding device of the concrete 設型 frame, wherein in the longitudinal direction and perpendicular position that projecting from the stopper comprising a head portion for restricting the rotation of the screw head of the through-hole.
JP2153876A 1990-06-14 1990-06-14 Concrete formwork binding device Expired - Lifetime JP2591847B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2153876A JP2591847B2 (en) 1990-06-14 1990-06-14 Concrete formwork binding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2153876A JP2591847B2 (en) 1990-06-14 1990-06-14 Concrete formwork binding device

Publications (2)

Publication Number Publication Date
JPH0447097A JPH0447097A (en) 1992-02-17
JP2591847B2 true JP2591847B2 (en) 1997-03-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2153876A Expired - Lifetime JP2591847B2 (en) 1990-06-14 1990-06-14 Concrete formwork binding device

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JP (1) JP2591847B2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427273U (en) * 1977-07-27 1979-02-22

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JPH0447097A (en) 1992-02-17

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