JPH0649991A - Clamper for concrete formwork - Google Patents
Clamper for concrete formworkInfo
- Publication number
- JPH0649991A JPH0649991A JP20354392A JP20354392A JPH0649991A JP H0649991 A JPH0649991 A JP H0649991A JP 20354392 A JP20354392 A JP 20354392A JP 20354392 A JP20354392 A JP 20354392A JP H0649991 A JPH0649991 A JP H0649991A
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- tie
- rear end
- male screw
- cone member
- 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.)
- Granted
Links
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、対向する型枠を対向
面間に所定の間隔を保持した状態で結合固定するコンク
リート型枠の締結装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastening device for a concrete formwork, which joins and fixes the facing formwork in a state in which a predetermined distance is maintained between the facing faces.
【０００２】[0002]
【従来の技術】従来のコンクリート型枠締結装置は、両
端にコーン部材を取付けたセパレータを型枠間に配置
し、型枠に設けた孔に外面側から挿入したフォームタイ
の先端雄ねじをコーン部材に螺合連結し、型枠の外面に
端太材を沿わせた状態でフォームタイに挿入した締付金
具を締付け、端太材を介して型枠を外面側から押圧し、
対向する型枠をセパレータの両端コーン部材間の間隔に
保持する構造になっている。2. Description of the Related Art In a conventional concrete formwork fastening device, a separator having cone members attached to both ends is arranged between the formworks, and a male screw at the tip of a foam tie inserted from the outside into a hole provided in the formwork is used as the cone member. Screwed to, tighten the tightening metal fitting inserted in the form tie with the thick material along the outer surface of the formwork, press the formwork from the outer surface side through the thick material,
It has a structure in which opposing molds are held in the space between the cone members at both ends of the separator.
【０００３】[0003]
【発明が解決しようとする課題】ところで、従来の締結
装置は、型枠に対するセパレータ及びフォームタイの取
付け、端太材の配置、締付金具の締付け等を個々に行な
わなければならないため、型枠の組立及び解体に時間と
手間がかかり、施工コストが高くつくという問題があ
る。By the way, in the conventional fastening device, it is necessary to individually attach the separator and the foam tie to the mold, arrange the thick end material, and tighten the fastening metal fittings. There is a problem in that it takes time and labor to assemble and dismantle and the construction cost is high.
【０００４】また、コーン部材とフォームタイの結合作
業は型枠を挾んで行なわなければならないため、結合時
に両者の位置合せが行ない難く、作業性が悪いという問
題がある。Further, since the work of connecting the cone member and the foam tie must be carried out by sandwiching the form, it is difficult to align the two at the time of connection, and there is a problem that workability is poor.
【０００５】そこでこの発明は、型枠に端太材を固定し
てユニット化することが可能になり、型枠の締結及び解
体が能率よく行なえると共に、締結時のコーン部材とフ
ォームタイの結合が円滑に行なえるコンクリート型枠の
締結装置を提供することを課題としている。Therefore, according to the present invention, it becomes possible to unitize the thick material to the mold to unitize it, and to perform the fastening and dismantling of the form efficiently, and to connect the cone member and the foam tie at the time of fastening. An object of the present invention is to provide a fastening device for a concrete formwork that can be smoothly performed.
【０００６】[0006]
【課題を解決するための手段】上記のような課題を解決
するため、第１の発明は、セパレータの端部に取付ける
コーン部材と、先端部に抜止用のフランジ部を有し、後
端側外周面に締付けナットを螺合するための雄ねじが形
成され、型枠に対して成形面側から貫通状に取付ける筒
状のフォームタイと、前記フォームタイ内に挿入する軸
部の後端にフォームタイの後端部に当接する頭部を設
け、先端にコーン部材と螺合連結する雄ねじを設けたボ
ルトとからなり、前記ボルトの後端頭部にフォームタイ
の雄ねじと等しいピッチの雄ねじを設け、両雄ねじの部
分に回り止用のナットを螺合した構成を採用したもので
ある。In order to solve the above problems, the first invention has a cone member to be attached to the end of a separator and a retaining flange at the tip, and the rear end side. A male thread for screwing a tightening nut is formed on the outer peripheral surface, a cylindrical form tie that is attached to the formwork from the molding surface side in a penetrating manner, and a foam at the rear end of the shaft part that is inserted into the form tie. It comprises a bolt having a head that abuts the rear end of the tie, and a bolt having a male screw at the tip for screwing and coupling with a cone member, and a male screw having the same pitch as the male screw of the form tie is provided at the rear end of the bolt. , A structure in which a non-rotating nut is screwed into the both male threads is adopted.
【０００７】同第２の発明は、セパレータの端部に取付
けるコーン部材と、先端部に抜止用のフランジ部を有
し、後端側外周面に締付けナットを螺合するための雄ね
じが形成され、型枠に対して成形面側から貫通状に取付
ける筒状のフォームタイと、前記フォームタイ内に挿入
する軸部の後端にフォームタイの後端部に当接する頭部
を設け、先端にコーン部材と螺合連結する雄ねじを設け
たボルトとからなり、前記ボルトの後端頭部にフォーム
タイの雄ねじに外嵌螺合する螺筒を設けた構成を採用し
たものである。According to the second aspect of the invention, a cone member attached to the end of the separator and a retaining flange at the tip are formed, and a male screw for screwing a tightening nut is formed on the outer peripheral surface on the rear end side. , A tubular form tie that is attached to the formwork from the molding surface side in a penetrating manner, and a head that abuts the rear end of the form tie at the rear end of the shaft that is inserted into the form tie. A configuration is adopted in which a cone member and a bolt provided with a male screw for screwing connection are provided, and a screw cylinder that is externally engaged with a male screw of a form tie is provided at a rear end head portion of the bolt.
【０００８】[0008]
【作用】対向配置する型枠の各々に対して、成形面側か
らフォームタイを挿入し、型枠の外面に沿わせた端太材
をフォームタイに挿入した締付金具とフォームタイの雄
ねじに螺合したナットによって締付け固定し、一方型枠
におけるフォームタイに挿入したボルトでこの型枠の内
面側に一方のコーン部材を介してセパレータを取付けて
おく。[Function] For each of the molds arranged oppositely, form ties are inserted from the molding surface side, and the end thick material along the outer surface of the form is inserted into the form ties to tighten the fittings and form tie male screws. It is fixed by tightening with a screwed nut, and the separator is attached to the inner surface side of this form via one cone member with the bolt inserted in the form tie in the form.
【０００９】上記ボルトとコーン部材の結合時には、回
り止用のナットをフォームタイとボルトの両者の雄ねじ
にわたって螺合させるか、又は螺筒をフォームタイの雄
ねじに螺合させ、フォームタイに対してボルトを回り止
状とし、ボルトに対するコーン部材の螺合が共回りのな
い状態で行なえるようにする。At the time of connecting the bolt and the cone member, a non-rotating nut is screwed over both male threads of the form tie and the bolt, or a screw cylinder is screwed on the male thread of the form tie, and the form tie is attached to the form tie. Make the bolt non-rotating so that the cone member can be screwed onto the bolt without co-rotation.
【００１０】両型枠を対向起立させ、他方型枠のフォー
ムタイに挿入したボルトを他方のコーン部材と結合する
ことにより、セパレータを介して両型枠を締結する。The two molds are fastened to face each other, and the bolts inserted into the foam ties of the other mold are joined to the other cone member to fasten the two molds via the separator.
【００１１】このときのボルトと他方コーン部材の結合
は、回り止用のナットをフォームタイの雄ねじ部分に螺
合させておき、フォームタイに対してフリーにしたボル
トを回動させてコーン部材と螺合すればよい。To connect the bolt and the other cone member at this time, a nut for preventing rotation is screwed into the male thread portion of the form tie, and the bolt freed with respect to the form tie is rotated to form the cone member. Just screw them together.
【００１２】また、第２の発明においては、ボルトの回
動によりコーン部材と共に螺筒がフォームタイに対して
螺合することになる。Further, in the second aspect of the invention, the screw cylinder is screwed into the foam tie together with the cone member by the rotation of the bolt.
【００１３】[0013]
【実施例】以下この発明の実施例を添付図面に基づいて
説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１４】図１のように、締結装置は、セパレータ１
と、このセパレータ１の両端に螺合装着するコーン部材
２と、型枠３に設けた孔４に成形面側から挿入して貫通
状に取付けるフォームタイ５と、フォームタイ５内に挿
入してコーン部材２と螺合連結するボルト６と、フォー
ムタイ５に外嵌挿する締付金具７及びフォームタイ５に
螺合して締付金具７を押圧するナット８と、フォームタ
イ５とボルト６の両者にわたって外嵌螺合させる回り止
用のナット２１との組合せによって構成されている。As shown in FIG. 1, the fastening device includes a separator 1
A cone member 2 screwed to both ends of the separator 1, a form tie 5 inserted into the hole 4 provided in the mold 3 from the molding surface side and attached in a penetrating manner, and inserted into the form tie 5. A bolt 6 that is screwed and connected to the cone member 2, a tightening metal fitting 7 that is externally fitted and inserted into the form tie 5, and a nut 8 that is screwed into the form tie 5 and presses the tightening metal fitting 7, a form tie 5, and a bolt 6. It is constituted by a combination with a rotation-preventing nut 21 which is externally fitted and screwed over both of the above.
【００１５】前記コーン部材２は、図２と図５に示すよ
うに、合成樹脂を用い、外周面がテーパ状となり、軸心
に沿ってねじ孔９が貫通すると共に、型枠３に当接する
大径側端面には、ねじ孔９に向けて下り傾斜となる凹入
テーパ面１０が形成されている。As shown in FIGS. 2 and 5, the cone member 2 is made of synthetic resin and has a tapered outer peripheral surface. The screw hole 9 penetrates along the axis and contacts the mold 3. A concave tapered surface 10 is formed on the large-diameter side end surface so as to be inclined downward toward the screw hole 9.
【００１６】図示の場合、凹入テーパ面１０には、放射
状の多数の凹溝１１を設け、この凹溝１１に係合する工
具でコーン部材２に回転を与えることにより、コンクリ
ート内からの離脱が簡単に行なえるようにしている。ま
た、この凹溝１１は合成樹脂によるコーン部材の成形時
の歪発生を防ぐ役目もしている。In the illustrated case, the recessed taper surface 10 is provided with a large number of radial recessed grooves 11, and the cone member 2 is rotated by a tool engaging with the recessed grooves 11 so as to be removed from the concrete. Is easy to do. Further, the concave groove 11 also has a role of preventing the strain from being generated when the cone member is molded with the synthetic resin.
【００１７】前記フォームタイ５は図１に示すように、
円筒状に形成されて先端部外周にフランジ部１２が周設
され、後端側外周面に雄ねじ１３が設けられている。The foam tie 5 is, as shown in FIG.
The flange portion 12 is formed in a cylindrical shape and is provided around the outer periphery of the front end portion, and the external thread 13 is provided on the outer peripheral surface on the rear end side.
【００１８】上記フランジ部１２は、コーン部材２にお
いて凹入テーパ面１０で形成された空間内に納まる大き
さに形成され、その先端面は凹入テーパ面１０に対応す
るテーパ面に形成されている。このフォームタイ５は、
型枠３の孔４及び型枠３の背面に固定した縦添材１４を
貫通することになる。The flange portion 12 is formed in such a size that it can be accommodated in the space formed by the recessed tapered surface 10 in the cone member 2, and its tip end surface is formed into a tapered surface corresponding to the recessed tapered surface 10. There is. This form tie 5
The holes 4 of the mold 3 and the vertical additive 14 fixed to the back surface of the mold 3 are penetrated.
【００１９】前記ボルト６は、図５のように、軸部１５
の先端外周面にコーン部材２のねじ孔９と螺合する雄ね
じ１６が設けられ、後端部には回動操作用の頭部１７が
設けられている。The bolt 6 has a shaft portion 15 as shown in FIG.
A male screw 16 that is screwed into the screw hole 9 of the cone member 2 is provided on the outer peripheral surface of the tip of the, and a head 17 for rotating operation is provided on the rear end.
【００２０】このボルト６は、フォームタイ５内に挿入
した状態で先端の雄ねじ１６をコーン部材２のねじ孔９
と所定量螺合したとき、頭部１７の端面がフォームタイ
５の後端面に当接する長さを有する。The bolt 6 has the male screw 16 at the tip thereof inserted in the foam tie 5 and the screw hole 9 of the cone member 2.
Has a length such that the end surface of the head portion 17 comes into contact with the rear end surface of the foam tie 5 when screwed in a predetermined amount.
【００２１】上記ボルト６の雄ねじ１６における先端面
は、コーン部材２のねじ孔９との螺合操作が円滑に行な
えるよう、球面もしくはテーパ面に形成するようにして
もよい。The tip surface of the male screw 16 of the bolt 6 may be formed into a spherical surface or a tapered surface so that the screwing operation with the screw hole 9 of the cone member 2 can be smoothly performed.
【００２２】前記ボルト６における後端の頭部１７に
は、フォームタイ５の外径と等しい円軸部２２が設けら
れ、この円軸部２２の外周面にフォームタイ５の雄ねじ
１３と等しい外径及びピッチの雄ねじ２３が形成され、
回り止用のナット２１は両雄ねじ１３と２３にわたって
螺合することにより、フォームタイ５に対してボルト６
を回り止状に固定化できるようになっている。The head portion 17 at the rear end of the bolt 6 is provided with a circular shaft portion 22 having the same outer diameter as the foam tie 5, and the outer peripheral surface of the circular shaft portion 22 has the same outer diameter as the male screw 13 of the foam tie 5. A male screw 23 having a diameter and a pitch is formed,
The non-rotating nut 21 is screwed over both male threads 13 and 23 to fix the bolt 6 to the foam tie 5.
Can be fixed in a non-rotating manner.
【００２３】前記締付金具７は、図３と図５に示すよう
に、型枠３の背面で縦添材１４と交差するようフォーム
タイ５の上下に配置した横端太材１８、１８に外接する
と共に、フォームタイ５に挿入する中央孔を備えた構造
になっており、フォームタイ５の雄ねじ１３に螺合した
ナット８のねじ込みによって横端太材１８、１８を押圧
し、フランジ部１２とで型枠３及び横端太材１８を挾
み、両者を結合ユニット化している。As shown in FIG. 3 and FIG. 5, the tightening metal member 7 is attached to the lateral end thick members 18, 18 arranged above and below the form tie 5 so as to intersect with the vertical supporting member 14 on the back surface of the formwork 3. It is circumscribed and has a central hole that is inserted into the form tie 5. The lateral end thick members 18, 18 are pressed by the nut 8 screwed into the male screw 13 of the form tie 5, and the flange 12 And form the mold 3 and the lateral end thick material 18 so as to sandwich them to form a combined unit.
【００２４】この発明の締結装置は上記のような構成で
あり、次にコンクリート型枠の締結方法を説明する。The fastening device of the present invention has the above-mentioned structure. Next, a method for fastening the concrete formwork will be described.
【００２５】両側に対向配置する型枠３には予め等しい
複数個所の位置にフォームタイ５を挿入できる径の孔４
を穿設しておき、背面の縦添材１８にもこの孔１４と同
軸心の孔を設けておき、図５のように、型枠３の孔４に
内面側からフォームタイ５を貫通状に挿入し、フランジ
部１２で外面側への抜止状とし、この型枠３の外面側で
フォームタイ５の上下に横端太材１８、１８を沿わせ、
次にフォームタイ５に中央部を外嵌挿した締付金具７を
上下の横端太材１８、１８に外接し、フォームタイ５の
雄ねじ１３に螺合したナット８をねじ込み、フランジ部
１２と締付金具７で型枠３と横端太材１８、１８を締付
ける。Holes 4 having a diameter such that foam ties 5 can be inserted in a plurality of equal positions in advance in the mold 3 arranged opposite to each other on both sides.
5, the vertical attachment 18 on the back side is also provided with a hole coaxial with the hole 14, and as shown in FIG. 5, the foam tie 5 penetrates the hole 4 of the mold 3 from the inner surface side. The outer side of the frame 3 along the upper and lower sides of the form tie 5 on the outer side of the form 3,
Next, the tightening metal fitting 7 having the central portion externally fitted and inserted into the foam tie 5 is circumscribed to the upper and lower lateral thick members 18, 18, and the nut 8 screwed into the male screw 13 of the foam tie 5 is screwed in to form the flange portion 12 and The mold 3 and the lateral thick members 18, 18 are clamped with the clamp 7.
【００２６】上記のように、フォームタイ５の雄ねじ１
３に螺合したナット８の締付けにより、型枠３とその外
面に沿わせた横端太材１８、１８が一体化することにな
る。As described above, the male screw 1 of the foam tie 5 is
By tightening the nut 8 screwed to the screw 3, the mold 3 and the lateral end thick members 18, 18 along the outer surface thereof are integrated.
【００２７】次に、一方の型枠３における内面側で各孔
４と対応する位置に、両端にコーン部材２、２を螺合し
たセパレータ１を臨ませ、一方のコーン部材２をフォー
ムタイ５内に後端側から挿入したボルト６の先端雄ねじ
１６に螺合する。Next, at the position corresponding to each hole 4 on the inner surface side of one of the molds 3, the separator 1 having the cone members 2 and 2 screwed at both ends is exposed, and the one cone member 2 is fixed to the foam tie 5. It is screwed into the male screw 16 at the tip of the bolt 6 inserted from the rear end side.
【００２８】このとき、フォームタイ５内に挿入したボ
ルト６は、フォームタイ５の後端に頭部１７を押当て、
フォームタイ５の雄ねじ１３とこの頭部１７の雄ねじ２
３にわたって回り止用のナット２１を螺合し、フォーム
タイ５に対してボルト６を回り止状態にしておく。At this time, the bolt 6 inserted into the foam tie 5 presses the head 17 against the rear end of the foam tie 5,
Male thread 13 of form tie 5 and male thread 2 of this head 17
A nut 21 for preventing rotation is screwed over 3 and the bolt 6 is kept in a non-rotation state with respect to the foam tie 5.
【００２９】これによって、ボルト６の先端雄ねじ１６
に対するコーン部材２の螺合時にボルト６が共回りする
ことがなく、従って型枠３の一面側から作業員一人でフ
ォームタイ５に対するセパレータ１の連結作業が行なえ
る。As a result, the male thread 16 at the tip of the bolt 6 is
The bolt 6 does not rotate together when the cone member 2 is screwed onto the mold 1, so that one operator can connect the separator 1 to the foam tie 5 from one side of the mold 3.
【００３０】コーン部材２を型枠３に圧着するまでボル
ト６にねじ込めば、一方型枠３の内面側にセパレータ１
がフォームタイ５の延長状に固定化された状態になる。When the cone member 2 is screwed into the bolt 6 until it is crimped onto the mold 3, the separator 1 is attached to the inner surface of the mold 3 on the one hand.
Becomes fixed in the form of extension of the foam tie 5.
【００３１】従って、両側の型枠３、３には、外面側に
横端太材１８、１８が固定化され、一方型枠３の内面側
にセパレータ１が固定された状態になる。Accordingly, the lateral end thick members 18, 18 are fixed to the outer surfaces of the molds 3 and 3 on both sides, and the separator 1 is fixed to the inner surface of the one mold 3.
【００３２】次に、両型枠３と３を両側に対向起立させ
ると図４のように、一方型枠３の内面側に固定したセパ
レータ１の他方コーン部材２に対して他方型枠３はフォ
ームタイ５におけるフランジ部１２が臨むことになる。Next, when both molds 3 and 3 are erected upright on both sides, as shown in FIG. 4, the other mold 3 is separated from the other cone member 2 of the separator 1 fixed to the inner surface of the one mold 3. The flange portion 12 of the foam tie 5 faces.
【００３３】この状態で他方型枠３のフォームタイ５に
ボルト６を挿入し、ボルト６の先端雄ねじ１６をコーン
部材２のねじ孔９に螺合して締付ければ、セパレータ１
を介して両型枠３と３は一定の間隔を保って結合固定化
され、コンクリート打設が可能な締結状態になる。この
とき、回り止用のナット２１はフォームタイ５の雄ねじ
１３にねじ込んでおき、ボルト６の回動に支障がないよ
うにしておく。In this state, the bolt 6 is inserted into the foam tie 5 of the other mold 3, and the male screw 16 at the tip of the bolt 6 is screwed into the screw hole 9 of the cone member 2 to be tightened.
The two molds 3 and 3 are fixedly connected and fixed to each other with a constant space therebetween, so that concrete can be poured. At this time, the detent nut 21 is screwed into the male screw 13 of the foam tie 5 so that the rotation of the bolt 6 is not hindered.
【００３４】図４に示した型枠３と３の締結時におい
て、型枠３、３を対向起立させたとき、コーン部材２に
は凹入テーパ面１０が設けられていると共に、フォーム
タイ５のフランジ部１２にはテーパ面が形成されている
ため、両者のテーパ面の当接と嵌り合いによってコーン
部材２とフォームタイ５は自動的に心合せが行なえ、コ
ーン部材２のねじ孔９とボルト６の螺合連結作業が型枠
３の外側から支障なく円滑に行なえる。When the molds 3 and 3 shown in FIG. 4 are fastened, when the molds 3 and 3 are erected to face each other, the cone member 2 is provided with the concave tapered surface 10 and the foam tie 5 is formed. Since the flange portion 12 has a tapered surface, the cone member 2 and the foam tie 5 can be automatically aligned with each other by the contact and fitting of the tapered surfaces, and the screw hole 9 of the cone member 2 The bolt 6 can be screwed and connected smoothly from the outside of the frame 3 without any trouble.
【００３５】また、型枠３、３の解体時は、回り止用の
ナット２１をフォームタイ５の雄ねじ１３に螺合させた
状態でボルト６を回動させてコーン部材２との螺合を解
けばよく、両型枠３、３は横端太材１８、１８を一体化
した状態のままでコンクリート面から剥離させることが
でき、そのままで次のコンクリート成形に転用できる。When the molds 3 and 3 are dismantled, the bolt 6 is rotated by screwing the nut 21 for rotation prevention into the male screw 13 of the form tie 5 to screw it into the cone member 2. It suffices to unravel, and both molds 3 and 3 can be separated from the concrete surface with the lateral end thick materials 18 and 18 being integrated, and can be diverted to the next concrete molding as it is.
【００３６】次に図６は、フォームタイ５の後端とボル
ト６の後端を結合する構造の他の例を示し、ボルト６の
後端に設けた頭部１７の前端にフォームタイ５の後端雄
ねじ１３に外嵌螺合する螺筒３１を設けた構造になって
いる。Next, FIG. 6 shows another example of a structure in which the rear end of the foam tie 5 and the rear end of the bolt 6 are connected to each other. A structure is provided in which a screw cylinder 31 that is externally fitted and screwed into the rear end male screw 13 is provided.
【００３７】この場合、ボルト６の先端に設けた雄ねじ
１６とフォームタイ５の雄ねじ１３は等しいピッチとな
り、ボルト６の回動によるコーン部材２の螺合時には、
螺筒３１はフォームタイ５に対して支障なく螺合するこ
とになる。In this case, the male screw 16 provided at the tip of the bolt 6 and the male screw 13 of the foam tie 5 have the same pitch, and when the cone member 2 is screwed by the rotation of the bolt 6,
The screw cylinder 31 can be screwed into the foam tie 5 without any trouble.
【００３８】また、ボルト６に対してコーン部材２を取
付けるときは、フォームタイ５に螺筒３１を螺合し、フ
ォームタイ５に対してボルト６を回り止状としておけば
よい。When the cone member 2 is attached to the bolt 6, the form tie 5 may be screwed with the screw cylinder 31 so that the bolt 6 is prevented from rotating with respect to the form tie 5.
【００３９】[0039]
【効果】以上のように、第１の発明によると、フォーム
タイの後端部外周に雄ねじを設け、このフォームタイに
挿入するボルトの後端に回動操作用の頭部を設け、この
頭部に上記雄ねじと等しいピッチの雄ねじを形成し、上
記両雄ねじにわたって回り止用のナットを螺合するよう
にしたので、型枠に固定したフォームタイに対してボル
トを回り止状に固定化することができ、ボルトにセパレ
ータを螺合連結するとき、ボルトを作業員が回り止保持
する必要はなく、従って、型枠へのセパレータ取付けが
１人の作業員で行なえ、型枠組立ての省力化と能率向上
が図れ、作業コストの削減が可能になる。As described above, according to the first invention, a male screw is provided on the outer periphery of the rear end of the form tie, and a head for rotation operation is provided at the rear end of the bolt to be inserted into the form tie. Since a male screw having the same pitch as that of the male screw is formed in the portion and a nut for preventing rotation is screwed over both male screws, the bolt is fixed to the form tie fixed to the formwork in a non-rotating manner. When connecting the separator to the bolt by screwing, it is not necessary for an operator to hold the bolt in a rotation stop, and therefore the separator can be attached to the formwork by one person, which saves labor for assembling the formwork. Therefore, efficiency can be improved and work cost can be reduced.
【００４０】また、第２の発明によると、フォームタイ
の後端部外周に雄ねじを設け、このフォームタイに挿入
するボルトの後端に回動操作用の頭部を設け、この頭部
に上記雄ねじに螺合する螺筒を設けたので、型枠に固定
したフォームタイに対してボルトを回り止状に固定化す
ることができ、ボルトにセパレータを螺合連結すると
き、ボルトを作業員が回り止保持する必要はなく、従っ
て、型枠へのセパレータ取付けが１人の作業員で行な
え、型枠組立ての省力化と能率向上が図れ、作業コスト
の削減が可能になる。According to the second aspect of the invention, a male screw is provided on the outer periphery of the rear end of the foam tie, and a head for turning operation is provided at the rear end of the bolt to be inserted into the foam tie. Since the screw cylinder that is screwed into the male screw is provided, the bolt can be fixed in a non-rotating manner to the form tie fixed to the form, and when the separator is screwed and connected to the bolt, the worker can fix the bolt. Therefore, it is not necessary to hold the rotation stopper, and therefore, only one worker can attach the separator to the mold, labor saving and efficiency improvement of the mold assembly can be achieved, and the work cost can be reduced.
【図１】この発明の締結装置を示す分解斜視図FIG. 1 is an exploded perspective view showing a fastening device of the present invention.
【図２】コーン部材の背面図FIG. 2 is a rear view of the cone member.
【図３】締結装置を用いて組立てた型枠の背面図FIG. 3 is a rear view of the formwork assembled using the fastening device.
【図４】同上の縦断側面図FIG. 4 is a vertical side view of the above.
【図５】同上の要部を拡大した縦断側面図FIG. 5 is a vertical sectional side view showing an enlarged main part of the above.
【図６】フォームタイに対するボルト回り止の他の構造
を示す断面図FIG. 6 is a cross-sectional view showing another structure of a bolt detent for a foam tie.
１ セパレータ ２ コーン部材 ３ 型枠 ４ 孔 ５ フォームタイ ６ ボルト ８ ナット ９ ねじ孔 １０ 凹入テーパ面 １３ 雄ねじ １７ 頭部 ２１ 回り止ナット ２３ 雄ねじ ３１ 螺筒 1 Separator 2 Cone Member 3 Form 4 Hole 5 Form Tie 6 Bolt 8 Nut 9 Screw Hole 10 Recessed Tapered Surface 13 Male Thread 17 Head 21 Rotation Nut 23 Male Thread 31 Threaded Tube
Claims (2)
と、先端部に抜止用のフランジ部を有し、後端側外周面
に締付けナットを螺合するための雄ねじが形成され、型
枠に対して成形面側から貫通状に取付ける筒状のフォー
ムタイと、前記フォームタイ内に挿入する軸部の後端に
フォームタイの後端部に当接する頭部を設け、先端にコ
ーン部材と螺合連結する雄ねじを設けたボルトとからな
り、前記ボルトの後端頭部にフォームタイの雄ねじと等
しいピッチの雄ねじを設け、両雄ねじの部分に回り止用
のナットを螺合したコンクリート型枠の締結装置。1. A cone member to be attached to an end of a separator and a retaining flange at a front end thereof, and a male screw for screwing a tightening nut is formed on an outer peripheral surface of a rear end of the separator. A cylindrical form tie that is attached in a penetrating manner from the molding surface side, a head that abuts the rear end of the form tie at the rear end of the shaft that is inserted into the form tie, and screw it with the cone member at the tip. A bolt with an external thread to connect with it, a male thread having the same pitch as the external thread of the form tie is provided on the rear end head of the bolt, and a fastening of a concrete formwork in which a nut for rotation prevention is screwed into both male thread parts apparatus.
と、先端部に抜止用のフランジ部を有し、後端側外周面
に締付けナットを螺合するための雄ねじが形成され、型
枠に対して成形面側から貫通状に取付ける筒状のフォー
ムタイと、前記フォームタイ内に挿入する軸部の後端に
フォームタイの後端部に当接する頭部を設け、先端にコ
ーン部材と螺合連結する雄ねじを設けたボルトとからな
り、前記ボルトの後端頭部にフォームタイの雄ねじに外
嵌螺合する螺筒を設けたコンクリート型枠の締結装置。2. A cone member to be attached to the end of the separator and a retaining flange at the tip, and a male screw for screwing a tightening nut to the outer peripheral surface of the rear end is formed, A cylindrical form tie that is attached in a penetrating manner from the molding surface side, a head that abuts the rear end of the form tie at the rear end of the shaft that is inserted into the form tie, and screw it with the cone member at the tip. A fastening device for a concrete formwork, comprising: a bolt provided with a connecting male screw, and a screw cylinder externally fitted to a male screw of a form tie provided on a rear end head portion of the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20354392A JPH07103690B2 (en) | 1992-07-30 | 1992-07-30 | Fastening device for concrete formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20354392A JPH07103690B2 (en) | 1992-07-30 | 1992-07-30 | Fastening device for concrete formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0649991A true JPH0649991A (en) | 1994-02-22 |
| JPH07103690B2 JPH07103690B2 (en) | 1995-11-08 |
Family
ID=16475887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20354392A Expired - Lifetime JPH07103690B2 (en) | 1992-07-30 | 1992-07-30 | Fastening device for concrete formwork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07103690B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100469031B1 (en) * | 2001-03-15 | 2005-02-02 | 주식회사 종합건축사이건 | Connecting salt attached washer for installing flash board |
-
1992
- 1992-07-30 JP JP20354392A patent/JPH07103690B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100469031B1 (en) * | 2001-03-15 | 2005-02-02 | 주식회사 종합건축사이건 | Connecting salt attached washer for installing flash board |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07103690B2 (en) | 1995-11-08 |
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