JPH06297444A - Tension force introducing coupler of axial reinforcing material of concrete pile - Google Patents
Tension force introducing coupler of axial reinforcing material of concrete pileInfo
- Publication number
- JPH06297444A JPH06297444A JP10982893A JP10982893A JPH06297444A JP H06297444 A JPH06297444 A JP H06297444A JP 10982893 A JP10982893 A JP 10982893A JP 10982893 A JP10982893 A JP 10982893A JP H06297444 A JPH06297444 A JP H06297444A
- Authority
- JP
- Japan
- Prior art keywords
- coupler
- tension
- tip
- diameter
- connecting hole
- 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
- Piles And Underground Anchors (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、コンクリート杭の成形
に際して型枠内の軸筋材に緊張力を与えるための緊張力
導入機構に設けられるカプラー、より詳細には、型枠の
端板外に突出する緊張バーを、軸筋材緊張力導入機構の
緊張ロッド先端に螺着連結するためのカプラーの改良に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupler provided in a tensioning force introducing mechanism for imparting a tensioning force to an axial reinforcing member in a form at the time of forming a concrete pile. The present invention relates to an improvement of a coupler for screwing and connecting a tension bar protruding inwardly to the tip of a tension rod of a shaft muscle tension introducing mechanism.
【０００２】[0002]
【従来の技術】コンクリート杭の成形に際しては、型枠
内に配列させた軸筋材に所定の緊張力を与えた状態でコ
ンクリートを打設する。この場合軸筋材の緊張は、該軸
筋材の一端を連結した緊張板から緊張バーを型枠の端板
外に突出させて、この緊張バーを外部に配置した緊張力
導入機構の緊張ジャッキにより引っ張り、軸筋材に所定
の緊張力が与えられたのち、前記の緊張バーに螺着した
ナットを型枠の端板に締め付けることにで、緊張力を型
枠に受け持たせる。2. Description of the Related Art When forming a concrete pile, concrete is placed in a state in which a predetermined tension is applied to a shaft reinforcing member arranged in a form. In this case, the tension of the axial reinforcement member is obtained by causing the tension bar to project outside the end plate of the form from the tension plate connected to one end of the axial reinforcement member, and the tension jack of the tension force introducing mechanism in which the tension bar is arranged outside. The tension is given to the mold by pulling and applying a predetermined tension to the axial reinforcing member, and then tightening the nut screwed to the tension bar to the end plate of the mold.
【０００３】[0003]
【発明が解決すべき課題】従来において、前記軸筋材に
対する緊張力の導入に際して、型枠側から突出する緊張
バーの先端を、緊張力導入機構側から突出する緊張ロッ
ドの先端に連結する場合には、予め緊張ロッドの先端
に、型枠側から突出する緊張バーの先端外径に適合する
内径のカプラーを装着しておき、このカプラーを介して
緊張バーの先端を緊張ロッドの先端に連結させる。In the prior art, when the tension force is introduced to the axial reinforcing member, the tip of the tension bar protruding from the mold side is connected to the tip of the tension rod protruding from the tension force introducing mechanism side. In advance, attach a coupler with an inner diameter that matches the outer diameter of the tip of the tension bar protruding from the mold side to the tip of the tension rod in advance, and connect the tip of the tension bar to the tip of the tension rod via this coupler. Let
【０００４】しかしながら、コンクリート杭の成形作業
は、使用される型枠の大きさとか、導入する緊張力の大
きさ等によって型枠側から突出する緊張バーの外径太さ
が相違するため、作業の過程で規格の異なる型枠が使用
される度毎に、作業員が緊張ロッドの先端のカプラー
を、使用される型枠の緊張バーの外径に適合したものに
交換しなければならず、このカプラーは軽いもので約５
０ｋｇ、重いもので約１００ｋｇ程度の重量があるため
に、交換の都度作業員にかなりの負担がかかるという問
題があった。However, in the work of forming a concrete pile, the outer diameter and thickness of the tension bar protruding from the form side differ depending on the size of the form used and the amount of tension to be introduced. Each time a form with a different standard is used in the process of, the worker must replace the coupler at the tip of the tension rod with one that fits the outer diameter of the tension bar of the form used, This coupler is light and about 5
Since the weight of 0 kg and the heavy one is about 100 kg, there is a problem in that the worker is considerably burdened with each replacement.
【０００５】[0005]
【課題を解決するための手段】本発明は、従来における
上記のような軸筋材に対する緊張力導入機構の問題点を
解消するために、緊張力導入機構から突出する緊張ロッ
ドの先端に、太さの異なる緊張バーを連結することので
きるカプラーを設けて、作業の過程で規格の異なる型枠
が使用されても、緊張ロッドのカプラーを交換する必要
なく成形作業が続けられるような緊張力導入用カプラー
の提供を目的としたものである。According to the present invention, in order to solve the problems of the conventional tensioning force introducing mechanism for the axial reinforcing member, the tip of the tensioning rod protruding from the tensioning force introducing mechanism is provided with a thick rod. Introducing a tensioning force so that a tensioning bar can be connected to connect different tensioning bars so that the molding work can be continued without the need to replace the tensioning rod coupler even if molds of different standards are used in the process of operation. The purpose is to provide a coupler for use.
【０００６】本発明は、上記の目的を達成するための具
体的な手段として、コンクリート杭の成形に使用される
軸筋材緊張力導入機構の緊張ロッド先端に設けられる外
部カプラーと内部カプラーとからなり、前記外部カプラ
ーは先端部に径の大きい緊張バーと螺着される大径連結
孔と、この連結孔の内奥部に該連結孔よりも大きい内径
のキー溝をもった摺動室とを有し、前記内部カプラーは
前記外部カプラーの大径連結孔内に挿通される外径で、
先端部に径の小さい緊張バーと螺着される小径連結孔を
開設した筒部と、この筒部の後端に前記外部カプラーの
摺動室内に嵌合する外径の、前記キー溝と係合するキー
をもったフランジとを備え、前記外部カプラーの摺動室
内には内部カプラーの押圧バネが配置されていることを
特徴とする。As a concrete means for achieving the above object, the present invention comprises an external coupler and an internal coupler provided at the tip of the tension rod of the axial tension member tension force introducing mechanism used for forming concrete piles. The external coupler has a large-diameter connecting hole screwed to a tension bar having a large diameter at its tip, and a sliding chamber having a key groove with an inner diameter larger than the connecting hole at the inner depth of the connecting hole. And the inner coupler has an outer diameter that is inserted into the large-diameter connecting hole of the outer coupler,
A cylindrical portion having a small diameter connecting hole to be screwed into a tension bar having a small diameter is formed at a front end portion, and a key groove having an outer diameter to be fitted in a sliding chamber of the external coupler at a rear end of the cylindrical portion. A flange having a matching key, and a pressing spring of the inner coupler is arranged in the sliding chamber of the outer coupler.
【０００７】[0007]
【作用】この発明に係る緊張力導入用カプラーでは、外
部カプラーの先端部における大径連結孔内に、先端に小
径連結孔を開設した筒部を持つ内部カプラーが、バネで
押されるように装着されているので、使用される型枠が
緊張バーの細いものである場合には、この緊張バーの先
端を、前記内部カプラーの筒部に開設された小径連結孔
内に螺着して連結し、また、使用される型枠が緊張バー
の太いものである場合には、その緊張バーの先端で、内
部カプラーの筒部をバネの力に抗して外部カプラーの摺
動室内に押し込むようにして、該緊張バーの先端を外部
カプラーの大径連結孔内に螺着連結することができる。In the coupler for introducing tension force according to the present invention, the inner coupler having the cylindrical portion having the small diameter connecting hole at the tip is mounted in the large diameter connecting hole at the tip of the outer coupler so as to be pushed by the spring. Therefore, if the formwork used is a thin tension bar, connect the tip of this tension bar by screwing it into the small diameter connecting hole formed in the tubular part of the internal coupler. If the formwork used is a thick tension bar, make sure that the tip of the tension bar pushes the tubular part of the inner coupler into the sliding chamber of the outer coupler against the force of the spring. Thus, the tip of the tension bar can be screwed and connected into the large-diameter connecting hole of the external coupler.
【０００８】[0008]
【実施例】次に、本発明に係る緊張力導入用カプラーの
構造を、図面に示した実施例について説明すると、図１
に示すように、このカプラーは、同図右側方向に位置さ
せた図示外の緊張力導入機構側から突出する緊張ロッド
１の先端に、ソケット２を介して装着される外部カプラ
ー３と、この外部カプラー３内に設けられる内部カプラ
ー４とから構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the tension introducing coupler according to the present invention will be described below with reference to the embodiments shown in the drawings.
As shown in FIG. 3, this coupler is composed of an external coupler 3 mounted through a socket 2 at the tip of a tension rod 1 protruding from the tension force introducing mechanism side (not shown) located in the right direction of FIG. It is composed of an internal coupler 4 provided in the coupler 3.
【０００９】外部カプラー３は、ソケット２の先端開口
部５内に螺子６により螺着固定される筒状体からなり、
先端部に、図５に示すような径の大きい緊張バー２０ｂ
と螺着されるような内径の雌螺子８をもった大径連結孔
７が開設され、更に、この連結孔７の内奥部には該連結
孔７よりも内径の大きい摺動室９が設けられていて、該
摺動室９には長さ方向に沿ったキー溝１０が設けられて
いる。The outer coupler 3 is a cylindrical body which is screwed and fixed by a screw 6 in the front end opening portion 5 of the socket 2.
At the tip, a tension bar 20b having a large diameter as shown in FIG.
A large-diameter connecting hole 7 having a female screw 8 with an inner diameter that can be screwed into is formed, and a sliding chamber 9 having an inner diameter larger than that of the connecting hole 7 is formed in the inner part of the connecting hole 7. The sliding chamber 9 is provided with a key groove 10 along its length.
【００１０】一方、前記の外部カプラー３内に設けられ
る内部カプラー４は、前記外部カプラー３の大径連結孔
７内に回転自在に挿通される外径で、先端部に、図３に
示すような径の小さい緊張バー２０ａと螺着されるよう
な内径の雌螺子１３をもった小径連結孔１２が開設され
た筒部１１と、この筒部１１の後端に前記外部カプラー
３の摺動室９内に嵌合する外径のフランジ１４とを備
え、このフランジ１４の外周面には、前記外部カプラー
３の摺動室９に設けられたキー溝１０と係合するキー１
５が設けられている。On the other hand, the inner coupler 4 provided in the outer coupler 3 has an outer diameter which is rotatably inserted into the large-diameter connecting hole 7 of the outer coupler 3 and has a distal end portion as shown in FIG. A tubular portion 11 having a small diameter connecting hole 12 having an internal thread 13 having an inner diameter for screwing with a tension bar 20a having a small diameter, and sliding of the external coupler 3 at the rear end of the tubular portion 11. A flange 14 having an outer diameter that fits in the chamber 9; and a key 1 that engages with a key groove 10 provided in the sliding chamber 9 of the external coupler 3 on the outer peripheral surface of the flange 14.
5 are provided.
【００１１】また、前記外部カプラー３の摺動室９内に
は、バネ１６が配置されていて、前方の大径連結孔７内
に回転自在に挿通される内部カプラー４の後部フランジ
１４が、このバネ１６によって押されることにより、内
部カプラー４が常に外部カプラー３の先端部方向に押圧
配置されるように構成されている。A spring 16 is arranged in the sliding chamber 9 of the outer coupler 3, and a rear flange 14 of the inner coupler 4 which is rotatably inserted into the large-diameter connecting hole 7 in the front, By being pushed by the spring 16, the inner coupler 4 is always arranged to be pushed toward the tip of the outer coupler 3.
【００１２】なお、前記外部カプラー３を緊張ロッド１
に接続するためのソケット２は、緊張ロッド１と螺子１
７により螺着されるが、緊張ロッド１に対してピン１８
が挿通されていて、緊張ロッド１が緊張力導入機構側か
ら逆回転されてもソケット２が緊張ロッド１から外れな
いようになっている。The external coupler 3 is attached to the tension rod 1
The socket 2 for connecting to is a tension rod 1 and a screw 1
7 is screwed, but the pin 18 is attached to the tension rod 1.
Even if the tension rod 1 is inserted, and the tension rod 1 is reversely rotated from the tension force introducing mechanism side, the socket 2 is prevented from coming off the tension rod 1.
【００１３】図３に示すように、同図左側に配置された
型枠１９ａの一端から突出する緊張バー２０ａが径の細
いものである場合には、この緊張バー２０ａの先端を、
前記内部カプラー４の筒部１１に開設された小径連結孔
１２内に挿入するように当接して緊張ロッド１を回転し
ながら前記緊張バー２０ａの方向へ移動すると、この内
部カプラー４は、後方のフランジ１４の外周面のキー１
５が前記外部カプラー３の摺動室９のキー溝１０と係合
しているので、外部カプラー３と一体に回転して、図４
のように、緊張バー２０ａの先端部が内部カプラー４の
小径連結孔１２内に螺合装着される。As shown in FIG. 3, when the tension bar 20a protruding from one end of the mold frame 19a arranged on the left side of the figure has a thin diameter, the tip of the tension bar 20a is
When the tension rod 1 is rotated and moved in the direction of the tension bar 20a while being inserted so as to be inserted into the small-diameter connecting hole 12 formed in the tubular portion 11 of the inner coupler 4, the inner coupler 4 moves backward. Key 1 on outer peripheral surface of flange 14
Since 5 is engaged with the key groove 10 of the sliding chamber 9 of the external coupler 3, the external coupler 5 rotates integrally with the external coupler 3 as shown in FIG.
As described above, the tip portion of the tension bar 20 a is screwed into the small diameter connecting hole 12 of the inner coupler 4.
【００１４】一方、図５に示すように、同図左側に配置
された型枠１９ｂの一端から突出する緊張バー２０ｂが
径の太いものである場合には、この緊張バー２０ｂの先
端を前記内部カプラー４の筒部先端に当接して、緊張ロ
ッド１を回転しながら前記緊張バー２０ｂの方向へ移動
すると、図６のように、この内部カプラー４自体が、後
方のフランジ１４を押圧しているバネ１６の押圧力に抗
して、外部カプラー３の摺動室９内方向へ徐々に押し込
まれながら、緊張バー２０ｂの先端部が外部カプラー３
の大径連結孔７内に螺合装着される。On the other hand, as shown in FIG. 5, when the tension bar 20b protruding from one end of the form frame 19b arranged on the left side of the figure has a large diameter, the tip of the tension bar 20b is inserted into the inside. When contacting the tip of the tubular portion of the coupler 4 and moving the tension rod 1 toward the tension bar 20b while rotating the tension rod 1, the inner coupler 4 itself presses the rear flange 14 as shown in FIG. The tip portion of the tension bar 20b is pushed toward the inside of the sliding chamber 9 of the external coupler 3 against the pressing force of the spring 16, and the tip end portion of the tension bar 20b is moved to the external coupler 3.
It is screwed into the large diameter connecting hole 7.
【００１５】[0015]
【発明の効果】本発明の緊張力導入用カプラーは、上記
のように、緊張ロッドの先端に、径の太い緊張バーを接
続するための大径連結孔と、その内奥部に大きな空間か
らなる摺動室とをもった外部カプラー設けると共に、こ
の外部カプラー先端部の大径連結孔内に、先端に小径連
結孔を開設した筒部と、その後方にキーによって前記外
部カプラーの摺動室と係合するフランジとをもった内部
カプラーを挿着して、この内部カプラーを前記摺動室内
に配置したバネで押されるように構成したので、ので、
緊張バーの細い型枠が使用される場合には、内部カプラ
ーの小径連結孔を利用し、また、緊張バーの太い型枠が
使用される場合には、外部カプラーの大径連結孔を利用
して夫々連結することができる。As described above, the coupler for introducing a tension force of the present invention has a large-diameter connecting hole for connecting a large-diameter tension bar to the tip of the tension rod and a large space in the inner depth thereof. An external coupler having a sliding chamber is provided, and a cylindrical portion having a small-diameter connecting hole at the tip is provided in the large-diameter connecting hole at the tip of the external coupler, and a sliding chamber for the external coupler by a key behind it. Since an internal coupler having a flange that engages with is inserted and configured so that the internal coupler is pushed by a spring arranged in the sliding chamber,
If a thin form of the tension bar is used, use the small diameter connection hole of the inner coupler, and if a thick form of the tension bar is used, use the large diameter connection hole of the outer coupler. Can be connected to each other.
【００１６】そのため、コンクリート杭の成形過程で緊
張バーの径の異なる型枠が使用される都度、従来のよう
に、作業員がいちいち重量のあるカプラーを緊張ロッド
から取り外したり、緊張バーの外径に適合した別のカプ
ラーを緊張ロッドに付け替えるというカプラーの交換作
業を必要としないので、重いカプラーを保持することに
よる作業員の負担を大幅に軽減できると共に、作業を休
みなく連続的に継続することができ、作業能率の大幅な
向上を期待することができる。Therefore, each time a mold having different diameters of the tension bar is used in the process of forming a concrete pile, an operator detaches a heavy coupler from the tension rod or changes the outer diameter of the tension bar as in the conventional case. Since it does not require the coupler replacement work of replacing another coupler compatible with the one with the tension rod, the burden on the worker by holding a heavy coupler can be significantly reduced and the work can be continued continuously without a break. Therefore, it is possible to expect a significant improvement in work efficiency.
【図１】本発明に係る緊張力導入用カプラーの構成を示
す断面図。FIG. 1 is a cross-sectional view showing a configuration of a tension-introducing coupler according to the present invention.
【図２】図１のＡ−Ａ線における断面図。FIG. 2 is a sectional view taken along line AA of FIG.
【図３】このカプラーにより径の細い緊張バーを連結す
る場合の断面図。FIG. 3 is a cross-sectional view in the case of connecting tension bars having a small diameter with this coupler.
【図４】図３の緊張バーが連結された状態の断面図。FIG. 4 is a sectional view of the tension bar of FIG. 3 in a connected state.
【図５】このカプラーにより径の太い緊張バーを連結す
る場合の断面図。FIG. 5 is a cross-sectional view of connecting a tension bar having a large diameter with this coupler.
【図６】図５の緊張バーが連結された状態の断面図。6 is a cross-sectional view of the tension bar of FIG. 5 in a connected state.
１：緊張ロッド ２：ソケット ３：外部カプラー ４：内部カプラー ５：ソケット先端開口部 ６：螺子 ７：大径連結孔 ８：雌螺子 ９：摺動室 １０：キー溝 １１：筒部 １２：小径連結孔 １３：雌螺子 １４：フランジ １５：キー １６：バネ １７：螺子 １８：ピン １９ａ，１９ｂ：型枠 ２０ａ，２０ｂ：
緊張バー1: Tension rod 2: Socket 3: External coupler 4: Internal coupler 5: Socket tip opening 6: Screw 7: Large diameter connecting hole 8: Female screw 9: Sliding chamber 10: Key groove 11: Cylindrical portion 12: Small diameter Connection hole 13: Female screw 14: Flange 15: Key 16: Spring 17: Screw 18: Pin 19a, 19b: Formwork 20a, 20b:
Tension bar
Claims (2)
材緊張力導入機構の緊張ロッド先端に設けられる外部カ
プラーと内部カプラーとからなり、前記外部カプラーは
先端部に径の大きい緊張バーと螺着される大径連結孔
と、この連結孔の内奥部に該連結孔よりも大きい内径の
キー溝をもった摺動室とを有し、前記内部カプラーは前
記外部カプラーの大径連結孔内に挿通される外径で、先
端部に径の小さい緊張バーと螺着される小径連結孔を開
設した筒部と、この筒部の後端に前記外部カプラーの摺
動室内に嵌合する外径の、前記キー溝と係合するキーを
もったフランジとを備え、前記外部カプラーの摺動室内
には内部カプラーの押圧バネが配置されていることを特
徴とするコンクリート杭軸筋材の緊張力導入用カプラ
ー。1. An external coupler and an internal coupler provided at the tip of a tension rod of an axial reinforcement tension introducing mechanism used for forming a concrete pile, wherein the external coupler has a tension bar and a screw having a large diameter at its tip. And a sliding chamber having a key groove having an inner diameter larger than the inner diameter of the connecting hole, and the inner coupler is a large diameter connecting hole of the outer coupler. A cylindrical portion having an outer diameter inserted therein and a small diameter connecting hole screwed into the tension bar having a small diameter at the tip portion, and the rear end of the cylindrical portion is fitted into the sliding chamber of the external coupler. Outer diameter, a flange having a key to be engaged with the key groove, the pressure spring of the inner coupler is arranged in the sliding chamber of the outer coupler of the concrete pile shaft reinforcement Coupler for introducing tension.
トを介して連結されている請求項１に記載のコンクリー
ト杭軸筋材の緊張力導入用カプラー。2. The coupler for tensioning force of a concrete pile shaft reinforcement according to claim 1, wherein the external coupler is connected to the tip of the tensioning rod through a socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10982893A JP2632773B2 (en) | 1993-04-14 | 1993-04-14 | Coupler for introducing tension in concrete pile shaft reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10982893A JP2632773B2 (en) | 1993-04-14 | 1993-04-14 | Coupler for introducing tension in concrete pile shaft reinforcement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06297444A true JPH06297444A (en) | 1994-10-25 |
| JP2632773B2 JP2632773B2 (en) | 1997-07-23 |
Family
ID=14520245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10982893A Expired - Lifetime JP2632773B2 (en) | 1993-04-14 | 1993-04-14 | Coupler for introducing tension in concrete pile shaft reinforcement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2632773B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101133455B1 (en) * | 2010-12-22 | 2012-04-09 | 김준홍 | Rotatation driving socket for screw steel pile |
| CN104908159A (en) * | 2015-06-01 | 2015-09-16 | 江苏山海建设工程有限公司 | Operation equipment for industrial large-scale solid square pile production line |
| CN105082349A (en) * | 2015-08-20 | 2015-11-25 | 宁波雷时实业有限公司 | Positioning-pin-free III-type track board connector |
| CN109594558A (en) * | 2018-12-14 | 2019-04-09 | 福建鸿生高科环保科技有限公司 | A kind of reinforced concrete hollow tube pile connection device and connection method |
-
1993
- 1993-04-14 JP JP10982893A patent/JP2632773B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101133455B1 (en) * | 2010-12-22 | 2012-04-09 | 김준홍 | Rotatation driving socket for screw steel pile |
| CN104908159A (en) * | 2015-06-01 | 2015-09-16 | 江苏山海建设工程有限公司 | Operation equipment for industrial large-scale solid square pile production line |
| CN105082349A (en) * | 2015-08-20 | 2015-11-25 | 宁波雷时实业有限公司 | Positioning-pin-free III-type track board connector |
| CN105082349B (en) * | 2015-08-20 | 2018-08-31 | 宁波雷时实业有限公司 | Without III type track connector for substrate of positioning pin |
| CN109594558A (en) * | 2018-12-14 | 2019-04-09 | 福建鸿生高科环保科技有限公司 | A kind of reinforced concrete hollow tube pile connection device and connection method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2632773B2 (en) | 1997-07-23 |
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