JPH0372142A - Anchoring device for rod-shaped body - Google Patents
Anchoring device for rod-shaped bodyInfo
- Publication number
- JPH0372142A JPH0372142A JP20872289A JP20872289A JPH0372142A JP H0372142 A JPH0372142 A JP H0372142A JP 20872289 A JP20872289 A JP 20872289A JP 20872289 A JP20872289 A JP 20872289A JP H0372142 A JPH0372142 A JP H0372142A
- Authority
- JP
- Japan
- Prior art keywords
- rod
- cover nut
- wedge
- shaped body
- fixing device
- 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.)
- Pending
Links
- 238000004873 anchoring Methods 0.000 title abstract description 4
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 210000000078 claw Anatomy 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 58
- 239000010959 steel Substances 0.000 abstract description 58
- 238000010276 construction Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
この発明は、鉄筋、タイロッド等の棒状体を他の棒状体
や構造物等に定着する際の定着装置に係り、特に、迅速
かつ簡易な定着作業が可能な棒状体の定着装置に関する
ものである。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a fixing device for fixing rod-shaped bodies such as reinforcing bars and tie rods to other rod-shaped bodies or structures, and in particular, to The present invention relates to a rod-shaped fixing device that can perform fixing work.
「従来の技術」
鉄筋等の棒状体を建設・土木現場において突き合わせ接
合する手段は、カプラと呼ばれる接合具によって機械的
に接合する手段と、棒状体の接合部(いわゆる継手)で
棒状体同士を互いに圧接する冶金的手段とに大別される
。``Prior art'' There are two methods of butt-joining rod-shaped bodies such as reinforcing bars at construction and civil engineering sites: mechanically joining them using a joining tool called a coupler, and joining the rod-shaped bodies together at the joints (so-called joints). It is roughly divided into two types: metallurgical means that press them together.
「発明が解決しようとする課題」
しかし、前記従来の棒状体の接合手段は、そのいずれも
が次に掲げるような課題を抱えており、その解決が待た
れていた。``Problems to be Solved by the Invention'' However, all of the above-mentioned conventional means for joining rod-shaped bodies have the following problems, and solutions to these problems have been awaited.
すなわち、カプラを用いた機械的接合手段にあっては、
カプラの端部に雌ねじを刻設してこれにねじ節鉄筋を螺
合させたり、あるいは筒状のカプラに棒状体の端部を挿
入してこれをかしめたりする等してカプラと棒状体との
直定を図ることとなるが、この固定作業に際してそれ専
用の治具を必要とし、また、現場での固定作業が容易で
ないといった課題があった。In other words, in the mechanical joining means using couplers,
The coupler and the rod can be connected by carving a female thread into the end of the coupler and screwing a threaded reinforcing bar into it, or by inserting the end of the rod into a cylindrical coupler and caulking it. However, this fixing work required a special jig, and the fixing work on site was not easy.
一方、圧接による冶金的接合手段にあっても現場での固
定作業が容易でなく、しかも各接合部の圧縮・引張強度
を均一なものとするための溶接精度を確保することも困
難であるといった課題があつた。On the other hand, even with metallurgical joining methods using pressure welding, it is not easy to fix on-site, and it is also difficult to ensure welding accuracy to make the compressive and tensile strengths of each joint uniform. I have an assignment.
この発明は前記事情に鑑みてなされたもので、鉄筋等の
棒状体を他の棒状体や構造物に定着する作業を簡易にか
つ迅速に行え、しかも定着部の強度を十分に確保しうる
棒状体の定着装置の提供を目的としている。This invention was made in view of the above circumstances, and it is possible to easily and quickly fix a rod-shaped object such as a reinforcing bar to another rod-shaped object or a structure, and also to provide a rod-shaped object that can secure sufficient strength of the anchoring part. The purpose is to provide an anchoring device for the body.
「課題を解決するための手段」
そこでこの発明は、把持部から突設されて外周面に雄ね
じを刻設した突部を有する接合ユニットと、軸方向に延
在する貫通孔が形成されたカバーナツトとからなり、該
カバーナツトの貫通孔の一端部に雌ねじを刻設すること
でこのカバーナツトを前記接合ユニットの突部に螺合さ
せ、一方、カバーナツトの貫通孔の他端部にカバーナツ
ト他端開口部から奥に向って拡開するテーパ面を形成す
ると共に、このテーパ面に、その周方向に分割された楔
体をこのテーパ面に沿ってカバーナツトの軸方向及び周
方向に移動自在となるように複数個配設し、これら楔体
の内周面に棒状体の外周面に係合する形状の係合歯を形
成すると共に、これら楔体をテーパ面の小径部側jこ付
勢する付勢手段を配設したような棒状体の定着装置を構
成することで、前記課題を解決せんとしている。``Means for Solving the Problems'' Therefore, the present invention provides a joining unit having a protrusion protruding from a gripping part and having a male thread carved on its outer peripheral surface, and a cover nut having a through hole extending in the axial direction. A female thread is formed at one end of the through hole of the cover nut so that the cover nut is screwed into the protrusion of the joining unit, and an opening at the other end of the cover nut is formed at the other end of the through hole of the cover nut. A tapered surface is formed that widens inward from the cover nut, and a wedge body divided in the circumferential direction is formed on this tapered surface so that it can be freely moved in the axial direction and circumferential direction of the cover nut along this tapered surface. A plurality of wedge bodies are arranged, and engagement teeth shaped to engage with the outer circumferential surface of the rod-shaped body are formed on the inner circumferential surface of these wedge bodies, and an urging force that urges these wedge bodies toward the small diameter portion side of the tapered surface. The above-mentioned problem is attempted to be solved by configuring a rod-shaped fixing device that is provided with means.
ここで、前記接合ユニットの突部先端には棒状体の先端
部が収納される位置決め凹部を形成しておくことが好ま
しい。また、前記位置決め凹部の外周端部には、前記楔
体の大径部に向がって突出する楔体押圧部を設けておく
ことが好ましい。さらに、前記テーパ面の上には、前記
カバーナツトの軸方向に延在する案内爪をこのカバーナ
ツトの周方向に移動自在に配設しておくと共に、前記楔
体の側面がこの案内爪に常時当接するようにその形状を
形成することが好ましい。また、カバーナツトの他端開
口部に前記楔体のカバーナツト外方への突出を阻止する
ストッパを設けておくことも好ましい。Here, it is preferable that a positioning recess in which the tip of the rod-shaped body is accommodated is formed at the tip of the protrusion of the joining unit. Further, it is preferable that a wedge pressing portion protruding toward the large diameter portion of the wedge is provided at the outer peripheral end of the positioning recess. Further, a guide pawl extending in the axial direction of the cover nut is disposed on the tapered surface so as to be movable in the circumferential direction of the cover nut, and the side surface of the wedge body is always in contact with the guide pawl. It is preferable to form the shape so that they touch each other. It is also preferable that a stopper is provided at the other end opening of the cover nut to prevent the wedge from protruding outward from the cover nut.
「作用」
この発明では、接合すべき棒状体を定着装置のカバーナ
ツトの他端開口部からこのカバーナツト内に挿入すると
、棒状体の先端部が楔体の小径部先端の保合歯に係合し
、次いで、棒状体がカバーナツト内に押し込まれること
で、付勢手段の付勢力に抗して楔体がテーパ面の大径部
側に向って移動する。これにより、楔体の内周面の径が
棒状体の径より若干大きくなり、棒状体は楔体の係合歯
を越えてカバーナツト内へと進入する。"Operation" In this invention, when the rod-shaped body to be joined is inserted into the cover nut of the fixing device from the other end opening, the tip of the rod-shaped body engages with the retaining teeth at the tip of the small diameter portion of the wedge. Then, by pushing the rod-shaped body into the cover nut, the wedge body moves toward the large diameter portion of the tapered surface against the biasing force of the biasing means. As a result, the diameter of the inner circumferential surface of the wedge body becomes slightly larger than the diameter of the rod-shaped body, and the rod-shaped body passes over the engagement teeth of the wedge body and enters into the cover nut.
そして、棒状体をカバーナツト内に押し込んだ後、この
棒状体への押圧力を解除すると、付勢手段の付勢力によ
り各楔体がテーパ面の小径部側に押し戻され、棒状体の
外周面と楔体の係合歯とが互いに係合することで、この
棒状体が定着装置に連結される。After pushing the rod-like body into the cover nut, when the pressing force on the rod-like body is released, each wedge body is pushed back to the small diameter side of the tapered surface by the biasing force of the biasing means, and the wedge bodies are pressed against the outer circumferential surface of the rod-like body. This rod-shaped body is connected to the fixing device by the engagement teeth of the wedge bodies engaging with each other.
また、楔体がテーパ面に対して回動自在とされているた
め、楔体の保合歯が棒状体の外周面に係合した後でカバ
ーナツトや接合ユニットを回転させても、楔体が連れ回
りすることがない。In addition, since the wedge body is rotatable relative to the tapered surface, even if the cover nut or joining unit is rotated after the retaining teeth of the wedge engage with the outer peripheral surface of the rod-shaped body, the wedge body will not rotate. I don't have to take her around.
「実施例」
以下、この発明の実施例について図面を参照して説明す
る。"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第1図ないし第4図は、この発明の棒状体の定着装置を
鋼棒の突き合わせ接合に用いた第1実施例を示す図であ
る。1 to 4 are diagrams showing a first embodiment in which the rod-shaped body fixing device of the present invention is used for butt joining of steel rods.
これら図において、符号l全体で表されるものは鉄筋の
定着装置(以下、単に「定着装置」と称する)であり、
この定着装置lは、略六角柱状の把持部2と、この把持
部2の前後方にそれぞれ延出して、外周面に雄ねじ部3
が形成された略円柱状の突部4.4とからなる接合ユニ
ット5と、軸方向に延在する貫通孔6.6が形成され、
この貫通孔6.6の一端部の内周面に雌ねじ部6a16
aが形成されることで前記接合ユニット5の突部4.4
に螺合された略六角柱状のカバーナツト7.7とから概
略構成されている。In these figures, what is represented by the entire symbol l is a reinforcing bar fixing device (hereinafter simply referred to as "fixing device"),
This fixing device 1 includes a grip portion 2 having a substantially hexagonal column shape, and a male screw portion 3 extending in the front and rear directions of the grip portion 2, and a male screw portion 3 on the outer peripheral surface.
A joining unit 5 includes a substantially cylindrical protrusion 4.4 formed with a cylindrical projection 4.4, and a through hole 6.6 extending in the axial direction.
A female threaded portion 6a16 is provided on the inner peripheral surface of one end of this through hole 6.6.
By forming the protrusion 4.4 of the joining unit 5
The cover nut 7.7 has a substantially hexagonal column shape and is screwed into the cover nut 7.7.
カバーナツト7の貫通孔6の他端部には、このカバーナ
ツト7の他端開口部7aから奥に向って拡開する円錐台
形状のテーパ面8が形成されている。また、テーパ面8
上には、外周面がこのテーパ面8に沿って形成されると
共に、全体がカバーナツト7の貫通孔6の軸方向に延在
されることで、このカバーナツト7の貫通孔6の周方向
に摺動自在とされた案内爪9.9、・・・が配設されて
いると共に、これら案内爪9.9、・・・間には楔体1
0.101・・・が配設されている。The other end of the through hole 6 of the cover nut 7 is formed with a truncated conical tapered surface 8 that widens inward from the other end opening 7a of the cover nut 7. Also, the tapered surface 8
On the top, an outer circumferential surface is formed along this tapered surface 8 and the entire surface extends in the axial direction of the through hole 6 of the cover nut 7, so that it can be slid in the circumferential direction of the through hole 6 of the cover nut 7. Guide pawls 9.9, .
0.101... are arranged.
この楔体10は、軸方向に貫通孔が形成されだ円錐台形
体を周方向に3分割した形状に形成され、その外周面1
0aがテーパ面8に沿ったテーパ面に形成されることで
、前記案内爪9.9、・・・に案内される形でカバーナ
ツト7の貫通孔6の軸方向に摺動自在とされ、従って、
案内爪9、・・・も含めて楔体10、・・・全体として
カバーナツト7の貫通孔6の周方向に摺動自在とされて
いる。また、楔体10.・・・の内周面10bは、接合
すべき鋼棒の外周面と同等又は若干大きい曲率を持った
湾曲面に形成されている。This wedge body 10 is formed in the shape of a truncated conical body divided into three parts in the circumferential direction, and has a through hole formed in the axial direction.
0a is formed on a tapered surface along the tapered surface 8, so that it can freely slide in the axial direction of the through hole 6 of the cover nut 7 while being guided by the guide claws 9, 9, . . . ,
The entire wedge body 10, including the guide claws 9, is slidable in the circumferential direction of the through hole 6 of the cover nut 7. Also, cuneiform 10. The inner circumferential surface 10b of ... is formed into a curved surface having a curvature equal to or slightly larger than the outer circumferential surface of the steel rod to be welded.
具体的には、第3図ないし第4図に示すように、案内爪
9.9、・・・はテーパ面8の小径部側において略二等
辺三角形状の断面形状を有する山形に形成され、かつ、
その側面がテーパ面8を構成する円錐台の母線に沿って
形成されると共に、その傾斜が前記二等辺三角形の斜辺
の傾斜に等しく形成されている。一方、前記楔体10.
・・・の側面も前記案内爪9.9、・・・の側面に相接
する傾斜面に形成され、これにより、楔体10.・・・
がテーパ面8の小径部側に位置した状態でその内周面が
互いに当接されると共に、楔体lOl・・・がテーパ面
8の大径部側に摺動する場合でもその側面が常時案内爪
9、・・・の側面に相接するようにされている。Specifically, as shown in FIGS. 3 and 4, the guide claws 9.9, . and,
Its side surface is formed along the generatrix of the truncated cone constituting the tapered surface 8, and its inclination is equal to the inclination of the hypotenuse of the isosceles triangle. On the other hand, the wedge body 10.
The side surfaces of the guide claws 9.9, . . . are also formed as inclined surfaces adjacent to the side surfaces of the guide claws 9. ...
are located on the small diameter side of the tapered surface 8, and their inner circumferential surfaces are in contact with each other. The guide claws 9, . . . are arranged in contact with the side surfaces thereof.
また、楔体10の内周面10bには雌ねじ(保合歯)1
1が刻設されている。この雌ねじ11は、その山径が接
合すべき鋼棒の外径とほぼ同径又は若干小径とされるこ
とで、この鋼棒の外周面に食い込むことが可能となって
いる。なお、雌ねじ11の山の形状は、後述する鋼棒の
定着装置への挿入を容易とし、かつ鋼棒に作用する引張
力に対する抵抗を増すために、テーパ面8の小径部側に
向かう面の傾斜を急lこし、テーパ面8の大径部側に向
かう面の傾斜を緩くすることがよい。また、楔体lOの
軸方向の長さは、テーパ面8の軸方向の長さより短く形
成されている。Further, the inner circumferential surface 10b of the wedge body 10 has a female screw (retaining tooth) 1.
1 is engraved. The female screw 11 has a thread diameter that is approximately the same as or slightly smaller than the outer diameter of the steel rod to be joined, so that it can bite into the outer circumferential surface of the steel rod. Note that the shape of the threads of the female thread 11 is such that the shape of the ridges on the surface of the tapered surface 8 facing the small diameter portion is designed to facilitate the insertion of the steel rod into the fixing device, which will be described later, and to increase resistance to the tensile force acting on the steel rod. It is preferable to make the slope steeper and to make the slope of the surface of the tapered surface 8 toward the large diameter part gentler. Further, the axial length of the wedge lO is shorter than the axial length of the tapered surface 8.
さらに、符号12は楔体lOl・・・の大径部端面及び
前記接合ユニット5の突部4先端面間に介在され、これ
ら楔体10.・・・をテーパ面8の小径部側に付勢する
スプリング(付勢手段)であり、このスプリング12と
前記楔体10.・・・の大径部端面との間にはリング状
のワッシャー15が介在されている。また、前記カバー
ナツト7の他端開口部7aには、鉄筋の挿入を容易とす
るための先窄まりの傾斜部7b、及び、前記楔体10.
・・・のカバーナツト7外への離脱を防止するためのス
トッパーたる段部7cが連続して形成されている。Further, reference numeral 12 is interposed between the large diameter end faces of the wedge bodies lOl... and the tip faces of the projections 4 of the joining unit 5, and these wedge bodies 10. This spring 12 and the wedge body 10. A ring-shaped washer 15 is interposed between the end surfaces of the large diameter portions. Further, the other end opening 7a of the cover nut 7 includes a tapered inclined portion 7b for facilitating the insertion of reinforcing bars, and the wedge body 10.
A step 7c is continuously formed as a stopper to prevent the... from coming off the cover nut 7.
なお、この実施例では、接合ユニット5の突部4先端面
に、接合すべき鋼棒とほぼ同径又は若干大径の位置決め
凹部4aが形成されている。この位置決め凹部4aは、
接合ユニット5の把持部2を挟んで互いに対称な位置に
設けられており、これにより、鋼棒の接合時にこれら鋼
棒の先端が位置決め凹部4a内に嵌入されることで、芯
ずれすることなく鋼棒の接合ができ、しかもその位置決
めが容易かつ確実となる。In this embodiment, a positioning recess 4a having approximately the same diameter or a slightly larger diameter than the steel rod to be welded is formed on the tip end surface of the protrusion 4 of the welding unit 5. This positioning recess 4a is
They are provided at mutually symmetrical positions across the grip part 2 of the joining unit 5, so that when joining the steel bars, the tips of these steel bars are inserted into the positioning recess 4a, thereby preventing misalignment. Steel bars can be joined, and their positioning is easy and reliable.
また、この位置決め凹部4aの外周端部は、前記楔体l
Oに向かって突出する楔体押圧部4bとされている。こ
の楔体押圧部4bの先端面は外方に向かうに従って前方
に傾斜する傾斜面とされ、一方、前記楔体lOの大径部
端面ばこの楔体押圧部4bの端面に沿う斜面に形成され
ている。これにより、前記スプリング12は楔体押圧部
4bの側面とカバーナツト7の貫通孔6との間隙の間に
保持されることで、その脱落が防止される。Further, the outer peripheral end of the positioning recess 4a is connected to the wedge l
The wedge pressing portion 4b protrudes toward O. The distal end surface of the wedge pressing portion 4b is an inclined surface that slopes forward as it goes outward, while the large diameter end face of the wedge 1O is formed into an inclined surface along the end surface of the wedge pressing portion 4b. ing. Thereby, the spring 12 is held between the gap between the side surface of the wedge pressing portion 4b and the through hole 6 of the cover nut 7, thereby preventing the spring 12 from falling off.
次に、第5図ないし第8図を参照して、この発明の一実
施例である定着装置1を用いた鋼棒の接続作業について
説明する。Next, with reference to FIGS. 5 to 8, a steel rod connecting operation using the fixing device 1 which is an embodiment of the present invention will be described.
まず、第5図に示すように、接合すべき1対の鋼棒13
.14のうち一方の鋼棒13を定着装置l内に挿入する
。First, as shown in FIG. 5, a pair of steel rods 13 to be joined
.. One of the steel rods 13 of the steel rods 14 is inserted into the fixing device l.
第5図に示すように鋼棒13が挿入されていない状態で
は、゛各楔体10、・・・はスプリング12の付勢力に
よりテーバ面8の小径部側に付勢されていると共に、各
楔体lOl・・・の雌ねじ11、・・・で構成される雌
ねじ部は、その山径が鋼棒の外径と略同−又は若干小径
とされている。As shown in FIG. 5, when the steel rod 13 is not inserted, each wedge body 10, . The female screw portion of the wedge lOl, which is comprised of the female screws 11, . . . , has a thread diameter approximately equal to or slightly smaller than the outer diameter of the steel rod.
二の状態で、鋼棒13を定着装置lの一方のカバーナツ
ト7の他端開口部7aからこのカバーナツト7内に挿入
すると、この鋼棒13の先端部が楔体10.・・・の小
径部先端の雌ねじ11.・・・に係合し、次いで鋼棒1
3がカバーナツト7内に押し込まれることで、スプリン
グ12の付勢力に抗して、楔体lOl・・・が案内爪9
、・・・に案内されつつ、テーバ面8の大径部側に向っ
てカバーナツト7の軸方向に沿って摺動する。これによ
り、楔体10゜・・・の雌ねじ11.・・・で形成され
る雌ねじ部の山径が鋼棒13の外径より若干大きくなり
、鋼棒13は楔体10、・・・のねじ山を越えてカバー
ナツト7内へ進入する。When the steel rod 13 is inserted into the cover nut 7 from the other end opening 7a of one cover nut 7 of the fixing device l in the state shown in FIG. Female thread at the tip of the small diameter part 11. ... and then steel rod 1
3 is pushed into the cover nut 7, the wedge lOl... resists the biasing force of the spring 12, and the guide claw 9
, . . , it slides along the axial direction of the cover nut 7 toward the large-diameter side of the tapered surface 8. As a result, the female thread 11 of the wedge body 10°... The thread diameter of the female threaded portion formed by .
そして、鋼棒13の先端が接合ユニット5の位置決め凹
部4aの底面に当接するまでこの鋼棒13をカバーナツ
ト7内に押し込んだ後、この鋼棒13への押圧力を解除
すると、スプリング12の付勢力により各楔体10.・
・・がテーバ面8の小径部側に若干押し戻され、鋼棒1
3の外周面と楔体10、・・・の雌ねじ11、・・・と
が互いに係合することで、この鋼棒13が定着装置lに
連結される。Then, after pushing the steel rod 13 into the cover nut 7 until the tip of the steel rod 13 comes into contact with the bottom surface of the positioning recess 4a of the joining unit 5, when the pressing force on the steel rod 13 is released, the spring 12 is attached. Each wedge 10.・
... is pushed back slightly to the small diameter side of the Taper surface 8, and the steel rod 1
This steel rod 13 is connected to the fixing device 1 by the outer circumferential surface of 3 and the female threads 11 of the wedge bodies 10, . . . engaging with each other.
ここで、鋼棒13の先端面と突部4先端面との間に若干
の間隙が残った場合は、第6図に示すように接合ユニッ
ト5の把持部2を一方向に回転させることで、突部4先
端面を鋼棒13先端面に当接させる。この際、接合ユニ
ット5の楔体押圧部4bの先端面は楔体lOの大径部側
端面に当接された状態にあるので、把持部2の回転によ
り楔体10が確実に小径部側に付勢され、楔体10と鋼
棒13との係合が確実なものとなる。しかも、楔体押圧
部4bの先端面が傾斜面に形成されていることから、楔
体10はカバーナツト7内方に向かっても付勢され、鋼
棒13との係合がより確実なものとなる。Here, if a slight gap remains between the tip surface of the steel rod 13 and the tip surface of the protrusion 4, as shown in FIG. , the tip surface of the protrusion 4 is brought into contact with the tip surface of the steel rod 13. At this time, since the distal end surface of the wedge pressing portion 4b of the joining unit 5 is in contact with the end surface on the large diameter side of the wedge lO, the rotation of the gripping portion 2 ensures that the wedge 10 is moved toward the small diameter portion. , and the engagement between the wedge body 10 and the steel rod 13 is ensured. Furthermore, since the tip end surface of the wedge pressing portion 4b is formed into an inclined surface, the wedge 10 is also urged inwardly into the cover nut 7, making the engagement with the steel rod 13 more reliable. Become.
次に、第7図に示すように、残りの鋼棒14を同様に他
方のカバーナツト7内に挿入することにより、この鋼棒
14を定着装置lに連結する。ここで、鋼棒14の先端
面と突部4の先端面との間に若干の間隙が残った場合は
、前述の如く接合ユニット5の把持部2を回転させると
、既に連結された鋼棒13の先端面が突部4先端面から
離間するか、あるいは鋼棒13の先端面を無理な力で突
部4先端面に押圧することとなる。従って、第8図に示
すように前記他方のカバーナツト7を一方向に回転させ
ることで、鋼棒14先端面を突部4先端面に当接させる
。Next, as shown in FIG. 7, the remaining steel rod 14 is similarly inserted into the other cover nut 7, thereby connecting this steel rod 14 to the fixing device l. Here, if a slight gap remains between the tip end surface of the steel rod 14 and the tip end surface of the protrusion 4, when the grip section 2 of the joining unit 5 is rotated as described above, the already connected steel rod Either the tip end surface of the steel rod 13 will be separated from the tip end surface of the protrusion 4, or the tip end surface of the steel rod 13 will be pressed against the tip end surface of the protrusion 4 with unreasonable force. Therefore, as shown in FIG. 8, by rotating the other cover nut 7 in one direction, the tip end surface of the steel rod 14 is brought into contact with the tip surface of the protrusion 4.
以上のような作業により鋼棒13.14を突き合わせ接
合することができる。ここで、この実施例では、接合す
べき鋼棒13.14を定着装置l内に挿入するだけでこ
れら鋼棒13.14を互いに接合でき、接合作業が迅速
にしかも確実に行えると共に、従来の鉄筋接合用のカブ
ラ等のようにカプラ固定用の治具も必要とせず、狭い作
業空間においても容易に鋼棒13.14の接合作業が行
える。The steel rods 13 and 14 can be butted and joined by the above operations. In this embodiment, the steel rods 13.14 to be welded can be joined to each other simply by inserting them into the fixing device l, and the joining operation can be performed quickly and reliably. There is no need for a jig for fixing the coupler, such as a coupler for joining reinforcing bars, and the work of joining the steel bars 13 and 14 can be easily performed even in a narrow work space.
また、楔体10.・・・がテーパ面8に対して回動自在
とされているため、楔体10.・・・の雌ねじ11、・
・・が鋼棒や異形鉄筋等の外周面に係合した後でカバー
ナツト7や接合ユニット5を回転させても、楔体10.
・・・が連れ回りすることがなく、楔体lOl・・・と
鋼棒、異形鉄筋等との間の保合状態が堅固に維持される
。このため、前述の如く鋼棒等の定着装置1への連結に
際して、その先端面と接合ユニット5の突部4の先端面
との間に空隙が生じた場合でも、鋼棒等と楔体10.・
・・との係合状態を変えることなく、接合ユニット5の
把持部2又はカバーナツト7を回転させることでこれら
鋼棒13.14先端面を突部4先端面に当接させること
かでき、鋼棒13.14及び定着装置lを完全に一体化
させた状態で接合させることができる。しかも、鋼棒1
3.14を回転させることなくその先端面を突部4先端
面に当接させることができるため、建築現場等において
鋼棒が既に構築された部分に固定されている場合や、鋼
捧篭のように鋼棒が先組みされている一場合等において
もこれら鋼棒を接合することができる。Also, cuneiform 10. ... are rotatable with respect to the tapered surface 8, so that the wedge bodies 10. Female thread 11 of...
Even if the cover nut 7 or the joining unit 5 is rotated after the wedge body 10.
. . . does not rotate together, and the state of engagement between the wedge bodies lOl . . . and steel rods, deformed reinforcing bars, etc. is firmly maintained. Therefore, even if a gap is created between the tip end surface of the steel rod or the like and the tip end surface of the protrusion 4 of the joining unit 5 when connecting the steel rod or the like to the fixing device 1 as described above, the steel rod or the like and the wedge body 10 ..・
By rotating the grip part 2 or cover nut 7 of the joining unit 5, the tip surfaces of these steel rods 13 and 14 can be brought into contact with the tip surfaces of the protrusions 4 without changing the state of engagement with the steel rods 13 and 14. The rods 13, 14 and the fixing device l can be joined in a completely integrated manner. Moreover, steel rod 1
3.14 can be brought into contact with the tip surface of the protrusion 4 without rotating it, so it can be used when the steel rod is fixed to an already constructed part at a construction site, etc., or when a steel bar is attached to a steel cage. Even in cases where the steel bars are pre-assembled as in the above example, these steel bars can be joined.
次に、第9図ないし第11!ffは、この発明の棒状体
の定着装置を異形鉄筋の接合に用いた第2実施例を示す
図である。なお、以下の説明において、前記実施例と同
一の構成要素については同一の符号を付し、その説明を
省略する。Next, Figures 9 to 11! ff is a diagram showing a second embodiment in which the rod-shaped body fixing device of the present invention is used for joining deformed reinforcing bars. In the following description, the same components as those in the embodiment described above will be denoted by the same reference numerals, and the description thereof will be omitted.
この実施例では、第10図に示すように、テーパ面8の
軸方向に延在する案内爪9、・・・が、スプリング12
と一体戊形されてテーパ面8に沿って配設され、これに
より楔体10.・・・は案内爪9、・・・に案内されて
カバーナツト7の軸方向に摺動自在とされると共に、案
内爪9.9がテーパ面8の周方向に沿って回動自在とさ
れることで、楔体10、・・・全体としてもテーパ面8
の周方向に回動自在とされている。このため、スプリン
グ12及び案内爪9.9はプラスチック等の可撓性を有
する材質で成形され、かつ、スプリング12は蛇腹状に
形成されている。なお、符号19はスプリング12外周
に巻回されたスパイラルスプリングであり、樹脂製のス
プリング12のみで付勢力が不足する場合のみ必要とさ
れる。In this embodiment, as shown in FIG. 10, guide claws 9, .
The wedge body 10. is formed integrally with the wedge body 10. . . . are guided by the guide claws 9, . Therefore, the wedge body 10...the tapered surface 8 as a whole
It is said that it can rotate freely in the circumferential direction. Therefore, the spring 12 and the guide pawl 9.9 are made of a flexible material such as plastic, and the spring 12 is formed into a bellows shape. Note that reference numeral 19 is a spiral spring wound around the outer periphery of the spring 12, and is required only when the urging force is insufficient with only the resin spring 12.
また、この実施例では、楔体101・・・が4分割構成
とされ、従って、案内爪9、・・・もテーパ面8の周方
向に沿って4個設けられている。すなわち、通常の異形
鉄筋16にはその軸方向に延在する節17及び周方向に
延在する節18が設けられているため、第11図に示す
楔体10.・・・間の溝に異形鉄筋16の軸方向の節1
7を嵌入させることで、異形鉄筋16の挿入及び固定を
容易にするのである。Further, in this embodiment, the wedge bodies 101 are divided into four parts, and accordingly, four guide claws 9 are also provided along the circumferential direction of the tapered surface 8. That is, since a normal deformed reinforcing bar 16 is provided with nodes 17 extending in the axial direction and nodes 18 extending in the circumferential direction, the wedge body 10 shown in FIG. ... Axial node 1 of deformed reinforcing bar 16 in the groove between
7 facilitates insertion and fixation of the deformed reinforcing bars 16.
この実施例による異形鉄筋の接合作業は前記実施例のそ
れとほぼ同様であり、また、得られる作用効果も前記実
施例とほぼ同様である。The work of joining deformed reinforcing bars according to this embodiment is almost the same as that of the previous embodiment, and the effect obtained is also almost the same as that of the previous embodiment.
「発明の他の実施例」
この発明の棒状体の定着装置は、その細部が前記実施例
に限定されず、種々の変形例が可能である。以下、第1
2図ないし第14図を参照して、この発明の他の実施例
について説明する。"Other Embodiments of the Invention" The details of the rod-shaped body fixing device of the present invention are not limited to the embodiments described above, and various modifications are possible. Below, the first
Other embodiments of the present invention will be described with reference to FIGS. 2 to 14.
第12図は、この発明の棒状体の定着装置lを鉄板30
への鋼棒13の定着に用いた例を示す図である。このよ
うに、1本の鋼棒13を鉄板30等の構造体に定着する
目的で定着袋[1を使用することもでき、この場合は、
接合ユニット5の一方にその雄ねじ部3に螺合する雌ね
じ部31が刻設された筒体32を取り付け、これを鉄板
30に溶接等して固定すれば良い。FIG. 12 shows a rod-shaped body fixing device l of the present invention mounted on an iron plate 30.
It is a figure which shows the example used for fixing the steel rod 13 to. In this way, the fixing bag [1 can also be used for the purpose of fixing one steel rod 13 to a structure such as the iron plate 30, and in this case,
A cylindrical body 32 having a female threaded part 31 that is screwed into the male threaded part 3 is attached to one side of the joining unit 5, and this can be fixed to the iron plate 30 by welding or the like.
また、第13図は、この発明の棒状体の定着装置lを鋼
棒13とねじ蹄鉄筋33との接合に用いた例を示す図で
ある。この場合も、前記筒体32を接合ユニット5の一
方に取り付ければ良いが、この筒体32のねじ蹄鉄筋3
3が固定される箇所にはこのねじ蹄鉄筋33のピッチ及
び有効径に合致した雌ねじ部34を刻設する必要がある
。Further, FIG. 13 is a diagram showing an example in which the rod-shaped body fixing device 1 of the present invention is used for joining a steel rod 13 and a threaded horseshoe reinforcing bar 33. In this case as well, the cylindrical body 32 may be attached to one side of the joining unit 5.
It is necessary to carve a female threaded portion 34 that matches the pitch and effective diameter of the threaded horseshoe reinforcing bar 33 at the location where the threaded horseshoe reinforcing bar 33 is fixed.
さらに、第14図は柱を挾んで鋼棒13同士を接合する
例を示す図であり、相対向する柱の鉄板30(図中では
一方の鉄板のみ示しである)にそれぞれ定着装置lを設
け、かつ、これら接合装置lを第13図に示した例と同
様にねじ節鉄筋33及び筒体32を用いて互いに連結し
ている。この場合、定着装置1を鉄板30に固定するに
は、その接合ユニット5にナツト35を螺着して鉄板3
0の一側面に固定すればよい。Furthermore, FIG. 14 is a diagram showing an example of joining the steel bars 13 by sandwiching the columns, and a fixing device l is provided on each of the iron plates 30 of opposing columns (only one iron plate is shown in the figure). , and these joining devices 1 are connected to each other using threaded reinforcing bars 33 and cylindrical body 32 as in the example shown in FIG. In this case, in order to fix the fixing device 1 to the iron plate 30, a nut 35 is screwed onto the joining unit 5 and the iron plate 30 is fixed.
It is sufficient to fix it to one side of 0.
なお、前記実施例では鋼棒や鉄筋の接合についてのみ説
明したが、この発明の棒状体の定着装置はタイロッド等
の棒状体一般に好適に適用可能である。また、楔体lO
l・・・の内周面10b、・・・に形成した係合歯の形
状も雌ねじ11に限定されず、鋸歯状等周知形状から適
宜選択可能である。In the above embodiments, only the joining of steel rods and reinforcing bars has been described, but the rod-shaped body fixing device of the present invention can be suitably applied to rod-shaped bodies in general such as tie rods. Also, cuneiform lO
The shape of the engaging teeth formed on the inner circumferential surfaces 10b, .
「発明の効果」 以上詳細に説明したように、この発明によれば。"Effect of the invention" As described in detail above, according to the present invention.
接合すべき棒状体を定着装置内に挿入するだけでこれら
棒状体を互いに接合でき、接合作業が迅速にしかも確実
に行えると共に、従来の鉄筋接合用のカブラ等のように
カブラ固定用の治具も必要とせず、狭い作業空間におい
ても容易に棒状体の接合作業が行える。These rod-shaped bodies can be joined together simply by inserting the rod-shaped bodies to be joined into the fixing device, and the joining work can be done quickly and reliably. Also, rod-shaped bodies can be easily joined even in a narrow work space.
また、楔体がテーバ面に対して回動自在とされているた
め、楔体の係合歯が調書や棒状体の外周面に係合した後
でカバーナツトや接合ユニットを回転させても楔体が連
れ回りすることがなく、楔体と棒状体との間の係合状態
が堅固に維持される。In addition, since the wedge body is rotatable relative to the Taber surface, even if the cover nut or joining unit is rotated after the engaging teeth of the wedge engage with the record or the outer peripheral surface of the rod-shaped body, the wedge body The wedge body and the rod-shaped body are not rotated together, and the state of engagement between the wedge body and the rod-shaped body is firmly maintained.
このため、棒状体の定着装置への連結に際して、その先
端面と接合ユニットの突部の先端面との間に空隙が生じ
た場合でも、接合ユニットの把持部又はカバーナツトを
回転させることでこれら棒状体先端面を突部先端面に当
接させることができ、棒状体及び定着装置を完全に一体
化させた状態で接合させることができる。しかも、棒状
体を回転させることなくその先端面を突部先端面に当接
させることができるため、例えば建築現場等において鉄
筋が既に構築された部分に固定されている場合や、鉄筋
篭のように鉄筋が先組みされている場合等においてもこ
れら鉄筋を接合することができる。Therefore, even if a gap occurs between the tip end surface of the rod-shaped body and the tip surface of the protrusion of the joining unit when connecting the rod-shaped body to the fixing device, the rod-like body can be fixed by rotating the gripping part of the joining unit or the cover nut. The distal end surface of the body can be brought into contact with the distal end surface of the protrusion, and the rod-shaped body and the fixing device can be joined in a completely integrated state. Moreover, since the tip end surface of the bar can be brought into contact with the tip end surface of the protrusion without rotating the rod-shaped body, it can be used, for example, when reinforcing bars are fixed to an already constructed part at a construction site, etc. Even if the reinforcing bars are pre-assembled, these reinforcing bars can be joined.
第1図ないし第4図はこの発明の第1実施例である棒状
体の定着装置を示す図であって、wg1図は断面図、第
2図は正面図、第3図は第1図のA−A’線に沿う矢視
断面図、第4図は側面図、第5図ないし第8図は本実施
例の定着装置による鉄筋の接合作業を説明するための図
、第9図ないし第11図はこの発明の第2実施例である
棒状体の定着装置を示す図であって、第9図は断面図、
第10図はスプリング及び案内爪を取り出して示した斜
視図、第11図は第9図のB−B’線に沿う矢視断面図
、第12図ないし第14図はこの発明の第3ないし第5
実施例である棒状体の定着装置を示す断面図である。
13.14・・・・・・鋼棒(棒状体)。1 to 4 are views showing a rod-shaped body fixing device according to a first embodiment of the present invention, in which FIG. 1 is a sectional view, FIG. 2 is a front view, and FIG. 3 is the same as that in FIG. 4 is a side view, FIGS. 5 to 8 are diagrams for explaining reinforcing bar joining work by the fixing device of this embodiment, and FIGS. FIG. 11 is a diagram showing a rod-shaped body fixing device according to a second embodiment of the present invention, and FIG. 9 is a sectional view;
FIG. 10 is a perspective view showing the spring and guide pawl taken out, FIG. 11 is a sectional view taken along line BB' in FIG. 9, and FIGS. Fifth
FIG. 2 is a cross-sectional view showing a rod-shaped body fixing device according to an embodiment. 13.14... Steel rod (rod-shaped body).
Claims (5)
た突部を有する接合ユニットと、軸方向に延在する貫通
孔が形成されたカバーナットとからなり、該カバーナッ
トの貫通孔の一端部には雌ねじが刻設されることでこの
カバーナットが前記接合ユニットの突部に螺合され、一
方カバーナットの貫通孔の他端部にはカバーナット他端
開口部から奥に向って拡開するテーパ面が形成されてい
ると共に、このテーパ面には、その周方向に分割された
楔体がこのテーパ面に沿ってカバーナットの軸方向及び
周方向に移動自在となるように複数個配設され、これら
楔体の内周面には前記棒状体の外周面に係合する形状の
係合歯が形成されているとともに、これら楔体をテーパ
面の小径部側に付勢する付勢手段が配設されている棒状
体の定着装置。(1) Consisting of a joining unit that has a protrusion that protrudes from the grip part and has a male thread carved on its outer peripheral surface, and a cover nut that has a through hole that extends in the axial direction, and the cover nut has a through hole that extends in the axial direction. One end of the hole is provided with a female thread so that the cover nut can be screwed into the protrusion of the joining unit, while the other end of the through hole of the cover nut is provided with a female thread extending from the opening of the other end of the cover nut. A tapered surface is formed that widens in the direction, and a wedge body divided in the circumferential direction is formed on this tapered surface so that it can freely move in the axial direction and circumferential direction of the cover nut along this tapered surface. A plurality of wedge bodies are disposed on the inner circumferential surface of the rod-shaped body, and engaging teeth shaped to engage with the outer circumferential surface of the rod-shaped body are formed on the inner circumferential surface of the wedge bodies. A bar-shaped fixing device that is provided with a biasing means for biasing the body.
記接合ユニットの突部先端には棒状体の先端部が収納さ
れる位置決め凹部が形成されていることを特徴とする棒
状体の定着装置。(2) The fixing device for a rod-shaped body according to claim 1, wherein a positioning recess in which the tip of the rod-shaped body is accommodated is formed at the tip of the protrusion of the joining unit. Device.
記位置決め凹部の外周端部には前記楔体の大径部に向か
って突出する楔体押圧部が設けられていることを特徴と
する棒状体の定着装置。(3) The fixing device for a rod-shaped body according to claim 2, wherein a wedge pressing portion that protrudes toward a large diameter portion of the wedge is provided at an outer peripheral end of the positioning recess. A rod-shaped body fixing device.
の定着装置において、前記テーパ面上には前記カバーナ
ットの軸方向に延在する案内爪が、このカバーナットの
周方向に移動自在に配設されていると共に、前記楔体の
側面はこの案内爪に常時当接する形状に形成されている
ことを特徴とする棒状体の定着装置。(4) In the rod-shaped body fixing device according to claim 1, claim 2, or claim 3, a guide claw extending in the axial direction of the cover nut is provided on the tapered surface in the circumferential direction of the cover nut. 1. A rod-shaped fixing device, characterized in that the wedge body is movably disposed in the rod-shaped body, and the side surface of the wedge body is formed in a shape such that it always comes into contact with the guide pawl.
の棒状体の定着装置において、前記カバーナットの他端
開口部には前記楔体のカバーナット外方への突出を阻止
するストッパが設けられていることを特徴とする棒状体
の定着装置。(5) In the rod-shaped body fixing device according to claim 1, claim 2, claim 3, or claim 4, the other end opening of the cover nut prevents the wedge from protruding outward from the cover nut. A fixing device for a rod-shaped body, characterized in that it is provided with a stopper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20872289A JPH0372142A (en) | 1989-08-11 | 1989-08-11 | Anchoring device for rod-shaped body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20872289A JPH0372142A (en) | 1989-08-11 | 1989-08-11 | Anchoring device for rod-shaped body |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0372142A true JPH0372142A (en) | 1991-03-27 |
Family
ID=16561002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20872289A Pending JPH0372142A (en) | 1989-08-11 | 1989-08-11 | Anchoring device for rod-shaped body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0372142A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0589642U (en) * | 1991-06-14 | 1993-12-07 | ミン フイ リン | Rebar joining device |
KR100726484B1 (en) * | 2004-11-29 | 2007-06-12 | 티에스스틸산업 주식회사 | A Steel Reinforcing Connection Sleeve And Precast Concrete Member Using The Same |
US8201381B2 (en) * | 2005-10-17 | 2012-06-19 | Richard Heath | Concrete deck insert |
KR101988611B1 (en) * | 2018-11-19 | 2019-06-13 | 주식회사 엔씨 | non-slip steel bar reinforcement coupler |
KR102256914B1 (en) * | 2020-09-01 | 2021-05-27 | 이은기 | Lock key unit holder of steel reinforcing bar coupler |
US20220235550A1 (en) * | 2019-05-29 | 2022-07-28 | Wellsysmetal Co., Ltd. | Rebar movement-prevention-type one-touch coupler |
-
1989
- 1989-08-11 JP JP20872289A patent/JPH0372142A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0589642U (en) * | 1991-06-14 | 1993-12-07 | ミン フイ リン | Rebar joining device |
KR100726484B1 (en) * | 2004-11-29 | 2007-06-12 | 티에스스틸산업 주식회사 | A Steel Reinforcing Connection Sleeve And Precast Concrete Member Using The Same |
US8201381B2 (en) * | 2005-10-17 | 2012-06-19 | Richard Heath | Concrete deck insert |
KR101988611B1 (en) * | 2018-11-19 | 2019-06-13 | 주식회사 엔씨 | non-slip steel bar reinforcement coupler |
US20220235550A1 (en) * | 2019-05-29 | 2022-07-28 | Wellsysmetal Co., Ltd. | Rebar movement-prevention-type one-touch coupler |
KR102256914B1 (en) * | 2020-09-01 | 2021-05-27 | 이은기 | Lock key unit holder of steel reinforcing bar coupler |
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