JPH09217718A - Joining fitting for deformed steel bar - Google Patents
Joining fitting for deformed steel barInfo
- Publication number
- JPH09217718A JPH09217718A JP6159396A JP6159396A JPH09217718A JP H09217718 A JPH09217718 A JP H09217718A JP 6159396 A JP6159396 A JP 6159396A JP 6159396 A JP6159396 A JP 6159396A JP H09217718 A JPH09217718 A JP H09217718A
- Authority
- JP
- Japan
- Prior art keywords
- steel bar
- deformed steel
- cylindrical body
- joining
- connecting cylindrical
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 64
- 239000010959 steel Substances 0.000 title claims abstract description 64
- 238000005304 joining Methods 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】この発明は、異形棒鋼を接合
するための接合金具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for joining deformed steel bars.
【０００２】[0002]
【従来の技術】配筋材として広くもちいられている異形
棒鋼は、一般に高引張力鋼からなるため通常の溶接が出
来ず、このため棒鋼どうしの接合は、両棒鋼の端部をガ
ス加熱等により十分加熱して、油圧ジャツキ等で両端部
を圧接することにより行っている。2. Description of the Related Art Deformed bar steel, which is widely used as a reinforcing bar, is generally made of high tensile strength steel and cannot be welded normally. Therefore, when joining steel bars together, the ends of both steel bars are heated by gas, etc. Is sufficiently heated, and both ends are pressed against each other with a hydraulic jack or the like.
【０００３】[0003]
【発明が解決しようとする課題】しかし、この圧接接合
作業は、熟練を要し、しかも作業環境も厳しいため、最
近ではこの作業に必要な人員を確保することが困難とな
りつつある。又天候に左右為れやすい難点があり、圧接
接合の場合は棒鋼の両端が圧接により１０ミリ程度縮む
ため、拘束された状態にある棒鋼どうしの接合には摘要
できないという難点がある。このような異形棒鋼の接合
上の問題を解決するために、実公平６−３６３２９号公
報では、図４にしめされるような異形棒鋼接合金具が提
案されている。この接合金具は、内面に異形棒鋼の突起
９．９’が嵌まり込む溝１５．と１５’が形成された２
以上の縦割り状の分割部体１３ａ．１３ｂからなる連結
筒体１１の両端に外嵌される押さえ筒体１２Ａ．１２Ｂ
とから構成される金具であり、接合すべき両異形棒鋼Ｘ
の端部を連結筒体１１を構成する分割部体１３ａ．１３
ｂの両端側に挟みこんだ後、押さえ筒体１２Ａ．１２Ｂ
を、その内フランジ部１４が連結筒体１１の端面に当接
するようにして連結筒体１１の両端に外嵌させることに
より連結筒体１１の外側を拘束し、これにより異形棒鋼
Ｘの端部どうしの接合を行うものである。このような接
合金具を用いれば、従来のような圧接接合によることな
く、異形棒鋼の接合作業を感嘆に行うことが出来、また
既に施工された状態にある異形棒鋼どうしの接合も簡単
に出来る利点があるが、この接合金具には、以下のよう
な問題点があることが判明した。１．施工での異形棒鋼
接合時連結筒体１１に押さえ筒体１２Ａ．１２Ｂを外嵌
させる場合、異形棒鋼が太く重量がおもいときとか、異
形棒鋼が長いときなど連結筒体１１を手で押さえ押さえ
筒体１２Ａ．１２Ｂを嵌めるのに、とくに柱筋などは落
とす危険性があるためどうしても人員を必要とする問題
がある。２．接合時異形棒鋼が太くあるいは、長い場合
などは連結筒体１１を押さう押さえ筒１２Ａ．１２Ｂを
外嵌させネジ等で係止させるまでの時間にも問題があ
る。したがって本発明の目的は、このような従来の接合
金具の問題点を解消出来る接合金具を提供することにあ
る。However, since this pressure welding process requires skill and the working environment is severe, it has recently become difficult to secure the personnel required for this work. In addition, there is a problem that it is easily affected by the weather, and in the case of pressure welding, since both ends of the steel bars shrink by about 10 mm due to the pressure welding, there is a problem that it is not possible to join the steel bars in a restrained state. In order to solve such a problem in joining deformed steel bars, Japanese Utility Model Publication No. 6-36329 proposes a deformed steel bar fitting as shown in FIG. This joint fitting has a groove 15. into which the projection 9.9 'of the deformed steel bar is fitted on the inner surface. And 15 'was formed 2
The above-mentioned vertically divided division parts 13a. 13b, which are press-fitting cylinders 12A. 12B
It is a metal fitting composed of and
End portions of the divided portion bodies 13a. 13
After being sandwiched between both ends of the pressing cylinder 12A. 12B
Is externally fitted to both ends of the connecting cylinder body 11 such that the inner flange portion 14 thereof contacts the end surface of the connecting cylinder body 11, thereby restraining the outside of the connecting cylinder body 11 and thereby the end portion of the deformed steel bar X. It joins each other. Using such a metal fitting makes it possible to admire the work of joining deformed steel bars without the conventional pressure welding, and it is also easy to join deformed steel bars that have already been installed. However, it has been found that this metal fitting has the following problems. 1. When joining the deformed steel bars in construction, the connecting cylinder body 11 is pressed to the connecting cylinder body 12A. 12B, when the deformed steel bar is thick and heavy, or when the deformed steel bar is long, the connecting cylinder body 11 is manually pressed and held. To fit a 12B, such as in particular pillar muscle there is a problem that requires absolutely personnel because there is a risk of dropping. 2. When the deformed steel bar is thick or long at the time of joining, the holding cylinder 12A. There is also a problem in the time until the 12B is externally fitted and locked with a screw or the like. Therefore, an object of the present invention is to provide a joint fitting that can solve the problems of the conventional joint fitting.
【０００４】[0004]
【課題を解決するための手段】このような目的を達成す
るために、本発明の接合金具は以下のような構成をゆう
する。 （１）２以上の縦割り状の分割部体からなる筒状体であ
って、その各端側が、接合すべき異形棒鋼を狭入する棒
鋼狭入部を構成した連結筒体と、この連結筒体の両横に
外嵌される押さえボルトからなり、前期連結筒体の各棒
鋼狭入部の内面に、異形棒鋼の突起が嵌まり込む溝が形
成された異形棒鋼の接合金具。 （２）上記（１）、の接合金具において、連結筒体が、
接合すべき異形棒鋼と同じか若しくはそれ以上の引張り
強度を有する鋼により構成され、且つ連結筒体の径方向
総断面積が異形棒鋼の径方向断面積以上である異形棒鋼
の接合金具。In order to achieve such an object, the metal fitting of the present invention has the following structure. (1) A tubular body composed of two or more vertically divided split bodies, each end side of which constitutes a steel bar narrowing portion into which a deformed steel bar to be joined is narrowed, and this connecting cylinder Deformation bar steel fittings consisting of holding bolts that are fitted on both sides of the body, and a groove into which the projection of the deformed bar steel fits is formed on the inner surface of each steel bar narrowing portion of the connecting cylinder. (2) In the joint fitting according to (1) above, the connecting cylinder is
A metal fitting for a deformed steel bar, which is made of steel having a tensile strength equal to or higher than that of the deformed steel bar to be joined, and in which the total cross-sectional area in the radial direction of the connecting cylinder is equal to or larger than the radial cross-sectional area of the deformed steel bar.
【０００５】[0005]
【発明の作用】この接合金具は、縦割り状の１対の分割
部対２ａ．２ｂからなる連結筒対１と、この連結筒対１
にネジ等により螺合または外嵌するボルトから構成され
ている。棒鋼接合時連結筒体をボルト等に軽く組み合わ
せておき、既存異形棒鋼に連結筒体の狭入部を差し込み
異形棒鋼の突起に合わせ既存側ボルトを動かない程度に
締めておき、足す異形棒鋼を連結筒体の狭入部に入れ異
形棒鋼の突起に合わせボルトをしめる。現在建設現場に
おいては蓄電池型式のボルト締め機が多く使用されてい
るため連結筒体を螺合するボルト等などには、便利であ
る。According to the present invention, the joining metal fitting is composed of a pair of vertically divided parts 2a. 2b connecting cylinder pair and this connecting cylinder pair 1
It is composed of a bolt that is screwed onto or externally fitted by a screw or the like. When joining steel bars, lightly combine the connecting cylinder with bolts, etc., insert the narrow insertion part of the connecting cylinder into the existing deformed steel bar, align it with the projection of the deformed steel bar and tighten the existing side bolts so that it does not move, then connect the deformed steel bar to be added Insert it into the narrow part of the cylinder and tighten the bolt to the protrusion of the deformed steel bar. At the construction site, storage battery type bolt tighteners are often used at present, which is convenient for bolts and the like for connecting the connecting cylinders.
【０００６】[0006]
【発明の実施例】図１ないし図２図３は本発明の実施形
態の一例を示すもので、図１は棒鋼を接合した状態での
斜視図であり、図２．３はボルトの本数を替えたときの
斜視図であり図４は外筒体を一部切欠いた状態で示す分
解斜視図、図５は連結筒体を構成する一方の分割部体の
斜視図である。この接合金具は、縦割り状の１対の分割
部体２ａ．２ｂからなる連結筒体とこの連結筒体を螺合
するボルトにより構成されている。前期連結筒体１は、
これを構成する分割部体２ａ．２ｂを合わせた状態で筒
状体であり、少なくともその各端側の内部が、接合すべ
き異形棒鋼を狭入する棒鋼狭入部１０となっている。こ
の棒鋼狭入部１０の内面周方向には、異形棒鋼の周方向
の突起９が嵌まり込む溝４が形成されている。また各分
割部体２ａ．２ｂ内側の長手方向に沿った縁部には、異
形棒鋼の両側長手方向に沿った突起９’を嵌め込むため
の切欠き５が形成されている。すなわち、この切欠き５
は分割部体２ａ．２ｂを筒状重ね合わせた状態で、溝
４’を構成する。連結筒体１の内径は、接合すべき異形
棒鋼の外径と同じか若しくは若干大き目に構成される。
連結筒体１を螺合するボルト８．は連結筒体に応力が作
用したとき、連結筒体１を拘束できる程度の力を有する
ボルトであればよい。異形棒鋼の太さ及び使いかたによ
りボルトの数を増減することができる。このため、連結
筒体１の材質や断面積を異形棒鋼Ｘと同程度か若しくは
それ以上とすることにより、配筋材やその他の接合用途
に適した場合に引張にたいして高い強度がえられる。な
お、本発明の接合金具は配筋材たる異形棒鋼の接合用と
して最適なものであるが、これ以外にダム工事や橋梁工
事において異形棒鋼とワイヤーとかに使用することがで
きる。1 to 2 FIG. 3 shows an example of an embodiment of the present invention. FIG. 1 is a perspective view of a steel bar joined together, and FIG. 2.3 shows the number of bolts. FIG. 4 is a perspective view when the outer cylinder is replaced, and FIG. 4 is an exploded perspective view showing a state in which the outer cylinder is partially cut away, and FIG. 5 is a perspective view of one of the divided parts constituting the connecting cylinder. This joining metal fitting is composed of a pair of vertically divided split parts 2a. It is composed of a connecting cylinder made of 2b and a bolt for screwing the connecting cylinder. The first term connecting cylinder 1
The divided parts 2a. It is a tubular body in a state where 2b are combined, and at least the inside of each end side thereof is a steel bar narrowing portion 10 into which a deformed steel bar to be joined is inserted. A groove 4 into which a circumferential projection 9 of the deformed steel bar is fitted is formed in the inner circumferential direction of the steel bar narrowing portion 10. In addition, each divided body 2a. A notch 5 is formed at the inner edge of the 2b along the longitudinal direction, into which projections 9'of both sides of the deformed steel bar are fitted. That is, this notch 5
Is a divided part 2a. A groove 4'is formed in a state in which 2b are superposed in a cylindrical shape. The inner diameter of the connecting cylinder 1 is the same as or slightly larger than the outer diameter of the deformed steel bars to be joined.
Bolt for screwing the connecting cylinder 1 8. Is a bolt having a force sufficient to restrain the connecting cylinder 1 when stress is applied to the connecting cylinder. The number of bolts can be increased or decreased depending on the thickness and usage of the deformed steel bar. Therefore, by setting the material and the cross-sectional area of the connecting cylinder 1 to the same level as or more than that of the deformed steel bar X, high strength can be obtained against pulling when suitable for a reinforcing bar material and other joining applications. The joining metal fitting of the present invention is most suitable for joining deformed steel bars, which are reinforcing bars, but it can also be used for deformed steel bars and wires in dam construction and bridge construction.
【０００７】[0007]
【発明の効果】以上述べた本発明の接合金具によれば、
次のような効果が得られる。 １．連結筒体の両横をボルト等にて螺合及び外嵌する構
造であるため異形棒鋼接合が簡単にでき、短時間で接合
ができる。 ２．連結筒体をあらかじめ組み合わせておくことがで
き、部品をなくすことがない。According to the joint fitting of the present invention described above,
The following effects can be obtained. 1. Since both sides of the connecting cylinder are screwed and fitted with bolts or the like, the deformed steel bars can be easily joined and can be joined in a short time. 2. The connecting cylinders can be assembled in advance, and no parts are lost.
【図１】本発明の実施形態の一部を示すもので、棒鋼を
接合した状態の平面図FIG. 1 is a plan view showing a part of an embodiment of the present invention, in which steel bars are joined together.
【図２】本発明の実施形態の一部を示すもので、棒鋼を
接合した正面図FIG. 2 is a front view showing a part of the embodiment of the present invention, in which steel bars are joined.
【図３】本発明の実施形態の一部を示すもので、棒鋼を
接合した断面図FIG. 3 is a sectional view showing a part of the embodiment of the present invention, in which steel bars are joined.
【図４】従来の接合金具の構造を示す縦断面図FIG. 4 is a vertical sectional view showing the structure of a conventional joining fitting.
１．連結筒体 ２ａ．２ｂ分割部体 ３．異形
棒鋼の突起（節） ４．４’溝 ８．締めつけボルト（ネジ）
１０．棒鋼狭入部1. Connection cylinder 2a. 2b division body 3. Deformed steel bar protrusions (nodes) 4.4 'groove 8. Tightening bolt (screw)
10. Steel bar narrow insertion part
Claims (2)
体であって、その各端側が、接合すべき異形棒鋼を狭入
する棒鋼狭入部を構成した連結筒体と、この連結筒体の
両横に外嵌される押さえボルトからなり、前期連結筒体
の各棒鋼狭入部の内面に、異形棒鋼の突起が嵌まり込む
溝が形成された異形棒鋼の接合金具。Claims: 1. A cylindrical body comprising two or more vertically divided divisional bodies, each end side of which constitutes a steel bar narrowing portion into which a deformed steel bar to be joined is narrowed, and A deformed steel bar joining metal fitting, which comprises press bolts fitted on both sides of the connected cylindrical body, and has grooves formed on the inner surface of each steel bar narrowing portion of the connected cylindrical body into which projections of the deformed steel bar are fitted.
若しくはそれ以上の引張り強度を有する鋼により構成さ
れ、且つ連結筒体の径方向総断面積が異形棒鋼の径方向
断面積以上である請求項１に記載の異形棒鋼の接合金
具。2. The connecting cylinder is made of steel having a tensile strength equal to or higher than that of the deformed steel bars to be joined, and the total radial cross-sectional area of the connecting cylinder is not less than the radial cross-sectional area of the deformed steel bar. The joining bracket for deformed steel bars according to claim 1, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6159396A JPH09217718A (en) | 1996-02-13 | 1996-02-13 | Joining fitting for deformed steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6159396A JPH09217718A (en) | 1996-02-13 | 1996-02-13 | Joining fitting for deformed steel bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09217718A true JPH09217718A (en) | 1997-08-19 |
Family
ID=13175615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6159396A Pending JPH09217718A (en) | 1996-02-13 | 1996-02-13 | Joining fitting for deformed steel bar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09217718A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015017670A (en) * | 2013-07-11 | 2015-01-29 | アロン化成株式会社 | Shaft holding structure and portable toilet |
-
1996
- 1996-02-13 JP JP6159396A patent/JPH09217718A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015017670A (en) * | 2013-07-11 | 2015-01-29 | アロン化成株式会社 | Shaft holding structure and portable toilet |
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