JPH0748820Y2 - Deformed steel bar - Google Patents
Deformed steel barInfo
- Publication number
- JPH0748820Y2 JPH0748820Y2 JP1989054048U JP5404889U JPH0748820Y2 JP H0748820 Y2 JPH0748820 Y2 JP H0748820Y2 JP 1989054048 U JP1989054048 U JP 1989054048U JP 5404889 U JP5404889 U JP 5404889U JP H0748820 Y2 JPH0748820 Y2 JP H0748820Y2
- Authority
- JP
- Japan
- Prior art keywords
- mark
- steel bar
- peripheral portion
- bar body
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Reinforcement Elements For Buildings (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、棒鋼本体に、この棒鋼本体より大径の節部が
長手方向所定間隔ごとに形成されると共に、上記棒鋼本
体にマーク部がこの棒鋼本体より突出して形成されてな
り、かつ主としてコンクリート内に配設して鉄筋として
用いられる異形棒鋼に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] According to the present invention, a bar steel body is formed with nodes having a diameter larger than that of the bar steel body at predetermined intervals in the longitudinal direction, and a mark portion is formed on the bar steel body. The present invention relates to a deformed steel bar that is formed so as to project from the steel bar body and that is mainly disposed in concrete and is used as a reinforcing bar.
従来、この種の異形棒鋼としては、第５図と第６図に示
すように、断面略円形の棒鋼本体１に、この棒鋼本体１
より大径の横リブ（節部）２を長手方向所定間隔ごとに
形成すると共に、これらの横リブ２に交差して棒鋼本体
１の長手方向に延びる縦リブ３を形成し、かつ上記棒鋼
本体１の横リブ２を一部取り除き、この部分にマーク４
を形成したものが知られている。そして、上記異形棒鋼
は、一対の圧延ロールによって熱間圧延されることによ
り形成される。Conventionally, as this type of deformed steel bar, as shown in FIGS. 5 and 6, a steel bar main body 1 having a substantially circular cross section is used.
Lateral ribs (nodes) 2 having a larger diameter are formed at predetermined intervals in the longitudinal direction, and vertical ribs 3 that intersect the lateral ribs 2 and extend in the longitudinal direction of the steel bar body 1 are formed. Part of the horizontal rib 2 of 1 was removed, and the mark 4
It is known that this is formed. The deformed steel bar is formed by hot rolling with a pair of rolling rolls.
ところで、上記従来の異形棒鋼にあっては、横リブ２の
一部を取り除き、この部分にマーク４を、棒鋼本体１か
ら所定量突出した状態で形成しているために、この部分
の強度が、横リブ２を有する部分の強度より低下すると
共に、曲げた場合の曲率が変化する等の不具合があっ
た。By the way, in the conventional deformed steel bar, part of the lateral rib 2 is removed, and the mark 4 is formed in this part in a state of protruding by a predetermined amount from the steel bar main body 1. In addition, the strength of the portion having the lateral ribs 2 is lower than that of the portion, and the curvature when bent is changed.
本考案は、上記事情に鑑みてなされたもので、その目的
とするところは、マーク部分の強度低下を防止できると
共に、曲げた場合の曲率が均一になって、全長にわたっ
て均質な製品を得ることができる異形棒鋼を提供するこ
とにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to obtain a product which is capable of preventing a decrease in strength of a mark portion, has a uniform curvature when bent, and has a uniform length. It is to provide a deformed steel bar capable of
上記目的を達成するために、本考案は、棒鋼本体にマー
ク部をこの棒鋼本体より突出して形成し、マーク部の周
囲に、節部（横リブ）から間隔を置いてマーク周囲部を
設け、このマーク周囲部と節部との間の部分は棒鋼本体
と同一径に設定する一方、このマーク周囲部を上記棒鋼
本体より突出して形成し、かつ上記マーク部を上記マー
ク周囲部より突出して形成したものである。In order to achieve the above-mentioned object, the present invention forms a mark portion on a steel bar body so as to project from the steel bar body, and provides a mark peripheral portion around the mark portion at a distance from a node portion (lateral rib). The portion between the mark peripheral portion and the node portion is set to have the same diameter as the steel bar body, while the mark peripheral portion is formed so as to project from the steel bar body, and the mark portion is formed so as to project from the mark peripheral portion. It was done.
本考案の異形棒鋼にあっては、マーク部の周囲に棒鋼本
体より突出したマーク周囲部を形成することによって、
この部分の強度を向上させると共に、このマーク周囲部
よりも節部（横リブ）側の部分においては、マーク部の
ない他の節部同士の間と同じく棒鋼本体と同一径として
剛性のバランスの均一化を図り、曲げた場合の曲率を他
の部分に合致させる。In the deformed steel bar of the present invention, by forming the mark peripheral portion projecting from the steel bar main body around the mark portion,
In addition to improving the strength of this part, in the part on the nodal (lateral rib) side of this mark surrounding part, the same diameter as the steel bar main body is used as between the other non-marked nodal parts to balance the rigidity. Make it uniform and match the curvature when bent to other parts.
以下、第１図ないし第４図に基づいて本考案の実施例を
説明する。An embodiment of the present invention will be described below with reference to FIGS.
第１図と第２図は本考案の第１実施例を示すもので、第
１図は正面図、第２図は側面図である。これらの図にお
いて符号10は断面略円形の棒鋼本体であり、この棒鋼本
体10には、この棒鋼本体10より大径の横リブ（節部）11
が長手方向所定間隔ごとに形成されている。そして、上
記横リブ11に交差して、180°ずれた位置に設けられ、
棒鋼本体10の長手方向に延びる一対の縦リブ12が上記棒
鋼本体10に形成されている。また、通常の相隣る横リブ
11間の間隔の２倍に設定された一対の横リブ11間には、
マーク周囲部13が形成されており、このマーク周囲部13
の中央には、製造メーカーや品質を特定するためのマー
ク部14が形成されている。1 and 2 show a first embodiment of the present invention. FIG. 1 is a front view and FIG. 2 is a side view. In these drawings, reference numeral 10 is a bar steel body having a substantially circular cross section, and the bar steel body 10 has a lateral rib (node portion) 11 having a diameter larger than that of the bar steel body 10.
Are formed at predetermined intervals in the longitudinal direction. Then, it intersects with the horizontal rib 11 and is provided at a position shifted by 180 °,
A pair of vertical ribs 12 extending in the longitudinal direction of the steel bar body 10 are formed on the steel bar body 10. In addition, normal horizontal ribs next to each other
Between the pair of lateral ribs 11 set to twice the distance between the 11
A mark surrounding portion 13 is formed, and this mark surrounding portion 13
A mark portion 14 for identifying the manufacturer and the quality is formed in the center of the.
そして、上記マーク周囲部13は、その長手方向の領域が
上記一対の横リブ11間の間隔よりも狭められていて、こ
れら横リブ11から長手方向に間隔を置いて設けられてい
ると共に、上記棒鋼本体10よりａだけ大径に（ａだけ突
出して）形成されており、かつマーク部14はマーク周囲
部13より突出して形成されている。さらに、上記一対の
横リブ11間において、上記マーク周囲部13の外側の横リ
ブ11寄りの部分は、棒鋼本体10と同一径に設定されてい
る。The mark peripheral portion 13 has a region in the longitudinal direction narrower than the space between the pair of lateral ribs 11, and is provided at a distance from the lateral ribs 11 in the longitudinal direction. It is formed to have a diameter larger than that of the steel bar body 10 by a (projecting by a), and the mark portion 14 is formed so as to project from the mark peripheral portion 13. Further, between the pair of horizontal ribs 11, the outer side of the mark surrounding portion 13 near the horizontal rib 11 is set to have the same diameter as the steel bar body 10.
上記のように構成された異形棒鋼にあっては、マーク部
14の周囲に棒鋼本体10よりａだけ突出したマーク周囲部
13を設けたものであるから、このマーク周囲部13によっ
て、この部分の強度低下を補い、他の部分の強度と同程
度の強度を確保できると共に、上記異形棒鋼を曲げた場
合にも、上記マーク部分の曲率を補正して他の部分と同
程度の曲率に保つことによって、全長にわたって均一な
品質に維持できる。しかも、このマーク周囲部13より外
側の横リブ11寄りの部分は、マーク部14が形成されない
他の部分と同様に棒鋼本体10と同一径に形成されている
ので、このような横リブ11間の端の部分において徒に棒
鋼の剛性が高められるのを防ぎ、他の部分との剛性のバ
ランスをとってその均一化を図ることにより、マーク部
分の曲率を他の部分の曲率に一層等しくすることが可能
となる。In the deformed steel bar configured as above, the mark
Around the mark 14 protruding from the steel bar body 10 by 14a around the mark 14
Since 13 is provided, the mark peripheral portion 13 compensates for the decrease in strength of this portion, and it is possible to secure the same strength as the strength of other portions, and even when the deformed steel bar is bent, By correcting the curvature of the mark portion and maintaining the same curvature as the other portions, uniform quality can be maintained over the entire length. Moreover, since the portion of the outer side of the mark peripheral portion 13 near the horizontal rib 11 is formed to have the same diameter as the steel bar body 10 like the other portions where the mark portion 14 is not formed, the distance between such horizontal ribs 11 is increased. The curvature of the mark is made more equal to the curvature of the other part by preventing the rigidity of the steel bar from being excessively increased at the end part of the mark and by balancing the rigidity with other parts and making it uniform. It becomes possible.
また、第３図と第４図は本考案の第２実施例を示すもの
で、マーク周囲部13を円形に形成したものである。この
ように、マーク周囲部13は、所定の強度の向上を図るこ
とができれば、種々の形状が採用可能である。3 and 4 show a second embodiment of the present invention, in which the mark peripheral portion 13 is formed in a circular shape. As described above, the mark peripheral portion 13 can adopt various shapes as long as a predetermined strength can be improved.
以上説明したように、本考案は、棒鋼本体にマーク部を
この棒鋼本体より突出して形成し、マーク部の周囲に節
部から間隔を置いてマーク周囲部を設け、このマーク周
囲部と節部との間の部分は棒鋼本体と同一径に設定する
一方、このマーク周囲部を上記棒鋼本体より突出して形
成し、かつ上記マーク部を上記マーク周囲部より突出し
て形成したものであるから、マーク部の周囲に形成した
マーク周囲部によって、この部分の強度を向上させるこ
とにより、マーク部分の強度低下を防止できると共に、
このマーク周囲部の外側においては、マーク部のない節
部間と同様の剛性として徒に棒鋼の剛性が高められるの
を防ぎ、剛性のバランスをとってその均一化を図ること
により、曲げた場合の曲率を均一にできて、全長にわた
って均質な製品を得ることができるという優れた効果を
有する。As described above, according to the present invention, a mark portion is formed on a steel bar body so as to protrude from the steel bar body, and a mark peripheral portion is provided around the mark portion at a distance from the node portion. While the portion between and is set to the same diameter as the bar steel body, the mark peripheral portion is formed so as to project from the bar steel body, and the mark portion is formed so as to project from the mark peripheral portion. By improving the strength of this part by the mark surrounding part formed around the part, it is possible to prevent the strength of the mark part from decreasing.
Outside the periphery of this mark, the same rigidity as that between joints without marks is prevented, and the rigidity of the steel bar is prevented from being unduly increased. It has an excellent effect that the curvature can be made uniform and a uniform product can be obtained over the entire length.
第１図と第２図は本考案の第１実施例を示すもので、第
１図は正面図、第２図は側面図、第３図と第４図は本考
案の第２実施例を示すもので、第３図は正面図、第４図
は側面図、第５図と第６図は従来の異形棒鋼を示すもの
で、第５図は正面図、第６図は側面図である。 10……棒鋼本体、11……横リブ（節部）、13……マーク
周囲部、14……マーク部。1 and 2 show a first embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a side view, and FIGS. 3 and 4 are a second embodiment of the present invention. FIG. 3 is a front view, FIG. 4 is a side view, FIGS. 5 and 6 are conventional deformed steel bars, FIG. 5 is a front view, and FIG. 6 is a side view. . 10 …… Steel bar body, 11 …… Horizontal ribs (nodes), 13 …… Mark surrounding area, 14 …… Mark area.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 小嶋 達男 岐阜県安八郡神戸町大字横井字中新田1528 番地 三菱金属株式会社岐阜製作所内 (72)考案者 小林 達宜 岐阜県安八郡神戸町大字横井字中新田1528 番地 三菱金属株式会社岐阜製作所内 (72)考案者 安竹 睦美 岐阜県安八郡神戸町大字横井字中新田1528 番地 三菱金属株式会社岐阜製作所内 (72)考案者 高月 満広 岐阜県安八郡神戸町大字横井字中新田1528 番地 三菱金属株式会社岐阜製作所内 (56)参考文献 実開 昭62−61814（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tatsuo Kojima Inventor Tatsuo Kojima Oita, Kobe, Gifu Prefecture 1528 Nakanishi, Yokoi, Gifu Works, Mitsubishi Metals Co., Ltd. (72) Tatsunori Kobayashi Kobe, Ochihagun Gifu Prefecture Yokoi, Nakashinda 1528, Mitsubishi Metals Co., Ltd., Gifu Works (72) Inventor Mutsumi Yasushi, Kobe, Anha-gun, Gifu Prefecture, Osaka 1528 Yokoi, Nakashinta, Gifu, Co., Ltd. (72) Inventor, Mitsuhiro Takatsuki 1528 Nakashinda, Yokoi, Kobe, Anpachi-gun, Gifu Prefecture, Gifu Works, Mitsubishi Metals Co., Ltd. (56) References: 62-61814 (JP, U)
Claims (1)
が長手方向所定間隔ごとに形成されると共に、上記棒鋼
本体にマーク部がこの棒鋼本体より突出して形成された
異形棒鋼において、 上記マーク部の周囲に、上記節部から間隔を置いてマー
ク周囲部が設けられ、このマーク周囲部と上記節部との
間の部分は上記棒鋼本体と同一径に設定される一方、上
記マーク周囲部は上記棒鋼本体より突出して形成され、
かつ上記マーク部が上記マーク周囲部より突出して形成
されたことを特徴とする異形棒鋼。1. A deformed steel bar in which bar portions having a diameter larger than that of the steel bar body are formed at predetermined intervals in the longitudinal direction on the steel bar body, and mark portions are formed on the steel bar body so as to project from the steel bar body. Around the mark portion, a mark peripheral portion is provided at a distance from the joint portion, and a portion between the mark peripheral portion and the joint portion is set to have the same diameter as the bar steel body, while the mark is formed. The peripheral portion is formed to project from the steel bar body,
A deformed steel bar, wherein the mark portion is formed so as to protrude from the mark peripheral portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989054048U JPH0748820Y2 (en) | 1989-05-11 | 1989-05-11 | Deformed steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989054048U JPH0748820Y2 (en) | 1989-05-11 | 1989-05-11 | Deformed steel bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02144916U JPH02144916U (en) | 1990-12-10 |
| JPH0748820Y2 true JPH0748820Y2 (en) | 1995-11-08 |
Family
ID=31575763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989054048U Expired - Lifetime JPH0748820Y2 (en) | 1989-05-11 | 1989-05-11 | Deformed steel bar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0748820Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4637786B2 (en) * | 2006-04-26 | 2011-02-23 | 英樹 谷口 | Quality control method for steel bars for reinforced concrete |
| JP7617661B1 (en) * | 2023-10-06 | 2025-01-20 | 大谷製鉄株式会社 | Steel bar manufacturing equipment, manufacturing method, and quality control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0428967Y2 (en) * | 1985-10-04 | 1992-07-14 |
-
1989
- 1989-05-11 JP JP1989054048U patent/JPH0748820Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02144916U (en) | 1990-12-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |