JP3151740U - Rebar retainer - Google Patents

Rebar retainer Download PDF

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JP3151740U
JP3151740U JP2009002621U JP2009002621U JP3151740U JP 3151740 U JP3151740 U JP 3151740U JP 2009002621 U JP2009002621 U JP 2009002621U JP 2009002621 U JP2009002621 U JP 2009002621U JP 3151740 U JP3151740 U JP 3151740U
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hole
reinforcing bar
basic
bars
ridges
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雅弘 足立
雅弘 足立
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末広産業株式会社
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【課題】鉄筋コンクリート構造物の構築に際し、連結用鉄筋の位置決め作業の容易化、迅速化を図り、作業効率の向上を図ることができる鉄筋保持具を提供する。【解決手段】棒状の鋼材の外周にリング状の山部7が多数突設されるとともに、対向する面に軸の長手方向に沿って山部7間を連接する稜線部8が突設されてなる連結用鉄筋5を保持する鉄筋保持具であって、所定の長さを有して少なくとも隣り合う2つの縦筋の間に架け渡される梁部を有するとともに、該梁部の両端部に連結用鉄筋を支持する支持部2が対設され、上記支持部に貫通孔3が設けられ、該貫通孔は連結用鉄筋が挿通される程度の山部7より若干大なる孔からなる基本孔11と、該基本孔の下部の下方に連続する付加孔12とからなり、付加孔12が連結用鉄筋の内周に形成される谷部9に当接する当接部及び上記稜線部を収納する収納部を有する。【選択図】図3To provide a reinforcing bar holder capable of facilitating and speeding up positioning work of a connecting reinforcing bar and improving work efficiency when constructing a reinforced concrete structure. A large number of ring-shaped ridges 7 project from the outer periphery of a rod-shaped steel material, and ridges 8 that project between the ridges 7 along the longitudinal direction of the shaft are projected from opposite surfaces. A reinforcing bar holder for holding a connecting reinforcing bar 5 having a beam portion spanned between at least two adjacent vertical bars having a predetermined length and connected to both ends of the beam portion A support portion 2 that supports the reinforcing steel bars is provided, and a through hole 3 is provided in the support portion. The through hole is a basic hole 11 that is slightly larger than the peak portion 7 through which the connecting reinforcing bars are inserted. And an additional hole 12 that continues below the lower part of the basic hole, and the additional hole 12 accommodates the contact portion that contacts the valley portion 9 formed on the inner periphery of the connecting rebar and the ridge line portion. Part. [Selection] Figure 3

Description

本願考案は、鉄筋コンクリート構造物を構築する際に用いられる鉄筋連結用の鉄筋保持具に関する。   The present invention relates to a reinforcing bar holder for connecting reinforcing bars used when constructing a reinforced concrete structure.

コンクリート舗装を例にして説明すると、従来、片側通行を許容するために幅員全体を一度に施工できない場合、舗装幅の任意の中間点までの施工を先行して行い、その後で残りの工区を施工するようにしている。   In the case of concrete pavement as an example, conventionally, if the entire width cannot be constructed at one time to allow one-way traffic, construction up to an arbitrary midpoint of the pavement width is performed in advance, and then the remaining work section is constructed. Like to do.

このような方法はハーフ施工と呼ばれるが、ハーフ施工では先施工のコンクリート版と後施工のコンクリート版との連続性を確保するために、内部の鉄筋構造物にタイバーと呼ばれる連結用鉄筋を追加することになっている。   Such a method is called half construction, but in half construction, connecting bars called tie bars are added to the internal reinforcing bar structure to ensure continuity between the pre-construction concrete plate and the post-construction concrete plate. It is supposed to be.

具体的には、コンクリート打設面に沿って舗装厚の2/3の高さで縦筋および横筋を格子状に組み上げて構造用鉄筋を構築するほか、その構造用鉄筋における後施工側の端縁目地に直交する状態で複数の連結用鉄筋が配列される。   Specifically, in addition to constructing structural reinforcing bars by building up vertical and horizontal reinforcing bars in a grid pattern at a height of 2/3 of the pavement thickness along the concrete placement surface, the end of the post-construction side of the structural reinforcing bars A plurality of connecting reinforcing bars are arranged in a state orthogonal to the edge joint.

一般に、構造用鉄筋の高さ維持には安価な鉄筋スペーサが用いられるが、連結用鉄筋は舗装厚の約1/2の位置に設置されるので、その保持のために構造用鉄筋を支持するスペーサとは別の架台が用いられる(例えば、特許文献1)。   In general, inexpensive reinforcing bar spacers are used to maintain the height of the structural reinforcing bars, but the connecting reinforcing bars are installed at about half the pavement thickness, so that the structural reinforcing bars are supported to hold them. A stand different from the spacer is used (for example, Patent Document 1).

しかし、全ての連結用鉄筋を定位置に精度よく配置することは甚だ困難で、コンクリート打設時においてかかる連結用鉄筋がコンクリート内に全て埋没して後施工のコンクリート版との連結に支障をきたすことがある。   However, it is extremely difficult to place all the connecting rebars accurately in place, and when connecting concrete, all the connecting rebars are buried in the concrete, which hinders the connection with the concrete slabs after construction. Sometimes.

そこで、上記特許文献1では、コンクリート打設前に連結用鉄筋の一端雄ねじ部にカプラを装着しておき、そのカプラをコンクリート硬化後に取り外して当該連結用鉄筋の一端を後施工の連結用鉄筋と連結可能に露出させるようにしている。   Therefore, in Patent Document 1, a coupler is attached to one end male thread portion of a connecting reinforcing bar before placing concrete, and the coupler is removed after the concrete is hardened so that one end of the connecting reinforcing bar is connected to a connecting reinforcing bar for post-installation. It is exposed so that it can be connected.

しかしながら、特許文献1でもカプラの端面がコンクリート型枠に突き当たる状態で連結用鉄筋を整列させなければならず、その作業に多くの時間と労力を費やしてしまうという問題がある。   However, even in Patent Document 1, it is necessary to align the connecting reinforcing bars in a state where the end face of the coupler hits the concrete formwork, and there is a problem that much time and labor are spent on the work.

また、特許文献1によれば、カプラの取り外しによって連結用鉄筋同士の連結が可能とされるものの、多数の連結用鉄筋から一つずつカプラを取り外す作業は容易なことではない。   According to Patent Document 1, although it is possible to connect the connecting reinforcing bars by removing the couplers, it is not easy to remove the couplers one by one from a large number of connecting reinforcing bars.

そこで本出願人は実用新案登録第3140674号を提案し、設置作業の容易化、迅速化を図った。   Therefore, the present applicant has proposed Utility Model Registration No. 3140673, which facilitates and speeds up the installation work.

特開平10−195810号公報JP-A-10-195810 実用新案登録第3140674号公報Utility Model Registration No. 3140674

本願考案は上記実用新案登録のさらなる改良であり、かつ、適用範囲をさらに拡大したものであり、コンクリート舗装を含め、鉄筋コンクリート構造物の構築に際し、連結用鉄筋の位置決め作業の容易化、迅速化を図り、作業効率の向上を図ることを目的とする。   The present invention is a further improvement of the above-mentioned utility model registration and further expands the scope of application, and facilitates and speeds up the positioning work of connecting reinforcing bars when constructing reinforced concrete structures including concrete pavements. The purpose is to improve work efficiency.

上記目的達成のため、本願考案による鉄筋保持具は、
縦筋および横筋を格子状に組み上げてなる構造用鉄筋とともにコンクリート内に埋設される異形棒鋼からなる連結用鉄筋を保持する鉄筋保持具であって、
上記連結用鉄筋は棒状の鋼材の外周にリング状の山部が多数突設されるとともに、対向する面に軸の長手方向に沿って上記山部間を連接する稜線部が突設されてなり、
所定の長さを有して少なくとも隣り合う2つの縦筋の間に架け渡される梁部を有するとともに、該梁部の両端部に上記連結用鉄筋を支持する支持部が対設され、
上記支持部に貫通孔が設けられ、
該貫通孔は上記連結用鉄筋が挿通される程度の上記山部より若干大なる孔からなる基本孔と、該基本孔の下部の下方に連続する付加孔とからなり、上記付加孔が上記連結用鉄筋の内周に形成される谷部に当接する当接部及び上記稜線部を収納する収納部を有することを特徴とする。
また、上記貫通孔が上記連結用鉄筋が挿通される程度の上記山部より若干径大の円形孔からなる基本孔と、該基本孔の下部の下方に連続する上記谷部より若干径小の第2の孔と、該第2の孔の下部の下方に連続する上記稜線部を収納する第3の孔とからなることを特徴とする。
また、上記貫通孔が上記連結用鉄筋が挿通される程度の上記山部より若干径大の円形孔からなる基本孔と、該基本孔の下部の下方に連続する上記基本孔より径小の第2の孔とからなり、上記基本孔と上記第2の孔との連接点に狭窄部が形成され、該狭窄部にて上記谷部に当接されるとともに、上記第2の孔の下部に上記稜線部が収納されることを特徴とする。
また、上記貫通孔が上記支持部の一部を切欠した切欠部を有し、該切欠部は下部を切り欠いた円形状に形成され、下部に形成される狭窄部にて上記谷部に当接されるとともに、上記稜線部が上記切欠部の下方に突出することを特徴とする。
To achieve the above purpose, the reinforcing bar holder according to the present invention is
A reinforcing bar holder for holding a connecting reinforcing bar made of deformed bar steel embedded in concrete together with a structural reinforcing bar formed by assembling vertical and horizontal bars in a grid,
The connecting rebar has a large number of ring-shaped ridges projecting on the outer periphery of a rod-shaped steel material, and ridges connecting the ridges along the longitudinal direction of the shaft on the opposing surface. ,
Having a beam portion spanned between at least two adjacent vertical bars having a predetermined length, and supporting portions for supporting the connecting reinforcing bars at opposite ends of the beam section,
A through hole is provided in the support part,
The through hole is composed of a basic hole made of a hole slightly larger than the peak portion to which the connecting reinforcing bar is inserted, and an additional hole continuous below the basic hole, and the additional hole is connected to the connecting hole. It has the contact part which contact | abuts the trough part formed in the inner periphery of a reinforcing bar, and the accommodating part which accommodates the said ridgeline part, It is characterized by the above-mentioned.
In addition, the through hole has a basic hole made of a circular hole slightly larger in diameter than the peak portion to which the connecting reinforcing bar is inserted, and a diameter slightly smaller than the valley portion continuous below the basic hole. It consists of a 2nd hole and the 3rd hole which accommodates the said ridgeline part which continues under the lower part of this 2nd hole, It is characterized by the above-mentioned.
Further, the through hole has a basic hole made of a circular hole slightly larger in diameter than the peak portion to which the connecting rebar is inserted, and a basic hole having a diameter smaller than that of the basic hole continuing below the basic hole. The narrow hole is formed at the continuous contact point between the basic hole and the second hole, and is in contact with the valley at the narrow hole, and at the lower part of the second hole. The ridge line portion is housed.
In addition, the through hole has a cutout part in which a part of the support part is cut out, the cutout part is formed in a circular shape with a lower part cut out, and the narrowed part formed in the lower part contacts the trough part. The ridgeline part protrudes below the notch part while being in contact.

異形棒鋼からなる連結用鉄筋は、支持部の貫通孔に挿入された後、適正位置にて解放されると自重により降下し、これにより、稜線部が付加孔の収納部に収納されるとともに、谷部が当接部に当接して安定する。   The connecting bar made of deformed steel bar is inserted into the through hole of the support part and then lowered by its own weight when released at an appropriate position, whereby the ridge line part is stored in the storage part of the additional hole, The trough is in contact with the abutment and stabilized.

かかる位置決め作業は簡易であり、容易であり、かつ迅速であるため、コンクリート舗装を含め、鉄筋コンクリート構造物の構築に際し、作業効率の向上を図ることができる。   Since such positioning work is simple, easy, and quick, it is possible to improve work efficiency when constructing a reinforced concrete structure including concrete pavement.

また、連結用鉄筋は稜線部と谷部という凹凸部分が貫通孔に両持ち状態で安定的に支持・固定されるから、がたつきがなく、鉄筋コンクリート構造物の高さ保持やコンクリート強度の向上に資する効果がある。   In addition, since the connecting rebars are supported and fixed stably in the through hole with the uneven parts of the ridgeline and troughs, there is no rattling, maintaining the height of the reinforced concrete structure and improving the concrete strength There is an effect to contribute to.

本願考案による鉄筋保持具の実施の形態を示す斜視図である。It is a perspective view which shows embodiment of the reinforcing bar holder by this invention device. (A)は本願考案による鉄筋保持具に使用される連結用鉄筋を示す正面図、(B)は(A)の右側面図である。(A) is a front view which shows the connection reinforcing bar used for the reinforcing bar holder by this invention, (B) is a right view of (A). (A)は本願考案による鉄筋保持具の支持部の一実施例を示す拡大正面図、(B)は連結用鉄筋を保持した状態における(A)の一部省略正面図である。(A) is an enlarged front view which shows one Example of the support part of the reinforcing bar holder by this invention, (B) is a partially abbreviated front view of (A) in the state holding the connecting reinforcing bar. (A)は本願考案による鉄筋保持具の支持部のさらに他の実施例を示す拡大正面図、(B)は連結用鉄筋を保持した状態における(A)の一部省略正面図である。(A) is an enlarged front view showing still another embodiment of the support portion of the reinforcing bar holder according to the present invention, and (B) is a partially omitted front view of (A) in a state where the connecting reinforcing bar is held. (A)は本願考案による鉄筋保持具の支持部のさらに他の実施例を示す拡大正面図、(B)は連結用鉄筋を保持した状態における(A)の一部省略正面図である。(A) is an enlarged front view showing still another embodiment of the support portion of the reinforcing bar holder according to the present invention, and (B) is a partially omitted front view of (A) in a state where the connecting reinforcing bar is held. (A)は本願考案による鉄筋保持具の支持部のさらに他の実施例を示す拡大正面図、(B)は連結用鉄筋を保持した状態における(A)の一部省略正面図である。(A) is an enlarged front view showing still another embodiment of the support portion of the reinforcing bar holder according to the present invention, and (B) is a partially omitted front view of (A) in a state where the connecting reinforcing bar is held. (A)は本願考案による鉄筋保持具の支持部のさらに他の実施例を示す拡大正面図、(B)は連結用鉄筋を保持した状態における(A)の一部省略正面図である。(A) is an enlarged front view showing still another embodiment of the support portion of the reinforcing bar holder according to the present invention, and (B) is a partially omitted front view of (A) in a state where the connecting reinforcing bar is held. (A)は本願考案による鉄筋保持具の支持部のさらに他の実施例を示す拡大正面図、(B)は連結用鉄筋を保持した状態における(A)の一部省略正面図である。(A) is an enlarged front view showing still another embodiment of the support portion of the reinforcing bar holder according to the present invention, and (B) is a partially omitted front view of (A) in a state where the connecting reinforcing bar is held. 本願考案に使用される連結用鉄筋の他の例を示す正面図である。It is a front view which shows the other example of the connecting reinforcing bar used for this invention device. 本願考案による鉄筋保持具の使用例を示す概略平面図である。It is a schematic plan view which shows the usage example of the reinforcing bar holder by this invention device. 図10の一部拡大断面図である。It is a partially expanded sectional view of FIG.

次に、実施の形態を示す図面に基づき本願考案による鉄筋保持具1をさらに詳しく説明する。なお、便宜上同一の機能を奏する部分には同一の符号を付してその説明を省略する。   Next, the reinforcing bar holder 1 according to the present invention will be described in more detail with reference to the drawings showing embodiments. For convenience, portions having the same function are denoted by the same reference numerals and description thereof is omitted.

2は連結用鉄筋5を支持する金属板からなる支持部であり、梁部4の両端に対向して設けられる、該支持部2には後に詳述する貫通孔3が設けられる。上記連結用鉄筋5は棒状の鋼材6の外周にリング状の山部7が多数突設されるとともに、対向する面に軸の長手方向に沿って上記山部7間を連接する稜線部8が突設されてなる。9は上記連結用鉄筋5の山部7でない内周に形成される谷部である。上記連結用鉄筋5はかかる異形棒鋼であり、縦筋10aおよび横筋10bを格子状に組み上げてなる構造用鉄筋10とともにコンクリート内に埋設される。上記梁部4は所定の長さを有する金属板からなり、少なくとも隣り合う2つの縦筋10aの間に架け渡される。上記貫通孔3は上記連結用鉄筋5が挿通される程度の上記山部7より若干大なる孔からなる基本孔11と、該基本孔の下部の下方に連続する付加孔12とからなる。該付加孔12は上記連結用鉄筋5の内周に形成される谷部9に当接する当接部及び上記稜線部を収納する収納部を有する。   Reference numeral 2 denotes a support portion made of a metal plate that supports the connecting rebar 5. The support portion 2 is provided opposite to both ends of the beam portion 4, and the support portion 2 is provided with a through hole 3 to be described in detail later. The connecting rebar 5 has a large number of ring-shaped ridges 7 projecting from the outer periphery of a rod-shaped steel material 6, and ridge line portions 8 connecting the ridges 7 along the longitudinal direction of the shaft on opposite surfaces. Protruded. Reference numeral 9 denotes a trough formed on the inner periphery which is not the peak 7 of the connecting rebar 5. The connecting rebar 5 is such a deformed steel bar, and is embedded in the concrete together with the structural rebar 10 formed by assembling the vertical bars 10a and the horizontal bars 10b in a lattice shape. The beam portion 4 is made of a metal plate having a predetermined length, and is spanned between at least two adjacent vertical bars 10a. The through-hole 3 is composed of a basic hole 11 made of a hole slightly larger than the peak portion 7 to the extent that the connecting rebar 5 is inserted, and an additional hole 12 continuing below the basic hole. The additional hole 12 has an abutting portion that abuts against a trough 9 formed on the inner periphery of the connecting rebar 5 and a storage portion that stores the ridge line portion.

図3乃至図8に上記支持部2の具体的な実施例を示す。図3は貫通孔3が3個の円形の孔からなる場合である。この場合基本孔11は上記連結用鉄筋5が挿通される程度の上記山部7より若干径大の円形孔からなる。付加孔12は、該基本孔11の下部の下方に連続する上記谷部9より若干径小の第2の孔13と、該第2の孔13の下部の下方に連続する上記稜線部8を収納する第3の孔14とから構成され、上記連結用鉄筋5の保持状態において、上記第2の孔13が谷部9に当接されるとともに、上記稜線部8が上記第3の孔14に収納される。   3 to 8 show specific examples of the support 2. FIG. 3 shows a case where the through hole 3 is composed of three circular holes. In this case, the basic hole 11 is a circular hole having a diameter slightly larger than the peak portion 7 to which the connecting rebar 5 is inserted. The additional hole 12 includes a second hole 13 that is slightly smaller in diameter than the trough 9 that is continuous below the bottom of the basic hole 11, and the ridge line 8 that is continuous below the bottom of the second hole 13. The second hole 13 is brought into contact with the valley portion 9 and the ridge line portion 8 is in contact with the third hole 14 in the holding state of the connecting reinforcing bar 5. It is stored in.

図4は貫通孔3が2個の円形の孔からなる場合である。この場合基本孔11は上記連結用鉄筋5が挿通される程度の上記山部7より若干径大の円形孔からなる。付加孔12は、該基本孔11の下部の下方に連続する上記基本孔11より径小の第2の孔17からなり、上記基本孔11と上記第2の孔17との連接点に狭窄部18が形成される。そしてこの狭窄部18にて上記谷部9に当接されるとともに、上記第2の孔17の下部に上記稜線部8が収納される。   FIG. 4 shows a case where the through hole 3 is composed of two circular holes. In this case, the basic hole 11 is a circular hole having a diameter slightly larger than the peak portion 7 to which the connecting rebar 5 is inserted. The additional hole 12 includes a second hole 17 having a diameter smaller than that of the basic hole 11 continuous below the lower portion of the basic hole 11, and a constricted portion is formed at a continuous contact point between the basic hole 11 and the second hole 17. 18 is formed. The narrow portion 18 is brought into contact with the valley portion 9, and the ridge line portion 8 is accommodated in the lower portion of the second hole 17.

図5は鉄筋保持具1が方形板からなり、貫通孔3が支持部2の下辺の一部を切欠した切欠部22からなる場合である。該切欠部22は下部を切り欠いた円形状に形成され、下部に形成される狭窄部23にて谷部9に当接されるとともに、上記稜線部8が上記切欠部23の下方に突出する。   FIG. 5 shows a case where the reinforcing bar holder 1 is made of a rectangular plate, and the through hole 3 is made of a notch portion 22 in which a part of the lower side of the support portion 2 is notched. The notch portion 22 is formed in a circular shape with a lower portion cut out, abuts against the valley portion 9 at a narrowed portion 23 formed in the lower portion, and the ridge line portion 8 protrudes below the notch portion 23. .

図6は貫通孔3が1個の円形の孔と1個の三角形の孔からなる場合である。この場合基本孔11は上記連結用鉄筋5が挿通される程度の上記山部7より若干径大の円形孔からなる。付加孔12は、該基本孔11の下部の下方に連続する二等辺三角形の孔15とからなり、三角形孔15の頂点部15aが下方に位置し、上記連結用鉄筋5の保持状態において、三角形孔15の斜辺部15bが谷部9に当接されるとともに、上記稜線部8が頂点部15aに収納される。   FIG. 6 shows a case where the through hole 3 is composed of one circular hole and one triangular hole. In this case, the basic hole 11 is a circular hole having a diameter slightly larger than the peak portion 7 to which the connecting rebar 5 is inserted. The additional hole 12 includes an isosceles triangular hole 15 continuing below the lower portion of the basic hole 11, and the apex portion 15 a of the triangular hole 15 is located below, and in the holding state of the connecting reinforcing bar 5, The oblique side portion 15b of the hole 15 is brought into contact with the valley portion 9, and the ridge line portion 8 is accommodated in the vertex portion 15a.

図7は貫通孔3が上記連結用鉄筋5が挿通される程度の上記山部7より若干大なる方形の孔からなる基本孔11と、該基本孔11の下部の下方に連続する基本孔11よりも小さい他の方形の孔からなる第2方形孔19とからなり、上記基本孔11と上記第2方形孔19との連接点に狭窄部20が形成される。そしてこの狭窄部20にて上記谷部9に当接されるとともに、上記第2方形孔19の下部に上記稜線部8が収納される。   FIG. 7 shows a basic hole 11 consisting of a rectangular hole that is slightly larger than the peak portion 7 through which the connecting rebar 5 is inserted, and a basic hole 11 that continues below the basic hole 11. A narrowed portion 20 is formed at the continuous contact point between the basic hole 11 and the second square hole 19. The narrowed portion 20 is brought into contact with the valley portion 9, and the ridge line portion 8 is accommodated in the lower portion of the second rectangular hole 19.

図8は上記連結用鉄筋5が挿通される程度の上記山部7より若干大なる方形の孔からなり、上記孔を菱形に配する場合である。この場合、この菱形孔21が基本孔及び付加孔を兼ねるものであり、菱形孔21の下部の斜辺部21aにて上記谷部9に当接されるとともに、最下端の頂点部21bに上記稜線部8が収納される。   FIG. 8 shows a case where the hole is formed in a rhombus, which is made of a rectangular hole slightly larger than the peak portion 7 to the extent that the connecting rebar 5 is inserted. In this case, the rhomboid hole 21 serves as a basic hole and an additional hole, and is in contact with the trough 9 at the hypotenuse 21a at the bottom of the rhomboid 21 and the ridgeline at the apex 21b at the lowest end. The part 8 is stored.

次に位置合わせの仕方について説明する。図3の場合、まず、基本孔11に沿って異形棒鋼からなる連結用鉄筋5を支持部2の貫通孔3に挿入する。両支持部2に連結用鉄筋5を載置した後、回転させて稜線部8を上下の正位置にして自重により降下させる。しかるときは、自重により、稜線部8は第3の孔14に収納され、谷部9は第2の孔13に当接して安定する。よって連結用鉄筋5の位置決めを簡単かつ迅速に行うことができる。また連結用鉄筋5は稜線部8と谷部9という凹凸部分が貫通孔3に両持ち状態で安定的に支持・固定されるから、がたつきがなく、鉄筋コンクリート構造物(図示せず)の高さ保持やコンクリート強度の向上に資する。   Next, the alignment method will be described. In the case of FIG. 3, first, the connecting rebar 5 made of deformed steel bar is inserted into the through hole 3 of the support portion 2 along the basic hole 11. After the connecting reinforcing bars 5 are placed on both the support parts 2, the connecting rebars 5 are rotated to bring the ridge line part 8 into the upper and lower normal positions and are lowered by its own weight. When appropriate, the ridge line portion 8 is accommodated in the third hole 14 due to its own weight, and the valley portion 9 comes into contact with the second hole 13 and is stabilized. Therefore, positioning of the connecting reinforcing bar 5 can be performed easily and quickly. Further, since the connecting reinforcing bars 5 are stably supported and fixed in the state where the ridges 8 and troughs 9 are supported in a supported state in the through holes 3, there is no backlash, and the reinforced concrete structure (not shown) Contributes to maintaining height and improving concrete strength.

図4の場合、まず、基本孔11に沿って異形棒鋼からなる連結用鉄筋5を支持部2の貫通孔3に挿入する。両支持部2に連結用鉄筋5を載置した後、回転させて稜線部8を上下の正位置にして自重により降下させる。しかるときは、自重により、稜線部8は第2の孔17の底部に収納され、谷部9は基本孔11と第2の孔17との連接点に形成される狭窄部18に当接して安定する。よって連結用鉄筋5の位置決めを簡単かつ迅速に行うことができる。また連結用鉄筋5は稜線部8と谷部9という凹凸部分が貫通孔3に両持ち状態で安定的に支持・固定されるから、がたつきがなく、鉄筋コンクリート構造物(図示せず)の高さ保持やコンクリート強度の向上に資する。   In the case of FIG. 4, first, a connecting rebar 5 made of deformed steel bar is inserted into the through hole 3 of the support portion 2 along the basic hole 11. After the connecting reinforcing bars 5 are placed on both the support parts 2, the connecting rebars 5 are rotated to bring the ridge line part 8 into the upper and lower normal positions and are lowered by its own weight. When this occurs, the ridgeline portion 8 is housed in the bottom of the second hole 17 due to its own weight, and the valley portion 9 abuts against the constricted portion 18 formed at the continuous contact point between the basic hole 11 and the second hole 17. Stabilize. Therefore, positioning of the connecting reinforcing bar 5 can be performed easily and quickly. Further, since the connecting reinforcing bars 5 are stably supported and fixed in the state where the ridges 8 and troughs 9 are supported in a supported state in the through holes 3, there is no backlash, and the reinforced concrete structure (not shown) Contributes to maintaining height and improving concrete strength.

図5の場合、まず、切欠部22に沿って異形棒鋼からなる連結用鉄筋5を支持部2の貫通孔3に挿入する。両支持部2に連結用鉄筋5を載置した後、回転させて稜線部8を上下の正位置にして自重により降下させる。しかるときは、自重により、稜線部8は上記切欠部22の下方に突出し、谷部9は狭窄部23に係止されて安定する。よって連結用鉄筋5の位置決めを簡単かつ迅速に行うことができる。また連結用鉄筋5は稜線部8と谷部9という凹凸部分が貫通孔3に両持ち状態で安定的に支持・固定されるから、がたつきがなく、鉄筋コンクリート構造物(図示せず)の高さ保持やコンクリート強度の向上に資する。また、この実施例の場合は、狭窄部23の切欠幅より、連結用鉄筋5を回転させて稜線部8を上下の正位置に合わせるときの正位置の許容角度範囲が広くなり、作業効率が向上する。   In the case of FIG. 5, first, the connecting rebar 5 made of deformed steel bar is inserted into the through hole 3 of the support portion 2 along the notch portion 22. After the connecting reinforcing bars 5 are placed on both the support parts 2, the connecting rebars 5 are rotated to bring the ridge line part 8 into the upper and lower normal positions and are lowered by its own weight. When appropriate, the ridgeline portion 8 protrudes below the cutout portion 22 due to its own weight, and the trough portion 9 is locked to the narrowed portion 23 and stabilized. Therefore, positioning of the connecting reinforcing bar 5 can be performed easily and quickly. Further, since the connecting reinforcing bars 5 are stably supported and fixed in the state where the ridges 8 and troughs 9 are supported in a supported state in the through holes 3, there is no backlash, and the reinforced concrete structure (not shown) Contributes to maintaining height and improving concrete strength. Further, in the case of this embodiment, the allowable angle range of the normal position when the connecting reinforcing bar 5 is rotated and the ridge line portion 8 is aligned with the upper and lower normal positions becomes wider than the notch width of the narrowed portion 23, and the working efficiency is increased. improves.

図6の場合、まず、基本孔11に沿って異形棒鋼からなる連結用鉄筋5を支持部2の貫通孔3に挿入する。両支持部2に連結用鉄筋5を載置した後、回転させて稜線部8を上下の正位置にして自重により降下させる。しかるときは、自重により、稜線部8は三角形孔15の頂点部15aに収納され、谷部9は斜辺部15bに当接して安定する。よって連結用鉄筋5の位置決めを簡単かつ迅速に行うことができる。また連結用鉄筋5は稜線部8と谷部9という凹凸部分が貫通孔3に両持ち状態で安定的に支持・固定されるから、がたつきがなく、鉄筋コンクリート構造物(図示せず)の高さ保持やコンクリート強度の向上に資する。   In the case of FIG. 6, first, the connecting rebar 5 made of deformed steel bar is inserted into the through hole 3 of the support portion 2 along the basic hole 11. After the connecting reinforcing bars 5 are placed on both the support parts 2, the connecting rebars 5 are rotated to bring the ridge line part 8 into the upper and lower normal positions and are lowered by its own weight. When appropriate, the ridge line portion 8 is accommodated in the apex portion 15a of the triangular hole 15 by its own weight, and the trough portion 9 comes into contact with the oblique side portion 15b and is stabilized. Therefore, positioning of the connecting reinforcing bar 5 can be performed easily and quickly. Further, since the connecting reinforcing bars 5 are stably supported and fixed in the state where the ridges 8 and troughs 9 are supported in a supported state in the through holes 3, there is no backlash, and the reinforced concrete structure (not shown) Contributes to maintaining height and improving concrete strength.

図7の場合、まず、切欠部22に沿って異形棒鋼からなる連結用鉄筋5を支持部2の貫通孔3に挿入する。両支持部2に連結用鉄筋5を載置した後、回転させて稜線部8を上下の正位置にして自重により降下させる。しかるときは、自重により、稜線部8は第2方形孔19の底部に収納され、谷部9は基本孔11と第2方形孔19との連接点に形成される狭窄部20に当接して安定する。よって連結用鉄筋5の位置決めを簡単かつ迅速に行うことができる。また連結用鉄筋5は稜線部8と谷部9という凹凸部分が貫通孔3に両持ち状態で安定的に支持・固定されるから、がたつきがなく、鉄筋コンクリート構造物(図示せず)の高さ保持やコンクリート強度の向上に資する。また、この実施例の場合は、第2方形孔19の形状より、連結用鉄筋5を回転させて稜線部8を上下の正位置に合わせるときの正位置の許容範囲が広くなり、作業効率が向上する。   In the case of FIG. 7, first, the connecting rebar 5 made of deformed steel bar is inserted into the through hole 3 of the support portion 2 along the notch portion 22. After the connecting reinforcing bars 5 are placed on both the support parts 2, the connecting rebars 5 are rotated to bring the ridge line part 8 into the upper and lower normal positions and are lowered by its own weight. When this occurs, the ridgeline portion 8 is housed in the bottom of the second rectangular hole 19 due to its own weight, and the valley portion 9 abuts against the constricted portion 20 formed at the continuous contact point between the basic hole 11 and the second rectangular hole 19. Stabilize. Therefore, positioning of the connecting reinforcing bar 5 can be performed easily and quickly. Further, since the connecting reinforcing bars 5 are stably supported and fixed in the state where the ridges 8 and troughs 9 are supported in a supported state in the through holes 3, there is no backlash, and the reinforced concrete structure (not shown) Contributes to maintaining height and improving concrete strength. In the case of this embodiment, the allowable range of the normal position when the connecting reinforcing bar 5 is rotated and the ridge line portion 8 is aligned with the upper and lower normal positions is wider than the shape of the second rectangular hole 19, and the work efficiency is increased. improves.

図8の場合、まず、菱形孔21に沿って異形棒鋼からなる連結用鉄筋5を支持部2の貫通孔3に挿入する。両支持部2に連結用鉄筋5を載置した後、回転させて稜線部8を上下の正位置にして自重により降下させる。しかるときは、自重により、稜線部8は菱形孔21の底部に収納され、谷部9は上記菱形孔21の下部の斜辺部21aに当接して安定する。よって連結用鉄筋5の位置決めを簡単かつ迅速に行うことができる。また連結用鉄筋5は稜線部8と谷部9という凹凸部分が貫通孔3に両持ち状態で安定的に支持・固定されるから、がたつきがなく、鉄筋コンクリート構造物(図示せず)の高さ保持やコンクリート強度の向上に資する。   In the case of FIG. 8, first, the connecting rebar 5 made of a deformed steel bar is inserted into the through hole 3 of the support portion 2 along the rhombic hole 21. After the connecting reinforcing bars 5 are placed on both the support parts 2, the connecting rebars 5 are rotated to bring the ridge line part 8 into the upper and lower normal positions and are lowered by its own weight. When appropriate, the ridgeline portion 8 is housed in the bottom of the rhomboid hole 21 by its own weight, and the valley portion 9 abuts on the hypotenuse portion 21a below the rhombus hole 21 and is stabilized. Therefore, positioning of the connecting reinforcing bar 5 can be performed easily and quickly. Further, since the connecting reinforcing bars 5 are stably supported and fixed to the through-holes 3 with the concavo-convex portions of the ridge line portions 8 and the valley portions 9, there is no backlash, and the reinforced concrete structure (not shown) Contributes to maintaining height and improving concrete strength.

次に図10及び図11に基づき、上記構成の鉄筋保持具1が鉄筋コンクリート構造物に適用される場合を説明する。図示例の場合の鉄筋コンクリート構造物はコンクリート舗装面を示す。この場合構造用鉄筋10は複数条の縦筋10aおよび横筋10bを用い、コンクリート打設面(本例において路盤)に沿って格子状に組み上げられ、路盤上に配置される図示せぬ鉄筋スペーサにより所定の高さに支持されている。縦筋10aおよび横筋10bは、所定の長さを有する棒鋼(例えば、異形棒鋼)であり、それらは互いに直交して両者の交差部分が結束線(図示省略)などにて結合される。本例において、縦筋10aの間隔(ピッチ)は150mm、横筋10bの間隔(ピッチ)は300mmを標準としている。   Next, based on FIG.10 and FIG.11, the case where the reinforcing bar holder 1 of the said structure is applied to a reinforced concrete structure is demonstrated. The reinforced concrete structure in the illustrated example shows a concrete pavement surface. In this case, the structural reinforcing bar 10 uses a plurality of vertical reinforcing bars 10a and horizontal reinforcing bars 10b, and is assembled in a lattice shape along the concrete placement surface (in this example, the roadbed), and by a reinforcing bar spacer (not shown) disposed on the roadbed. It is supported at a predetermined height. The vertical bars 10a and the horizontal bars 10b are steel bars (for example, deformed steel bars) having a predetermined length, and they are orthogonal to each other and their intersections are connected by a binding wire (not shown). In this example, the interval (pitch) between the vertical stripes 10a is 150 mm, and the interval (pitch) between the horizontal stripes 10b is 300 mm as a standard.

上記構造用鉄筋10上には、その一端縁に沿って上記鉄筋保持具1が複数配置される。本例において、各鉄筋保持具1は、その梁部4が横筋10bに平行して複数条(図示例において2列)の縦筋10aの間に架け渡される。そして、梁部4の両端から路盤に向けて垂下する左右一対の支持部2には、貫通孔3に上記連結用鉄筋5が挿入され、該連結用鉄筋5がその軸方向(横筋10bの長さ方向に同じ)に簡易固定され水平状に支持される。連結用鉄筋5の固定に当たっては、前述したように、連結用鉄筋5を適宜に回動し稜線部8を上下の正位置にして自重により降下させると、自重により、稜線部8が付加孔の収納部に収納されるとともに、谷部が当接部に当接して安定するから結束線などの結束手段を要せずに所定位置に安定支持される。   On the structural reinforcing bar 10, a plurality of the reinforcing bar holders 1 are arranged along one end edge thereof. In this example, each reinforcing bar holder 1 has its beam portion 4 spanned between a plurality of vertical bars 10a (two rows in the illustrated example) parallel to the horizontal bars 10b. Then, in the pair of left and right support portions 2 that hang down from both ends of the beam portion 4 toward the roadbed, the connecting rebar 5 is inserted into the through-hole 3, and the connecting rebar 5 extends in the axial direction (the length of the horizontal bar 10 b). It is simply fixed in the same direction) and supported horizontally. In fixing the connecting rebar 5, as described above, when the connecting rebar 5 is appropriately rotated and the ridgeline portion 8 is moved to the normal position in the vertical direction and lowered by its own weight, the ridgeline portion 8 is formed in the additional hole by its own weight. In addition to being housed in the housing portion, the valley portion is in contact with the contact portion and is stabilized, so that it is stably supported at a predetermined position without requiring a binding means such as a binding wire.

上記連結用鉄筋5は、縦筋10aと同径もしくはそれよりも稍太い異形棒鋼(本例において直径22mm)であり、その一端にはソケット状のナット部材25が固着され、長さ500mmとなっている。ナット部材25の固着された連結用鉄筋5を図11に「連結用鉄筋5A」として表示する。該ナット部材25は構造用鉄筋10の外側に突出する状態で保持され、上記連結用鉄筋5を含む鉄筋構造物をコンクリート内に埋設するとき、ナット部材25のネジ孔がコンクリートにより塞がれないようにされる。   The connecting rebar 5 is a deformed steel bar (diameter 22 mm in this example) having the same diameter as the vertical bar 10a or thicker than the vertical bar 10a, and a socket-like nut member 25 is fixed to one end thereof to have a length of 500 mm. ing. The connecting reinforcing bar 5 to which the nut member 25 is fixed is displayed as “connecting reinforcing bar 5A” in FIG. The nut member 25 is held in a state of protruding to the outside of the structural reinforcing bar 10, and when the reinforcing bar structure including the connecting reinforcing bar 5 is embedded in the concrete, the screw hole of the nut member 25 is not blocked by the concrete. To be done.

図11において、26は路盤、27は路盤26の幅員方向片側に先行して施工されたコンクリート版、28はコンクリート版27の施工後に施工されたコンクリート版であり、その両舗装版27,28はその内部に埋設された連結用鉄筋5A,5Bにより連結されて連続性が確保されている。後施工のコンクリート舗装版28内に埋設される連結用鉄筋5Bは、その一端に雄ねじ部を有して他方の連結用鉄筋5Aの一端に固着されたナット部材25とねじ結合されている。   In FIG. 11, 26 is a roadbed, 27 is a concrete slab that has been constructed in advance on one side in the width direction of the roadbed 26, 28 is a concrete slab that has been constructed after the construction of the concrete slab 27, and both paving slabs 27, 28 are It is connected by connecting reinforcing bars 5A and 5B embedded in the inside thereof to ensure continuity. The connecting rebar 5B embedded in the concrete pavement plate 28 that is post-installed has a male screw portion at one end and is screw-coupled to a nut member 25 fixed to one end of the other connecting rebar 5A.

ここで、路盤26上を図11のようにコンクリート舗装するには、幅員方向片側を通行止めとし、他方側の通行を許容する。そして、通行止めとした片側の路盤26に沿ってその上部に縦筋10aおよび横筋10bを格子状に組み上げて構造用鉄筋10を構築し、その適宜位置に図示せぬ鉄筋スペーサを配置して該鉄筋スペーサで構造用鉄筋10を所定の高さに支持する。その後、路盤26の幅員方向中央部分(未施工の車両通行側)において、構造用鉄筋10上に鉄筋保持具1を上記した要領で配置した後、支持部2の貫通孔3に連結用鉄筋5を挿入してその一端に固着したナット部材25を構造用鉄筋10の配置領域より未施工の車両通行側に突出させる。後施工側の鉄筋構造物には一端に雄ねじ部を有する連結用鉄筋5Bを用い、これを先施工の舗装版27の側方に現れるナット部材25に螺入した状態でコンクリートの打設を行う。   Here, in order to pave the concrete on the roadbed 26 as shown in FIG. 11, the one side in the width direction is blocked and the other side is allowed to pass. Then, the reinforcing bars 10 are constructed by assembling the vertical bars 10a and the horizontal bars 10b in a lattice shape along the roadbed 26 on one side, which is closed, and a reinforcing bar spacer (not shown) is arranged at an appropriate position to arrange the reinforcing bars. The structural reinforcing bar 10 is supported at a predetermined height by the spacer. After that, the reinforcing bar holder 1 is arranged on the structural reinforcing bar 10 in the above-described manner at the center portion in the width direction of the roadbed 26 (unconstructed vehicle passage side), and then the connecting reinforcing bar 5 is inserted into the through hole 3 of the support portion 2. And the nut member 25 fixed to one end thereof is projected from the arrangement region of the structural reinforcing bar 10 to the unconstructed vehicle passage side. The reinforcing bar 5B having a male threaded portion at one end is used as the reinforcing bar structure on the post-construction side, and the concrete is placed in a state in which the reinforcing bar 5B is screwed into the nut member 25 that appears on the side of the pre-constructed pavement plate 27. .

本願考案による鉄筋保持具は上記実施の形態に限定されない。例えば、鉄筋保持具1の形状は任意である。また支持部2の形状も任意である。支持部2の基本孔11は円形であることが望ましいが、図7の実施例のように必ずしも円形孔でなくともよく、あるいは図5の実施例のように切欠部があってもよい。さらにまた、上記基本孔11及び上記付加孔12を図3及び図4に示すような複数の円形にすれば、連結用鉄筋5の位置決め作業を専門工ではなく普通の作業員によりなすことができるので作業コストの低減に寄与する。また図6の三角形孔は必ずしも二等辺三角形でなくてもよい。   The reinforcing bar holder according to the present invention is not limited to the above embodiment. For example, the shape of the reinforcing bar holder 1 is arbitrary. Moreover, the shape of the support part 2 is also arbitrary. Although the basic hole 11 of the support part 2 is preferably circular, it does not necessarily have to be a circular hole as in the embodiment of FIG. 7, or may have a notch as in the embodiment of FIG. Furthermore, if the basic hole 11 and the additional hole 12 are formed into a plurality of circular shapes as shown in FIGS. 3 and 4, the positioning work of the connecting reinforcing bars 5 can be performed by a normal worker instead of a specialist. Therefore, it contributes to the reduction of work cost. Further, the triangular holes in FIG. 6 are not necessarily an isosceles triangle.

貫通孔3は、図1に一点鎖線で示すように、鉄筋保持具1の中央部に設けることが望ましいが、上記実施例のように鉄筋保持具1の多少偏心した位置に設けられても実質上同等の作用効果を有する。また連結用鉄筋5の外周に形成されるリング状の山部7は、図9に示すように、実際は多少ずれて形成されることがあり、本願考案による鉄筋保持具はかかる連結用鉄筋5にも適用可である。   The through-hole 3 is desirably provided at the central portion of the reinforcing bar holder 1 as shown by a one-dot chain line in FIG. 1, but even if it is provided at a slightly eccentric position of the reinforcing bar holder 1 as in the above-described embodiment. Has the same effect as above. In addition, as shown in FIG. 9, the ring-shaped peak portion 7 formed on the outer periphery of the connecting rebar 5 may actually be slightly shifted, and the reinforcing bar holder according to the present invention is attached to the connecting rebar 5. Is also applicable.

本願考案による鉄筋保持具は、コンクリート舗装等の土木関係の他、広く鉄筋コンクリート構造物を用いる建築関係にも利用することができる。   The reinforcing bar holder according to the present invention can be used not only for civil engineering such as concrete pavement, but also widely for architectural relations using reinforced concrete structures.

1 鉄筋保持具
2 支持部
3 貫通孔
4 梁部
5 連結用鉄筋
5A 連結用鉄筋
5B 連結用鉄筋
6 鋼材
7 山部
8 稜線部
9 谷部
10 構造用鉄筋
10a 縦筋
10b 横筋
11 基本孔
12 付加孔
13 第2の孔
14 第3の孔
15 三角形孔
15a 頂点部
15b 斜辺部
17 第2の孔
18 狭窄部
19 第2方形孔
20 狭窄部
21 菱形孔
21a 斜辺部
21b 頂点部
22 切欠部
23 狭窄部
25 ナット部材
26 路盤
27 コンクリート舗装版
28 コンクリート舗装版
DESCRIPTION OF SYMBOLS 1 Reinforcing bar holder 2 Support part 3 Through-hole 4 Beam part 5 Connecting reinforcing bar 5A Connecting reinforcing bar 5B Connecting reinforcing bar 6 Steel 7 Mountain part 8 Ridge line part 9 Valley part 10 Structural reinforcing bar 10a Longitudinal bar 10b Horizontal bar 11 Basic hole 12 Addition Hole 13 Second hole 14 Third hole 15 Triangular hole 15a Apex part 15b Oblique side part 17 Second hole 18 Constriction part 19 Second square hole 20 Constriction part 21 Rhombus hole 21a Diagonal part 21b Vertex part 22 Notch part 23 Constriction Part 25 Nut member 26 Roadbed 27 Concrete paving plate 28 Concrete paving plate

Claims (4)

縦筋および横筋を格子状に組み上げてなる構造用鉄筋とともにコンクリート内に埋設される異形棒鋼からなる連結用鉄筋を保持する鉄筋保持具であって、
上記連結用鉄筋は棒状の鋼材の外周にリング状の山部が多数突設されるとともに、対向する面に軸の長手方向に沿って上記山部間を連接する稜線部が突設されてなり、
所定の長さを有して少なくとも隣り合う2つの縦筋の間に架け渡される梁部を有するとともに、該梁部の両端部に上記連結用鉄筋を支持する支持部が対設され、
上記支持部に貫通孔が設けられ、
該貫通孔は上記連結用鉄筋が挿通される程度の上記山部より若干大なる孔からなる基本孔と、該基本孔の下部の下方に連続する付加孔とからなり、上記付加孔が上記連結用鉄筋の内周に形成される谷部に当接する当接部及び上記稜線部を収納する収納部を有することを特徴とする鉄筋保持具。
A reinforcing bar holder for holding a connecting reinforcing bar made of deformed bar steel embedded in concrete together with a structural reinforcing bar formed by assembling vertical and horizontal bars in a grid,
The connecting rebar has a large number of ring-shaped ridges projecting on the outer periphery of a rod-shaped steel material, and ridges connecting the ridges along the longitudinal direction of the shaft on the opposite surface. ,
Having a beam portion spanned between at least two adjacent vertical bars having a predetermined length, and supporting portions for supporting the connecting reinforcing bars at opposite ends of the beam section,
A through hole is provided in the support part,
The through hole is composed of a basic hole made of a hole slightly larger than the peak portion to which the connecting reinforcing bar is inserted, and an additional hole continuous below the basic hole, and the additional hole is connected to the connecting hole. A reinforcing bar holder comprising an abutting portion that abuts a trough formed on an inner periphery of a reinforcing bar and a storage portion that stores the ridge line portion.
上記貫通孔が上記連結用鉄筋が挿通される程度の上記山部より若干径大の円形孔からなる基本孔と、該基本孔の下部の下方に連続する上記谷部より若干径小の第2の孔と、該第2の孔の下部の下方に連続する上記稜線部を収納する第3の孔とからなることを特徴とする請求項1記載の鉄筋保持具。   A basic hole made of a circular hole having a diameter slightly larger than the peak portion to which the connecting rebar is inserted, and a second diameter slightly smaller than the valley portion continuing below the basic hole. 2. The reinforcing bar holder according to claim 1, wherein the reinforcing bar holding member includes a third hole that accommodates the ridge line portion continuous below the lower portion of the second hole. 上記貫通孔が上記連結用鉄筋が挿通される程度の上記山部より若干径大の円形孔からなる基本孔と、該基本孔の下部の下方に連続する上記基本孔より径小の第2の孔とからなり、上記基本孔と上記第2の孔との連接点に狭窄部が形成され、該狭窄部にて上記谷部に当接されるとともに、上記第2の孔の下部に上記稜線部が収納されることを特徴とする請求項1記載の鉄筋保持具。   A basic hole formed of a circular hole having a diameter slightly larger than the peak portion through which the connecting rebar is inserted, and a second hole having a diameter smaller than the basic hole continuous below the basic hole. A narrowed portion is formed at a continuous contact point between the basic hole and the second hole, and is in contact with the valley portion at the narrowed portion, and the ridgeline is formed below the second hole. The reinforcing bar holder according to claim 1, wherein the part is stored. 上記貫通孔が上記支持部の一部を切欠した切欠部を有し、該切欠部は下部を切り欠いた円形状に形成され、下部に形成される狭窄部にて上記谷部に当接されるとともに、上記稜線部が上記切欠部の下方に突出することを特徴とする請求項1記載の鉄筋保持具。   The through-hole has a cutout part in which a part of the support part is cut out, the cutout part is formed in a circular shape with a lower part cut out, and is in contact with the valley part in a narrowed part formed in the lower part. The reinforcing bar holder according to claim 1, wherein the ridge line portion protrudes below the notch portion.
JP2009002621U 2009-04-22 2009-04-22 Rebar retainer Expired - Lifetime JP3151740U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019148154A (en) * 2018-02-28 2019-09-05 株式会社藤崎商会 Tie bar retainer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019148154A (en) * 2018-02-28 2019-09-05 株式会社藤崎商会 Tie bar retainer
JP7058004B2 (en) 2018-02-28 2022-04-21 株式会社藤崎商会 Tie bar holder

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