JP2021014693A - Reinforcement fastening metal fitting - Google Patents

Reinforcement fastening metal fitting Download PDF

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JP2021014693A
JP2021014693A JP2019128696A JP2019128696A JP2021014693A JP 2021014693 A JP2021014693 A JP 2021014693A JP 2019128696 A JP2019128696 A JP 2019128696A JP 2019128696 A JP2019128696 A JP 2019128696A JP 2021014693 A JP2021014693 A JP 2021014693A
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reinforcing bar
holding member
holding
spacer
metal fitting
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JP7311081B2 (en
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俊二 藤井
Shunji Fujii
俊二 藤井
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Okabe Co Ltd
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Okabe Co Ltd
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Abstract

To provide a reinforcement fastening metal fitting capable of collectively fastening the reinforcement and installing a spacer at one place and preventing the posture change of the installed spacer.SOLUTION: A reinforcement fastening metal fitting 1 for fastening a main reinforcement 4 and a reinforcing bar 5 which are arranged to cross each other in a superposed state, comprises: a first holding member 6 which is provided in a pair in an arrangement in which reinforcements are sandwiched at intersecting positions and in which a main reinforcement holding groove part 10 for holding the main reinforcement is formed; a second holding member 7 for holding the reinforcing bars; a fastener 8 for fastening the first holding member and the second holding member in the direction of superposing the reinforcements while avoiding the intersecting position; and a spacer 9 provided on the first holding member and regulating a separation distance from the main reinforcement.SELECTED DRAWING: Figure 5

Description

本発明は、鉄筋の緊結とスペーサの設置を一箇所で一括して行うことが可能であると共に、設置したスペーサの姿勢変化を防止することが可能な鉄筋緊結金具に関する。 The present invention relates to a reinforcing bar binding metal fitting that can collectively perform the binding of the reinforcing bar and the installation of the spacer at one place and can prevent the posture change of the installed spacer.

鉄筋組立体などで、交差して配筋される２本の鉄筋を重ね合わせた状態に緊締する鉄筋緊結金具として、例えば特許文献１が知られている。特許文献１の「鉄筋籠の固定金具」は、鉄筋籠の主筋及び補強筋を予め設定された複数の第２交叉部位において固定する第２固定金具として、主筋をその軸線方向の広範囲に亘って反補強筋側から連続的に拘束する断面略Ｕ字状の主筋用拘束部を有する主筋側拘束具と、補強筋をその軸線方向の広範囲に亘って反主筋側から連続的に拘束する断面略Ｕ字状の補強筋用拘束部を有する補強筋側拘束具と、両拘束具をその四隅に挿通されるボルトとナットとにより締結する締結具とを備えて構成されている。 Patent Document 1, for example, is known as a reinforcing bar binding metal fitting that tightens two reinforcing bars arranged at crossing each other in a superposed state in a reinforcing bar assembly or the like. The "reinforcing bar cage fixing bracket" of Patent Document 1 is a second fixing bracket for fixing the main reinforcing bar and the reinforcing bar of the reinforcing bar cage at a plurality of preset second crossing portions, and the main reinforcing bar is spread over a wide range in the axial direction thereof. Cross-section that continuously restrains from the anti-reinforcing bar side The main bar side restraint that has a U-shaped restraint for the main bar and the cross section that continuously restrains the reinforcing bar from the anti-main bar side over a wide range in the axial direction It is configured to include a reinforcing bar side restraint having a U-shaped restraining portion for reinforcing bars, and a fastener for fastening both restraints with bolts and nuts inserted into the four corners thereof.

また、鉄筋組立体に、コンクリート被り厚を確保するスペーサを取り付けるようにした技術として特許文献２が知られている。特許文献２の「鉄筋籠の無溶接スペーサー金具」は、鉄筋籠本体の周方向等間隔の４箇所において主筋の周方向外側部分をスペーサーの膨出部の立ち上がり部分と共に第１片の切欠穴に挿通して膨出部の倒れ方向から包持した状態で、主筋を鉄筋籠本体の内面側からスペーサーの近接側端部と共に包持したＵ字ボルトの螺子部を第２片のボルト挿通孔に挿通してナットで締結することで、Ｕ字ボルト及びナットの締め付けによって、第１片の切欠穴を主筋の周方向外側部分及びスペーサーの膨出部の立ち上がり部分に食い込ませながら、第２片をスペーサーの近接側端部と共に主筋に対し強固に固定するようにしている。 Further, Patent Document 2 is known as a technique for attaching a spacer for ensuring the concrete covering thickness to the reinforcing bar assembly. In Patent Document 2, "reinforcing bar cage non-welded spacer metal fittings", the outer portion in the circumferential direction of the main bar is made into a notch hole of the first piece together with the rising portion of the bulging portion of the spacer at four locations at equal intervals in the circumferential direction of the reinforcing bar cage body. With the main bar being inserted and held from the tilting direction of the bulging part, the screw part of the U-shaped bolt that holds the main bar from the inner surface side of the reinforcing bar cage body together with the adjacent end of the spacer is inserted into the bolt insertion hole of the second piece. By inserting and fastening with nuts, by tightening the U-shaped bolts and nuts, the second piece can be inserted into the notch hole of the first piece in the circumferential outer part of the main bar and the rising part of the bulging part of the spacer. It is firmly fixed to the main bar together with the adjacent end of the spacer.

特開２０１６−２９２３７号公報Japanese Unexamined Patent Publication No. 2016-29237 特開２０１５−２０６１９７号公報JP-A-2015-206197

背景技術から理解されるように、固定金具とスペーサは、それぞれ個別に別の場所に設けるようにしていたため、施工性が良くないという課題があった。 As can be understood from the background technology, since the fixing bracket and the spacer are individually provided in different places, there is a problem that the workability is not good.

また、杭かご鉄筋などの鉄筋組立体では、杭穴に吊り下げて建て込まれる。このとき、杭穴の内面にスペーサを当てた状態で建て込みが行われる。 In addition, in a reinforcing bar assembly such as a pile cage reinforcing bar, it is hung in a pile hole and built. At this time, the building is carried out with the spacer applied to the inner surface of the pile hole.

背景技術では、スペーサの近接側端部が主筋の外面に外接しているため、当該近接側端部が主筋上で回転してしまってスペーサが主筋に対し傾くなど、その姿勢が変化してしまうことが考えられ、スペーサとしての機能を果たせなくなってしまうおそれがあった。 In the background technology, since the close end of the spacer is circumscribed on the outer surface of the main bar, the close end of the spacer rotates on the main bar and the spacer tilts with respect to the main bar, and the posture changes. Therefore, there was a risk that the function as a spacer could not be fulfilled.

本発明は上記従来の課題に鑑みて創案されたものであって、鉄筋の緊結とスペーサの設置を一箇所で一括して行うことが可能であると共に、設置したスペーサの姿勢変化を防止することが可能な鉄筋緊結金具を提供することを目的とする。 The present invention has been devised in view of the above-mentioned conventional problems, and it is possible to collectively tighten the reinforcing bars and install the spacers at one place, and prevent the posture of the installed spacers from changing. It is an object of the present invention to provide a reinforcing bar binding metal fitting capable of the above.

本発明にかかる鉄筋緊結金具は、交差して配筋される２本の鉄筋を重ね合わせた状態に緊締する鉄筋緊結金具であって、２本の上記鉄筋を交差位置で挟む配置で一対一組で設けられ、一方の第１鉄筋を保持する第１鉄筋保持用溝部が形成された第１保持部材及び他方の第２鉄筋を保持するための第２保持部材と、交差位置を避けて、上記第１保持部材と上記第２保持部材とを上記第１及び第２鉄筋の重ね合わせ方向に締結する締結具と、上記第１保持部材に設けられ、上記第１鉄筋からの離隔距離を規定するスペーサとを備えたことを特徴とする。 The reinforcing bar binding metal fitting according to the present invention is a reinforcing bar binding metal fitting that tightens two reinforcing bars arranged at crossing each other in a superposed state, and is a one-to-one set in an arrangement in which the two reinforcing bars are sandwiched at an intersecting position. The first holding member and the second holding member for holding the other second reinforcing bar, which are provided in the above and have a groove for holding the first reinforcing bar for holding one of the first reinforcing bars. Fasteners for fastening the first holding member and the second holding member in the overlapping direction of the first and second reinforcing bars, and the first holding member are provided to define the separation distance from the first reinforcing bar. It is characterized by having a spacer.

前記第１保持部材には、前記第１鉄筋保持用溝部を窪ませて、前記第１鉄筋に面する凹部が形成されると共に、該凹部位置で該第１保持部材を貫通して、前記スペーサを挿通するための挿通孔が形成され、上記スペーサは、上記凹部に係止されつつ上記第１鉄筋が圧接される係止片部を有して、該第１鉄筋側から上記挿通孔に挿通されて上記第１保持部材に設けられることを特徴とする。 In the first holding member, the groove for holding the first reinforcing bar is recessed to form a recess facing the first reinforcing bar, and the spacer penetrates the first holding member at the recessed position. The spacer is formed with an insertion hole for inserting the first reinforcing bar, and the spacer has a locking piece portion to which the first reinforcing bar is pressure-welded while being locked to the recess, and is inserted into the insertion hole from the first reinforcing bar side. It is characterized in that it is provided in the first holding member.

前記第１保持部材には、前記第１鉄筋の長さ方向に沿って前記第１鉄筋保持用溝部を窪ませて、該第１鉄筋に面するスライド凹部が形成され、前記スペーサは、上記スライド凹部内へ挿抜可能にスライドされて、該スライド凹部に係止されつつ上記第１鉄筋が圧接される係止片部を有して、該係止片部を介して上記第１保持部材に設けられることを特徴とする。 In the first holding member, the groove for holding the first reinforcing bar is recessed along the length direction of the first reinforcing bar to form a slide recess facing the first reinforcing bar, and the spacer is the slide. It has a locking piece portion that is slidably slid into the recess and is locked in the slide recess while the first reinforcing bar is pressure-contacted, and is provided on the first holding member via the locking piece portion. It is characterized by being able to be.

前記第１保持部材には、上記第１鉄筋と反対側に、該第１鉄筋の外側で当該第１鉄筋と交差する向きに配筋される追加の鉄筋を位置決めする位置決め部が形成されることを特徴とする。 The first holding member is formed with a positioning portion on the opposite side of the first reinforcing bar to position additional reinforcing bars arranged on the outside of the first reinforcing bar in a direction intersecting with the first reinforcing bar. It is characterized by.

前記第１鉄筋保持用溝部は、前記第１保持部材側に面する前記第１鉄筋の周面に対してそれぞれ外接する複数の平坦面が連接されて形成されることを特徴とする。 The first reinforcing bar holding groove portion is characterized in that a plurality of flat surfaces circumscribing each other with respect to the peripheral surface of the first reinforcing bar facing the first holding member side are connected to each other.

前記第１保持部材には、前記第１鉄筋保持用溝部の両側に位置させて一対の板バネ部が形成され、これら板バネ部が前記第２保持部材と前記締結具で締結されることを特徴とする。 A pair of leaf spring portions are formed on the first holding member so as to be located on both sides of the first reinforcing bar holding groove portion, and these leaf spring portions are fastened to the second holding member by the fastener. It is a feature.

本発明にかかる鉄筋緊結金具にあっては、鉄筋の緊結とスペーサの設置を一箇所で一括して行うことができると共に、設置したスペーサの姿勢変化を防止することができる。 In the reinforcing bar binding metal fitting according to the present invention, the reinforcing bar can be fastened and the spacer can be installed at one place, and the posture of the installed spacer can be prevented from changing.

本発明に係る鉄筋緊結金具が適用された杭かご鉄筋を示す平面図である。It is a top view which shows the pile cage reinforcing bar to which the reinforcing bar binding metal fitting which concerns on this invention is applied. 本発明に係る鉄筋緊結金具の好適な一実施形態を示す、取付状態の斜視図である。It is a perspective view of the mounting state which shows one preferable embodiment of the reinforcing bar binding metal fitting which concerns on this invention. 図２に示した鉄筋緊結金具の取付状態の側面図である。It is a side view of the mounting state of the reinforcing bar binding metal fitting shown in FIG. 図２に示した鉄筋緊結金具の取付状態の正面図である。It is a front view of the mounting state of the reinforcing bar binding metal fitting shown in FIG. 図２に示した鉄筋緊結金具の取付状態の要部拡大平面図である。It is an enlarged plan view of the main part of the attached state of the reinforcing bar binding metal fitting shown in FIG. 図２に示した鉄筋緊結金具の構成要素である第１保持部材の斜視図である。It is a perspective view of the 1st holding member which is a component of the reinforcing bar binding metal fitting shown in FIG. 図６に示した第１保持部材を主筋保持用溝部の長さ方向から見た図である。FIG. 6 is a view of the first holding member shown in FIG. 6 as viewed from the length direction of the main bar holding groove portion. 図２に示した鉄筋緊結金具の構成要素である第２保持部材（補強筋１本用）を説明するための説明図である。It is explanatory drawing for demonstrating the 2nd holding member (for one reinforcing bar) which is a component element of the reinforcing bar binding metal fitting shown in FIG. 図２に示した鉄筋緊結金具の構成要素である第２保持部材（補強筋２本用）を説明するための説明図である。It is explanatory drawing for demonstrating the 2nd holding member (for 2 reinforcing bars) which is a component element of the reinforcing bar binding metal fitting shown in FIG. 図２に示した鉄筋緊結金具の構成要素であるスペーサの斜視図である。It is a perspective view of the spacer which is a component of the reinforcing bar binding metal fitting shown in FIG. 図６に示した第１保持部材に、図８または図９に示した第２保持部材を締結する様子を説明する説明図である。It is explanatory drawing explaining the state of fastening the 2nd holding member shown in FIG. 8 or 9 to the 1st holding member shown in FIG. 図２に示した鉄筋緊結金具であって、スペーサを図示省略して、帯筋の配筋状態を示す斜視図である。FIG. 2 is a perspective view showing a reinforcing bar binding state shown in FIG. 2 in which a spacer is not shown and the reinforcing bar is arranged. 本発明に係る鉄筋緊結金具の変形例を示す斜視図である。It is a perspective view which shows the modification of the reinforcing bar binding metal fitting which concerns on this invention. 図１３に示した変形例に適用されるスペーサを示す斜視図である。It is a perspective view which shows the spacer applied to the modification shown in FIG. 本発明に係る鉄筋緊結金具が適用される他の鉄筋組立体を示す平面図である。It is a top view which shows the other reinforcing bar assembly to which the reinforcing bar binding metal fitting which concerns on this invention is applied.

以下に、本発明にかかる鉄筋緊結金具の好適な実施形態を、添付図面を参照して詳細に説明する。図１は、本実施形態に係る鉄筋緊結金具１が適用される鉄筋組立体の一例として、杭穴２に吊り下げて建て込まれる杭かご鉄筋３を、上から見下ろした平面図である。 Hereinafter, preferred embodiments of the reinforcing bar binding fitting according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a plan view of a pile cage reinforcing bar 3 suspended from a pile hole 2 and built as an example of a reinforcing bar assembly to which the reinforcing bar binding metal fitting 1 according to the present embodiment is applied, looking down from above.

杭かご鉄筋３は、杭穴２の深さ方向に長い直線状の主筋４が、杭穴２の内周面に沿って間隔を隔てて環状配列で配筋されると共に、環状形態の補強筋５が、環状に配列された主筋４の内側に、杭穴２の深さ方向に沿って間隔を隔てて多段に配筋されて構成される。 In the pile cage reinforcing bar 3, linear main reinforcing bars 4 long in the depth direction of the pile hole 2 are arranged in an annular arrangement along the inner peripheral surface of the pile hole 2 at intervals, and reinforcing bars in an annular shape are arranged. 5 are arranged inside the main bars 4 arranged in an annular shape in multiple stages at intervals along the depth direction of the pile holes 2.

これら主筋４と補強筋５とは、杭かご鉄筋３に組み立てられるとき、図２〜図５に示すように、縦横に交差して重なり合うように配筋され、本実施形態の鉄筋緊結金具１によって、重ね合わせた状態で緊結される。 When the main reinforcing bars 4 and the reinforcing bars 5 are assembled to the pile cage reinforcing bars 3, as shown in FIGS. 2 to 5, the main reinforcing bars 4 and the reinforcing bars 5 are arranged so as to intersect and overlap each other in the vertical and horizontal directions, and are arranged by the reinforcing bar binding metal fitting 1 of the present embodiment. , Tightened in a superposed state.

本実施形態に係る鉄筋緊結金具１は主に、図６及び図７に示される、主筋４を保持するための第１保持部材６と、図８及び図９に示される、補強筋５を保持するための第２保持部材７と、これら第１保持部材６と第２保持部材７とを締結する締結具８と、図１０に示される、第１保持部材６に設けられるスペーサ９とから構成される。 The reinforcing bar binding metal fitting 1 according to the present embodiment mainly holds the first holding member 6 for holding the main reinforcing bar 4 shown in FIGS. 6 and 7, and the reinforcing bar 5 shown in FIGS. 8 and 9. It is composed of a second holding member 7 for fastening, a fastener 8 for fastening the first holding member 6 and the second holding member 7, and a spacer 9 provided on the first holding member 6 shown in FIG. Will be done.

鉄筋緊結金具１は、図１に示すように、主筋４と補強筋５とが交差する各交差位置それぞれに個別に配設される。 As shown in FIG. 1, the reinforcing bar binding metal fitting 1 is individually arranged at each intersection position where the main reinforcing bar 4 and the reinforcing bar 5 intersect.

第１保持部材６は、補強筋５側とは反対側から主筋４に向かって、第２保持部材７は、主筋４側とは反対側から補強筋５に向かって、これら主筋４と補強筋５とを、それらの交差位置で挟む配置で、互いに向かい合わせて一対一組で設けられる。 The first holding member 6 is directed toward the main bar 4 from the side opposite to the reinforcing bar 5 side, and the second holding member 7 is directed toward the reinforcing bar 5 from the side opposite to the main bar 4 side. 5 and 5 are provided in a one-to-one pair facing each other in an arrangement sandwiched between them.

第１保持部材６と第２保持部材７とは、締結具８で締結されたときに互いに接触しないように、間隔を空けて設けられる。 The first holding member 6 and the second holding member 7 are provided at intervals so as not to come into contact with each other when fastened by the fastener 8.

図６及び図７に示すように、第１保持部材６には、矩形状の鋼製板状材が折り曲げ加工されることにより、左右両側の平板部６ａの中央に凹設して、挿入される主筋４を保持する主筋保持用溝部１０が形成される。 As shown in FIGS. 6 and 7, a rectangular steel plate-shaped material is bent into the first holding member 6 so as to be recessed in the center of the flat plate portions 6a on both the left and right sides. The main bar holding groove portion 10 for holding the main bar 4 is formed.

主筋保持用溝部１０は、主筋４の周面４ａのほぼ半周程度を包囲する溝寸法で、主筋４の長さ方向に沿って直線状に形成される。 The main bar holding groove portion 10 has a groove dimension that surrounds approximately half the circumference of the peripheral surface 4a of the main bar 4, and is formed linearly along the length direction of the main bar 4.

第１保持部材６は、当該主筋保持用溝部１０により、交差位置で主筋４を保持するように構成される。 The first holding member 6 is configured to hold the main bar 4 at an intersecting position by the main bar holding groove portion 10.

図８及び図９に示すように、第２保持部材７には、矩形状の鋼製板状材が折り曲げ加工されることにより、左右両側の平板部７ａの中央に凹設して、挿入される補強筋５を保持する補強筋保持用溝部１１が形成される。 As shown in FIGS. 8 and 9, a rectangular steel plate-shaped material is bent into the second holding member 7 so as to be recessed in the center of the flat plate portions 7a on both the left and right sides. A reinforcing bar holding groove portion 11 for holding the reinforcing bar 5 is formed.

図８には、１本の補強筋５を保持する第２保持部材７が示されていて、図８（Ａ）は斜視図、図８（Ｂ）は正面図である。図９には、複数本、図示例では２本の補強筋５をまとめて保持する第２保持部材７が示されていて、図９（Ａ）は斜視図、図９（Ｂ）は正面図である。 8A and 8B show a second holding member 7 for holding one reinforcing bar 5, FIG. 8A is a perspective view, and FIG. 8B is a front view. 9A and 9B show a second holding member 7 for holding a plurality of reinforcing bars 5 together, and in the illustrated example, FIG. 9A is a perspective view and FIG. 9B is a front view. Is.

補強筋保持用溝部１１は、補強筋５の周面５ａのほぼ半周程度を包囲する溝寸法で、補強筋５の長さ方向に沿って直線状に形成される。 The reinforcing bar holding groove portion 11 has a groove dimension that surrounds approximately half the circumference of the peripheral surface 5a of the reinforcing bar 5, and is formed linearly along the length direction of the reinforcing bar 5.

補強筋保持用溝部１１の溝寸法は、保持する補強筋５の本数に応じて設定され、従って、溝部１１の幅方向へ向けて第２保持部材７の寸法も大きく設定される。 The groove size of the reinforcing bar holding groove portion 11 is set according to the number of the reinforcing bars 5 to be held, and therefore, the size of the second holding member 7 is also set larger in the width direction of the groove portion 11.

第２保持部材７は、当該補強筋保持用溝部１１により、交差位置で補強筋５を保持するように構成される。 The second holding member 7 is configured to hold the reinforcing bar 5 at the intersecting position by the reinforcing bar holding groove portion 11.

第１保持部材６及び第２保持部材７の左右両側の平板部６ａ，７ａには、主筋４と補強筋５の交差位置を避けて、すなわち、これら保持部材６，７がそれぞれ備える保持用溝部１０，１１の形成位置を避けて、四隅に、締結具８としてのボルト８ａのボルト軸部８ｂの挿通が可能なボルト孔１２が４つ形成される。図示例では、第２保持部材７のボルト孔１２には、雌ネジが形成されている。 The flat plate portions 6a and 7a on the left and right sides of the first holding member 6 and the second holding member 7 avoid the intersection position of the main bar 4 and the reinforcing bar 5, that is, the holding groove portions provided by the holding members 6 and 7, respectively. Four bolt holes 12 through which the bolt shaft portion 8b of the bolt 8a as the fastener 8 can be inserted are formed at the four corners avoiding the formation positions of 10 and 11. In the illustrated example, a female screw is formed in the bolt hole 12 of the second holding member 7.

第２保持部材７は、保持する補強筋５の本数に応じて、寸法が異なり、ボルト孔１２位置が異なるため、第１保持部材６には、異なる寸法の第２保持部材７それぞれのボルト孔１２位置に合うように、複数のボルト孔１２が、図示例では、補強筋５が１本の場合と、２本の場合に対応させて、２種の第２保持部材７に共用することとして、６つのボルト孔１２が形成されている。 Since the second holding member 7 has different dimensions and the positions of the bolt holes 12 differ depending on the number of reinforcing bars 5 to be held, the first holding member 6 has bolt holes of the second holding members 7 having different dimensions. In the illustrated example, a plurality of bolt holes 12 are shared by the two types of second holding members 7 so as to match the 12 positions, corresponding to the case where the reinforcing bar 5 is one and the case where the reinforcing bar 5 is two. , Six bolt holes 12 are formed.

第１保持部材６及び第２保持部材７のボルト孔１２には、図２〜図５，並びに図１１に示すように、主筋４及び補強筋５の重ね合わせ方向にボルト８ａのボルト軸部８ｂが挿通され、ボルト軸部８ｂが第２保持部材７のボルト孔１２に螺合されて、第１保持部材６及び第２保持部材７が主筋４及び補強筋５の重ね合わせ方向に締結される。 As shown in FIGS. 2 to 5 and 11, in the bolt holes 12 of the first holding member 6 and the second holding member 7, the bolt shaft portion 8b of the bolt 8a is provided in the overlapping direction of the main bar 4 and the reinforcing bar 5. Is inserted, the bolt shaft portion 8b is screwed into the bolt hole 12 of the second holding member 7, and the first holding member 6 and the second holding member 7 are fastened in the overlapping direction of the main bar 4 and the reinforcing bar 5. ..

図１１（Ａ）は、補強筋５が１本の場合、図１１（Ｂ）は、補強筋５が複数本、具体的には２本の場合の締結態様を示す斜視図である。 FIG. 11 (A) is a perspective view showing a fastening mode when there is one reinforcing bar 5, and FIG. 11 (B) shows a fastening mode when there are a plurality of reinforcing bars 5, specifically two reinforcing bars.

第１保持部材６について、図２〜図７を参照して、さらに詳述する。第１保持部材６の主筋保持用溝部１０は、図５及び図７に示すように、第１保持部材６側に面する主筋４の周面４ａに対してそれぞれ外接する複数の平坦面１０ａが連接されて形成される。 The first holding member 6 will be described in more detail with reference to FIGS. 2 to 7. As shown in FIGS. 5 and 7, the main bar holding groove portion 10 of the first holding member 6 has a plurality of flat surfaces 10a circumscribing each other with respect to the peripheral surface 4a of the main bar 4 facing the first holding member 6 side. It is formed by being connected.

すなわち、主筋保持用溝部１０は、この溝部１０に保持される主筋４の周面４ａ部分に面して当該溝部１０を区画する面が、主筋４の周面４ａ周りに並設される複数の平坦面１０ａで構成される。 That is, in the main bar holding groove portion 10, a plurality of surfaces that face the peripheral surface 4a portion of the main bar 4 held by the groove portion 10 and partition the groove portion 10 are arranged in parallel around the peripheral surface 4a of the main bar 4. It is composed of a flat surface 10a.

溝部１０を区画する面は、主筋４の周面４ａに沿ってアーチ状に形成すると、主筋４を溝部１０に装着したとき、主筋４の周面４ａに対し片当たりして、遊びが生じるおそれがある。 If the surface for partitioning the groove portion 10 is formed in an arch shape along the peripheral surface 4a of the main bar 4, when the main bar 4 is attached to the groove portion 10, it may hit one side against the peripheral surface 4a of the main bar 4 and play may occur. There is.

本実施形態に係る鉄筋緊結金具１では、溝部１０を区画する面を構成するこれら平坦面１０ａはそれぞれ、締結具８による締結作用で第１保持部材６が第２保持部材７側へ引き寄せられるとき、主筋４の周面４ａに対し外側から圧接されることとなり、主筋４は第１保持部材６で強固に保持される。 In the reinforcing bar binding metal fitting 1 according to the present embodiment, when the first holding member 6 is pulled toward the second holding member 7 by the fastening action of the fastener 8 on each of the flat surfaces 10a constituting the surface for partitioning the groove portion 10. , The main bar 4 is pressed against the peripheral surface 4a from the outside, and the main bar 4 is firmly held by the first holding member 6.

第１保持部材６では、図５及び図７に示すように、保持するための主筋４が挿入される主筋保持用溝部１０の両側に位置する、ボルト孔１２を有する一対の平板部６ａがそれぞれ、板バネ部として形成される。 In the first holding member 6, as shown in FIGS. 5 and 7, a pair of flat plate portions 6a having bolt holes 12 located on both sides of the main bar holding groove portion 10 into which the main bar 4 for holding is inserted are respectively. , Formed as a leaf spring portion.

一対の板バネ部（平板部６ａ、以下同じ）は、締結具８による締結作用で第２保持部材７側へ引き寄せられる平板部６ａが、主筋保持用溝部１０の主筋側縁部１０ｂを起点として第１保持部材６の外縁６ｂへ向けて、次第に第２保持部材７から離れていくように角度αを付けて折曲することで構成される。 In the pair of leaf spring portions (flat plate portion 6a, the same applies hereinafter), the flat plate portion 6a attracted to the second holding member 7 side by the fastening action by the fastener 8 starts from the main bar side edge portion 10b of the main bar holding groove portion 10. It is configured to bend at an angle α toward the outer edge 6b of the first holding member 6 so as to gradually move away from the second holding member 7.

すなわち、主筋保持用溝部１０から、第２保持部材７に対して反対側に跳ね出すように折り曲げ形成することで板バネ部が備えられる。 That is, the leaf spring portion is provided by bending the main bar holding groove portion 10 so as to project from the second holding member 7 to the opposite side.

この板バネ部は、締結具８の締結作用を受けることで、弾性変形しつつ弾性反発力を生じ、締結作用を強めるようになっている。 By receiving the fastening action of the fastener 8, the leaf spring portion is elastically deformed to generate an elastic repulsive force, and the fastening action is strengthened.

また、板バネ部は、弾性変形されて、主筋保持用溝部１０を狭める作用を奏し、これにより、当該溝部１０を形成する複数の平坦面１０ａが主筋４の周面４ａに強く圧接し、当該主筋４を締め付けるようになっている。 Further, the leaf spring portion is elastically deformed to act to narrow the groove portion 10 for holding the main bar, whereby the plurality of flat surfaces 10a forming the groove portion 10 are strongly pressed against the peripheral surface 4a of the main bar 4, and the said. The main bar 4 is tightened.

第１保持部材６には、当該第１保持部材６に保持される主筋４の位置を基準として、この主筋４からの離隔距離を規定するスペーサ９が設けられる。 The first holding member 6 is provided with a spacer 9 that defines the separation distance from the main bar 4 with reference to the position of the main bar 4 held by the first holding member 6.

スペーサ９は、例えば上述したように、杭穴２内部での主筋４に対するコンクリート被り厚を設定する。 As described above, the spacer 9 sets the concrete covering thickness for the main bar 4 inside the pile hole 2.

言い換えれば、スペーサ９は、吊り下ろしによる建て込み時に、杭穴２の内面に当接されて、鉄筋組立体である杭かご鉄筋３の杭穴２内部での設置位置を設定する。 In other words, the spacer 9 is brought into contact with the inner surface of the pile hole 2 at the time of building by hanging, and sets the installation position inside the pile hole 2 of the pile cage reinforcing bar 3 which is a reinforcing bar assembly.

本実施形態のスペーサ９は、図２〜図５，並びに図１０に示すように、Ｕ字状に形成され、折り返し側と反対側の二股の両端に、後述する凹部１３に係止されつつ主筋４が圧接される、２つで一対の係止片部９ａを有する。 As shown in FIGS. 2 to 5 and 10, the spacer 9 of the present embodiment is formed in a U shape, and the main bar is locked at both ends of the bifurcation on the side opposite to the folded side by the recess 13 described later. It has two locking pieces 9a to which the 4 is pressure-welded.

一対の係止片部９ａは、図示例では、Ｕ字に対し外側へ向けて、互いに反対向きに突設されている。 In the illustrated example, the pair of locking piece portions 9a project outward from the U-shape in opposite directions to each other.

スペーサ９は、Ｕ字状に限らず、単一の係止片部９ａを含むＴ字状であっても良い。 The spacer 9 is not limited to the U shape, and may be a T shape including a single locking piece portion 9a.

第１保持部材６には、図５〜図７に示すように、スペーサ９を設けるために、主筋保持用溝部１０に、主筋４の長さ方向に沿って当該溝部１０の幅方向の中央位置をさらに窪ませて、主筋保持用溝部１０に挿入された主筋４に面する凹部１３が形成される。 As shown in FIGS. 5 to 7, the first holding member 6 is provided with a spacer 9 in the main bar holding groove portion 10 at a central position in the width direction of the main bar 4 along the length direction of the main bar 4. Is further recessed to form a recess 13 facing the main bar 4 inserted into the main bar holding groove portion 10.

凹部１３は、主筋４の長さ方向に沿う両端が開口され、凹部１３位置には、第１保持部材６を貫通して、スペーサ９を挿通するための挿通孔１４が形成される。 Both ends of the recess 13 along the length direction of the main bar 4 are opened, and an insertion hole 14 for inserting the spacer 9 is formed at the position of the recess 13 so as to penetrate the first holding member 6.

挿通孔１４は、Ｕ字状のスペーサ９が通過し、係止片部９ａが凹部１３に引っ掛かる寸法で形成される。 The insertion hole 14 is formed so as to allow the U-shaped spacer 9 to pass through and the locking piece portion 9a to be hooked on the recess 13.

スペーサ９は、第１保持部材６に、主筋４側から反対側へ抜け出して、当該第１保持部材６から突出するように挿通され、スペーサ９の係止片部９ａは、凹部１３に係止される。 The spacer 9 is inserted into the first holding member 6 so as to protrude from the main bar 4 side to the opposite side and protrude from the first holding member 6, and the locking piece portion 9a of the spacer 9 is locked in the recess 13. Will be done.

凹部１３に係止された係止片部９ａは、主筋４の周面４ａに面して位置され、締結具８による締結作用で第１保持部材６が第２保持部材７側へ引き寄せられることで、主筋４が圧接され、これにより、主筋４と第１保持部材６とで強固に挟持される。 The locking piece 9a locked in the recess 13 is positioned so as to face the peripheral surface 4a of the main bar 4, and the first holding member 6 is pulled toward the second holding member 7 by the fastening action of the fastener 8. Then, the main bar 4 is pressure-welded, whereby the main bar 4 and the first holding member 6 are firmly sandwiched.

さらに、係止片部９ａには、板バネ部の弾性変形によって溝部１０が主筋４を締め付ける作用によって、さらに強く主筋４が圧接されるようになっている。 Further, the locking piece portion 9a is pressed against the main bar 4 more strongly by the action of the groove portion 10 tightening the main bar 4 due to the elastic deformation of the leaf spring portion.

第１保持部材６の凹部１３には、図６，並びにスペーサ９を図示省略した図１２に示されているように、主筋４の外側に補強筋５と並行に（主筋４と交差する向きに）配筋される帯筋１６（追加の鉄筋）がある場合、主筋４と反対側となる位置に、帯筋１６の長さ方向に沿って切り欠いて、当該帯筋１６に係合して位置決めする切り欠き部１５が形成される。 In the recess 13 of the first holding member 6, as shown in FIGS. 6 and 12 in which the spacer 9 is not shown, the outside of the main bar 4 is parallel to the reinforcing bar 5 (in the direction intersecting the main bar 4). ) If there is a reinforcing bar 16 (additional reinforcing bar) to be arranged, cut out along the length direction of the reinforcing bar 16 at a position opposite to the main reinforcing bar 4 and engage with the reinforcing bar 16. A notch portion 15 for positioning is formed.

次に、本実施形態に係る鉄筋緊結金具１の作用について説明する。まず、第１保持部材６にスペーサ９を取り付ける。 Next, the operation of the reinforcing bar binding metal fitting 1 according to the present embodiment will be described. First, the spacer 9 is attached to the first holding member 6.

第１保持部材６の挿通孔１４に、主筋４側からスペーサ９を通し、スペーサ９の係止片部９ａを凹部１３に係止して、第１保持部材６から主筋４とは反対側へスペーサ９を突出させる。 The spacer 9 is passed through the insertion hole 14 of the first holding member 6 from the main bar 4 side, the locking piece portion 9a of the spacer 9 is locked in the recess 13, and the first holding member 6 is moved to the side opposite to the main bar 4. The spacer 9 is projected.

次に、主筋４と補強筋５の交差位置で、主筋４に、補強筋５とは反対側から、主筋保持用溝部１０を介して、第１保持部材６を被せると共に、補強筋５に、主筋４とは反対側から、補強筋保持溝１１を介して、第２保持部材７を被せる。 Next, at the intersection of the main bar 4 and the reinforcing bar 5, the main bar 4 is covered with the first holding member 6 from the side opposite to the reinforcing bar 5 via the main bar holding groove portion 10, and the reinforcing bar 5 is covered with the reinforcing bar 5. The second holding member 7 is covered from the side opposite to the main bar 4 via the reinforcing bar holding groove 11.

これにより、交差して配筋された主筋４と補強筋５が重なり合う交差位置で、これら主筋４と補強筋５とは、これら第１保持部材６及び第２保持部材７によって挟み込まれた状態となる。また、スペーサ９の係止片部９ａが、主筋４によって凹部１３内に保持される。 As a result, at the crossing position where the main bar 4 and the reinforcing bar 5 that are crossed and arranged overlap each other, the main bar 4 and the reinforcing bar 5 are sandwiched between the first holding member 6 and the second holding member 7. Become. Further, the locking piece portion 9a of the spacer 9 is held in the recess 13 by the main bar 4.

その後、第１保持部材６及び第２保持部材７の平板部６ａ，７ａ間に亘り、ボルト孔１２を介して、締結具８のボルト８ａを一方から挿入し、平板部７ａに螺合する。 After that, the bolt 8a of the fastener 8 is inserted from one side through the bolt holes 12 between the flat plate portions 6a and 7a of the first holding member 6 and the second holding member 7, and screwed into the flat plate portion 7a.

締結具８を締め付けていくと、第１保持部材６の板バネ部である平板部６ａが弾性変形しつつ、第２保持部材７側へ引き寄せられ、締結作用が強められていく。 As the fastener 8 is tightened, the flat plate portion 6a, which is the leaf spring portion of the first holding member 6, is elastically deformed and pulled toward the second holding member 7, and the fastening action is strengthened.

板バネ部が弾性変形されると、主筋保持用溝部１０を狭める力を発生させることができ、これにより、溝部１０を構成して主筋４に外接する複数の平坦面１０ａを主筋４に強固に圧接することができる。 When the leaf spring portion is elastically deformed, a force that narrows the main bar holding groove portion 10 can be generated, whereby a plurality of flat surfaces 10a that form the groove portion 10 and circumscribe the main bar 4 are firmly formed on the main bar 4. Can be pressure welded.

また、第１保持部材６が第２保持部材７側へ引き寄せられることで、補強筋５を介して、主筋４を、凹部１３内の係止片部９ａに強く圧接させることができ、これにより、スペーサ９の係止片部９ａを、第１保持部材６と主筋４とで強固に挟持することができる。 Further, by pulling the first holding member 6 toward the second holding member 7, the main bar 4 can be strongly pressed against the locking piece portion 9a in the recess 13 via the reinforcing bar 5. , The locking piece portion 9a of the spacer 9 can be firmly sandwiched between the first holding member 6 and the main bar 4.

従って、第１保持部材６にスペーサ９を設けることができると共に、当該スペーサ９の姿勢を強固に保持することができる。 Therefore, the spacer 9 can be provided on the first holding member 6, and the posture of the spacer 9 can be firmly held.

また、板バネ部は、いわゆるスプリングワッシャのように作用して、第１保持部材６と第２保持部材７とを強固に締結することができる。 Further, the leaf spring portion acts like a so-called spring washer, and can firmly fasten the first holding member 6 and the second holding member 7.

従って、本実施形態に係る鉄筋緊結金具１にあっては、主筋４及び補強筋５の緊結とスペーサ９の設置を一箇所で一括して行うことができると共に、設置したスペーサ９の姿勢変化を防止することができる。 Therefore, in the reinforcing bar binding metal fitting 1 according to the present embodiment, the main reinforcing bar 4 and the reinforcing bar 5 can be bound together and the spacer 9 can be installed at one place, and the posture of the installed spacer 9 can be changed. Can be prevented.

第１保持部材６には、帯筋１６などの追加の鉄筋を位置決めする位置決め部１５が形成されるので、配筋の利便性を向上することができる。 Since the first holding member 6 is formed with a positioning portion 15 for positioning an additional reinforcing bar such as a band bar 16, the convenience of bar arrangement can be improved.

図１３及び図１４には、上記実施形態の変形例が示されている。この変形例は、締結具８により第１保持部材６と第２保持部材７とを軽く仮締結して、主筋４と補強筋５を交差位置で重ね合わせた状態で、スペーサ９を第１保持部材６に後付けで設けることができるものである。 13 and 14 show a modified example of the above embodiment. In this modification, the first holding member 6 and the second holding member 7 are lightly temporarily fastened by the fastener 8, and the spacer 9 is first held in a state where the main bar 4 and the reinforcing bar 5 are overlapped at the intersecting position. It can be retrofitted to the member 6.

この変形例では、上記実施形態の挿通孔１４が形成される凹部１３に代えて、図１３に示すように、当該凹部１３が、係止片部９ａをスライドして挿入するためのスライド凹部１７として構成される。 In this modification, instead of the recess 13 in which the insertion hole 14 of the above embodiment is formed, as shown in FIG. 13, the recess 13 is a slide recess 17 for sliding and inserting the locking piece portion 9a. Is configured as.

このスライド凹部１７は、上記凹部１３と同様に、主筋４の長さ方向に沿って主筋保持用溝部１０の幅方向の中央位置をさらに窪ませて、主筋保持用溝部１０に挿入された主筋４に面するように形成される。 Similar to the recess 13, the slide recess 17 further recesses the central position of the main bar holding groove 10 in the width direction along the length direction of the main bar 4, and the main bar 4 is inserted into the main bar holding groove 10. It is formed so as to face.

スペーサ９は図１４に示すように、上記実施形態と同様に、Ｕ字状であるが、一対の係止片部９ａは、Ｕ字に対し、同じ方向に突設されている。 As shown in FIG. 14, the spacer 9 has a U-shape as in the above embodiment, but the pair of locking piece portions 9a project in the same direction with respect to the U-shape.

スペーサ９は、Ｕ字状に限らず、単一の係止片部９ａを含むＬ字状であっても良い。 The spacer 9 is not limited to the U shape, and may be an L shape including a single locking piece portion 9a.

図示例にあっては、スペーサ９に２つの係止片部９ａが形成されていることから、スライド凹部１７は、主筋４の長さ方向に並べて、２つ設けられる。 In the illustrated example, since the spacer 9 is formed with two locking piece portions 9a, two slide recesses 17 are provided side by side in the length direction of the main bar 4.

この変形例では、スペーサ９の係止片部９ａは、スライド凹部１７の一端開口１７ａから、主筋４の周面４ａ上を滑らせて、当該スライド凹部１７内へ挿抜可能にスライドされ、スライド凹部１７内に挿入されて係止される。 In this modification, the locking piece 9a of the spacer 9 is slid from one end opening 17a of the slide recess 17 on the peripheral surface 4a of the main bar 4 and slid into the slide recess 17 so as to be insertable and removable. It is inserted into 17 and locked.

この係止片部９ａも、締結具８の締結作用により、主筋４を、スライド凹部１７内の係止片部９ａに強く圧接させることができ、これにより、スペーサ９の係止片部９ａを、第１保持部材６と主筋４とで強固に挟持することができる。 The locking piece 9a can also strongly press the main bar 4 against the locking piece 9a in the slide recess 17 by the fastening action of the fastener 8, whereby the locking piece 9a of the spacer 9 can be brought into close contact with the locking piece 9a. , The first holding member 6 and the main bar 4 can be firmly sandwiched.

従って、第１保持部材６にスペーサ９を設けることができると共に、当該スペーサ９の姿勢を強固に保持することができる。 Therefore, the spacer 9 can be provided on the first holding member 6, and the posture of the spacer 9 can be firmly held.

このような変形例にあっても、上記実施形態と同様の作用効果が得られると共に、主筋４と補強筋５を組んだ後にスペーサ９を第１保持部材６に設けることができて、緊結作業を効率よく行うことができるという利点がある。 Even in such a modified example, the same effect as that of the above embodiment can be obtained, and the spacer 9 can be provided on the first holding member 6 after the main bar 4 and the reinforcing bar 5 are assembled, so that the binding work can be performed. There is an advantage that can be performed efficiently.

上記実施形態では、図１に示した杭かご鉄筋３を例示して説明したが、上記実施形態及び変形例に係る鉄筋緊結金具１は、図１５に示した平面的な壁用の鉄筋組立体１８など、どのような形態の鉄筋組立体に対しても好ましく採用することができる。 In the above embodiment, the pile cage reinforcing bar 3 shown in FIG. 1 has been illustrated as an example, but the reinforcing bar binding metal fitting 1 according to the above embodiment and the modified example is a reinforcing bar assembly for a flat wall shown in FIG. It can be preferably adopted for any form of reinforcing bar assembly such as 18.

１ 鉄筋緊結金具
４ 主筋
５ 補強筋
６ 第１保持部材
６ａ 平板部（板バネ部）
７ 第２保持部材
８ 締結具
９ スペーサ
９ａ 係止片部
１０ 主筋保持用溝部
１０ａ 主筋保持用溝部の平坦面
１３ 凹部
１４ 挿通孔
１５ 切り欠き部
１６ 帯筋
１７ スライド凹部 1 Reinforcing bar binding bracket 4 Main bar 5 Reinforcing bar 6 First holding member 6a Flat plate part (leaf spring part)
7 Second holding member 8 Fastener 9 Spacer 9a Locking piece 10 Main bar holding groove 10a Flat surface of main bar holding groove 13 Recess 14 Insertion hole 15 Notch 16 Band bar 17 Slide recess

Claims (6)

交差して配筋される２本の鉄筋を重ね合わせた状態に緊締する鉄筋緊結金具であって、
２本の上記鉄筋を交差位置で挟む配置で一対一組で設けられ、一方の第１鉄筋を保持する第１鉄筋保持用溝部が形成された第１保持部材及び他方の第２鉄筋を保持するための第２保持部材と、
交差位置を避けて、上記第１保持部材と上記第２保持部材とを上記第１及び第２鉄筋の重ね合わせ方向に締結する締結具と、
上記第１保持部材に設けられ、上記第１鉄筋からの離隔距離を規定するスペーサとを備えたことを特徴とする鉄筋緊結金具。 It is a reinforcing bar binding metal fitting that tightens two reinforcing bars that are crossed and arranged in a superposed state.
Holds the first holding member and the other second reinforcing bar, which are provided in a one-to-one set so as to sandwich the two reinforcing bars at the crossing positions and have a groove for holding the first reinforcing bar for holding one of the first reinforcing bars. Second holding member for
A fastener that fastens the first holding member and the second holding member in the overlapping direction of the first and second reinforcing bars while avoiding the intersection position.
A reinforcing bar binding metal fitting provided on the first holding member and provided with a spacer that defines a separation distance from the first reinforcing bar. 前記第１保持部材には、前記第１鉄筋保持用溝部を窪ませて、前記第１鉄筋に面する凹部が形成されると共に、該凹部位置で該第１保持部材を貫通して、前記スペーサを挿通するための挿通孔が形成され、
上記スペーサは、上記凹部に係止されつつ上記第１鉄筋が圧接される係止片部を有して、該第１鉄筋側から上記挿通孔に挿通されて上記第１保持部材に設けられることを特徴とする請求項１に記載の鉄筋緊結金具。 In the first holding member, the groove for holding the first reinforcing bar is recessed to form a recess facing the first reinforcing bar, and the spacer penetrates the first holding member at the recessed position. An insertion hole is formed to insert the
The spacer has a locking piece portion to which the first reinforcing bar is pressure-welded while being locked to the recess, and is inserted into the insertion hole from the first reinforcing bar side and provided in the first holding member. The reinforcing bar binding metal fitting according to claim 1. 前記第１保持部材には、前記第１鉄筋の長さ方向に沿って前記第１鉄筋保持用溝部を窪ませて、該第１鉄筋に面するスライド凹部が形成され、
前記スペーサは、上記スライド凹部内へ挿抜可能にスライドされて、該スライド凹部に係止されつつ上記第１鉄筋が圧接される係止片部を有して、該係止片部を介して上記第１保持部材に設けられることを特徴とする請求項１に記載の鉄筋緊結金具。 In the first holding member, the groove for holding the first reinforcing bar is recessed along the length direction of the first reinforcing bar, and a slide recess facing the first reinforcing bar is formed.
The spacer has a locking piece portion that is slidably slid into the slide recess and is locked in the slide recess while the first reinforcing bar is pressure-contacted, and the spacer is inserted through the locking piece portion. The reinforcing bar binding metal fitting according to claim 1, wherein the reinforcing bar binding metal fitting is provided on the first holding member. 前記第１保持部材には、上記第１鉄筋と反対側に、該第１鉄筋の外側で当該第１鉄筋と交差する向きに配筋される追加の鉄筋を位置決めする位置決め部が形成されることを特徴とする請求項１〜３いずれかの項に記載の鉄筋緊結金具。 The first holding member is formed with a positioning portion on the opposite side of the first reinforcing bar to position additional reinforcing bars arranged on the outside of the first reinforcing bar in a direction intersecting with the first reinforcing bar. The reinforcing bar binding metal fitting according to any one of claims 1 to 3. 前記第１鉄筋保持用溝部は、前記第１保持部材側に面する前記第１鉄筋の周面に対してそれぞれ外接する複数の平坦面が連接されて形成されることを特徴とする請求項１〜４いずれかの項に記載の鉄筋緊結金具。 Claim 1 is characterized in that the first reinforcing bar holding groove portion is formed by connecting a plurality of flat surfaces circumscribing each other to the peripheral surface of the first reinforcing bar facing the first holding member side. ~ 4 Reinforcing bar binding bracket according to any item. 前記第１保持部材には、前記第１鉄筋保持用溝部の両側に位置させて一対の板バネ部が形成され、これら板バネ部が前記第２保持部材と前記締結具で締結されることを特徴とする請求項１〜５いずれかの項に記載の鉄筋緊結金具。 A pair of leaf spring portions are formed in the first holding member so as to be located on both sides of the first reinforcing bar holding groove portion, and these leaf spring portions are fastened to the second holding member by the fastener. The reinforcing bar binding metal fitting according to any one of claims 1 to 5, which is characteristic.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113833206A (en) * 2021-10-15 2021-12-24 江阴市朗诺金属制品有限公司 Method for welding reinforcing mesh

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000257212A (en) * 1999-03-11 2000-09-19 Sanwa Seisakusho:Kk Reinforcing bar binding piece
JP2001164700A (en) * 1999-12-10 2001-06-19 Dai Kogyo:Kk Reinforcement binder
JP3199571U (en) * 2015-03-19 2015-09-03 株式会社京都スペーサー Cast-in-place pile spacer
JP2016029237A (en) * 2014-07-25 2016-03-03 株式会社京都スペーサー Fixture of reinforcement cage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000257212A (en) * 1999-03-11 2000-09-19 Sanwa Seisakusho:Kk Reinforcing bar binding piece
JP2001164700A (en) * 1999-12-10 2001-06-19 Dai Kogyo:Kk Reinforcement binder
JP2016029237A (en) * 2014-07-25 2016-03-03 株式会社京都スペーサー Fixture of reinforcement cage
JP3199571U (en) * 2015-03-19 2015-09-03 株式会社京都スペーサー Cast-in-place pile spacer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113833206A (en) * 2021-10-15 2021-12-24 江阴市朗诺金属制品有限公司 Method for welding reinforcing mesh

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