JP4024788B2 - Rebar spacer - Google Patents

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JP4024788B2
JP4024788B2 JP2004293430A JP2004293430A JP4024788B2 JP 4024788 B2 JP4024788 B2 JP 4024788B2 JP 2004293430 A JP2004293430 A JP 2004293430A JP 2004293430 A JP2004293430 A JP 2004293430A JP 4024788 B2 JP4024788 B2 JP 4024788B2
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reinforcing bar
holding member
abdomen
elastic arm
bent
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JP2006104783A (en
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功 吉田
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功 吉田
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
    • E04C5/201—Spacer blocks with embedded separate holding wire or clips

Description

本発明は、鉄筋コンクリート施工の際に使用する鉄筋用スペーサに関する。   The present invention relates to a reinforcing bar spacer used in reinforced concrete construction.

従来、鉄筋コンクリート施工用のスペーサとして、コンクリート又はモルタルから成るブロック体と、ブロック体の上部に脚部が埋設された鉄筋保持用のキャッチャー（保持部材）を備えたものがあり、その鉄筋保持用のキャッチャーは、鉄筋を挟持する腕部を有していた（特許文献１参照）。
特開２００１−１９８９１２号公報 Conventionally, as a spacer for reinforced concrete construction, there has been a block body made of concrete or mortar and a rebar holding catcher (holding member) with a leg embedded in the upper part of the block body. The catcher has an arm portion for sandwiching a reinforcing bar (see Patent Document 1).
JP 2001-198912 A

しかし、従来の鉄筋用スペーサは、径の異なる鉄筋に対応することができず、１種類の径の鉄筋しか保持できなかった。そのため、それぞれの鉄筋の径の大きさに合った鉄筋用スペーサを揃えていなければならなかった。また、鉄筋を保持する腕部は、薄い鉄板を弯曲して形成されており、その製造に手間とコストがかかるものだった。
そこで、本発明は、径の異なる鉄筋に対応して、鉄筋を保持することができ、かつ、構造が簡単で、製造の手間とコストを大幅に軽減できる鉄筋用スペーサを提供することを目的とする。 However, the conventional reinforcing bar spacer cannot cope with reinforcing bars having different diameters, and can only hold reinforcing bars of one type of diameter. For this reason, it is necessary to prepare rebar spacers suitable for the diameter of each rebar. In addition, the arm portion that holds the reinforcing bar is formed by bending a thin steel plate, and it takes time and effort to manufacture the arm.
Therefore, the present invention has an object to provide a reinforcing bar spacer that can hold a reinforcing bar corresponding to reinforcing bars having different diameters, has a simple structure, and can greatly reduce the labor and cost of manufacturing. To do.

上記目的を達成するために、本発明に係る鉄筋用スペーサは、コンクリート又はモルタルから成るブロック体と、一本の線材を折り曲げて形成した保持部材と、を備え、該保持部材は、上記ブロック体の上部に埋設される基部を有し、該基部から、２種以上の鉄筋の径に対応してそれぞれが２点乃至３点で該鉄筋に接触する一対の鉄筋挟持用弾性腕部を連設したものである。   In order to achieve the above object, a reinforcing bar spacer according to the present invention includes a block body made of concrete or mortar, and a holding member formed by bending a single wire, and the holding member includes the block body. A pair of elastic arms for sandwiching a reinforcing bar that touch the reinforcing bar at two or three points corresponding to the diameter of two or more types of reinforcing bars. It is a thing.

また、保持部材が鉄筋を保持した状態に於て、該保持部材の一対の弾性腕部の自由端側に、支持部を、上記鉄筋の軸心方向にかつ互いに逆向きに備えているものである。   Further, in a state where the holding member holds the reinforcing bar, a support portion is provided on the free end side of the pair of elastic arm portions of the holding member in the axial direction of the reinforcing bar and opposite to each other. is there.

また、上記弾性腕部は、上記鉄筋の側面下半部と接触する直線状の第１腹部と、該第１腹部の上端から内方へ折り曲げた第１折曲部と、該第１折曲部の上端に連設されると共に上記鉄筋の側面上半部又は側面横部に近接乃至接触する内方上傾状の第２腹部と、該第２腹部の上端から外方へ折り曲げた第２折曲部と、該第２折曲部の上端に連設されると共に上記鉄筋と接触する倒立Ｕ字状のガイド部と、を有する。   The elastic arm includes a linear first abdomen that contacts the lower half of the side surface of the reinforcing bar, a first bent part bent inward from the upper end of the first abdomen, and the first bent part. A second abdomen that is inclined inward and that is adjacent to or in contact with the upper half or side of the side of the reinforcing bar, and a second bent outward from the upper end of the second abdomen A bent portion, and an inverted U-shaped guide portion that is connected to the upper end of the second bent portion and contacts the reinforcing bar.

本発明は、次のような著大な効果を奏する。
本発明に係る鉄筋用スペーサによれば、径の異なる鉄筋に対応して、かつ、安定して鉄筋を保持できる。さらに、構造が簡単で、製造の手間とコストを大幅に軽減できる。 The present invention has the following remarkable effects.
According to the reinforcing bar spacer according to the present invention, it is possible to stably hold the reinforcing bar corresponding to reinforcing bars having different diameters. Furthermore, the structure is simple and the manufacturing effort and cost can be greatly reduced.

以下、実施の形態を示す図面に基づき本発明を詳説する。
図１〜図６に於て、10は鉄筋用スペーサであり、鉄筋用スペーサは、コンクリート製又はモルタル製のブロック体５と、保持部材１と、から成るものである。また、図１〜図３は、保持部材１が鉄筋を保持していない状態───自由状態───を示し、図４〜図６は、保持部材１が鉄筋６を保持している状態───保持状態───を示す。 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
1 to 6, reference numeral 10 denotes a reinforcing bar spacer. The reinforcing bar spacer includes a block body 5 made of concrete or mortar and a holding member 1. 1 to 3 show a state in which the holding member 1 does not hold the reinforcing bar, that is, a free state, and FIGS. 4 to 6 show a state in which the holding member 1 holds the reinforcing bar 6. ───Holding state─── is shown.

図１又は図４に示すように、ブロック体５は、円形の上面部から下方に向かって縮径状に形成され、かつ、下端部は半球状に形成されている。
保持部材１は、横断面円形の一本の線材を折り曲げて形成され、ブロック体５の上部に埋設される基部２と、基部２に連設される一対の鉄筋挟持用弾性腕部３，３と、を有している。 As shown in FIG. 1 or FIG. 4, the block body 5 is formed in a reduced diameter shape from the circular upper surface portion toward the lower side, and the lower end portion is formed in a hemispherical shape.
The holding member 1 is formed by bending a single wire having a circular cross section, and includes a base portion 2 embedded in an upper portion of the block body 5 and a pair of rebar sandwiching elastic arm portions 3, 3 connected to the base portion 2. And have.

図５及び図６に示すように、一対の弾性腕部３，３は、２種以上の鉄筋６の径に対応し、かつ、それぞれの弾性腕部３は、２点乃至３点で鉄筋６に接触するように成っている。ここでは、２種類の鉄筋６の径に対応した実施例を示し、図５に示す鉄筋６は、図６に示す鉄筋６より小径のものである。なお、この鉄筋６はコンクリート施工用の一般的な鉄筋であり、図５の（小径の）鉄筋６の径と図６の（大径の）鉄筋６の径との組合せは、例えば、10mmと13mm、16mmと19mm、22mmと25mm等の組合せである。   As shown in FIGS. 5 and 6, the pair of elastic arm portions 3, 3 correspond to the diameters of two or more types of reinforcing bars 6, and each elastic arm portion 3 has two points to three points. It is made to come into contact with. Here, an example corresponding to the diameters of the two types of reinforcing bars 6 is shown, and the reinforcing bars 6 shown in FIG. 5 are smaller in diameter than the reinforcing bars 6 shown in FIG. This rebar 6 is a general rebar for concrete construction, and the combination of the diameter of the (small diameter) rebar 6 in FIG. 5 and the diameter of the (large diameter) rebar 6 in FIG. Combinations of 13mm, 16mm and 19mm, 22mm and 25mm, etc.

基部２は、略Ｕ字状に形成され、その両端（上端）から一対の弾性腕部３，３が上方へ連設している。
弾性腕部３は、鉄筋６の側面下半部13と接触する直線状の第１腹部８と、第１腹部８の上端から内方へ折り曲げられた第１折曲部11と、を有し、第１折曲部11の上端には、鉄筋６の側面上半部14又は側面横部15に近接乃至接触する内方上傾状の第２腹部９が連設されている。さらに、弾性腕部３は、第２腹部９の上端から外方へ折り曲げた第２折曲部12と、第２折曲部12の上端に連設されると共に鉄筋６と接触する倒立Ｕ字状のガイド部７と、を有している。ガイド部７は、その内側の端部にて、第２折曲部12と連結している。また、第２腹部９は直線状に形成されている。言い換えると、一対の弾性腕部３，３は、基部２の上端から上方へ互いに離れるように延伸する第１腹部８，８を有し、第１腹部８，８の上端に、第１折曲部11，11を介して上方に向かって互いに接近するように延伸する第２腹部９，９を連設し、第２腹部９，９の上端に第２折曲部12，12を介してガイド部７，７が連設されている。 The base portion 2 is formed in a substantially U shape, and a pair of elastic arm portions 3 and 3 are connected upward from both ends (upper ends) thereof.
The elastic arm 3 includes a linear first abdomen 8 that contacts the lower half 13 of the side surface of the reinforcing bar 6, and a first bent part 11 that is bent inward from the upper end of the first abdomen 8. The upper end of the first bent portion 11 is continuously provided with an inwardly inclined second abdominal portion 9 that is close to or in contact with the side upper half 14 or the side lateral portion 15 of the reinforcing bar 6. Further, the elastic arm portion 3 is provided with a second bent portion 12 bent outward from the upper end of the second abdominal portion 9, and an inverted U-shape that is connected to the upper end of the second bent portion 12 and is in contact with the reinforcing bar 6. And a guide portion 7 having a shape. The guide portion 7 is connected to the second bent portion 12 at the inner end portion. The second abdomen 9 is formed in a straight line. In other words, the pair of elastic arm portions 3, 3 have first abdominal portions 8, 8 extending away from each other upward from the upper end of the base portion 2, and the first bent portions are formed at the upper ends of the first abdominal portions 8, 8. The second abdomen 9 and 9 extending so as to approach each other upward via the parts 11 and 11 are continuously provided, and the upper end of the second abdomen 9 and 9 is guided through the second bent parts 12 and 12. The parts 7 and 7 are provided continuously.

また、図４に示す保持状態に於て、保持部材１の一対の弾性腕部３，３の自由端側に、支持部４，４を、鉄筋６の軸心方向にかつ互いに逆向きに備えている。つまり、支持部４は、ガイド部７の外側の端部に連結されている。
また、弾性腕部３，３の第１腹部８，８の開き角度θ（図２参照）は、径の異なる鉄筋６であっても、保持状態で鉄筋６の下限位置が同じになるように（鉄筋用スペーサ10の設置面から鉄筋６の下限位置までの高さ寸法が同じになるように）設定されている。 Further, in the holding state shown in FIG. 4, support portions 4, 4 are provided on the free ends of the pair of elastic arm portions 3, 3 of the holding member 1 in the axial direction of the reinforcing bar 6 and in opposite directions. ing. That is, the support portion 4 is connected to the outer end portion of the guide portion 7.
Further, the opening angle θ (see FIG. 2) of the first abdominal portions 8 and 8 of the elastic arm portions 3 and 3 is set so that the lower limit position of the reinforcing bars 6 is the same in the holding state even if the reinforcing bars 6 have different diameters. (The height dimension from the installation surface of the reinforcing bar spacer 10 to the lower limit position of the reinforcing bar 6 is the same).

基部２の形状はＵ字状に限らず、例えば、Ｖ字状、Ｗ字状、上方に開口した円弧状、また、それ以外の形状であってもよい。
また、ブロック体５は、一般に使用されている形状であればよく、上面部が矩形でかつ下方に向かってテーパ状に細くなる形状や、下端面が平面に形成されている等も含む。 The shape of the base 2 is not limited to the U shape, and may be, for example, a V shape, a W shape, an arc shape opened upward, or other shapes.
Moreover, the block body 5 should just be the shape currently used generally, and the upper surface part is a rectangle and the shape which becomes taper-shaped toward the downward direction, the lower end surface is formed in the plane, etc. are included.

上述した本発明である鉄筋用スペーサの使用方法（作用）について説明する。
まず、コンクリート施工する床等に、（多数個の）鉄筋用スペーサ10を配設する（図示省略）。次に、大径又は小径の鉄筋６を選び、保持部材１の上方からその鉄筋６を保持部材１内に押し込む。この時、鉄筋６は、弾性腕部３，３のガイド部７，７に沿って、弾性腕部３，３を外方へ押し広げながら（下方へ）進み、鉄筋６は、弾性腕部３，３の間に嵌め込まれ、弾性腕部３，３の弾発付勢にて挟持される。 The use method (action) of the above-described rebar spacer according to the present invention will be described.
First, (a number of) reinforcing bar spacers 10 are disposed on a floor on which concrete is to be constructed (not shown). Next, a large-diameter or small-diameter rebar 6 is selected, and the rebar 6 is pushed into the holding member 1 from above the holding member 1. At this time, the rebar 6 advances along the guide portions 7 and 7 of the elastic arm portions 3 and 3 while pushing the elastic arm portions 3 and 3 outward (downward), and the rebar 6 moves toward the elastic arm portion 3. , 3 and is clamped by the elastic urging force of the elastic arm portions 3, 3.

そして、図５又は図６で示す保持状態では、弾性腕部３の第１腹部８は、鉄筋６の側面下半部13と接触し、第２腹部９は、鉄筋６の側面上半部14又は側面横部15と接触している。さらに、支持部４が、鉄筋６の側面上半部14と接触している。このように、弾性腕部３は鉄筋６と３点で接触している。
また、特に、大径の鉄筋６を保持する時に、第２腹部９が鉄筋６と接触しない状態がある。つまり、弾性腕部３が鉄筋６と２点で接触する場合がある。 In the holding state shown in FIG. 5 or FIG. 6, the first abdomen 8 of the elastic arm 3 is in contact with the lower side half 13 of the reinforcing bar 6, and the second abdomen 9 is the upper side half 14 of the reinforcing bar 6. Alternatively, it is in contact with the side lateral portion 15. Further, the support portion 4 is in contact with the upper side half portion 14 of the reinforcing bar 6. In this way, the elastic arm portion 3 is in contact with the rebar 6 at three points.
In particular, when the large-diameter reinforcing bar 6 is held, the second abdomen 9 does not come into contact with the reinforcing bar 6. That is, the elastic arm part 3 may contact the rebar 6 at two points.

以上のように、本発明である鉄筋用スペーサは、コンクリート又はモルタルから成るブロック体５と、一本の線材を折り曲げて形成した保持部材１と、を備え、保持部材１は、ブロック体５の上部に埋設される基部２を有し、基部２から、２種以上の鉄筋６の径に対応してそれぞれが２点乃至３点で鉄筋６に接触する一対の鉄筋挟持用弾性腕部３，３を連設したので、２種以上の径の異なる鉄筋６の径に対応して、かつ、安定して鉄筋６を保持できる。さらに、構造が簡単で、製造の手間とコストを大幅に軽減できる。   As described above, the reinforcing bar spacer according to the present invention includes the block body 5 made of concrete or mortar and the holding member 1 formed by bending a single wire. A pair of elastic arm clamps 3 for holding reinforcing bars, each of which has a base 2 embedded in the upper part and contacts the reinforcing bars 6 at two or three points corresponding to the diameters of two or more kinds of reinforcing bars 6 from the base 2. Since 3 is continuously provided, the reinforcing bars 6 can be stably held corresponding to the diameters of the reinforcing bars 6 having two or more different diameters. Furthermore, the structure is simple and the manufacturing effort and cost can be greatly reduced.

さらに、保持部材１が鉄筋６を保持した状態に於て、保持部材１の一対の弾性腕部３，３の自由端側に、支持部４，４を、鉄筋６の軸心方向にかつ互いに逆向きに備えているので、鉄筋６を安定姿勢を保って確実に保持できる。 Further, in a state where the holding member 1 holds the reinforcing bar 6, the support parts 4 and 4 are arranged on the free end side of the pair of elastic arm parts 3 and 3 of the holding member 1 in the axial direction of the reinforcing bar 6 and to each other. Since it is provided in the reverse direction, the rebar 6 can be securely held in a stable posture.

さらに、弾性腕部３は、鉄筋６の側面下半部13と接触する直線状の第１腹部８と、第１腹部８の上端から内方へ折り曲げた第１折曲部11と、第１折曲部11の上端に連設されると共に鉄筋６の側面上半部14又は側面横部15に近接乃至接触する内方上傾状の第２腹部９と、第２腹部９の上端から外方へ折り曲げた第２折曲部12と、第２折曲部12の上端に連設されると共に鉄筋６と接触する倒立Ｕ字状のガイド部７と、を有するので、鉄筋６を保持部材１に取り付け易く、かつ、保持部材１は鉄筋６を強固に保持できる。 Furthermore, the elastic arm 3 includes a linear first abdomen 8 that contacts the lower side half 13 of the reinforcing bar 6, a first bent part 11 that is bent inward from the upper end of the first abdomen 8, and a first A second abdomen 9 that is inclined inward and that is adjacent to or in contact with the upper side half 14 or the side side part 15 of the reinforcing bar 6 and is connected to the upper end of the bent part 11, and the outer side from the upper end of the second abdomen 9 The second bent portion 12 bent in the direction and the inverted U-shaped guide portion 7 that is connected to the upper end of the second bent portion 12 and contacts the reinforcing bar 6. 1 and the holding member 1 can hold the reinforcing bar 6 firmly.

本発明の実施の形態を示す斜視図である。 It is a perspective view which shows embodiment of this invention. 要部正面図である。It is a principal part front view. 要部側面図である。It is a principal part side view. 使用状態を示す斜視図である。It is a perspective view which shows a use condition. 要部正面図である。It is a principal part front view. 要部正面図である。It is a principal part front view.

符号の説明Explanation of symbols

１ 保持部材
２ 基部
３ 弾性腕部
４ 支持部
５ ブロック体
６ 鉄筋
７ ガイド部
８ 第１腹部
９ 第２腹部
11 第１折曲部
12 第２折曲部
13 側面下半部
14 側面上半部
16 側面横部 DESCRIPTION OF SYMBOLS 1 Holding member 2 Base part 3 Elastic arm part 4 Support part 5 Block body 6 Rebar 7 Guide part 8 1st abdomen 9 2nd abdomen
11 First bend
12 Second folding part
13 Lower half of side
14 Side upper half
16 Lateral side

Claims (2)

コンクリート又はモルタルから成るブロック体（５）と、一本の線材を折り曲げて形成した保持部材（１）と、を備え、該保持部材（１）は、上記ブロック体（５）の上部に埋設される基部（２）を有し、該基部（２）から、２種以上の鉄筋（６）の径に対応してそれぞれが２点乃至３点で該鉄筋（６）に接触する一対の鉄筋挟持用弾性腕部（３)(３）を連設し、さらに、上記保持部材（１）が鉄筋（６）を保持した状態に於て、該保持部材（１）の一対の弾性腕部（３)(３）の自由端側に、支持部（４)(４）を、上記鉄筋（６）の軸心方向にかつ互いに逆向きに備えていることを特徴とする鉄筋用スペーサ。 A block body (5) made of concrete or mortar, and a holding member (1) formed by bending a single wire, the holding member (1) being embedded in the upper portion of the block body (5). A pair of reinforcing bars sandwiched from the base part (2), each of which contacts the reinforcing bar (6) at two to three points corresponding to the diameter of two or more types of reinforcing bars (6). The elastic arm portions (3) and (3) are connected to each other, and the pair of elastic arm portions (3) of the holding member (1) in a state where the holding member (1) holds the reinforcing bar (6). ) (3) A reinforcing bar spacer characterized in that supporting portions (4) and (4) are provided on the free end side in the axial direction of the reinforcing bar (6) and in opposite directions . コンクリート又はモルタルから成るブロック体（５）と、一本の線材を折り曲げて形成した保持部材（１）と、を備え、該保持部材（１）は、上記ブロック体（５）の上部に埋設される基部（２）を有し、該基部（２）から、２種以上の鉄筋（６）の径に対応してそれぞれが２点乃至３点で該鉄筋（６）に接触する一対の鉄筋挟持用弾性腕部（３)(３）を連設し、さらに、上記弾性腕部（３）は、上記鉄筋（６）の側面下半部（13）と接触する直線状の第１腹部（８）と、該第１腹部（８）の上端から内方へ折り曲げた第１折曲部（11）と、該第１折曲部（11）の上端に連設されると共に上記鉄筋（６）の側面上半部（14）又は側面横部（15）に近接乃至接触する内方上傾状の第２腹部（９）と、該第２腹部（９）の上端から外方へ折り曲げた第２折曲部（12）と、該第２折曲部（12）の上端に連設されると共に上記鉄筋（６）と接触する倒立Ｕ字状のガイド部（７）と、を有することを特徴とする鉄筋用スペーサ。 A block body (5) made of concrete or mortar, and a holding member (1) formed by bending a single wire, the holding member (1) being embedded in the upper portion of the block body (5). A pair of reinforcing bars sandwiched from the base part (2), each of which contacts the reinforcing bar (6) at two to three points corresponding to the diameter of two or more types of reinforcing bars (6). Elastic arm portions (3) and (3) are provided continuously, and the elastic arm portion (3) is a linear first abdomen (8) that contacts the lower half (13) of the side surface of the reinforcing bar (6). ), A first bent portion (11) bent inward from the upper end of the first abdomen (8), and the reinforcing bar (6) connected to the upper end of the first bent portion (11). A second abdomen (9) tilted inwardly in proximity to or in contact with the upper side half (14) or side lateral part (15) of the first side, and the second abdomen (9) bent outward from the upper end of the second abdomen (9) It has a bent part (12) and an inverted U-shaped guide part (7) which is connected to the upper end of the second bent part (12) and contacts the reinforcing bar (6). rebar spacer to be.
JP2004293430A 2004-10-06 2004-10-06 Rebar spacer Expired - Fee Related JP4024788B2 (en)

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JP2004293430A JP4024788B2 (en) 2004-10-06 2004-10-06 Rebar spacer

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JP2004293430A JP4024788B2 (en) 2004-10-06 2004-10-06 Rebar spacer

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JP2009293235A (en) * 2008-06-04 2009-12-17 Honda Corporation:Kk Spacer for reinforced concrete

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