JP2011189391A - Gas pressure welding unit for reinforcing bar - Google Patents
Gas pressure welding unit for reinforcing bar Download PDFInfo
- Publication number
- JP2011189391A JP2011189391A JP2010058677A JP2010058677A JP2011189391A JP 2011189391 A JP2011189391 A JP 2011189391A JP 2010058677 A JP2010058677 A JP 2010058677A JP 2010058677 A JP2010058677 A JP 2010058677A JP 2011189391 A JP2011189391 A JP 2011189391A
- Authority
- JP
- Japan
- Prior art keywords
- gas pressure
- movable clamp
- pressure welding
- clamp part
- gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 42
- 238000003466 welding Methods 0.000 title claims abstract description 28
- 238000004904 shortening Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Abstract
Description
本発明は建築現場や土木現場等で利用される鉄筋をガス圧接する際に用いるガス圧接器、特には、２本の鉄筋を対向させて接合する端面間に、ガス圧接用環体を内蔵した環体保持部材が挟み込まれる作業を行うための隙間が得られる鉄筋のガス圧接器に関する。 The present invention is a gas pressure welder used for gas pressure welding of reinforcing bars used in construction sites, civil engineering sites, etc., and in particular, a gas pressure welding ring is built in between the end faces where two reinforcing bars are opposed to each other. The present invention relates to a gas pressure welder for a reinforcing bar that can provide a gap for performing an operation in which an annular body holding member is sandwiched.
従来、鉄筋のガス圧接器としては、圧接器本体の端部に固定クランプ部を固着し、圧接器本体の他端部に可動クランプ部を鉄筋の軸方向へ移動可能に設けると共に可動クランプ部よりも外側に圧接器本体の他端部にラム受を取付け、圧接器本体の内部にコイルバネを設けた構造のものである。このガス圧接器を使用する際、一方の鉄筋を固定クランプ部に締付ボルトを螺合して締付け固定させ、他方の鉄筋を可動クランプ部へ同様に締付ボルトを螺合して締付け固定する。両鉄筋の芯合せをした後、シリンダーに装着した油圧シリンダーを作動させて、そのラムにより、可動クランプ部が移動しながら接合面を押圧し、両鉄筋に所定の圧接力で加圧され、その後、加熱作業が行われていた。 Conventionally, as a gas pressure welder for a reinforcing bar, a fixed clamp is fixed to the end of the pressure welder body, and a movable clamp is provided at the other end of the pressure welder so as to be movable in the axial direction of the reinforcing bar. Also, a ram receiver is attached to the other end portion of the press contactor body on the outside, and a coil spring is provided inside the press contactor body. When using this gas pressure welder, tighten one of the reinforcing bars by screwing the fastening bolt into the fixed clamp part and tighten and fix the other reinforcing bar in the same way by screwing the fastening bolt into the movable clamp part. . After aligning both rebars, operate the hydraulic cylinder attached to the cylinder, and the ram presses the joint surface while the movable clamp moves, and pressurizes both rebars with the specified pressure contact force. The heating work was done.
しかしながら、可動クランプ部に鉄筋を締付ボルトで締付け固定する場合、鉄筋のふしを目安として、締付ボルトの位置を微調整して決め、確実な位置に固定するように、締付ボルトが締付けられている。この時、可動クランプ部を移動させる際には、コイルバネによって付勢された弾性力以上の力を外部から可動クランプ部に加え、締付ボルトの位置を微調整し、且つ、力を加えた状態で締付ボルトを締付けなければならなかった。このため、締付ボルトの微妙な位置調整に手間が多く掛っているのが現状であった。又、従来のガス圧接器の可動クランプ部とラム受の間に隙間（ガタ）をなくすために、コイルバネが設けられているため、本発明のようなガス圧接器の可動クランプ部とラム受の間に隙間（ガタ）を設ける発想はないものであった。 However, when tightening and fixing the reinforcing bar to the movable clamp with a tightening bolt, the position of the tightening bolt should be finely adjusted using the reinforcing bar as a guide, and the tightening bolt should be tightened so that it can be securely fixed. It has been. At this time, when moving the movable clamp part, a force greater than the elastic force urged by the coil spring is applied to the movable clamp part from the outside, the position of the tightening bolt is finely adjusted, and the force is applied. Had to tighten the bolts. For this reason, the current situation is that it takes much time to finely adjust the position of the tightening bolt. In addition, since a coil spring is provided to eliminate a gap (backlash) between the movable clamp part of the conventional gas pressure welder and the ram receiver, the movable clamp part of the gas pressure welder and the ram receiver as in the present invention are provided. There was no idea of providing a gap between them.
尚、鉄筋のガス圧接器としては、実公平４−５１０３２号が提案されている。この構造は、ガス圧接により接合されるべき鉄筋を把持して一方のクランプ部に固定し、他方のクランプ部は鉄筋と平行に移動し得るようにした圧接器本体に取付けた鉄筋のガス圧接器に於いて、前記可動クランプ部と圧接器本体との間に鉄筋圧接時の圧接力による可動クランプ部の後退を阻止するための係止手段を設けたものである。又、この目的は鉄筋圧接時、可動クランプ部は油圧シリンダーによって押動しているが、圧接力保持手段が設けられているため、油圧シリンダーを直ちに取外した時でもその圧接力を保持することができ、鉄筋接合部の拡散を十分に行わせるものであった。従って、実公平４−５１０３２号には、２本の鉄筋を対向させて接合する端面間に、ガス圧接用環体を内蔵した環体保持部材が挟み込まれる作業を行うための隙間が得られる作用効果は得られないと共にそのような発想もないものであった。 In addition, Japanese Utility Model Publication No. 4-51032 has been proposed as a gas pressure welding device for reinforcing steel bars. This structure grips the rebar to be joined by gas pressure welding and fixes it to one clamp part, and the other clamp part can be moved parallel to the rebar. In this case, a locking means is provided between the movable clamp portion and the pressure contactor main body to prevent the movable clamp portion from retreating due to the pressure contact force during rebar welding. Also, the purpose of this is to press the rebar, and the movable clamp part is pushed by the hydraulic cylinder, but since the pressure force holding means is provided, the pressure force can be held even when the hydraulic cylinder is removed immediately. It was possible to sufficiently diffuse the reinforcing bar joint. Accordingly, in Japanese Utility Model Publication No. 4-51032, there is obtained an operation for obtaining a gap for performing an operation in which an annular body holding member containing a gas pressure welding ring is sandwiched between end faces where two reinforcing bars are opposed to each other. The effect was not obtained and there was no such idea.
本発明は収納された環体のセット作業が極めて簡単で且つ安全に行うことが可能となる鉄筋のガス圧接器を提供することを目的とする。 An object of the present invention is to provide a gas pressure welding device for a reinforcing bar, in which a set operation of a stored ring body is extremely simple and can be performed safely.
本発明は上記現状に鑑み成されたものであり、つまり、従来のガス圧接器に対して、可動クランプ部とラム受の間に隙間を設ける構造と成す。また可動クランプ部に引掛部を固着し、ラム受の外周に支点用固定棒を固着させると良い。又、前記隙間は圧接器本体の内部に設けたコイルバネの長さを短くして得るのが好ましく、前記隙間として１０mm〜５０mmとするのが良い。 The present invention has been made in view of the above-described situation. That is, the present invention has a structure in which a gap is provided between the movable clamp portion and the ram receiver with respect to the conventional gas pressure welding device. Further, it is preferable that the hook portion is fixed to the movable clamp portion, and the fulcrum fixing rod is fixed to the outer periphery of the ram receiver. The gap is preferably obtained by shortening the length of the coil spring provided inside the pressure contactor body, and the gap is preferably 10 mm to 50 mm.
請求項１のように従来のガス圧接器の可動クランプ部（３）とラム受（４）の間に隙間（Ｌ）を設けることにより、対向させて２本の鉄筋（Ｗ）をガス圧接器に固定させる場合、固定クランプ部（２）に一方の鉄筋（Ｗ）を締付ボルト（９）で締付け固定した後、可動クランプ部（３）に他方の鉄筋（Ｗ）を固定する時に、コイルバネによる付勢された弾性力が働いていないので、可動クランプ部（３）は手で簡単に移動させて、締付ボルト（９）の微妙な位置調整が簡単に行えるものとなる。それと同時に環体保持部材（Ａ）のセット作業が極めて簡単で且つ安全に行うことが出来るものとなる。 The gap (L) is provided between the movable clamp part (3) and the ram receiver (4) of the conventional gas pressure welder as in claim 1 so that the two reinforcing bars (W) are opposed to each other. When fixing one reinforcing bar (W) to the fixed clamp part (2) with the fastening bolt (9), the coil spring is used to fix the other reinforcing bar (W) to the movable clamp part (3). Since the elastic force urged by is not working, the movable clamp part (3) can be easily moved by hand, and the fine position adjustment of the tightening bolt (9) can be easily performed. At the same time, the setting operation of the annular body holding member (A) can be performed very easily and safely.
請求項２のように可動クランプ部（３）に引掛部（６）を固着し、ラム受（４）の外周に支点用固定棒（７）を固着させることにより、丸棒や工具の柄などを利用し、それを引掛部（６）に差込み且つ支点用固定棒（７）に絡めてそれを支点として、可動クランプ部（３）を移動させることが出来るため、２本の鉄筋（Ｗ）の接合面が離れて隙間（Ｌ）を簡単に確保でき、その隙間（Ｌ）からガス圧接用環体（Ｒ）を内蔵した環体保持部材（Ａ）が一方の鉄筋（Ｗ）に取付け、且つ、丸棒や工具の柄などを引掛部（６）から抜けば、ガス圧接用環体（Ｒ）が内蔵された環体保持部材（Ａ）を２本の鉄筋（Ｗ）に挟み込まれて環体保持部材（Ａ）のセットがスムーズに完了することが出来るものとなる。 As shown in claim 2, the hook (6) is fixed to the movable clamp part (3), and the fulcrum fixing bar (7) is fixed to the outer periphery of the ram receiver (4). Can be moved into the hooking portion (6) and entangled with the fulcrum fixing rod (7) to move the movable clamp portion (3) as a fulcrum, so that two rebars (W) Can be easily secured by separating the joint surface of the ring, and the ring holding member (A) containing the gas pressure welding ring (R) is attached to one of the reinforcing bars (W) from the gap (L), And if a round bar, a handle of a tool, etc. are pulled out from the hook part (6), the annular body holding member (A) containing the annular body for gas pressure welding (R) is sandwiched between the two reinforcing bars (W). The ring body holding member (A) can be set smoothly.
請求項３に示すように隙間（Ｌ）を、圧接器本体（１）の内部に設けたコイルバネ（５）の長さを短くして得ることにより、ガス圧接器の構造を変更することなく且つ部品を新たに追加することなく、ガス圧接用環体（Ｒ）が内蔵された環体保持部材（Ａ）を２本の鉄筋（Ｗ）間に挟み込むための隙間（Ｌ）を簡単に得られるものとなる。このため、殆どコストアップせずに製作が可能となる。 By obtaining the gap (L) by shortening the length of the coil spring (5) provided inside the pressure contactor body (1) as shown in claim 3, without changing the structure of the gas pressure contactor and A gap (L) for sandwiching the annular body holding member (A) containing the gas pressure welding ring (R) between the two reinforcing bars (W) can be easily obtained without newly adding parts. It will be a thing. For this reason, it becomes possible to manufacture without substantially increasing the cost.
請求項４に示すように隙間（Ｌ）として１０mm〜５０mmにすることにより、必要最小限で作業を行えるガタが確保されるものとなり、環体保持部材（Ａ）の取付作業が効率良く行えるものとなる。 As shown in claim 4, by setting the clearance (L) to 10 mm to 50 mm, it is possible to secure the play that can be performed with the minimum necessary, and the mounting work of the annular body holding member (A) can be performed efficiently. It becomes.
本発明者によって提案された特願２００８−３２９８１４などのガス圧接方法に於いて、ガス圧接器に２本の鉄筋（Ｗ）を対向させて取付けた後、その端面間に、ガス圧接用環体（Ｒ）が内蔵された環体保持部材（Ａ）を簡単に挟み込む作業が行えるという目的を、従来のガス圧接器に対して少なくとも、可動クランプ部（３）とラム受（４）の間に隙間（Ｌ）を設けることにより実現した。 In a gas pressure welding method such as Japanese Patent Application No. 2008-329814 proposed by the present inventor, two rebars (W) are attached to a gas pressure welder so as to face each other, and then a gas pressure welding ring is provided between the end faces. The purpose of performing the operation of easily sandwiching the annular body holding member (A) in which (R) is incorporated is at least between the movable clamp part (3) and the ram receiver (4) with respect to the conventional gas pressure welder. This was realized by providing a gap (L).
図１、図２は本発明の実施形態を示す図であり、この図に基づいて説明する。（１）はガス圧接する際に使用するガス圧接器の筒状の圧接器本体であり、該圧接器本体（１）の開口側には、後述する可動クランプ部（３）が移動するためのスリ割（11）が形成されている。尚、このスリ割（11）は縮み量を考慮して長めに確保しておくのが好ましい。（２）は圧接器本体（１）の閉鎖側の端部に一体化して固着させた固定クランプ部であり、（３）は圧接器本体（１）の開口側の端部に設けると共に鉄筋（Ｗ）の軸方向へ移動可能な可動クランプ部であり、該可動クランプ部（３）の基部には圧接器本体（１）の内部に挿入した移動可能なパイプ（31）が用いられ、そのパイプ（31）の基部側は閉鎖されている。（４）は圧接器本体（１）の開口側端部に固着したラム受であり、該ラム受（４）には略Ｌ字状の係止穴（41）が複数個穿設されている。（５）は可動クランプ部（３）の内部に挿入され且つ圧接器本体（１）の内部に設けたコイルバネである。前記圧接器本体（１），固定クランプ部（２），可動クランプ部（３），ラム受（４），コイルバネ（５）は、既存の構造や材質と略同一で良いが、前記コイルバネ（５）は、その長さを短くしたものが用いられている。つまり、図１の状態で、可動クランプ部（３）の端面がラム受（４）の端面と密着せず、隙間（Ｌ）が得られるコイルバネ（５）の長さである。具体的な隙間（Ｌ）の寸法としては、１０mm〜５０mmとするのが良い。又、前記固定クランプ部（２）と可動クランプ部（３）には締付ボルト（９）がそれぞれに設けられている。尚、前記隙間（Ｌ）が設けられる方法としては、上記のようにコイルバネ（５）の長さを短くすること以外に、前記圧接器本体（１）を長くして、可動クランプ部（３）とラム受（４）間に隙間（Ｌ）を設けるようにしても良い。更に図1の状態に於いて、可動クランプ部（３）の端面と、圧接器本体（１）の開口側端面との間に別のバネを設ける。このバネはガス圧接器の運搬中に可動クランプ部（３）のガタ付きをなくす役目を果すものとなる。また、このバネの強度としては、例えば、鉄筋（Ｗ）を可動クランプ部（３）に締付ボルト（９）で固定させる際に、手で可動クランプ部（３）が移動できる程度の強さとするのが好ましい。 FIG. 1 and FIG. 2 are diagrams showing an embodiment of the present invention, which will be described based on this figure. (1) is a cylindrical pressure welder body of a gas pressure welder used for gas pressure welding, and a movable clamp part (3) to be described later is moved to the opening side of the pressure welder body (1). A slot (11) is formed. The slit (11) is preferably secured longer in consideration of the amount of shrinkage. (2) is a fixed clamp part integrated and fixed to the closed end of the pressure welder body (1), and (3) is provided at the end of the pressure welder body (1) on the opening side and a reinforcing bar ( W) is a movable clamp part that is movable in the axial direction, and a movable pipe (31) inserted into the inside of the press contactor body (1) is used as a base part of the movable clamp part (3). The base side of (31) is closed. (4) is a ram receiver fixed to the opening side end of the pressure contactor body (1), and the ram receiver (4) has a plurality of substantially L-shaped locking holes (41). . (5) is a coil spring inserted into the movable clamp part (3) and provided inside the pressure contactor body (1). The pressure contactor body (1), the fixed clamp part (2), the movable clamp part (3), the ram receiver (4), and the coil spring (5) may be substantially the same as existing structures and materials, but the coil spring (5 ) Is used with a shorter length. That is, in the state of FIG. 1, the length of the coil spring (5) is such that the end face of the movable clamp portion (3) is not in close contact with the end face of the ram receiver (4) and a gap (L) is obtained. The specific dimension of the gap (L) is preferably 10 mm to 50 mm. The fixed clamp part (2) and the movable clamp part (3) are each provided with a fastening bolt (9). In addition, as a method of providing the gap (L), in addition to shortening the length of the coil spring (5) as described above, the pressure contactor body (1) is lengthened, and the movable clamp portion (3). A gap (L) may be provided between the ram receiver (4). Further, in the state shown in FIG. 1, another spring is provided between the end face of the movable clamp portion (3) and the end face on the opening side of the press contactor body (1). This spring serves to eliminate the backlash of the movable clamp part (3) during transportation of the gas pressure welder. The strength of the spring is, for example, such a strength that the movable clamp part (3) can be moved by hand when the reinforcing bar (W) is fixed to the movable clamp part (3) with the fastening bolt (9). It is preferable to do this.
（６）は可動クランプ部（３）のラム受（４）側に溶接などで固着した引掛部であり、該引掛部（６）は、逆Ｕ字状や逆Ｌ字状等に形成するのが好ましい。（７）はラム受（４）の外周で且つ水平に溶接などで固着させた支点用固定棒であり、該支点用固定棒（７）の取付位置としては、図示しない棒材やラッチェットなどの柄の先端が引掛部（６）に挿入された際に、棒や柄の中間部に当接して支点の役目を果すと共に可動クランプ部（３）が容易に移動できる位置を支点用固定棒（７）の取付位置とするのが好ましい。（８）は偏心調整ネジであり、これはガス圧接器に始めから付いている。 (6) is a hook part fixed to the ram receiver (4) side of the movable clamp part (3) by welding or the like, and the hook part (6) is formed in an inverted U shape, an inverted L shape, or the like. Is preferred. (7) is a fulcrum fixing rod fixed by welding or the like on the outer periphery of the ram receiver (4). The mounting position of the fulcrum fixing rod (7) may be a bar or ratchet (not shown). When the tip of the handle is inserted into the hooking portion (6), the fulcrum fixing rod (the fulcrum fixing rod (3) is moved to the position where the movable clamp portion (3) can easily move while abutting against the intermediate portion of the rod or handle. The mounting position of 7) is preferable. (8) is an eccentricity adjusting screw, which is attached to the gas pressure connector from the beginning.
図３は本発明の作用を示す図であり、これについて説明する。先ず始めに本発明品を使用して２本の鉄筋（Ｗ）を対向させて取付ける場合には、先ず、一方の鉄筋（Ｗ）を固定クランプ部（２）に締付ボルト（９）で固定し、他方の鉄筋（Ｗ）を可動クランプ部（３）に締付ボルト（９）で固定する。この時、従来のコイルバネ（５）と異なり、付勢されてないため、手で可動クランプ部（３）が簡単に移動するものとなる。従って、鉄筋（Ｗ）の固定時に行っていた締付ボルト（９）の微妙な位置調整が容易に行えると共にその固定も簡単に行うことが可能となった。 FIG. 3 is a diagram showing the operation of the present invention, which will be described. First, when mounting the two reinforcing bars (W) facing each other using the product of the present invention, first, fix one of the reinforcing bars (W) to the fixed clamp part (2) with the fastening bolt (9). Then, the other reinforcing bar (W) is fixed to the movable clamp part (3) with the fastening bolt (9). At this time, unlike the conventional coil spring (5), since it is not biased, the movable clamp part (3) can be easily moved by hand. Therefore, it is possible to easily perform the fine position adjustment of the tightening bolt (9), which has been performed at the time of fixing the reinforcing bar (W), and to easily fix the bolt.
前記可動クランプ部（３）に鉄筋（Ｗ）を固定した後、図３（ａ）に示すように、丸棒やラッチェットの柄などの先端を引掛部（６）に挿入し且つ前記丸棒などの中間部に支点用固定棒（７）を当接させ、前記丸棒などを図中の点線矢印のように動かし、テコの要領で可動クランプ部（３）を上方へ矢印のように移動させると、可動クランプ部（３）はラム受（４）に当接する。つまり、可動クランプ部（３）がガタ分移動することにより、鉄筋（Ｗ）の端面間には隙間（Ｌ）が図３（ｂ）のように確保できるのである。この隙間（Ｌ）を利用し、ガス圧接用環体（Ｒ）が内蔵された環体保持部材（Ａ）を簡単に挟み込む作業が行えるものとなる。つまり、予め用意した前記環体保持部材（Ａ）を、一方の鉄筋（Ｗ）の端面に取付ければ良い。尚、前記ガス圧接用環体（Ｒ）を内蔵した環体保持部材（Ａ）としては、本発明者の提案した特願２０１０−０４７３４５などを用いるのが良い。 After the reinforcing bar (W) is fixed to the movable clamp part (3), as shown in FIG. 3 (a), a tip of a round bar or a ratchet handle is inserted into the hook part (6) and the round bar or the like. The fulcrum fixing rod (7) is brought into contact with the middle portion of the slidable rod, the round bar or the like is moved as indicated by the dotted line arrow in the figure, and the movable clamp portion (3) is moved upward as indicated by the arrow in the manner of lever. Then, the movable clamp part (3) comes into contact with the ram receiver (4). That is, by moving the movable clamp part (3) by the backlash, a gap (L) can be secured between the end faces of the reinforcing bars (W) as shown in FIG. Using this gap (L), it is possible to easily sandwich the annular body holding member (A) containing the gas pressure welding ring (R). That is, the ring body holding member (A) prepared in advance may be attached to the end face of one of the reinforcing bars (W). As the annular body holding member (A) incorporating the gas pressure welding ring (R), Japanese Patent Application No. 2010-047345 proposed by the present inventor may be used.
この環体保持部材（Ａ）が鉄筋（Ｗ）の端面間に挟持される方法を詳細に説明する。図３（ｂ）の状態で、先ず始めに環体保持部材（Ａ）を片手に持ち、その開口側を一方の鉄筋（Ｗ）の端面に挿入して嵌め込むと、図３（ｃ）のようになる。その後、丸棒などを引掛部（６）から抜けば良い。この時、２本の鉄筋（Ｗ）が垂直方向に取付けられている時には、可動クランプ部（３）は自重で落下し、鉄筋（Ｗ）の端面間に環体保持部材（Ａ）は図３（ｄ）のように挟まれるのである。又、２本の鉄筋（Ｗ）が水平方向に取付けられている時には、可動クランプ部（３）を元の方向に移動させて戻すことにより、鉄筋（Ｗ）の端面間に環体保持部材（Ａ）が挟まれるのである。これで鉄筋（Ｗ）のセットが完了する。このように本発明品を用いれば、環体保持部材（Ａ）が鉄筋（Ｗ）の接合面へ簡単にセットできるものとなるのである。 A method of sandwiching the annular body holding member (A) between the end faces of the reinforcing bars (W) will be described in detail. In the state shown in FIG. 3 (b), first, the ring body holding member (A) is held in one hand, and the opening side is inserted into the end face of one of the reinforcing bars (W). It becomes like this. Thereafter, a round bar or the like may be removed from the hooking portion (6). At this time, when the two reinforcing bars (W) are attached in the vertical direction, the movable clamp part (3) falls by its own weight, and the annular body holding member (A) is located between the end faces of the reinforcing bars (W). It is sandwiched as shown in (d). Also, when the two reinforcing bars (W) are attached in the horizontal direction, the movable clamp portion (3) is moved back to the original direction to return the annular member holding member (between the end faces of the reinforcing bars (W) ( A) is sandwiched. This completes the setting of the reinforcing bars (W). Thus, if the product of the present invention is used, the annular body holding member (A) can be easily set on the joint surface of the reinforcing bar (W).
その後の作業は、本発明者の提案したガス圧接作業を行えば良い。つまり、シリンダーに装着した油圧シリンダーを作動させて、そのラムにより、可動クランプ部（２）が移動しながら接合面を押圧し、両鉄筋（Ｗ）に所定の圧接力で従来工程同様に加圧させて、上限圧に達するまで加圧させた後、バーナーに着火させ、初期加熱と後期加熱を連続して行えば、良好なコブが形成され、良好な接合部分が得られるのである。 The subsequent work may be performed by the gas pressure welding work proposed by the present inventor. In other words, the hydraulic cylinder attached to the cylinder is operated, and the ram presses the joint surface while the movable clamp part (2) moves, and pressurizes both reinforcing bars (W) with a predetermined pressure contact force as in the conventional process. Then, after pressurizing until reaching the upper limit pressure, if the burner is ignited and the initial heating and the latter heating are continuously performed, a good bump is formed and a good joint portion is obtained.
Ｗ 鉄筋
Ｌ 隙間
１ 圧接器本体
２ 固定クランプ部
３ 可動クランプ部
４ ラム受
５ コイルバネ
６ 引掛部
７ 支点用固定棒
W Reinforcing bar L Gap 1 Pressure welder body 2 Fixed clamp part 3 Movable clamp part 4 Ram receiver 5 Coil spring 6 Hook part 7 Fixed rod for fulcrum
Claims (4)
The rebar gas pressure welder according to claim 1 or 3, wherein the gap (L) is 10 mm to 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010058677A JP5302249B2 (en) | 2010-03-16 | 2010-03-16 | Rebar gas pressure welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010058677A JP5302249B2 (en) | 2010-03-16 | 2010-03-16 | Rebar gas pressure welder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2011189391A true JP2011189391A (en) | 2011-09-29 |
| JP5302249B2 JP5302249B2 (en) | 2013-10-02 |
Family
ID=44794864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010058677A Active JP5302249B2 (en) | 2010-03-16 | 2010-03-16 | Rebar gas pressure welder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5302249B2 (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5222553A (en) * | 1975-08-15 | 1977-02-19 | Fumiaki Ikeda | Metal pressure welding process and device thereof |
| JPS573482U (en) * | 1980-06-06 | 1982-01-08 | ||
| JPH079577U (en) * | 1992-12-28 | 1995-02-10 | 助松 岩下 | Crimping machine |
| JPH08174237A (en) * | 1994-12-28 | 1996-07-09 | Sukematsu Iwashita | Reinforcing bar clamping device of pressure welding machine |
| JPH08332579A (en) * | 1995-06-05 | 1996-12-17 | Ishikawajima Harima Heavy Ind Co Ltd | Butt welding method |
| JPH09267185A (en) * | 1996-03-29 | 1997-10-14 | Nippon Setsugou Gijutsu Kk | Gas press welding machine |
| JPH09308974A (en) * | 1996-05-22 | 1997-12-02 | Dia:Kk | Gas welding with pressure method |
| JPH1052765A (en) * | 1996-08-09 | 1998-02-24 | Sukematsu Iwashita | Pressure welding equipment for reinforcing bar |
| JPH11117531A (en) * | 1997-10-15 | 1999-04-27 | Daia:Kk | Reinforcing bar holding equipment for pressure welding |
| JP2002254177A (en) * | 2001-02-28 | 2002-09-10 | Hakusan Mfg Co Ltd | Press-contact machine |
| JP2002283065A (en) * | 2001-03-27 | 2002-10-02 | Hakusan Mfg Co Ltd | Punching blade and pressure welding machine |
| JP3103998U (en) * | 2004-03-12 | 2004-08-26 | 北興鉄筋有限会社 | Reinforcing material holder for pressure welding |
-
2010
- 2010-03-16 JP JP2010058677A patent/JP5302249B2/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5222553A (en) * | 1975-08-15 | 1977-02-19 | Fumiaki Ikeda | Metal pressure welding process and device thereof |
| JPS573482U (en) * | 1980-06-06 | 1982-01-08 | ||
| JPH079577U (en) * | 1992-12-28 | 1995-02-10 | 助松 岩下 | Crimping machine |
| JPH08174237A (en) * | 1994-12-28 | 1996-07-09 | Sukematsu Iwashita | Reinforcing bar clamping device of pressure welding machine |
| JPH08332579A (en) * | 1995-06-05 | 1996-12-17 | Ishikawajima Harima Heavy Ind Co Ltd | Butt welding method |
| JPH09267185A (en) * | 1996-03-29 | 1997-10-14 | Nippon Setsugou Gijutsu Kk | Gas press welding machine |
| JPH09308974A (en) * | 1996-05-22 | 1997-12-02 | Dia:Kk | Gas welding with pressure method |
| JPH1052765A (en) * | 1996-08-09 | 1998-02-24 | Sukematsu Iwashita | Pressure welding equipment for reinforcing bar |
| JPH11117531A (en) * | 1997-10-15 | 1999-04-27 | Daia:Kk | Reinforcing bar holding equipment for pressure welding |
| JP2002254177A (en) * | 2001-02-28 | 2002-09-10 | Hakusan Mfg Co Ltd | Press-contact machine |
| JP2002283065A (en) * | 2001-03-27 | 2002-10-02 | Hakusan Mfg Co Ltd | Punching blade and pressure welding machine |
| JP3103998U (en) * | 2004-03-12 | 2004-08-26 | 北興鉄筋有限会社 | Reinforcing material holder for pressure welding |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5302249B2 (en) | 2013-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6208359B2 (en) | Reinforcing bar coupler for spiral rebar | |
| JP2010155264A (en) | Joining jig | |
| KR101895661B1 (en) | Coupler for steel bar | |
| JP5302249B2 (en) | Rebar gas pressure welder | |
| JP2008121226A (en) | Prestress introduction device and its anchor structure | |
| JP2013117150A (en) | Reinforcing-bar bonding jig | |
| JP2011236595A (en) | Seam fastener | |
| JP2010150829A (en) | Reinforcement joint structure and method for constructing reinforcement joint | |
| JP6571345B2 (en) | Prestressing method for concrete structures | |
| JP6408397B2 (en) | PC steel bar unit tightening force measuring device | |
| CN202411765U (en) | Butt welding clamp for steel bars | |
| CN203062290U (en) | Internal-and-external-linkage type clamping device | |
| JP7282641B2 (en) | Pressure welding jig for rebar | |
| KR101801809B1 (en) | Device for applying pre-stress of tubular structure | |
| KR200475224Y1 (en) | Concrete mold assembly | |
| JP4382599B2 (en) | Tension jack | |
| CN201249442Y (en) | Multi-porous cast iron platform with clamping apparatus | |
| JP4112434B2 (en) | Reinforcing material joining method for reinforcing bars by arc stud welding | |
| KR20100007553A (en) | Steel reinforcing coupler of adjustable an angle | |
| JP2008111271A (en) | Catch clamp of scaffold fixing device | |
| JPH09228556A (en) | Joint for bar like body | |
| JP3103998U (en) | Reinforcing material holder for pressure welding | |
| JP5645140B2 (en) | Wedge-shaped retention clamp | |
| JP2023058229A (en) | Method and tool for bending reinforcement | |
| JP3147699U (en) | Reinforced concrete structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20111215 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130122 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130611 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130620 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5302249 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |