JP2010053546A - Reinforcement connecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcement connecting device capable of surely holding and connecting a straight bar reinforcement and an L-reinforcement in a predetermined orthogonal state and enabling easy and smooth connecting operation. <P>SOLUTION: This reinforcement connection device 10 connects the straight bar reinforcement 104, which is installed horizontally and the L-reinforcement 106 having a vertical bar part 106a, which is an L-shape and vertically extending and a horizontal bar part 106b horizontally extending from the bottom end of the vertical bar part, while the straight bar reinforcement 104 is disposed at the L-corner 106c of the L-reinforcement, in such a manner that both the vertical bar part 106a and the horizontal bar part 106b of the L-reinforcement are orthogonal to the straight bar reinforcement 104. The reinforcement connecting device comprises a first hooking part 12, hooked to the straight bar reinforcement 104 and a second hooking part 14 which is connected to the first hooking part 12 and hooked to the vertical bar part 106a of the L-reinforcement and which holds the orthogonal state of the L-reinforcement 106 and the straight bar reinforcement 104, while preventing toppling of the L-reinforcement. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a reinforcing bar connector used to connect a straight bar reinforcing bar and an L-type reinforcing bar, for example, when reinforcing bars used in a reinforced concrete structure are arranged.

  In some cases, a reinforced concrete structure is used to ensure strength when constructing structures such as civil engineering and buildings. As shown in FIGS. 20 and 21, for example, in a relatively small-scale exterior such as a block fence F or a retaining wall, the foundation 100 lays the crushed stone 102 or the like after excavating the ground G at a predetermined position, Next, the straight straight bar 104 and the L-shaped rebar 106 bent in an L-shape are arranged, and the formwork is put into the concrete. After the concrete is solidified, the formwork is removed and formed. Then, the vertical bars 106a and the like of the L-type reinforcing bars 106 are inserted into the openings of the concrete block 108 on the foundation 100 and stacked, and the concrete blocks 108 are fixed to each other with concrete or mortar, so that (For example, refer to Patent Document 1). As shown in FIG. 22, in the work of arranging the straight bar reinforcing bar and the L-type reinforcing bar at the time of constructing the foundation part 100, the vertical bar part 106 a that stands up vertically by arranging the straight bar reinforcing bars 104 in parallel in the horizontal direction. And a plurality of L-type reinforcing bars 106 including horizontal bar portions 106b horizontally disposed from the lower ends of the vertical bar portions 106a are arranged at predetermined intervals along the longitudinal direction of the straight bar reinforcing bars 104. In the L-type reinforcing bar 106, the vertical bar part 106 a and the horizontal bar part 106 b are crossed so as to be orthogonal to the straight bar reinforcing bar 104 while the straight bar reinforcing bar 104 is disposed inside the L-shaped corner position 106 c. Be placed. Conventionally, for example, two reinforcing bars 104 and 106 that intersect in a perpendicular state are connected to each other by an iron wire in the vicinity of the L-shaped corner 106c so that the straight bar reinforcing bar 104 and the L-shaped reinforcing bar 106 do not deviate from a predetermined crossing position. They were united and connected.

Japanese Patent Laid-Open No. 10-266223 (specifications “conventional technology”, FIGS. 7 and 8)

  However, for example, it is difficult to sufficiently maintain the predetermined orthogonal state between the straight bar reinforcing bar and the L-type reinforcing bar only by binding the orthogonal part of the straight bar reinforcing bar and the L-type reinforcing bar with the iron wire as described above. Since the vertical bar portion 106a of the L-type reinforcing bar standing up vertically is relatively long, as shown by the phantom line in FIG. 22, the vertical bar portion 106a of the L-type reinforcing bar 106a falls down sideways or poured concrete. There was a problem that it was easy to fall sideways by hitting the concrete poured into it or its work equipment. For example, a method of constructing a temporary reinforcing bar support structure by arranging other reinforcing bars and plate materials to support the L-type reinforcing bar in an auxiliary manner is also conceivable. It was necessary to remove temporary reinforcing bars, etc., and the labor involved in the construction of the entire foundation was large, which was time consuming and expensive. Furthermore, since the L-type rebar is likely to wobble during the work of binding the straight bar and L-type rebars, it is difficult for one person to support the L-type rebar and wind the wire. In addition, it is cumbersome and time-consuming, and it takes a lot of labor and time because it is performed in a middle and lower back posture.

  The present invention has been made in view of the above-described conventional problems, and one object of the present invention is to connect a straight bar rebar and an L-type rebar while maintaining a predetermined orthogonal state reliably and easily and smoothly. An object of the present invention is to provide a reinforcing bar connector capable of performing work.

  In order to solve the above-described problems, the present invention is arranged horizontally from a straight rectilinear reinforcing bar 104 installed horizontally, a vertical bar portion 106a bent in an L shape and rising vertically, and a lower end of the vertical bar portion. The L-type reinforcing bar 106 including the horizontal bar part 106b, and the vertical bar part 106a of the L-type reinforcing bar 106b and the horizontal bar part 106b while arranging the straight bar reinforcing bar 104 at the L-shaped corner position 106c of the L-type reinforcing bar. Both are reinforcing bar couplers that are connected in a state of being orthogonal to the straight bar reinforcing bar 104, and are connected to the first engaging part 12 and the first engaging part 12 that are engaged with the straight bar reinforcing bar 104, and are L-shaped. And a second engaging portion 14 that is engaged with the vertical bar portion 106a of the reinforcing bar and holds the L-shaped reinforcing bar 106 and the straight reinforcing bar 104 in an orthogonal state while preventing the L-type reinforcing bar from falling down. It is comprised from the reinforcing bar connector 10 which does.

  Further, the second engaging portion 14 is provided integrally with the arcuate cylindrical member 26 applied along the longitudinal direction of the vertical bar portion 106a of the L-shaped reinforcing bar 106a and the arc-shaped cylindrical member 18 so as to be integrated with the L-shaped reinforcing bar 106. It is good also as including the holding | maintenance part 28 holding the state applied to.

  In addition, the first engaging portion 12 is provided in an arcuate cylindrical member 16 that is applied along the longitudinal direction of the straight bar rebar 104, and is provided integrally with the arcuate cylindrical member 16 and is attached to the straight bar rebar 104. And holding the lower end side of the arcuate cylindrical member 16 of the second engaging part 14 to the middle position of the arcuate cylindrical member 16 of the first engaging part 12, It may be configured in a T shape. That is, the arcuate cylindrical member 26 of the second engaging part 14 is fixed perpendicularly to the arcuate cylindrical member 16 of the first engaging part 12 and can maintain a predetermined orthogonal state of the L-shaped reinforcing bars. Further, for example, when it is configured so that other components and members do not exist below the first engaging portion 12, it is necessary to arrange other reinforcing bars along the horizontal bar portion of the L-shaped reinforcing bars. However, it does not become an obstacle to the other reinforcing bars, and can be practically used in various arrangements of reinforcing bars.

  The holding portions 18 and 28 are formed in a substantially C shape, and the clip piece portions 22 and 32 that are engaged with the reinforcing bars 104 and 106 in a fitting manner by expanding and reducing the C-shaped openings 22 a and 32. It is good also as including.

  The straight bar 104 and the L-type reinforcing bar 106 are deformed bars in which nodes 110 are provided at predetermined intervals in the longitudinal direction, and the first engaging portion 12 and / or the second engaging portion 14 are arcuate cylindrical members 16. , 26 is provided on the contact surface side of the deformed reinforcing bar 26 and engages with the deformed reinforcing bar node 110 to engage with the deformed reinforcing bar 110 so as to restrict the displacement of the deformed reinforcing bar in the longitudinal direction of the arc-shaped cylindrical members 16, 26. It may be provided. Basically, the uneven portion 36 does not need to be provided, but if the uneven portion 36 is provided, the function of preventing misalignment can be improved. The concavo-convex portion 36 may be provided, for example, only in a part of the arcuate cylindrical members 16, 26 in the longitudinal direction or the arcuate length direction, or may be formed throughout. The concave-convex portion 36 may have any other configuration such as forming a concave groove 38 on the arc inner surface of the arc-shaped cylindrical member, conversely projecting a convex portion from the arc inner surface, or cutting a part thereof. The interval between the concavo-convex portions may be, for example, an interval corresponding to the interval between the nodes 110 of the deformed reinforcing bar, or a configuration in which the concavo-convex portions are formed more densely (with shorter intervals) than the interval between the nodes.

  In addition, it includes a third engagement portion 46 that is connected downward from the first engagement portion 12 and is engaged with the horizontal bar portion 106b of the L-type reinforcing bar so as to penetrate the hole so as to support the horizontal bar portion. It is good as well. It is preferable that the side bar portion 106b of the L-type reinforcing bar is engaged with the side and the lower side.

  Moreover, the 3rd engaging part 46 is good also as including the 1 or 1 pair of strip | belt-shaped holding | grip piece 48 engaged with the horizontal bar part 106b of an L-type reinforcing bar in a winding form.

  The third engaging portion 46 is a thin metal plate integrally formed with the arcuate cylindrical member 16 of the first engaging portion, and includes a through hole 52 that penetrates the horizontal bar portion 106b of the L-type reinforcing bar, and a through hole. It is good also as consisting of the metal thin plate 51 which has the notch part 54 smaller than the diameter of the horizontal bar part which connects the inside of the hole 52, and the outer side.

  According to the reinforcing bar connector of the present invention, a straight straight bar reinforcing bar that is horizontally installed, a vertical bar portion that is bent in an L shape and rises vertically, and a horizontal bar that is horizontally disposed from the lower end of the vertical bar portion. An L-type reinforcing bar including a bar part, and a vertical bar part and a horizontal bar part of the L-type reinforcing bar are both arranged with respect to the straight bar reinforcing bar while arranging the straight reinforcing bar at the L-shaped corner position of the L-type reinforcing bar. Reinforcing bar connecting tool that is connected in a state of being orthogonal to each other, a first engaging part that is engaged with a straight bar reinforcing bar, a first engaging part that is connected to the first engaging part, and is engaged with a vertical bar part of the L-type reinforcing bar. And a second engaging part that maintains the orthogonal state between the L-type reinforcing bar and the straight bar reinforcing bar while preventing collapse, so that the first engaging part is a straight bar reinforcing element and the second engaging part is an L-type. Since the L-type reinforcing bar is supported by the second engaging part when being engaged with the reinforcing bar, the straight bar reinforcing bar and the L-type reinforcing bar can be connected while maintaining a predetermined orthogonal state.At the same time, one person can easily perform the connecting operation as compared with the conventional wire winding operation. Therefore, the work of the whole construction can be performed smoothly, and labor saving, shortening of the construction period, and reduction of construction cost can be realized.

  In addition, the second engaging portion has an arcuate cylindrical member that is applied along the longitudinal direction of the vertical bar portion of the L-shaped reinforcing bar, and a state in which the second engaging portion is integrally provided with the arc-shaped cylindrical member and is attached to the L-shaped reinforcing bar. The structure includes a holding portion that holds, and has a simple structure, can be easily attached to the vertical bar portion of the L-type reinforcing bar, and can support the vertical bar portion well, and the L-type reinforcing bar can be collapsed. A predetermined orthogonal state can be reliably maintained while being effectively prevented.

  In addition, the first engaging portion includes an arcuate cylindrical member that is applied along the longitudinal direction of the straight bar reinforcing bar, and a holding unit that is provided integrally with the arcuate cylindrical member and holds a state of being applied to the straight bar reinforcing bar. And by connecting the lower end side of the arcuate cylindrical member of the second engagement part to the middle position of the arcuate cylindrical member of the first engagement part, A structure in which the first engaging portion and the second engaging portion are firmly connected in a vertical state can be easily realized, and a predetermined orthogonal state can be reliably maintained. Moreover, it can be manufactured easily and can be produced at low cost.

  In addition, the holding portion is formed in a substantially C shape, and includes a clip piece portion that is enlarged and reduced in size to reduce the C-shaped opening and is engaged with each reinforcing bar. The attachment operation to each reinforcing bar of the engaging part can be easily performed, and at the same time, the reinforcing part can be tightened by the clip piece to maintain the mounting state of the first and second engaging parts to the reinforcing bar. A predetermined orthogonal state with the reinforcing bar can be maintained.

  Further, the straight bar reinforcing bar and the L-shaped reinforcing bar are deformed reinforcing bars in which nodes are provided at predetermined intervals in the longitudinal direction, and the first engaging part and / or the second engaging part are applied to the deformed reinforcing bars of the arcuate cylindrical member. An arcuate cylindrical member having a configuration in which a concave and convex portion is provided on the contact surface side so as to mesh with a node of the deformed reinforcing bar and restrict the shift of the arcuate reinforcing bar in the longitudinal direction of the deformed reinforcing bar. It is possible to effectively prevent the engaging positions of the first and second engaging portions from being moved along the longitudinal direction of the reinforcing bars by engaging the irregular portions provided on the reinforcing bars with the deformed reinforcing bars. Can be maintained.

  In addition, it is configured to include a third engaging portion that is connected downwardly from the first engaging portion and is engaged with the horizontal bar portion of the L-type reinforcing bar in a hole penetrating manner to support the horizontal bar portion. Accordingly, the horizontal bar portion of the L-type reinforcing bar can be supported in a lifted manner via the third engaging portion, and the downward displacement of the L-type reinforcing bar can be surely prevented, and the horizontal bar portion can be displaced laterally. Shaking can be prevented, the predetermined orthogonal state between the straight bar reinforcing bar and the L-type reinforcing bar is made more reliable, and the reliability of the orthogonal holding function can be further improved.

  In addition, the third engaging portion may be configured to include one or a pair of strip-shaped gripping pieces that are wound around the horizontal bar portion of the L-shaped reinforcing bar, thereby complicating the configuration or increasing the cost. The third engaging portion can be specifically realized with a simple configuration without the need to do so. Further, the third engaging portion can be attached to the horizontal bar portion of the L-type reinforcing bar from the crossing direction, and the engaging operation of the third engaging portion can be easily performed. Further, for example, when it is necessary to arrange another reinforcing bar along the horizontal bar portion of the L-shaped reinforcing bar, the strip-shaped gripping piece is relatively difficult to get in the way.

  The third engaging portion is a thin metal plate integrally formed with the arcuate cylindrical member of the first engaging portion, and includes a through hole that penetrates the horizontal bar portion of the L-type reinforcing bar, and an inside and an outside of the through hole. The third engagement portion can be specifically realized with a simple configuration by using a metal thin plate having a notch portion having a width smaller than the diameter of the horizontal bar portion communicating with the horizontal bar portion. Further, by deforming the vicinity of the notch portion of the thin metal plate and opening the notch portion having a small width, it can be attached to the horizontal bar portion from the crossing direction, and the engaging operation of the third engaging portion can be easily performed.

  Embodiments of a reinforcing bar connector according to the present invention will be described below with reference to the accompanying drawings. The reinforcing bar connector according to the present embodiment is, for example, a reinforcing bar used for a reinforced concrete structure such as a base portion 100 such as a block fence F as shown in FIGS. 20 and 21, particularly a predetermined orthogonal as shown in FIG. 22. This is a reinforcing bar connecting tool effective for connecting the straight bar reinforcing bar 104 and the L-shaped reinforcing bar 106 which are crossed in a state. As shown also in FIG. 2, the reinforcing bar coupler is composed of a straight straight bar reinforcing bar 104 installed horizontally, a vertical bar portion 106 a bent in an L shape and rising vertically, and a lower end of the vertical bar portion 106 a. An L-shaped rebar 106 including a horizontal bar portion 106b arranged horizontally, and a vertical bar portion 106a and a horizontal bar of the L-type rebar while arranging the straight bar rebar 104 at the L-shaped corner position 106c of the L-type rebar 106 Each of the portions 106 b is a reinforcing bar coupler that is connected in a state of being orthogonal to the straight bar reinforcing bar 104. That is, the straight bar reinforcing bar 104 is disposed orthogonally to the vertical bar portion 106a and the horizontal bar portion 106b of the L-shaped reinforcing bar inside the L-shaped corner portion 106c of the L-shaped reinforcing bar 106 bent into a right-angled L-shape. In the orthogonal state (vertical crossing state) where the vertical bar portion 106a and the horizontal bar portion 106b of the L-type reinforcing bar are substantially three-dimensionally orthogonal, the straight bar reinforcing bar 104 and the L-type reinforcing bar 106 are connected to each other. It is a reinforcing bar connector with orthogonal holding means for connecting while maintaining the orthogonal state. In this embodiment, as shown in FIGS. 2 and 5, the straight bar reinforcing bar 104 and the L-type reinforcing bar 106 are, for example, iron bars having a circular cross section, and are nodes (ribs) protruding at predetermined intervals in the longitudinal direction. ) 110 is formed of a deformed reinforcing bar. In some drawings such as FIG. 20, FIG. 21, FIG. 22 and the like, each reinforcing bar is shown without a node.

  1 to 7 show a first embodiment of a reinforcing bar connector according to the present invention. As shown in FIGS. 1 and 2, in this embodiment, the reinforcing bar connector 10 includes a first engaging portion 12 that engages with the straight bar reinforcing rod 104 and a second engaging portion that engages with the L-shaped reinforcing bar 106. 14.

  As shown in FIGS. 1 and 2, the first engaging portion 12 is a straight bar reinforcing means for engaging the vicinity of the intersection position of the straight reinforcing bar 104 with the L-type reinforcing bar 106, for example. In this embodiment, the 1st latching | locking part 12 has a 1st holding means to hold | grip the straight bar reinforcement 104, for example, and to fix it in a fixed form. As shown in FIGS. 3, 4, and 5, the first engaging portion 12 is formed by bending a thin steel plate, for example, and includes a first arcuate cylindrical member 16 and a first circle. And a first holding part 18 provided integrally with the arcuate tube member 16.

  The first arcuate cylindrical member 16 is an engaging member applied along the longitudinal direction of the straight bar reinforcing bar 104, and has, for example, a substantially semicircular cross section having an inner diameter substantially equal to the outer diameter of the straight bar reinforcing bar. It is provided horizontally. As shown also in FIG. 6, the back side of the arcuate inner side of the first arcuate cylindrical member 16 has an opening 20, and the arcuate cylindrical member 16 inner space communicates with the outside.

  The 1st holding | maintenance part 18 is a site | part which hold | maintains the state which applied the 1st circular arc-shaped cylinder member 16 to the straight bar reinforcing bar 104, and can also be said to be a means for attaching the circular arc-shaped cylindrical member to the reinforcing bar 104. The first holding portion 18 is located at a position avoiding a connection position of a second engaging portion 14 described later so as not to obstruct the L-type reinforcing bar 106 orthogonal to the straight bar reinforcing rod 104, in the present embodiment, the first arcuate cylindrical tube. It is provided on the left and right ends of the member 16. The first holding portion 18 includes, for example, a clip piece portion 22 that is formed in a substantially C shape and engages with the straight bar reinforcing bar 104 in a fitting manner. The clip piece portion 22 is provided integrally with the first arcuate cylindrical member 16 by a structure in which the C-shaped intermediate portion is shared with a part of the arcuate cylindrical member 16. Grab and fix the straight bar reinforcing bar. Further, an ear piece 24 extended in a substantially C shape is formed at the end of the clip piece 22 on the C-shaped opening side so as to gradually widen the opening toward the outside. As shown in FIG. 7, the clip piece 22 can be deformed so as to enlarge or reduce the C-shaped opening 22a, for example. Therefore, for example, the straight bar reinforcing bar is moved from the C-shaped opening side to the C-shaped inner side only by operating the entire first arcuate cylindrical member 16 by pushing the entire first arc-shaped cylindrical member 16 through the ear piece 24 from the C-shaped opening side. 104 can be inserted and fitted. Thereby, attachment operation can be performed easily. If necessary, the ear piece 24 can be pinched with a finger and the clip piece portion 22 can be tightened to a straight bar reinforcing bar so as to be fitted more firmly. Since the first arc-shaped cylindrical member 16 and the clip piece portion 22 are made of a thin steel plate as a whole, even when the diameter of the straight bar rebar 104 is slightly different, it can be easily accommodated to the diameter. Can be transformed and attached.

  As shown in FIGS. 1 and 2, the second engaging portion 14 is an L-type reinforcing bar vertical portion engaging means which is connected to the first engaging portion 12 and is engaged with the vertical rod portion 106 a of the L-type reinforcing bar. Yes, in cooperation with the first engaging portion 12 (that is, in a state where the first engaging portion is engaged with the straight bar rebar), the straight bar rebar and the L-type rebar are connected, and in the connected state, L The orthogonal holding means 25 that holds the predetermined orthogonal state between the straight bar reinforcing bar and the L-type reinforcing bar is realized while preventing the vertical bar portion of the type reinforcing bar from falling down. The engaging position of the second engaging portion 14 to the vertical bar portion of the L-type reinforcing bar is fixed to the L-shaped corner portion 104c of the L-type reinforcing bar, that is, a portion separated to some extent above the position where the straight reinforcing bar 104 is disposed. The vertical bar portion can be favorably supported. In this embodiment, the 2nd engaging part 14 has the 2nd holding | grip means which hold | grips the vertical bar part 106a of an L-type reinforcing bar, for example, and engages it fixedly. As shown in FIGS. 3, 4, and 5, the second engaging portion 14 is formed by bending a thin steel plate having a thickness of about 0.5 mm, for example, in substantially the same manner as the first engaging portion. It is formed, and includes a second arcuate cylindrical member 26 and a second second holding portion 28 provided integrally with the second arcuate cylindrical member 26.

  The second arcuate cylindrical member 26 is an engaging member applied along the longitudinal direction of the vertical bar portion 106a of the L-type reinforcing bar, and has an inner diameter that is substantially the same as the outer diameter of the vertical bar portion 106a, for example. It has a semicircular cross section and is vertically long. As shown in FIG. 6, the inner surface of the arc of the second arcuate cylindrical member 26 has an opening 30 on the back side, and the inner space of the arcuate cylindrical member 26 communicates with the outside. The second arcuate cylindrical member 26 is provided with a connecting portion 31 integrally on its lower end side in a state where it is erected in the vertical direction, and the left and right sides of the first arcuate cylindrical member 16 are connected via the connecting portion 31. It is connected to the upper side of the middle position. That is, as shown in FIG. 3, the second arcuate cylinder member 26 and the first arcuate cylinder member 16 are configured in a substantially inverted T shape in front view, and the second arcuate cylinder member 26 is a first arcuate shape. The structure is firmly held in a state perpendicular to the cylindrical member 16. The direction of the opening 30 of the second arcuate cylindrical member 26 is set to the same direction as the opening 20 of the first arcuate cylindrical member 16. Further, as shown in FIG. 4, the second circular arc shape in a side view corresponding to the positional relationship between the straight bar 104 arranged in the predetermined orthogonal state as described above and the vertical bar portion 106 a of the L-type reinforcing bar. The position of the cylindrical member 26 is set at a position shifted from the first arcuate cylindrical member 16 in the opening direction on the opening 20 side.

  The 2nd holding | maintenance part 28 is a site | part which hold | maintains the state which applied the 2nd circular arc-shaped cylinder member 26 to the vertical bar part 106a of an L-type reinforcing bar, and can also be said to be an attachment means of this circular arc-shaped cylinder member. The second holding portion 28 is provided, for example, vertically separated at the upper end portion of the second arcuate cylindrical member 26 and the intermediate position in the longitudinal direction, and holds the two spaced apart positions of the vertical rod portion 106a. The second holding portion 28 has substantially the same configuration as the first holding portion 18 and includes a clip piece portion 32 that is formed in, for example, a substantially C shape and engages with a vertical bar portion 106a of an L-type reinforcing bar. . The clip piece portion 32 is provided integrally with the second arcuate cylindrical member 26 by a structure in which the C-shaped intermediate portion is shared with a part of the arcuate cylindrical member 26, and the clip piece portion 32 provides an L-shaped reinforcing bar. The vertical bar portion 106a is clamped and engaged. Further, an end piece 34 extending in a substantially C shape is formed at the end of the clip piece 32 on the C-shaped opening side so as to gradually widen the opening toward the outside. As shown in FIG. 7, the clip piece 32 can be deformed in a bullet shape so as to enlarge or reduce the C-shaped opening 34a, for example. Therefore, for example, the vertical bar is formed from the C-shaped opening side to the C-shaped inner side only by pushing the entire second arcuate cylindrical member 26 into the vertical bar portion 106a from the C-shaped opening side via the ear piece 24. The portion 106a can be inserted and fitted. Thereby, the attaching operation of the second engaging portion can be easily performed, and the attaching operation to the L-type reinforcing bar can be performed smoothly and reliably even in a state where the first engaging portion 12 is attached to the straight bar reinforcing bar. If necessary, the ear piece 34 may be picked with a finger and the clip piece portion 32 may be fastened to the vertical bar portion so as to be fitted more firmly. In addition, since the second arc-shaped cylindrical member 26 and the clip piece portion 32 are made of a thin steel plate as a whole, even when the diameter of the vertical bar portion 106b is slightly different, it can be easily accommodated to the diameter. Can be transformed and attached.

  In the present embodiment, the first engaging portion 12 and the second engaging portion 14 including the connecting portion 31 (that is, the first arcuate cylindrical member 16, the first holding portion 18, the second arcuate cylindrical member 18, 2 holding part 28 and connecting part 31), for example, a single thin steel plate is cut or punched into a predetermined shape, and then bent into the shape shown in the figure and formed integrally. Therefore, the first engaging portion 12 and the second engaging device can be integrated and strong, and a predetermined orthogonal state holding structure can be realized when the straight bar reinforcing bar and the L-type reinforcing bar are connected. The reinforcing bar connector 10 can be manufactured at low cost. Note that the reinforcing bar coupler may be molded by pouring molten metal into a mold, for example.

  As shown in FIGS. 5 and 6, on the inner surface side of the arc that contacts the reinforcing bars 104 and 106 of the first arcuate cylindrical member 16 and the second arcuate cylindrical member 26, a straight bar reinforcing bar and an L-shaped reinforcing bar node 110 are provided. And a concavo-convex portion 36 that engages with each other. The concavo-convex portion 36 is formed by repeatedly concavo-convex at a predetermined interval, and realizes a position shift prevention function that restricts the shift movement of the deformed reinforcing bar of the arcuate cylindrical member in the longitudinal direction. Thereby, the uneven | corrugated | grooved part 36 cooperates with the 1st, 2nd holding | maintenance parts 18 and 28, for example, when a L-type rebar moves below with the weight, a vertical position of a L-type rebar shifts, or L It is difficult for the type reinforcing bars to move along the longitudinal direction of the straight bar reinforcing bars and shift from the predetermined reinforcing bar position, and the reinforcing bar position in the predetermined orthogonal state can be favorably maintained. In the present embodiment, the concavo-convex portion 36 is, for example, a plurality of arc-shaped concave grooves 38 that receive the nodes 110 of the reinforcing bars 104, 106a in a fitting manner on the arc inner surfaces of the first and second arc-shaped cylindrical members 16, 26. Consists of. The concave groove 38 is formed by, for example, forming a part of the arcuate cylindrical members 16 and 26 made of a thin steel plate corresponding to the shape of the node 110 of the reinforcing bar, and the arcuate cylindrical members 16 and 26. A convex deformation portion 40 corresponding to the formation of the concave groove 38 is formed on the outer side of the groove. In the drawing, the concave grooves 38 are configured to receive several pieces at intervals corresponding to the intervals of the reinforcing bar nodes. However, the present invention is not limited to this, and for example, a large number of concave grooves 38 may be formed. . Further, for example, if a plurality of concave and convex portions are formed at relatively close positions, the position of the reinforcing bar node 110 can be finely adjusted. The concave and convex portions may have a structure in which one or a plurality of convex portions are provided so as to be engaged with the reinforcing bar nodes 110 inside the circular arcs of the arc-shaped cylindrical members 16 and 26 opposite to the concave grooves. Note that the uneven portion is not necessarily provided. The first and second engaging portions and the first and second holding portions may be engaged with each reinforcing bar to prevent the displacement.

  With the above-described structure, the reinforcing bar connector 10 has the L-shaped corner portion of the L-type reinforcing bar with respect to the straight bar reinforcing bar 104 after the first engaging part 12 is fixed to the horizontal reinforcing bar 104 installed horizontally. The reinforcing bars 104 and 106 are connected to each other by engaging with the second engaging part 14 in a predetermined orthogonal state in which the vertical bar part 106a and the horizontal bar part 106b are orthogonal to each other with the 104c approaching (see FIG. 2). In this connected state, the first and second engaging portions 14 can prevent the vertical bar portion 106a of the L-type reinforcing bar from falling down and can maintain a predetermined orthogonal state. It can be done. In addition, the connecting operation can be performed very easily as compared with the conventional bundling of iron wires. For example, only one operator can connect smoothly. Basically, the rebar connector 10 is connected while maintaining the orthogonal state of the straight bar rebar and the L-type rebar, but if necessary (for example, when the vertical bar portion of the L-type rebar is long, etc.) It is also possible to use a steel wire or the like in combination with the reinforcing bar connector 10, and bind the reinforcing bar connector 10 and the L-type reinforcing bar or the straight bar reinforcing bar with a steel wire to form a stronger connection structure. Even in this case, since the reinforcing bars are previously connected by the reinforcing bar connection 10, the auxiliary iron wire binding work can be performed relatively smoothly. In addition, the reinforcing bar connector 10 according to the present embodiment can be used, for example, to connect the cross-intersection portions of linear reinforcing bars.

  In addition, the structure of the 1st, 2nd engaging part 12 and 14 is not restricted to the thing of the said embodiment. For example, the first and second arcuate cylindrical members 16 and 26 may be relatively short in the axial direction, for example, and the length of the arc having a cross-sectional arc shape may be arbitrary. Moreover, it is good also as a structure which provided two or more several arc-shaped cylinder members side by side. The configuration is not limited to the arcuate cylindrical member, and may be any configuration as long as a predetermined orthogonal state of the reinforcing bars can be held, such as a U-shaped member or a structure in which a holding portion for gripping the reinforcing bars is formed on the frame structure. Further, for example, a part of the first arcuate cylindrical member 16 on the lower side may be cut out in a concave shape so that the horizontal bar portion 106b of the L-type reinforcing bar comes into contact with the straight bar reinforcing bar 104. Further, the holding portions 18 and 28 are not limited to the configuration of the clip piece portions 22 and 32. For example, any other holding structure, such as a structure in which a part of the iron plate forming the first and second arcuate cylindrical members 16 and 26 is elastically deformed or plastically deformed by bending or the like to engage with the reinforcing bar in a gripping manner. But you can. Alternatively, the first engaging portion 12 and the second engaging portion 14 may be separately formed and then connected and manufactured.

  Next, a second embodiment of the reinforcing bar connector according to the present invention will be described with reference to FIGS. The same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIGS. 8, 9, and 10, the reinforcing bar connector 10 </ b> A according to the second embodiment has substantially the same configuration as that of the first embodiment, and includes a first engaging portion 12 and a second engaging portion. The first and second holding portions 18 and 28 are different from those in the first embodiment. In this embodiment, the 1st, 2nd holding | maintenance parts 18 and 28 consist of the folding | returning piece parts 42 and 44 which carry out the bending | flexion bending deformation | transformation in the winding shape around the surrounding surface of the reinforcing bars 104 and 106, for example, and hold | grip the reinforcing bars. The folded piece portions 42 and 44 are, for example, gripping piece portions each formed of a protruding plate piece protruding in a substantially J shape from the first and second arcuate cylindrical members 16 and 26, and the first and second arcuate shapes. It is integrally formed with a thin steel plate together with the cylindrical member. As shown in FIG. 10, in a state where the first and second arcuate cylindrical members 16 and 26 are engaged with the reinforcing bars 104 and 106, the folded pieces 42 and 44 are formed in a substantially C shape along the peripheral surface of the reinforcing bars. By bending and deforming in a folded shape, the reinforcing bar is gripped and the attached state of the arcuate cylindrical member is maintained. For example, the folded piece portion 42 to be the first holding portion 18 is formed on the upper side of the left and right ends of the first arcuate cylindrical member 16. For example, the folded piece portions 44 that serve as the second holding portions 28 are formed on the upper side of the second arcuate cylindrical member 28 so as to be spaced apart from each other in an up-down direction, and project in a staggered manner. In this embodiment, the same operational effects as those of the first embodiment can be obtained, and the straight bar reinforcing bar 104 and the L-type reinforcing bar 106 can be easily connected while maintaining a predetermined orthogonal state.

  Next, a third embodiment of the reinforcing bar connector according to the present invention will be described with reference to FIGS. 11, 12, and 13. The same members as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIGS. 11, 12, and 13, the reinforcing bar connector 10 </ b> B according to the third embodiment has substantially the same configuration as that of the first embodiment, and includes the first engaging portion 12 and the second engagement portion 12. In this embodiment, a third engaging portion 46 that is engaged with the horizontal bar portion 106b of the L-type reinforcing bar is further provided. In the present embodiment, the second arcuate cylindrical member 26 is formed to be relatively shorter than that of the first embodiment, and the clip piece portion 32 constituting the second engaging portion 28 is only one at the upper end. Is provided.

  The third engaging portion 46 is connected to the first engaging portion 12 and is engaged with the peripheral surface of the horizontal bar portion in a state where the horizontal bar portion 106b of the L-type reinforcing bar is penetrated. L-type reinforcing bar horizontal bar engaging means that supports the horizontal bar portion 106b in a hole-penetrating manner, for example, downward movement due to the weight of the L-type reinforcing bar or horizontal bar By rotating around the vertical bar part of the part, it is possible to prevent the straight bar member from being displaced and the like so that the predetermined orthogonal state can be more reliably maintained. In the present embodiment, the third engaging portion 46 includes, for example, third gripping means that engages with the horizontal bar portion of the L-type reinforcing bar in a gripping manner. The third engaging portion 46 includes, for example, a pair of band-shaped gripping pieces 48 that are vertically connected to the left and right intermediate positions of the first arcuate cylindrical member 16. The band-shaped gripping piece 48 is made of, for example, an iron plate piece, and is provided in parallel to each other at substantially the same interval as the diameter of the reinforcing bar before the L-type reinforcing bar is attached to the horizontal bar portion 106b. The band-shaped gripping piece 48 is inserted into the facing gap from the lower side, and the L-shaped reinforcing bar 106b is inserted from the lower side, and then the lower side is curved in a substantially J shape so as to follow the peripheral surface of the horizontal bar 106b. Form and wrap around the horizontal bar portion. The strip-shaped gripping piece 48 abuts the side and bottom of the horizontal bar portion 106b and is engaged with the horizontal bar portion so as to penetrate the hole. The horizontal bar portion is lifted up and supported from the lower side. At the same time, the lateral displacement of the horizontal bar portion 106b can be well regulated. As a result, in this embodiment as well as the first embodiment, the straight bar reinforcing bar 104 and the L-type reinforcing bar 106 can be reliably connected while maintaining a predetermined orthogonal state well, and the connecting work between the reinforcing bars can be simplified. And it can be done in a short time. In particular, by providing the third engaging portion 46, it is possible to more reliably hold the straight bar reinforcing bar and the L-type reinforcing bar in a predetermined orthogonal state and improve the orthogonal holding function. In addition, the strip | belt-shaped holding | grip piece 48 is good also as a structure which attached the comparatively long thing to the 1st circular arc-shaped cylinder member, for example. In addition, the third engaging portion 46 is, for example, a clip structure for locking the horizontal bar portion or a structure in which a hole penetrating the horizontal bar portion is drilled in a flat plate suspended from the first arcuate cylindrical member 16. It may be configured.

  Next, a fourth embodiment of the reinforcing bar coupler of the present invention will be described with reference to FIGS. 14, 15, 16, and 17. FIG. The same members as those in the first, second, and third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIGS. 14, 15, and 16, the reinforcing bar connector 10 </ b> C according to the fourth embodiment has substantially the same configuration as that of the third embodiment, and includes the first engaging portion 12 and the second engagement portion 12. Although the engaging part 14 and the 3rd engaging part 46 are provided, the structure of the 1st engaging part 12 and the 3rd engaging part 46 differs in this embodiment.

  In the present embodiment, the first arcuate cylindrical member 16 and the third engaging portion 46 are integrally formed of, for example, a thin-walled iron plate 51. For example, the first arcuate cylindrical member 16 is formed in a substantially arc shape whose section arc length is shorter than that of the above-described embodiment, and is engaged with the substantially upper part of the straight bar 104 along the longitudinal direction. To do. The first holding portion 18 includes, for example, the folded piece portion 42, but may be constituted by the clip piece 22 as in the first embodiment. The third engaging portion 46 includes, for example, a hanging flat plate portion 50 that is suspended substantially directly from the front surface side of the first arcuate cylindrical member 16 and has a substantially trapezoidal shape when viewed from the front. The hanging flat plate portion 50 has a through hole 52 that penetrates the horizontal bar portion 106b of the L-type reinforcing bar and a notch portion 54 that communicates the inside and the outside of the through hole 52. The through hole 52 is set to be approximately the same as or slightly larger than the diameter of the L-shaped reinforcing bar 106, and the notch portion 54 is set to be smaller than the diameter of the horizontal bar portion 106 b and is inserted into the through hole 52. The horizontal bar portion 106b of the L-type reinforcing bar is securely held without detaching from the notch portion 54. As shown in FIG. 17, when the horizontal bar portion 106b is engaged with the hanging flat plate portion 50, for example, the left and right edge portions 50a and 50b of the hanging flat plate portion 50 are bent and deformed alternately in the front and rear direction. The opening width of the notch 54 is made larger than the diameter of the horizontal bar 106b. Then, after inserting the horizontal bar portion of the L-type reinforcing bar into the through hole position through the widened notch portion 54, the both side edge portions 50a, 50b of the hanging flat plate portion are returned to the original position, and the horizontal bar is inserted into the through hole 52. It is attached to the hanging flat plate portion with the portion penetrating the hole. As a result, in this embodiment as well as the third embodiment, the straight bar reinforcing bar 104 and the L-type reinforcing bar 106 can be reliably connected while maintaining a predetermined orthogonal state well, and the connecting work of the reinforcing bars can be simplified. In addition, it can be performed in a short time, and the third engaging portion 46 can more reliably maintain a predetermined orthogonal state between the straight bar reinforcing bar and the L-type reinforcing bar. The shape of the hanging flat plate portion may be any other shape such as a rectangular shape or a circular arc plate shape, for example.

  Next, a fifth embodiment of the reinforcing bar connector of the present invention will be described with reference to FIG. The same members as those in the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. The reinforcing bar connector 10D according to the fifth embodiment is a modification of the fourth embodiment having substantially the same configuration as that of the fourth embodiment. For example, the second through-hole is adjacent to the through hole 52 in the hanging flat plate portion 50. A hole 56 is provided. For example, when it is necessary to arrange another reinforcing bar 112 along the longitudinal direction of the horizontal bar portion 106b of the L-type reinforcing bar, such as when a base part such as a block cage is formed in a T shape, the other reinforcing bar 112 is The second through hole 56 can be inserted. Accordingly, the third engaging portion 46 does not interfere with the arrangement of the other reinforcing bars 112, and the arrangement of the other reinforcing bars 112 can be realized. At this time, when a relatively large load is applied to the hanging flat plate portion 50, for example, it may be bound with an iron wire or the like.

  Next, a sixth embodiment of the reinforcing bar coupler of the present invention will be described with reference to FIG. The same members as those in the first to fifth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIG. 19, the reinforcing bar connector 10E according to the sixth embodiment has substantially the same configuration as that of the second embodiment, and includes a first engaging portion 12 and a second engaging portion 14. However, the present embodiment is different in that the concave and convex portion 36 (the concave groove 38 and the convex deformed portion 40) is not provided. The first holding portion 18 includes a bent piece portion 58 that is bent and deformed and is engaged with the straight bar reinforcing rod 104, and is integrally connected to the lower arc sides of the left and right ends of the first arcuate cylindrical member 16. The second holding portion 28 includes a bent piece portion 60 that is bent and deformed to be engaged with the L-shaped reinforcing bar 106, and is integrally provided on the upper end side of the second arcuate member 26. The bent pieces 58 and 60 are bent and deformed in a state where the first and second arcuate cylindrical members 16 and 26 are engaged with the reinforcing bars 104 and 106, thereby holding the reinforcing bar and holding the attached state of the arcuate cylindrical member. To do. Also in this embodiment, there exists an effect similar to the said embodiment. Furthermore, since it is the structure which does not provide the uneven | corrugated | grooved part 38, compared with the thing of the said embodiment, a structure is simple, there are few manufacturing processes, and it can manufacture at low cost.

  The reinforcing bar coupler of the present invention described above is not limited to the configuration of the above-described embodiment alone, and may be modified arbitrarily without departing from the essence of the present invention described in the claims. Good.

  The reinforcing bar connector of the present invention can be suitably used to connect a straight bar reinforcing bar and an L-shaped reinforcing bar in an orthogonal state when, for example, a civil engineering or building is constructed with a reinforced concrete structure.

It is a schematic perspective view of 1st Embodiment of the reinforcing bar connector of this invention. It is explanatory drawing of the state which attached the reinforcing bar connector of FIG. 1 to the predetermined position of a reinforcing bar, and connected the reinforcing bar. It is a front view of the reinforcing bar connector of FIG. It is a side view of the reinforcing bar connector of FIG. It is AA sectional view taken on the line of FIG. 3, and is explanatory drawing which showed the reinforcing bar simultaneously. It is the BB sectional view taken on the line of FIG. It is operation | movement explanatory drawing of a holding | maintenance part. It is a schematic perspective explanatory drawing of 2nd Embodiment of a reinforcing bar connector. It is a side view of the reinforcing bar connector of FIG. It is operation | movement explanatory drawing of the reinforcing bar connector of FIG. It is an outline perspective explanatory view of a 3rd embodiment of a reinforcing bar connector, and is an explanatory view attached and connected to a predetermined position of a reinforcing bar. It is a front view of the reinforcing bar connector of FIG. It is a side view of the reinforcing bar connector of FIG. It is a schematic perspective explanatory drawing of 4th Embodiment of a reinforcing bar connector. It is a front view of the reinforcing bar connector of FIG. It is a side view of the reinforcing bar connector of FIG. It is action | operation explanatory drawing of the 3rd engaging part of the reinforcing bar connector of FIG. It is a schematic perspective explanatory drawing of 5th Embodiment of a reinforcing bar connector. It is a schematic perspective view of a sixth embodiment of the reinforcing bar connector. It is sectional explanatory drawing by the side of the base part of a block rod. It is a cross-sectional perspective explanatory view of the base side of the block rod. It is explanatory drawing of the bar arrangement in the predetermined orthogonal state of a straight bar reinforcing bar and an L-type reinforcing bar, and is the figure which expanded the principal part.

Explanation of symbols

10, 10A, 10B, 10C, 10D Reinforcing bar connector 12 First engaging portion 14 Second engaging portion 16 First arc-shaped cylindrical member 18 First holding portion 22 Clip piece portion 26 First arc-shaped cylindrical member 28 Second Holding part 32 Clip piece part 36 Uneven part 46 Third engaging part 104 Straight bar reinforcing bar 106 L-type reinforcing bar 110

Claims (8)

An L-shaped reinforcing bar including a straight straight bar that is installed horizontally; a vertical bar that is bent in an L shape and rises vertically; and a horizontal bar that is horizontally disposed from the lower end of the vertical bar; This is a reinforcing bar connector that connects the vertical bar and the horizontal bar of the L-type reinforcing bar in a state where both the vertical bar and the horizontal bar are orthogonal to the L-type reinforcing bar while arranging the vertical reinforcing bar at the L-shaped corner of the L-type reinforcing bar. Yes,
A first engaging portion that is attached to the straight bar,
A second engagement portion connected to the first engagement portion, engaged with the vertical bar portion of the L-type reinforcing bar and holding the L-type reinforcing bar and the straight bar reinforcing member in an orthogonal state while preventing the L-type reinforcing bar from falling down; A reinforcing bar connector characterized by comprising: The second engaging portion is an arcuate cylindrical member applied along the longitudinal direction of the vertical bar portion of the L-shaped reinforcing bar,
The reinforcing bar connector according to claim 1, further comprising: a holding portion that is provided integrally with the arc-shaped cylindrical member and holds a state of being applied to the L-type reinforcing bar. The first engaging portion is an arcuate cylindrical member applied along the longitudinal direction of the straight bar,
A holding portion that is provided integrally with the arc-shaped cylindrical member and holds a state of application to the straight bar reinforcing bar,
The reinforcing bar connector according to claim 2, wherein the lower end side of the arcuate cylindrical member of the second engaging part is connected to an intermediate position of the arcuate cylindrical member of the first engaging part, and is configured in an inverted T shape when viewed from the front. .   The reinforcing bar connector according to claim 2 or 3, wherein the holding part includes a clip piece part that is formed in a substantially C shape and that is engaged with each reinforcing bar by enlarging and reducing the C-shaped opening. Straight bars and L-type reinforcing bars are deformed reinforcing bars with nodes provided at predetermined intervals in the longitudinal direction.
The first engaging portion and / or the second engaging portion are engaged with the nodes of the deformed reinforcing bar on the contact surface side of the arc-shaped cylindrical member with the deformed reinforcing bar to engage with the deformed reinforcing bar of the arc-shaped cylindrical member. The reinforcing bar connector according to any one of claims 2 to 4, wherein an uneven portion for restricting displacement movement in the longitudinal direction is provided.   6. A third engaging portion that is connected downward from the first engaging portion and is engaged with the horizontal bar portion of the L-type reinforcing bar in a hole-penetrating manner to support the horizontal bar portion. A reinforcing bar coupler according to any one of the above.   The reinforcing bar connector according to claim 6, wherein the third engaging part includes one or a pair of band-shaped gripping pieces that are attached to the horizontal bar part of the L-shaped reinforcing bar in a wrapping manner. The third engaging portion is a thin metal plate integrally formed with the arcuate cylindrical member of the first engaging portion, and includes a through hole that penetrates the horizontal bar portion of the L-type reinforcing bar, and an inside and an outside of the through hole. The reinforcing bar connector according to claim 6, comprising a thin metal plate having a notch portion having a width smaller than a diameter of the communicating horizontal bar portion.

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