JP2008121187A - Connecting binding wire for reinforcement, and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form a binding wire for reinforcements having a structure capable of being continuously fed to a specified device etc. <P>SOLUTION: This binding wire for the reinforcements is used for connecting the crossing portions or joint portions of the reinforcements so that the plurality of reinforcements can be assembled. The binding wire for the reinforcements forms a loop portion in which the plurality of reinforcements to be connected together are to be arranged, and a twisting portion which connects the reinforcements together by being twisted together in the state of the arrangement of the plurality of reinforcements in the loop portion. The continuous binding wire for the reinforcements can be obtained by structurally connecting the plurality of binding wires for the reinforcements together. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention, for example, is connected to a staple like stapler so that it can be easily and continuously bound by attaching it to a predetermined device or the like that can bind a plurality of reinforcing bars using a binding wire. The present invention relates to a binding wire for a reinforcing steel bar and a manufacturing method thereof.

  Conventionally, this type of binding wire for reinforcing bars is used, for example, in the case of assembling at least three arcuate surface assemblies in which linear vertical bars made of reinforcing bars and arc-shaped horizontal bars are vertically and horizontally assembled. It is used to bind the binding line to the crossing portion of the vertical and horizontal muscles and connect the vertical and horizontal muscles (see Patent Document 1).

  As a binding wire for this type of reinforcing bar, for example, in a binding wire for reinforcing bar construction that is used by folding in two to tie the crossing portion and the joint portion of the reinforcing bar when assembling the reinforcing bar, There is a binding wire for reinforcing bar construction characterized by color coating (see Patent Document 2).

  In the known technique of Patent Document 2, not only the binding wire before use is stored alone, but also a plurality of the binding wires are bundled, and the binding wires are extracted one by one from the bundled binding wire bundle. It has been shown to be used.

JP 2006-104792 A JP 2000-336844 A

  However, in the publicly known technology of Patent Document 1, a plurality of binding wires before use are bundled and stored, but this is merely a bundling of a plurality of separate binding wires using a rope or the like. However, in actual use, since the binding wires are pulled out from the binding wire bundle one by one, only one binding wire is bundled for convenience of storage. It is only a single unity binding wire, and when pulling out one binding wire from the binding wire bundle one by one, it is not to use the continuous binding wires in order, but from the binding wire bundle. Just pull out one by one and use it.

  In addition, since only a plurality of binding wires are bundled using a rope or the like, even if the binding wires are organized and continuously bundled at the beginning, these binding wires are connected, that is, continuous. Since they are not connected (connected) in a state, when the binding wires are pulled out and used one by one, the holding by the rope or the like is loosened, and the organized and continuous state cannot be maintained.

  In short, in the known technique of Patent Document 1, only a plurality of bundling wires before use are bundled for convenience of storage, and the purpose is to use the bundling wires that are bundled continuously. Therefore, the continuity is not maintained.For example, when binding wires are joined together by using a predetermined device or the like, the binding wires are connected continuously. Therefore, the binding wires extracted from the binding wire bundle are attached to the predetermined device or the like one by one.

  Therefore, for example, there is a problem to be solved by forming a binding wire for reinforcing bars having a structure that can be continuously supplied to a predetermined device or the like.

  As specific means for solving the problems of the conventional example described above, as a first invention according to the present invention, there is a binding wire for reinforcing bars for connecting a crossing part or a joint part of the reinforcing bars to assemble a plurality of reinforcing bars. The rebar binding wire includes a loop portion in which a plurality of rebars to be coupled are disposed, and a twisted portion that couples the rebars by twisting together in a state in which the plurality of rebars are disposed in the loop portion. The present invention provides an articulated rebar binding wire characterized by having a structure in which a plurality of the rebar binding wires are connected.

  In the first aspect of the present invention, the connection of the binding wires for reinforcing bars includes adhesion as an additional requirement.

  Further, as a second invention, there is provided a method for manufacturing a reinforcing bar binding wire for connecting a crossing portion or a joint portion of a reinforcing bar to assemble a plurality of reinforcing bars, and comprising at least a plurality of longitudinal plate-like binding wires. Forming a connected rebar binding wire comprising a step of connecting and bonding on a flat surface, and a step of bending the bonded long plate-like binding wire to form a loop portion and a twisted portion. The manufacturing method of the binding wire for connecting rebars characterized by these is provided.

  In the second aspect of the present invention, the elongated plate-like binding wire includes an additional requirement that the plate member is formed by cutting the plate member into a longitudinal plate.

  The connecting wire for connecting rebar according to the first aspect of the present invention is a reinforcing wire binding wire for connecting a crossing portion or a joint portion of the reinforcing bar to assemble a plurality of reinforcing bars, and the reinforcing wire binding wire. Forming a loop portion in which a plurality of rebars to be coupled are disposed, and a twisted portion for coupling the rebars by twisting in a state where the plurality of rebars are disposed in the loop portion, Because it has a structure in which rebar tie wires are connected, adjacent rebar tie wires are in a nearly integrated state, and are kept organized and continuous in storage and transportation, etc. Even when attached to a predetermined device that can be connected, etc., the continuity in the binding wire for the connecting rebar is made by attaching in order from the binding wire for the reinforcing bar located at the end. Is It is, an excellent effect that it becomes sequentially be continuously easily mounted supplied to the predetermined device.

  In addition, the method for manufacturing a connecting wire for connecting rebar according to the second aspect of the invention is a method for manufacturing a binding wire for reinforcing bar for connecting a crossing part or a joint part of the reinforcing bar to assemble a plurality of reinforcing bars. A step of connecting and bonding at least a plurality of long plate-like binding wires on a plane, and a step of bending the bonded long plate-like binding wires to form a loop portion and a twisted portion, By forming the connecting wire for reinforcing bars, there is an excellent effect that the connecting wire for connecting reinforcing bars that can be continuously supplied to a predetermined device or the like that can connect the reinforcing bars can be easily manufactured.

Next, the present invention will be described in detail based on specific embodiments.
A connecting wire for connecting rebar according to an embodiment of the present invention will be described with reference to FIGS. First, as an example of a method of manufacturing a long-plate-shaped binding wire that is a raw material for manufacturing a connecting wire for connecting rebars, FIG. 1 shows a metal plate member 1 that is a raw material for a long-plate-shaped binding wire. Is a plan view schematically showing.

As this metal, for example, a metal such as a Miki iron plate or a Migaki steel plate can be used. More specifically, for example, a metal steel plate of JIS G 3141, a metal iron wire of JIS G 3532, or the like is preferably used. Particularly, the type of the metal steel plate is SPCE, and the tensile strength is about 250 N / mm ² or more. The elongation is about 30%, and it is preferable to use a steel sheet for deep drawing. Note that the long plate-like binding wire is not limited to the one produced by the method shown below, and for example, a wire obtained by rolling a round wire or the like into a long plate may be used. .

  As the plate member 1, for example, a metal plate material having a vertical (longitudinal) length of about 220 mm and a thickness (plate thickness) of about 3.2 mm as viewed in FIG. 1 can be used. . The plate member 1 is formed with cutout portions 2a and 2b for feeding out by gears or the like not shown in the upper and lower ends as viewed in FIG. The shape of the plate member 1 is not limited to the length and thickness, and a member having an appropriate size may be used.

  These cutout portions 2a and 2b are not formed symmetrically, and the cutout portion 2b is formed in a state shifted by a quarter cycle with respect to the cutout portion 2a. Note that the period for shifting the notch 2b with respect to the notch 2a may be appropriately set to, for example, the same period or 1/2 period, without being shifted by the quarter period.

  The plate member 1 is disposed in a forming apparatus using a mold (not shown), and a first predetermined portion 4 of the plate member 1 (a portion where a pair of long plate-like binding wires is formed later). Then, as shown in FIGS. 2 and 3, the male mold 3 is pressed against the mold. The vertical end 3a of the male mold 3 is formed with a predetermined angle, for example, an inclination of about 80 ° to 45 °.

  By pressing the plate member 1 with the male mold 3, a long plate-shaped binding wire is formed later, and the width of the male mold 3 is formed to be the width of the formed long plate-shaped binding wire. However, the length of the male mold 3 is determined by cutting the unnecessary portion such as an inclined portion pressed by the end portion 3a of the male mold 3 later. It is formed longer.

  The pressing by the male mold 3 against the first predetermined portion 4 of the plate member 1 is a length shallower than the plate thickness of the plate member 1, for example, 2 mm when the plate thickness of the plate member 1 is 3.2 mm. The plate is pressed only to the extent that it does not completely push the plate thickness.

  In this way, the vertical end portion 3a of the male mold 3 is formed in an inclined shape, and the length is shallower than the plate thickness of the plate member 1 to be pressed by the male mold 3 so as not to be completely pushed out. Therefore, in the first predetermined portion 4 of the plate member 1 pressed by the male mold 3, the pressed portion 4a in the width direction (left and right direction in the drawing) is cut, but the length direction In the pressed part 4b (up and down direction in the drawing), the part corresponding to the end part 3a is pushed out in an inclined manner and remains without being cut. That is, in the first predetermined portion 4, the pressed portion 4 a in the width direction is cut, and the pressed portion 4 b in the length direction is kept connected.

  For example, the length in the vertical direction (longitudinal direction) of the female mold (not shown) is formed to be longer than the length of the male mold 3 in the vertical direction (longitudinal direction), and the male mold 3 is formed into the female mold. When a gap is formed between the ends of the male mold 3 and the inner side of the female mold when fitted, the vertical end 3a of the male mold 3 is formed at 90 °. You may do it. That is, when the first predetermined portion 4 is pressed by the male mold 3, any shape may be used as long as the pressed portion 4b in the length direction can be maintained.

  The male mold 3 moves up and down in conjunction with the period of the notch 2a formed in the plate member 1. That is, by forming the notches 2a periodically, the first predetermined portions 4 of the plate member 1 pressed by the male mold 3 are provided at equal intervals as shown in FIG. is there. Note that one or more male dies 3 may be provided, but in consideration of production efficiency and the like, for example, two or more plural dies 3 may be provided.

  In this way, the first predetermined portion 4 which is pushed out from the flat plate member 1 and formed into a longitudinal plate shape with the pressed portion 4b connected thereto is formed on the plate member 1 by a planarizing device or the like (not shown). From the opposite side (bottom surface side) pushed out from the side, it is pressed again to the planar position and pushed back, and the whole plate member 1 is returned to a substantially planar shape.

  In other words, the plate member 1 that has been flattened by the flattening device or the like has the male mold 3 except that the pressed portion 4a in the width direction at the first predetermined portion 4 is cut. Thus, the state returns to a state substantially the same as before the pressing process is performed, and the whole plate member 1 is returned to a substantially flat state.

  Further, when this planarization process is performed, the pressed portion 4b that is in a stretched state is pushed back to the planar position, so the size of the stretched portion in the pressed portion 4b does not return to the original size, The stretched portion of the pressed portion 4b may push out the gap between the pressed portion 4b of the plate member 1 and the cutout portion 2a and the cutout portion 2b. Therefore, in order to smoothly push out the gap between the pressed portion 4b and the notched portion 2a and the notched portion 2b in the extension of the pressed portion 4b, the pressed portion 4b, the notched portion 2a, and the notched portion are preliminarily performed. It is preferable to form the gap with the portion 2b narrowly, for example, to have a length approximately equal to the plate thickness.

  Next, with respect to the plate member 1 returned to the substantially planar shape, the male mold 3 is moved up and down in conjunction with the period of the notch 2b formed in the plate member 1, as shown in FIG. As described above, a pressing process is performed on the second predetermined portion 5 of the plate member 1. As for the second predetermined portion 5 as well, the pressed portion 5a in the width direction is cut as in the first predetermined portion 4, but the pressed portion 5b in the length direction is connected. Formed with. The second predetermined portion 5 is also planarized in the same manner as the first predetermined portion 4, and the whole plate member 1 is returned to a state of being substantially flat.

  Thus, by cutting the vicinity where the first predetermined portion 4 and the original member of the plate member 1 are connected in the state where the first predetermined portion 4 is formed on the plate member 1, The first predetermined portion 4 can be formed as a pair of long plate-like binding wires 6, and the plate member 1 has a first predetermined portion 4 and a second predetermined portion 5. In the formed state, by cutting the vicinity where the first predetermined portion 4 and the second predetermined portion 5 are connected to the original member of the plate member 1, the first predetermined portion 4 and the first predetermined portion 5 are cut. Two predetermined portions 5 can be formed as long plate-like binding wires 6, and the distance between the first predetermined portion 4 and the second predetermined portion 5 is set to be the first predetermined portion 5. By making the same width as the predetermined portion 4, the portion between the first predetermined portion 4 and the second predetermined portion 5 can be reduced. So can be used as a long plate-shaped binding wire 6 is to become the binding wire 6 in the longitudinal plate can 4 pairs formed.

  In the present invention, a single longitudinal plate-like binding wire 6 cut from the plate member 1 in this manner may be used. However, in order to make the subsequent processing steps easier, the length of the single long plate is used here. A description will be given using a long-plate-like binding wire 6 in a state where the entire plate member 1 is flattened before the hand-plate-like binding wire 6 is cut from the plate member 1. That is, in the process of processing the long plate-like binding wire 6, first, it is necessary to continuously arrange a plurality of long plate-like binding wires 6 on a plane. If it is a state before cutting from the plate member 1, this operation can be omitted.

  In a state where a plurality of long plate-like binding wires 6 are arranged in continuous contact with each other on a flat surface, an adhesive is applied between these long plate-like binding wires 6 and bonded to each other. The binding wire 6 is connected on a plane, that is, connected in a continuous state. As this adhesive, it is possible to maintain an adhesive state during transportation or the like, and when a force is applied to the long-plate-like binding wire 6 located at the end, the long-plate-like binding wire to which the force is applied For example, an adhesive such as that used for staples of staples can be used, and any method that has the same degree of connection can be used. It does not mean that you have to use the agent.

  Next, the connected long plate-like binding wire 6 is formed into a shape in which the binding work can be easily performed using a mold having a predetermined shape, for example. As the mold of this predetermined shape, for example, a loop portion inner shape forming die 7a for forming an inner shape as shown in FIGS. 6 and 7, and an outer side along the loop portion inner shape forming die 7a. A loop portion forming die 7 including a loop portion outer shape forming die 7b for forming a shape can be used.

  When the long plate-like binding wire 6 is processed using the loop portion forming die 7, the long plate-like binding wire 6 is placed at a predetermined position of the loop portion forming die 7, as shown in FIG. In the set state, the loop portion inner shape forming die 7a is lowered.

  When the long plate-like binding wire 6 comes into contact with the loop portion inner shape forming die 7a, the long plate-like binding wire 6 is pushed and bent by the downward pressure of the loop portion inner shape forming die 7a.

  Further, when the loop portion inner shape forming die 7a descends and reaches a predetermined position accommodated in the loop portion outer shape forming die 7b, the loop portion outer shape forming die 7b becomes a long plate-like binding wire 6. As shown in FIG. 7, a loop portion forming die 7 in which the elongated plate-like binding wire 6 is composed of a loop portion inner shape forming die 7a and a loop portion outer shape forming die 7b, as shown in FIG. The loop portion 6a and the twisted portion 6b near both ends of the loop portion 6a are formed.

  In this way, the first predetermined portion 4 and the second predetermined portion 5 (both long) are formed in a state in which the loop-like binding wire 6 is bent to form the loop portion 6a and the twisted portion 6b. By cutting the vicinity where the hand plate-like binding wire 6) is connected to the original member of the plate member 1, unnecessary portions are eliminated, and as shown in FIG. A wire 6c, that is, a connecting wire 6d for connecting reinforcing bars (a connecting wire for connecting reinforcing bars connected and connected) can be manufactured. In addition, what is necessary is just to set the magnitude | size and shape of the loop part 6a, and the length of the twist part 6b suitably according to the thickness etc. of the reinforcing bar to couple | bond together.

  In this connection type rebar binding wire 6d, it is in a state of being connected and connected by means of adhesion or the like, and the adjacent rebar binding wires 6c are in a substantially integrated state. The maintained state is maintained, and the organized and continuous state is maintained. Therefore, when attaching to a predetermined device or the like (not shown) that can couple a plurality of reinforcing bars using the reinforcing bar binding wire 6c, the reinforcing bar binding wire 6c is attached in order from the end. By doing so, the continuity in the connecting rebar binding wire 6d is maintained, and it can be easily and sequentially attached to the predetermined device or the like.

  Next, an outline of assembling a plurality of reinforcing bars using the reinforcing bar binding wire 6c of the articulated reinforcing bar binding wire 6d formed as described above will be described with reference to FIG. A reinforcing wire binding wire 6c is provided at a crossing portion of a plurality of reinforcing bars, for example, two reinforcing bars 8a and 8b, and the crossing portions of the reinforcing bars 8a and 8b are arranged inside the loop portion 6a.

  In a state where the loop portion 6a is disposed on the reinforcing bars 8a and 8b, the loop portion 6a is brought into close contact with the reinforcing bars 8a and 8b by twisting and tightening the twisted portion 6b, and the reinforcing bar binding wire 6c and the reinforcing bar 8a. It becomes possible to couple the reinforcing bars 8b. Further, the reinforcing wire binding wire 6c can be provided not only at the crossing portion of the reinforcing bars 8a and 8b but also at, for example, a joint portion to couple and connect the reinforcing bar 8a and the reinforcing bar 8b.

It is the top view which showed schematically the metal plate member used as the raw material of a longitudinal-plate-like binding wire, in manufacturing the connection wire for connection type reinforcing bars concerning the present invention. FIG. 2 is a cross-sectional view schematically showing a state in which a male plate of a mold is pressed against the plate member of FIG. 1 to form a substantially plate-like binding wire. It is the expanded sectional view which expanded and showed the principal part of FIG. 2 schematically. FIG. 2 is a plan view schematically illustrating a state in which a substantially shape of a long-plate-like binding wire corresponding to a first predetermined portion is formed on the plate member of FIG. 1. FIG. 5 is a plan view schematically showing a state in which a substantially shape of a long-plate-like binding wire corresponding to a second predetermined portion is further formed on the plate member of FIG. 4. FIG. 3 is a front view schematically showing a state before a looped portion and a twisted portion are formed by bending a long-plate-like binding wire in manufacturing a connecting rebar binding wire according to the present invention. FIG. 5 is a front view schematically showing a state in which a long-plate binding wire is bent to form a loop portion and a twisted portion in manufacturing the connecting wire for connecting rebar according to the present invention. It is the perspective view which showed schematically the connecting wire for connection type reinforcing bars concerning the present invention. It is the front view which showed roughly the state which couple | bonds the reinforcing bar which consists of a plurality using the reinforcing wire binding wire of the connection type reinforcing steel binding wire according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Metal plate member 2a, 2b Notch part 3 formed in plate member Male die 3a Vertical end part 4 Male plate 1st predetermined part 4a, 5a The width direction cut | disconnected Pressed portions 4b, 5b of the remaining pressed portion 5 in the length direction Second predetermined portion 6 of the plate member Long plate-like binding wire 6a Loop portion 6b of the reinforcing wire binding wire Twisted portion of the reinforcing wire binding wire 6c Reinforcing bar binding wire 6d Articulated rebar binding wire 7 Loop portion forming die 7a Loop portion inner shape forming die 7b Loop portion outer shape forming die 8a, 8b

Claims (4)

Reinforcing bar binding wire for connecting a crossing part or a joint part of the reinforcing bar to assemble a plurality of reinforcing bars,
Formed on the binding wire for reinforcing bars are a loop portion where a plurality of reinforcing bars to be joined are arranged, and a twisted portion for joining the reinforcing bars by twisting together in a state where a plurality of reinforcing bars are arranged on the loop portion. And
An articulated rebar binding wire characterized by having a structure in which a plurality of rebar binding wires are connected. The connection of the rebar binding wire is as follows:
Bonding wire for articulated rebar according to claim 1, characterized by bonding. A method of manufacturing a rebar binding wire for connecting a crossing part or a joint part of rebars to assemble a plurality of rebars,
A step of connecting and bonding at least a plurality of elongated plate-like binding wires on a plane; and
A step of bending the bonded long-plate-like binding wire to form a loop portion and a twisted portion,
A method for manufacturing a connecting wire for a reinforcing bar, characterized in that the connecting wire for a reinforcing bar is formed. The elongated plate-like binding wire is
The method for manufacturing a connecting wire for a connecting rebar according to claim 3, wherein the plate member is formed by cutting into a long plate shape.

Images