JP2022042634A - Reinforcing bar fixture - Google Patents

Abstract

To provide a reinforcing bar fixture capable of preventing a problem such as loosening due to rotation of a main bar when the main bar is placed orthogonally to the right-angled corner of the shear reinforcement to fix the intersection.SOLUTION: A reinforcing bar fixture 100 fixes an intersection where a main bar VR with a pair of reinforcing rib VRRs protruding along the longitudinal direction of the reinforcing bar is placed orthogonally to the corner formed by a bent shear reinforcement HR. A shear reinforcement bar holding area 111 of a reinforcing bar fixture body 110 is formed in a U-shape via an arc-shaped shear reinforcement contact area where shear reinforcement HR contacts. Main bar holding areas 112 and 113 are formed in an L-shape by expanding at an almost right angle via an arc-shaped main bar contact area where each main bar VR contacts. In a first main bar holding area 112 and a second main bar holding area 113, rib engaging recesses 112r and 113r that engage with the reinforcing rib VRR of the main bar VR are provided in the main bar contact area.SELECTED DRAWING: Figure 1

Description

The present invention relates to a reinforcing bar fixator for arranging a main bar orthogonally to a corner of a shear reinforcing bar and fixing an intersecting portion between the main bar and the shear reinforcing bar.

Conventionally, in concrete work for creating structures such as columns or beams, it is necessary to arrange the main bars orthogonally to the corners of the shear reinforcing bars in the concrete placing space to fix the intersections, and it is bent with a straight rod. A binding tool for binding a rod-shaped body is disclosed.

Japanese Unexamined Patent Publication No. 11-336258

The binding tool described in Patent Document 1 is inserted with a hook portion entrance for inserting one side of the rod-shaped body bent at a right angle to the end portion of the main body portion that is rounded along the outer peripheral surface of the straight rod-shaped body. The hook part for holding the rod-shaped body, the entrance part for inserting the other side of the rod-shaped body bent at a substantially right angle, and the holding part for holding the inserted rod-shaped body are provided at the other end of the main body part. Although it is provided, since the fixing of the straight rod-shaped body is only supported by the elastic piece, the binding strength between the rod-shaped bodies is not sufficient when it is used for the structural reinforcing bar, and the straight rod-shaped body is provided. When the body is equipped with reinforcing ribs such as deformed reinforcing bars, the binding state becomes loose when the straight rod-shaped body rotates and rotates for some reason, and there is a problem that one of the rod-shaped bodies shifts from the binding position. there were.

Therefore, the present invention solves the problems of the prior art as described above. To provide a reinforcing bar fixture that can firmly fix the main bar in close contact with the innermost corner of the corner formed by bending the shear reinforcing bar and prevent problems such as loosening due to the rotation of the main bar. Is.

The invention according to claim 1 is a reinforcing bar fixing tool for fixing a crossing portion formed by arranging a main bar having a pair of reinforcing ribs protruding along the longitudinal direction of the reinforcing bar at right angles to a corner formed by bending a shear reinforcing bar. A U-shaped shear reinforcing bar holding region that holds the shear reinforcing bar, a first main muscle holding region that connects to one end of the shear reinforcing bar holding region and holds the main muscle, and the first main muscle holding region. In the U-shaped first fastening region connected to the one main muscle holding region and the second main muscle holding region and the second main muscle holding region connected to the other end of the shear reinforcing bar holding region to hold the main muscle. A reinforcing bar fixture body made of steel bar having a continuous U-shaped second fastening region, and a U-shaped locking region that is locked to the first fastening region from the outside and one end of the locking region. A fastening bolt made of steel bar having a linear screw region through which the second fastening region is inserted, and a fastening nut with a washer screwed onto the fastening bolt from the outside of the second fastening region. The main bar holding area and the second main bar holding area are expanded at substantially right angles via the arc-shaped main bar contacting portion that abuts on the main bar to form an L-shape, respectively, and the reinforcing bar fixing body body is formed. The above-mentioned problems are solved by providing the rib engaging recess that engages with the reinforcing rib of the main bar at the contact portion of the main bar.

The invention according to claim 2 is arranged so as to avoid the innermost portions of the first main muscle holding region or the second main muscle holding region, in addition to the configuration of the invention according to claim 1. , It solves the above-mentioned problems.

In the invention according to claim 3, in addition to the configuration of the invention according to claim 1 or 2, the first main bar holding region or the second main bar holding region includes the rib engaging recess. The above-mentioned problems are further solved by having a large curvature portion having a large curvature portion and a small curvature portion not provided with the rib engaging recess.

In the invention according to claim 4, in addition to the configuration of the invention according to any one of claims 1 to 3, the rib engaging recess is formed in the first main bar holding region or the second main bar holding region. The above-mentioned problems are further solved by being formed by a steep slope along the longitudinal direction of the holding region and a gentle slope continuous with the steep slope.

The invention according to claim 5 is formed in a rib engaging recess that engages with a reinforcing rib of the vertical bar main bar, in addition to the configuration of the invention according to any one of claims 1 to 4. A steep slope along the longitudinal direction of the first vertical muscle main muscle holding region and the second vertical muscle main muscle holding region and a gentle slope continuous with the steep slope, respectively, are the first vertical muscle main muscle holding region and the second vertical muscle. The above-mentioned problems are further solved by providing the muscle main muscle holding region at the same position in the same direction or in the opposite direction.

According to the reinforcing bar fixing tool of the present invention, the main bar having a pair of reinforcing ribs protruding along the longitudinal direction of the reinforcing bar is arranged at right angles to the corners formed by the bending of the shear reinforcing bars to fix the intersecting portion. Not only can the main bar and the shear reinforcing bar be fixed at these intersections, but also the following configuration peculiar to the present invention can exert the effect peculiar to the present invention.

According to the reinforcing bar fixing tool of the invention according to claim 1 of the present invention, the main bar is held by being connected to one end of the U-shaped shear reinforcing bar holding region and the shear reinforcing bar holding region that hold the shear reinforcing bar. The U-shaped first fastening area connected to the first main bar holding area and the first main bar holding area, and the second main bar holding area and the second main bar holding area connected to the other end of the shear reinforcing bar holding area to hold the main bar. A reinforcing bar fixture body made of steel bar having a U-shaped second fastening region connected to the two main bar holding regions, and a U-shaped locking region and a locking region that are locked to the first fastening region from the outside. It consists of a fastening bolt made of steel bar having a linear screw region that connects to one end and inserts a second fastening region, and a fastening nut with a seat that is screwed into the fastening bolt from the outside of the second fastening region. The main bar holding area and the second main bar holding area are formed in an L shape by expanding at substantially right angles via the arc-shaped main bar contact portion that abuts on the main bar, whereby the first main bar holding area is formed. A force is generated to strongly press the main bar against the shear reinforcing bar from the holding area and the second main bar holding area toward the shear reinforcing bar holding area, and from the first main bar holding area and the second main bar holding area to the fastening area. A force is generated that strongly presses the main bar against the shearing auxiliary muscle, and these resultant forces are directed toward the innermost corner of the corner formed by the bending of the shear reinforcing bar, so that the main bar is formed by bending the shear reinforcing bar. It can be firmly fixed by being in close contact with the innermost corner of the corner.

Further, since the reinforcing bar fixing tool main body is provided with a rib engaging recess that engages with the reinforcing rib of the main bar at the contact portion of the main bar, the reinforcing rib of the main bar is engaged with the rib engaging recess of the reinforcing bar fixing tool main body. Therefore, it is possible to prevent the rotation of the main bar when the intersection of the main bar and the shear reinforcing bar is fixed.

According to the reinforcing bar fixing tool of the invention according to claim 2, in addition to the effect of the reinforcing bar fixing tool of the invention according to claim 1, the rib engaging recess is formed in the first main bar holding region or the second main bar. By avoiding the innermost part of each of the holding regions, when one reinforcing rib of the main bar engages with the rib engaging recess, the other reinforcing rib of the engaged reinforcing bar intersects. Since the rebar is fixed without abutting against the bent reinforcing bar, even if the main rebar rotates and rotates due to an external force after the crossed portion is fixed, it is possible to realize a firm fixing in which the crossed portion does not loosen.

According to the reinforcing bar fixing device of the invention according to the third aspect, in addition to the effect of the reinforcing bar fixing device of the invention according to the first or second aspect, the first main bar holding area or the second main bar holding area is held. The region has a large curvature portion having the rib engaging recess and a small curvature portion not having the rib engaging recess, so that the first main bar holding region or the second main bar holding region is formed. However, since it has a large curvature portion having a rib engaging recess and a small curvature portion not having a rib engaging recess, the reinforcing rib is positioned by rotating the reinforcing bar by rotation. Since the resistance to rotation increases and stops when the rebar holding region reaches the large curvature part from the small curvature part, the reinforcing rib for reinforcing the reinforcing bar is more securely engaged with the rib engagement recess with a simpler operation. The intersection can be fixed.

According to the reinforcing bar fixing device of the invention according to claim 4, in addition to the effect of the reinforcing bar fixing tool of the invention according to any one of claims 1 to 3, the rib engaging recess is the first. The rib engaging recess is formed by the steep slope along the longitudinal direction of the one main bar holding area or the second main bar holding area and the gentle slope continuous with the steep slope, so that the rib engaging recess is the first main bar holding area. Alternatively, by forming a steep slope along the longitudinal direction of the second main bar holding region and a gentle slope continuous with the steep slope, the main bar is rotated in one direction and the reinforcing rib is directed from the gentle slope side to the steep slope side. When engaged with the rib engaging recess in this way, the steep slope acts as a stopper and the reinforcing rib of the main bar comes into contact with the steep slope and sits down. It can be securely fixed.

According to the reinforcing bar fixing tool of the invention according to claim 5, in addition to the effect of the reinforcing bar fixing tool of the invention according to any one of claims 1 to 4, it engages with the reinforcing rib of the main bar. A steep slope along the longitudinal direction of the first main bar holding region and the second main bar holding region formed in the rib engaging recess and a gentle slope continuous with the steep slope are the first main bar holding region. Since it is provided at the same position as the second main bar holding area, the reinforcing rib of the main bar engages with the rib engaging recesses of both the first main bar holding area and the second main bar holding area. When the intersecting portion is fixed, the rotation of the main bar can be reliably prevented.

Further, a steep slope along the longitudinal direction of the first main bar holding region and the second main bar holding region formed in the rib engaging recess that engages with the reinforcing rib of the main bar, and a gentle slope continuous with the steep slope, respectively. Since the slope is provided in the same position in the opposite direction in the first main bar holding area and the second main bar holding area, when the main bar is rotated and positioned, it rotates in either direction. Even if it is made to do so, the reinforcing ribs of the main bar engage with both the rib engaging recess in the first main bar holding area and the rib engaging recess in the second main bar holding area with the same force, so the main bar can be operated more easily. Reinforcing ribs can be positioned to more reliably secure the intersection.

The schematic diagram which shows the mode that the main bar and the shear reinforcement bar are fixed by using the reinforcing bar fixing tool of this invention. The schematic diagram which shows the reinforcing bar fixture which concerns on 1st Embodiment of this invention. The schematic diagram which shows the reinforcing bar fixture which concerns on 1st Embodiment of this invention. The schematic diagram which shows the reinforcing bar fixture which concerns on 1st Embodiment of this invention. The schematic diagram which shows the fastening bolt and the fastening nut with a washer of the reinforcing bar fixing tool which concerns on 1st Embodiment of this invention. The schematic diagram which shows the reinforcing bar fixture which concerns on 2nd Embodiment of this invention. The explanatory view which shows the structure common to the 1st main bar holding area and the 2nd main bar holding area of the reinforcing bar fixing tool of this invention.

The reinforcing bar fixative of the present invention has a U-shaped shear reinforcing bar holding region that holds the shear reinforcing bar, and a first main bar holding region and a first main bar holding region that are connected to one end of the shear reinforcing bar holding region and hold the main bar. U-shaped first fastening area connected to one main bar holding area and U-shaped connected to the second main bar holding area and second main bar holding area connecting to the other end of the shear reinforcing bar holding area and holding the main bar. A reinforcing bar fixture body made of steel bar having a second fastening region in the shape of a U-shaped locking region to be locked to the first fastening region from the outside, and a second fastening region connected to one end of the locking region. It consists of a fastening bolt made of steel bar with a linear screw region to be inserted and a fastening nut with a seat that is screwed into the fastening bolt from the outside of the second fastening region. The holding area is formed in an L-shape by expanding at a substantially right angle via the arc-shaped main bar contact portion that abuts on the main bar, and the reinforcing bar fixture main body has a rib for reinforcing the main bar at the main bar contact site. The rib engagement recess is provided to engage, and the reinforcing bar fixture body is provided with a rib engagement recess that engages with the reinforcing rib of the main bar at the contact portion of the main bar, so that the shear reinforcing bar bends the main bar. As long as it can be firmly fixed in close contact with the innermost corner of the corner to be formed and can prevent the rotation of the main bar when the intersection of the main bar and the shear reinforcing bar is fixed. The specific embodiment may be any.

For example, instead of locking the fastening bolt to the first fastening region and screwing the fastening nut with a washer from the outside of the second fastening region, the fastening bolt is locked to the second fastening region and the first fastening region is used. A fastening nut with a washer may be screwed from the outside of the.

Further, as the steel bar constituting the reinforcing bar fixture of the present invention, in addition to round steel, steel bars having a cross-sectional shape different from that of a circle, such as ordinary reinforcing bars and deformed reinforcing bars, or steel bars having a non-constant cross-sectional shape can be used.

In the present invention, the rib engaging recess that engages with the reinforcing rib of the main bar provided at the main bar contact portion of the first main bar holding region, and the main bar provided at the main bar contact portion of the second main bar holding area. At least one rib engaging recess that engages with the reinforcing rib may be provided in each of the first main bar holding area and the second main bar holding area, but if a plurality of rib engaging recesses are provided, the main bar rotates on its axis. It is more preferable because the reinforcing ribs are quickly engaged with any of the rib engaging recesses with a small amount of rotation during positioning to be rotated.

As the main reinforcing bar to be fixed by the reinforcing bar fixing tool of the present invention, a linear reinforcing bar constituting a column, beam, wall or other structure made of reinforced concrete can be selected. Further, as the shear reinforcing bar fixed by the reinforcing bar fixing tool of the present invention, a band bar (hoop), a stirrups (star wrap), and a core muscle (secondary band bar, sub-barrel muscle) can be selected. Spiral bars, which are high-strength shear reinforcement bars, and weld-closed bars can also be selected.

The reinforcing bar fixing tool of the present invention is not limited to the intersection of the main bar and the band bar arranged at the four corners of the column, and the intersection of the main bar (upper end bar or lower end bar) and the stirrups arranged at the four corners of the beam. It can be widely used for fixing the reinforcing bars to each other at the intersection formed by arranging the linear reinforcing bars orthogonally to the corners formed by bending the other reinforcing bars.

Hereinafter, the first embodiment of the reinforcing bar fixing tool according to the present invention will be described with reference to FIGS. 1 to 5 and 7.

Here, FIG. 1 is a schematic view showing how the main bar and the shear reinforcing bar are fixed by using the reinforcing bar fixing tool of the present invention, and FIG. 2 is a schematic view showing a state in which the main bar and the shear reinforcing bar are fixed, and FIG. 2 is a reinforcing bar fixing according to the first embodiment of the present invention. FIG. 3 is a schematic view showing a tool, FIG. 3 is a schematic view showing a reinforcing bar fixing tool according to the first embodiment of the present invention, and FIG. 4 is a schematic view showing a reinforcing bar fixing tool according to the first embodiment of the present invention. FIG. 5 is a schematic plan view showing a fastening bolt and a fastening nut with a seat of the reinforcing bar fixing tool according to the first embodiment of the present invention, and FIG. 7 is a first diagram of the reinforcing bar fixing tool of the present invention. It is explanatory drawing which shows the structure common to the main muscle holding area and the second main muscle holding area.

As shown in FIG. 1, the reinforcing bar fixture 100 according to the first embodiment is orthogonal to a corner formed by bending a main bar VR having a pair of reinforcing rib VRRs protruding along the longitudinal direction of the reinforcing bar and bending the shear reinforcing bar HR. The arranged intersecting portions are fixed, and as shown in FIGS. 1 to 5, a shear reinforcing bar holding region 111 that holds the shear reinforcing bar HR and one end of the shear reinforcing bar holding region 111 are fixed. At the other end of the first main bar holding area 112 that is connected to the main bar VR, the U-shaped first fastening area 114 that is connected to the first main bar holding area 112, and the shear reinforcing bar holding area 111. It has a reinforcing bar fixture body 110 made of steel bar having a second main bar holding area 113 that continuously holds the main bar VR and a U-shaped second fastening area 115 that is connected to the second main bar holding area 113. are doing.

The shear reinforcing bar holding region 111 of the reinforcing bar fixture main body 110 is formed in a U shape via an arc-shaped shear reinforcing bar contact portion that abuts on the shear reinforcing bar HR, and is shown in FIGS. 1 and 4. As described above, the first main bar holding region 112 and the second main bar holding area 113 are formed in an L shape by expanding at a substantially right angle via the arc-shaped main bar contact portion that abuts on the main bar VR, respectively. There is.

Further, as shown in FIGS. 1 to 5, the reinforcing bar fixing tool 100 according to the first embodiment has a U-shaped locking region 121 that is locked from the outside to the first fastening region 114 of the reinforcing bar fixing tool main body 110. It has a fastening bolt 120 made of steel bar, which is connected to one end of the locking region and has a linear screw region 122 through which the second fastening region 115 of the reinforcing bar fixture main body 110 is inserted.

Further, the reinforcing bar fixing tool 100 according to the first embodiment has a fastening nut 130 with a washer screwed to the fastening bolt 120 from the outside of the second fastening region 115 of the reinforcing bar fixing tool main body 110.

Further, as shown in FIGS. 1 to 3, the first main bar holding region 112 of the reinforcing bar fixing device main body 110 is arranged so as to face the second main bar holding area 113 of the reinforcing bar fixing tool main body 110, and the first main bar is arranged. The main bar contact portion of the holding area 112 is provided with four so-called water drop type first main bar rib engaging recesses 112r that engage with the reinforcing rib VRR of the main bar VR, and the main bar of the second main bar holding area 113 is provided. The contact portion is provided with four so-called water drop type second main bar rib engaging recesses 113r that engage with the reinforcing rib VRR of the main bar VR.

As shown in FIG. 2, the first main bar rib engaging recess 112r and the second main bar rib engaging recess 113r that engage with the reinforcing rib VR of the main bar VR are the first main bar holding region 112 and the second main bar holding area 112. It is provided at the same position as the holding area 113.

The first main bar rib engaging recess 112r and the second main bar rib engaging recess 113r that engage with the reinforcing rib VRR of the main bar VR expand substantially at right angles via the arcuate main bar contact portion that abuts the main bar. The open L-shaped first main muscle holding region 112 and the second main muscle holding region 113 are arranged so as to avoid the innermost portions 112a and 113a, respectively.

Furthermore, as shown in FIG. 7, the first main bar holding region 112 includes a first main bar holding region large curvature portion 112t provided with the first main bar rib engaging recess 112r and the first main bar rib engaging recess. The first main muscle holding region has a small curvature portion 112g without 112r, and the second main muscle holding region 113 has a large second main muscle holding region 113r having a second main muscle rib engaging recess 113r. It has a curvature portion 113t and a second main bar holding region small curvature portion 113g that does not have the second main bar rib engaging recess 113r.

Next, a procedure for fixing the intersection portion formed by arranging the main bar VR orthogonally to the corner formed by bending the shear reinforcing bar HR shearing reinforcing bar will be described using the reinforcing bar fixing tool 100 according to the present invention.

First, the shear reinforcing bar HR is arranged so as to surround the main bar VR and orthogonal to the main bar VR at a predetermined position of the main bar VR having a pair of reinforcing rib VRs protruding along the longitudinal direction of the reinforcing bar. As a result, an intersecting portion is formed in which the main bar VR is arranged orthogonally to the corner formed by bending the shear reinforcing bar HR.

Next, the shear reinforcing bar contact portion inside the curve of the U-shaped shear reinforcing bar holding region 111 of the reinforcing bar fixing body 110 is brought into contact with the shear reinforcing bar HR from the front side, and the reinforcing bar fixing body 110 is brought into contact with the shear reinforcing bar HR. The whole is hung from the back side of the main bar VR, and the main bar contact site inside the L-shaped curves of the first main bar holding area 112 and the second main bar holding area 113 is laid from the back side of the main bar VR. It is brought into contact with the main bar VR.

Further, the U-shaped locking region 121 of the fastening bolt 120 is locked to the first fastening region 114 from the outside, and the screw region 122 connected to one end of the locking region 121 is inserted into the second fastening region 115 from the inside. ..
Then, the fastening nut 130 with a washer is lightly screwed into the screwed region 122 of the fastening bolt 120 from the outside of the second fastening region 115 to temporarily fix the reinforcing bar fixing tool 100.

When the main bar VR is rotated and rotated while the reinforcing bar fixing tool 100 is temporarily fixed, the reinforcing rib VRR of the main bar VR becomes the first main bar rib engaging recess 112r and the second main bar holding of the first main bar holding region 112. Engaging with the second main bar rib engaging recess 113r in the region 113, the rotation stops, and the positioning of the main bar VR is completed.

In this state, the main bar VR and the shear reinforcing bar HR can be fixed by using the reinforcing bar fixing tool 100 at the intersection thereof by further turning the fastening nut 130 with a washer screwed into the screw region 122. can.

As described above, according to the reinforcing bar fixture 100 according to the first embodiment, at one end of the U-shaped shear reinforcing bar holding region 111 and the shear reinforcing muscle holding region 111 that hold the shear reinforcing bar HR. The first main bar holding area 112 that continuously holds the main bar VR, the U-shaped first fastening area 114 that connects to the first main bar holding area 112, and the main bar VR that is connected to the other end of the shear reinforcing bar holding area 111. Reinforcing bar fixture body 110 made of steel bar having a second main bar holding area 113 and a U-shaped second fastening area 115 connected to the second main bar holding area 113, and a first fastening area 114. Fastening to a fastening bolt 120 made of steel bar having a U-shaped locking region 11 to be locked from the outside and a linear screw region 122 connected to one end of the locking region 121 and inserting a second fastening region 115. It consists of a fastening nut 130 with a seat that is screwed into the bolt 120 from the outside of the second fastening region 115, and the first main bar holding area 112 and the second main bar holding area 113 are in contact with the main bar VR. By expanding at substantially right angles through the contact sites and forming L-shapes, the first main muscle holding region 112 and the second main muscle holding region 113 toward the shear reinforcing muscle holding region 111. A force that strongly presses the main bar VR against the shear reinforcing bar HR is generated, and the main bar VR is sheared from the first main bar holding region 112 and the second main bar holding area 13 toward the first fastening region 114 and the second fastening region 115. A strong pressing force is generated on the reinforcing bar HR, and these resultant forces face the innermost corner of the corner formed by bending the shear reinforcing bar HR, so that the main bar VR is formed by bending the shear reinforcing bar HR. It can be firmly fixed by being in close contact with the innermost corner of the corner.

Further, the reinforcing bar fixing tool main body 110 engages with the reinforcing bar VRR of the main bar VR at the main bar contact portion of the first main bar holding region 112 and the reinforcing bar contact portion of the second main bar holding region 113. By providing the engaging recess 112r and the second main bar rib engaging recess 113r, the reinforcing rib VRR of the main bar VR becomes the first main bar rib engaging recess 112r and the second main bar rib engaging recess of the reinforcing bar fixture main body 110. Since it engages with 113r, it is possible to prevent the main bar VR from rotating when the intersecting portion between the main bar VR and the shear reinforcing bar HR is fixed.

Further, the shear reinforcing bar rib engaging recess 111r is arranged so as to avoid the innermost portion 111a of the shear reinforcing bar holding region 111, and the first main bar rib engaging recess 112r is the innermost portion of the first main bar holding region 112. The rib HRR for reinforcing the shear reinforcing bar HR is formed by avoiding the portion 112a and arranging the second main bar rib engaging recess 113r avoiding the innermost portion 113a of the second main bar holding region 113. When engaged with the shear reinforcing bar rib engaging recess 111r, the other reinforcing rib HRR of the shear reinforcing bar HR is fixed without contacting the intersecting main bar VR, and the reinforcing rib VRR of the main bar VR is fixed. When engaged with the first main bar rib engaging recess 112r and the second main bar rib engaging recess 113r, the other reinforcing rib VRR of the engaged main bar VR does not abut on the intersecting shear reinforcing bar HR. After fixing the intersection of the main bar VR and the shear reinforcement HR, even if the shear reinforcement HR or the main bar VR rotates and rotates due to an external force, the intersection does not loosen and is firmly fixed. can do.

Furthermore, the first main bar holding region 112 does not include the first main bar holding region large curvature portion 112t having the first main bar rib engaging recess 112r and the first main bar rib engaging recess 112r. The second main muscle holding region 113 has a small curvature portion 112g of the holding region, and the second main muscle holding region has a large curvature portion 113t and the second main muscle rib engagement with the second main muscle rib engaging recess 113r. By having the second main bar holding area small curvature portion 113g which does not have the recess 113r, the reinforcing rib VRR rotates and positions the main bar VR by rotating the first main bar holding area 112. When the first main muscle holding region small curvature portion 112g reaches the first main muscle holding region large curvature portion 112t, or the second main muscle holding region 113 from the second main muscle holding region small curvature portion 113g to the second When the main bar holding region reaches the large curvature portion 113t, the resistance to rotation increases and stops, so the rib VRR for reinforcing the main bar VR can be replaced with the first main bar rib engaging recess 112r and the second main bar rib with a simpler operation. The intersecting portion can be fixed by engaging with the engaging recess 113r more reliably.

Then, the first main bar rib engaging recess 112r is continuous with the first main bar rib engaging recess steep slope 112rs and the first main bar rib engaging recess steep slope 112rs along the longitudinal direction of the first main bar holding region 112. The rib engaging recess is formed by the gentle slope 112rg, and the second main bar rib engaging recess 113r is formed by the second main bar rib engaging recess steep slope 113rs and the second main bar rib engagement along the longitudinal direction of the second main bar holding region 113. Since it is formed by the second main bar rib engaging recess gentle slope 113 rg continuous with the joint recess steep slope 113 rs, the main bar VR is rotated in one direction and the reinforcing rib VRR is placed on the first main bar rib engaging recess gentle slope 112 rg side. When the first main bar rib engaging recess 112r is engaged with the first main bar rib engaging recess 112r so as to face the steep slope 112rs of the first main bar rib engaging recess, the first main bar rib engaging recess steep slope 112rs plays the role of a stopper to reinforce the main bar VR. The rib VRR abuts on the steep slope 112rs of the first main bar rib engaging recess and sits down, and the main bar VR is turned in one direction to engage the reinforcing rib VRR from the gentle slope 113rg side of the second main bar rib engaging recess. When the second main bar rib engagement recess 113r is engaged so as to face the concave steep slope 113rs, the second main bar rib engagement concave steep slope 113rs acts as a stopper and the reinforcing rib VRR of the main bar VR becomes the second main bar rib. Since the seat is seated in contact with the steep slope 113rs of the engaging recess, the reinforcing rib VRR of the main bar VR can be securely fixed to the first main bar rib engaging recess 112r and the second main bar rib engaging recess 113r with a simple operation. can.

In addition, it is continuous with the steep slope 112rs of the first main bar rib engaging recess and the steep slope 112rs of the first main bar rib engaging recess along the longitudinal direction of the first main bar holding region 112 formed in the first main bar rib engaging recess 112r. The first main bar rib engaging recess gentle slope 112 rg, the second main bar rib engaging recess steep slope 113 rs and the second main bar rib along the longitudinal direction of the second main bar holding region 113 formed in the second main bar rib engaging recess 113r. The second main bar rib engaging recess gentle slope 113 rg continuous with the engagement recess steep slope 113rs is provided at the same position in the first main bar holding region 112 and the second main bar holding region 113, so that the main bar VR Since the reinforcing rib VRR of the above engages with both the first main bar rib engaging recess 112r of the first main bar holding region 112 and the second main bar rib engaging recess 113r of the second main bar holding area 113, the intersecting portion is formed. When fixed, the rotation of the main bar VR can be reliably prevented from rotating.

Next, a second embodiment of the reinforcing bar fixture according to the present invention will be described with reference to FIG.
Here, FIG. 6 is a schematic view showing a reinforcing bar fixture according to a second embodiment of the present invention.

The rebar fixing tool 200 according to the second embodiment of the present invention is different from the rebar fixing tool 100 according to the first embodiment described above in the number and specific aspects of the water droplet type rib engaging recesses, and the like. Since there is basically no change in the form of the above, the overlapping description will be omitted by adding the corresponding reference numerals in the 200 series to the same parts as the reinforcing bar fixtures of the first embodiment described above.

In the second embodiment, the first main bar rib engaging recess steep slope 212rs and the first main bar rib engaging along the longitudinal direction of the first main bar holding region 212 formed in the water drop type first main bar rib engaging recess 212r. The first main bar rib engaging recess gentle slope 212rg continuous with the concave steep slope 212rs and the second main bar rib engaging recess steep slope along the longitudinal direction of the second main bar holding region 213 formed in the second main bar rib engaging recess 213r. As shown in FIG. 6, the 213rs and the second main bar rib engaging recess gentle slope 213rg continuous with the second main bar rib engaging recess steep slope 213rs are the first main bar holding area 212 and the second main bar holding area 213. The reinforcing bar fixture 200 is configured in the same manner as in the first embodiment, except that the reinforcing bars are provided in the opposite directions.

According to the reinforcing bar fixture 200 according to the second embodiment, the first main bar rib engaging recess steep slope 212rs and the first along the longitudinal direction of the first main bar holding region 212 formed in the first main bar rib engaging recess 212r. Main bar rib engaging recess The first main bar engaging recess gentle slope 212rg continuous with the steep slope 212rs and the second main bar rib along the longitudinal direction of the second main bar holding region 213 formed in the second main bar rib engaging recess 213r. Engagement recess steep slope 213rs and second main bar rib engagement recess The second main bar rib engagement recess gentle slope 213rg continuous with the steep slope 213rs is located at the same position in the first main bar holding area 212 and the second main bar holding area 213. When the main bar VR is rotated and positioned in the opposite direction, the reinforcing rib VRR of the main bar VR rotates and rotates in either direction with the same force to hold the first main bar. Since it engages with both the first main bar rib engaging recess 212r of 212 and the second main bar rib engaging recess 213r of the second main bar holding region 213, the reinforcing rib VRR of the main bar VR can be positioned with a simpler operation. The intersection can be fixed more reliably.

The reinforcing bar fixing device according to the present invention has been described above with reference to the first embodiment and the second embodiment, but the present invention is not limited to these, and the knowledge of those skilled in the art is not deviated from the gist thereof. Based on the above, various improvements, modifications, and changes can be made.

The reinforcing bar fixing tool according to the present invention can be used when fixing the main reinforcing bar and the shear reinforcing bar to be assembled at the site in concrete work at the intersection, and in addition, the reinforcing bar fixing tool is assembled in advance in a factory into a desired shape at the construction site. It can be used as a reinforcing bar fixing tool in the production of various unit reinforcing bars to be transported to.

100, 200 ... Reinforcing bar fixture 110, 210 ... Reinforcing bar fixture body 111, 211 ..... One main muscle holding area 112a, 212a ... First main muscle holding area innermost part 112t, 212t ... First main muscle holding area Large curvature part 112g, 212g ... First main muscle holding area Small curvature parts 112r, 212r ... First main bar rib engaging recess 112rs, 212rs ... First main bar rib engaging recess steep slope 112rg, 212rg ... First main bar rib engaging recess gentle slope 113, 213 ...・ ・ ・ Second main muscle holding area 113a, 213a ・ ・ ・ ・ Second main muscle holding area deepest part 113t, 213t ・ ・ ・ ・ Second main muscle holding area large curvature part 113g, 213g ・ ・ ・ ・ Second Main bar holding area Small curvature site 113r, 213r ... Second main bar rib engaging recess 113rs, 213rs ... Second main bar rib engaging recess steep slope 113rg, 213rg ... Second main bar rib engaging recess gentle slope 114, 214 ... First fastening area 115, 215 ... Second fastening area 120, 220 ... Fastening bolt 121, 221 ... Locking area 122, 222 ······················································································································································································· HR ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Strain reinforcement

The present invention relates to a reinforcing bar fixator for arranging a main bar orthogonally to a corner of a shear reinforcing bar and fixing an intersecting portion between the main bar and the shear reinforcing bar.

Conventionally, in concrete work for creating structures such as columns or beams, it is necessary to arrange the main bars orthogonally to the corners of the shear reinforcing bars in the concrete placing space to fix the intersections, and it is bent with a straight rod. A binding tool for binding a rod-shaped body is disclosed.

Japanese Unexamined Patent Publication No. 11-336258

The binding tool described in Patent Document 1 is inserted with a hook portion entrance for inserting one side of the rod-shaped body bent at a right angle to the end portion of the main body portion that is rounded along the outer peripheral surface of the straight rod-shaped body. The hook part for holding the rod-shaped body, the entrance part for inserting the other side of the rod-shaped body bent at a substantially right angle, and the holding part for holding the inserted rod-shaped body are provided at the other end of the main body part. Although it is provided, since the fixing of the straight rod-shaped body is only supported by the elastic piece, the binding strength between the rod-shaped bodies is not sufficient when it is used for the structural reinforcing bar, and the straight rod-shaped body is provided. When the body is equipped with reinforcing ribs such as deformed reinforcing bars, the binding state becomes loose when the straight rod-shaped body rotates and rotates for some reason, and there is a problem that one of the rod-shaped bodies shifts from the binding position. there were.

Therefore, the present invention solves the problems of the prior art as described above. To provide a reinforcing bar fixture that can firmly fix the main bar in close contact with the innermost corner of the corner formed by bending the shear reinforcing bar and prevent problems such as loosening due to the rotation of the main bar. Is.

The invention according to claim 1 is a reinforcing bar fixing tool for fixing a crossing portion formed by arranging a main bar having a pair of reinforcing ribs protruding along the longitudinal direction of the reinforcing bar at right angles to a corner formed by bending a shear reinforcing bar. A U-shaped shear reinforcing bar holding region that holds the shear reinforcing bar, a first main muscle holding region that connects to one end of the shear reinforcing bar holding region and holds the main muscle, and the first main muscle holding region. In the U-shaped first fastening region connected to the one main muscle holding region and the second main muscle holding region and the second main muscle holding region connected to the other end of the shear reinforcing bar holding region to hold the main muscle. A reinforcing bar fixture body made of steel bar having a continuous U-shaped second fastening region, and a U-shaped locking region that is locked to the first fastening region from the outside and one end of the locking region. A fastening bolt made of steel bar having a linear screw region through which the second fastening region is inserted, and a fastening nut with a washer screwed onto the fastening bolt from the outside of the second fastening region. The main bar holding area and the second main bar holding area are expanded at substantially right angles via the arc-shaped main bar contacting portion that abuts on the main bar to form an L-shape, respectively, and the reinforcing bar fixing body body is formed. The above-mentioned problems are solved by providing the rib engaging recess that engages with the reinforcing rib of the main bar at the contact portion of the main bar.

The invention according to claim 2 is arranged so as to avoid the innermost portions of the first main muscle holding region or the second main muscle holding region, in addition to the configuration of the invention according to claim 1. , It solves the above-mentioned problems.

In the invention according to claim 3, in addition to the configuration of the invention according to claim 1 or 2, the first main bar holding region or the second main bar holding region includes the rib engaging recess. By having a large curvature portion and a small curvature portion that does not have the rib engaging recess, the above-mentioned problems are further solved.

In the invention according to claim 4, in addition to the configuration of the invention according to any one of claims 1 to 3, the rib engaging recess is formed in the first main bar holding region or the second main bar holding region. The above-mentioned problems are further solved by being formed by a steep slope along the longitudinal direction of the holding region and a gentle slope continuous with the steep slope.

The invention according to claim 5 is formed in a rib engaging recess that engages with a reinforcing rib of the vertical bar main bar, in addition to the configuration of the invention according to any one of claims 1 to 4. A steep slope along the longitudinal direction of the first vertical muscle main muscle holding region and the second vertical muscle main muscle holding region and a gentle slope continuous with the steep slope, respectively, are the first vertical muscle main muscle holding region and the second vertical muscle. The above-mentioned problems are further solved by providing the muscle main muscle holding region at the same position in the same direction or in the opposite direction.

According to the reinforcing bar fixing tool of the present invention, the main bar having a pair of reinforcing ribs protruding along the longitudinal direction of the reinforcing bar is arranged at right angles to the corners formed by the bending of the shear reinforcing bars to fix the intersecting portion. Not only can the main bar and the shear reinforcing bar be fixed at these intersections, but also the following configuration peculiar to the present invention can exert the effect peculiar to the present invention.

According to the reinforcing bar fixing tool of the invention according to claim 1 of the present invention, the main bar is held by being connected to one end of the U-shaped shear reinforcing bar holding region and the shear reinforcing bar holding region that hold the shear reinforcing bar. The U-shaped first fastening area connected to the first main bar holding area and the first main bar holding area, and the second main bar holding area and the second main bar holding area connected to the other end of the shear reinforcing bar holding area to hold the main bar. A reinforcing bar fixture body made of steel bar having a U-shaped second fastening region connected to the two main bar holding regions, and a U-shaped locking region and a locking region that are locked to the first fastening region from the outside. It consists of a fastening bolt made of steel bar having a linear screw region that connects to one end and inserts a second fastening region, and a fastening nut with a seat that is screwed into the fastening bolt from the outside of the second fastening region. The main bar holding area and the second main bar holding area are formed in an L shape by expanding at substantially right angles via the arc-shaped main bar contact portion that abuts on the main bar, whereby the first main bar holding area is formed. A force is generated to strongly press the main bar against the shear reinforcing bar from the holding area and the second main bar holding area toward the shear reinforcing bar holding area, and from the first main bar holding area and the second main bar holding area to the fastening area. A force is generated that strongly presses the main bar against the shearing auxiliary muscle, and these resultant forces are directed toward the innermost corner of the corner formed by the bending of the shear reinforcing bar, so that the main bar is formed by bending the shear reinforcing bar. It can be firmly fixed by being in close contact with the innermost corner of the corner.

Further, since the reinforcing bar fixing tool main body is provided with a rib engaging recess that engages with the reinforcing rib of the main bar at the contact portion of the main bar, the reinforcing rib of the main bar is engaged with the rib engaging recess of the reinforcing bar fixing tool main body. Therefore, it is possible to prevent the rotation of the main bar when the intersection of the main bar and the shear reinforcing bar is fixed.

According to the reinforcing bar fixing tool of the invention according to claim 2, in addition to the effect of the reinforcing bar fixing tool of the invention according to claim 1, the rib engaging recess is formed in the first main bar holding region or the second main bar. By avoiding the innermost part of each of the holding regions, when one reinforcing rib of the main bar engages with the rib engaging recess, the other reinforcing rib of the engaged reinforcing bar intersects. Since the rebar is fixed without abutting against the bent reinforcing bar, even if the main rebar rotates and rotates due to an external force after the crossed portion is fixed, it is possible to realize a firm fixing in which the crossed portion does not loosen.

According to the reinforcing bar fixing device of the invention according to the third aspect, in addition to the effect of the reinforcing bar fixing device of the invention according to the first or second aspect, the first main bar holding area or the second main bar holding area is formed. By having a large curvature portion having a rib engaging recess and a small curvature portion not having a rib engaging recess, the first main rebar holding region or the second main rebar holding region is ribbed. By having a large curvature portion having a joint recess and a small curvature portion not having a rib engaging recess, the reinforcing rib is a main bar holding region when the reinforcing bar is rotated and positioned. When the small curvature part of the rebar reaches the large curvature part, the resistance of the rotation rotation increases and stops. Can be fixed.

According to the reinforcing bar fixing tool of the invention according to claim 4, in addition to the effect of the reinforcing bar fixing tool of the invention according to any one of claims 1 to 3, the rib engaging recess is the first main bar. The rib engaging recess is formed by the steep slope along the longitudinal direction of the holding region or the second main bar holding region and the gentle slope continuous with the steep slope, so that the rib engaging recess is formed in the first main bar holding region or the second main bar. Since it is formed of a steep slope along the longitudinal direction of the holding region and a gentle slope continuous with the steep slope, the main bar is rotated in one direction and the reinforcing ribs are provided with ribs so as to go from the gentle slope side to the steep slope side. When engaged with the joint recess, the steep slope acts as a stopper and the reinforcing rib of the main bar comes into contact with the steep slope and sits down, so the reinforcing rib of the main bar is securely fixed to the rib engaging recess with a simple operation. be able to.

According to the reinforcing bar fixing tool of the invention according to claim 5, in addition to the effect of the reinforcing bar fixing tool of the invention according to any one of claims 1 to 4, it engages with the reinforcing rib of the main bar. The steep slopes along the longitudinal direction of the first main bar holding area and the second main bar holding area formed in the rib engaging recess and the gentle slopes continuous with the steep slopes are the first main bar holding area and the second main bar holding area, respectively. By being provided at the same position as the region, the reinforcing rib of the main bar engages with the rib engaging recesses of both the first main bar holding area and the second main bar holding area, so that the intersecting portion is fixed. At this time, the rotation of the main bar can be reliably prevented.

Further, a steep slope along the longitudinal direction of the first main bar holding region and the second main bar holding region formed in the rib engaging recess that engages with the reinforcing rib of the main bar, and a gentle slope continuous with the steep slope, respectively, are the first. Since the one main muscle holding area and the second main muscle holding area are provided in opposite directions at the same position, when the main muscle is rotated and positioned, the main muscle can be rotated in either direction. Since the reinforcing rib engages with both the rib engaging recess in the first main bar holding area and the rib engaging recess in the second main bar holding area with the same force, the reinforcing rib of the main bar can be positioned with a simpler operation. The intersection can be fixed more reliably.

The schematic diagram which shows the mode that the main bar and the shear reinforcement bar are fixed by using the reinforcing bar fixing tool of this invention. The schematic diagram which shows the reinforcing bar fixture which concerns on 1st Embodiment of this invention. The schematic diagram which shows the reinforcing bar fixture which concerns on 1st Embodiment of this invention. The schematic diagram which shows the reinforcing bar fixture which concerns on 1st Embodiment of this invention. The schematic diagram which shows the fastening bolt and the fastening nut with a washer of the reinforcing bar fixing tool which concerns on 1st Embodiment of this invention. The schematic diagram which shows the reinforcing bar fixture which concerns on 2nd Embodiment of this invention. The explanatory view which shows the structure common to the 1st main bar holding area and the 2nd main bar holding area of the reinforcing bar fixing tool of this invention.

The reinforcing bar fixative of the present invention has a U-shaped shear reinforcing bar holding region that holds the shear reinforcing bar, and a first main bar holding region and a first main bar holding region that are connected to one end of the shear reinforcing bar holding region and hold the main bar. U-shaped first fastening area connected to one main bar holding area and U-shaped connected to the second main bar holding area and second main bar holding area connecting to the other end of the shear reinforcing bar holding area and holding the main bar. A reinforcing bar fixture body made of steel bar having a second fastening region in the shape of a U-shaped locking region to be locked to the first fastening region from the outside, and a second fastening region connected to one end of the locking region. It consists of a fastening bolt made of steel bar with a linear screw region to be inserted and a fastening nut with a seat that is screwed into the fastening bolt from the outside of the second fastening region. The holding area is formed in an L-shape by expanding at a substantially right angle via the arc-shaped main bar contact portion that abuts on the main bar, and the reinforcing bar fixture main body has a rib for reinforcing the main bar at the main bar contact site. The rib engagement recess is provided to engage, and the reinforcing bar fixture body is provided with a rib engagement recess that engages with the reinforcing rib of the main bar at the contact portion of the main bar, so that the shear reinforcing bar bends the main bar. As long as it can be firmly fixed in close contact with the innermost corner of the corner to be formed and can prevent the rotation of the main bar when the intersection of the main bar and the shear reinforcing bar is fixed. The specific embodiment may be any.

For example, instead of locking the fastening bolt to the first fastening region and screwing the fastening nut with a washer from the outside of the second fastening region, the fastening bolt is locked to the second fastening region and the first fastening region is used. A fastening nut with a washer may be screwed from the outside of the.

Further, as the steel bar constituting the reinforcing bar fixture of the present invention, in addition to round steel, steel bars having a cross-sectional shape different from that of a circle, such as ordinary reinforcing bars and deformed reinforcing bars, or steel bars having a non-constant cross-sectional shape can be used.

In the present invention, the rib engaging recess that engages with the reinforcing rib of the main bar provided at the main bar contact portion of the first main bar holding region, and the main bar provided at the main bar contact portion of the second main bar holding area. At least one rib engaging recess that engages with the reinforcing rib may be provided in each of the first main bar holding area and the second main bar holding area, but if a plurality of rib engaging recesses are provided, the main bar rotates on its axis. It is more preferable because the reinforcing ribs are quickly engaged with any of the rib engaging recesses with a small amount of rotation during positioning to be rotated.

As the main reinforcing bar to be fixed by the reinforcing bar fixing tool of the present invention, a linear reinforcing bar constituting a column, beam, wall or other structure made of reinforced concrete can be selected. Further, as the shear reinforcing bar fixed by the reinforcing bar fixing tool of the present invention, a band bar (hoop), a stirrups (star wrap), and a core muscle (secondary band bar, sub-barrel muscle) can be selected. Spiral bars, which are high-strength shear reinforcement bars, and weld-closed bars can also be selected.

The reinforcing bar fixing tool of the present invention is not limited to the intersection of the main bar and the band bar arranged at the four corners of the column, and the intersection of the main bar (upper end bar or lower end bar) and the stirrups arranged at the four corners of the beam. It can be widely used for fixing the reinforcing bars to each other at the intersection formed by arranging the linear reinforcing bars orthogonally to the corners formed by bending the other reinforcing bars.

Hereinafter, the first embodiment of the reinforcing bar fixture according to the present invention will be described with reference to FIGS. 1 to 5 and 7.

Here, FIG. 1 is a schematic view showing how the main bar and the shear reinforcing bar are fixed by using the reinforcing bar fixing tool of the present invention, and FIG. 2 is a schematic view showing a state in which the main bar and the shear reinforcing bar are fixed, and FIG. 2 is a reinforcing bar fixing according to the first embodiment of the present invention. FIG. 3 is a schematic view showing a tool, FIG. 3 is a schematic view showing a reinforcing bar fixing tool according to the first embodiment of the present invention, and FIG. 4 is a schematic view showing a reinforcing bar fixing tool according to the first embodiment of the present invention. FIG. 5 is a schematic plan view showing a fastening bolt and a fastening nut with a seat of the reinforcing bar fixing tool according to the first embodiment of the present invention, and FIG. 7 is a first diagram of the reinforcing bar fixing tool of the present invention. It is explanatory drawing which shows the structure common to the main muscle holding area and the second main muscle holding area.

As shown in FIG. 1, the reinforcing bar fixture 100 according to the first embodiment is orthogonal to a corner formed by bending a main bar VR having a pair of reinforcing rib VRRs protruding along the longitudinal direction of the reinforcing bar and bending the shear reinforcing bar HR. The arranged intersecting portions are fixed, and as shown in FIGS. 1 to 5, a shear reinforcing bar holding region 111 that holds the shear reinforcing bar HR and one end of the shear reinforcing bar holding region 111 are fixed. At the other end of the first main bar holding area 112 that is connected to the main bar VR, the U-shaped first fastening area 114 that is connected to the first main bar holding area 112, and the shear reinforcing bar holding area 111. It has a reinforcing bar fixture body 110 made of steel bar having a second main bar holding area 113 that continuously holds the main bar VR and a U-shaped second fastening area 115 that is connected to the second main bar holding area 113. are doing.

The shear reinforcing bar holding region 111 of the reinforcing bar fixture main body 110 is formed in a U shape via an arc-shaped shear reinforcing bar contact portion that abuts on the shear reinforcing bar HR, and is shown in FIGS. 1 and 4. As described above, the first main bar holding region 112 and the second main bar holding area 113 are formed in an L shape by expanding at a substantially right angle via the arc-shaped main bar contact portion that abuts on the main bar VR, respectively. There is.

Further, as shown in FIGS. 1 to 5, the reinforcing bar fixing tool 100 according to the first embodiment has a U-shaped locking region 121 that is locked from the outside to the first fastening region 114 of the reinforcing bar fixing tool main body 110. It has a fastening bolt 120 made of steel bar, which is connected to one end of the locking region and has a linear screw region 122 through which the second fastening region 115 of the reinforcing bar fixture main body 110 is inserted.

Further, the reinforcing bar fixing tool 100 according to the first embodiment has a fastening nut 130 with a washer screwed to the fastening bolt 120 from the outside of the second fastening region 115 of the reinforcing bar fixing tool main body 110.

Further, as shown in FIGS. 1 to 3, the first main bar holding region 112 of the reinforcing bar fixing device main body 110 is arranged so as to face the second main bar holding area 113 of the reinforcing bar fixing tool main body 110, and the first main bar is arranged. The main bar contact portion of the holding area 112 is provided with four so-called water drop type first main bar rib engaging recesses 112r that engage with the reinforcing rib VRR of the main bar VR, and the main bar of the second main bar holding area 113 is provided. The contact portion is provided with four so-called water drop type second main bar rib engaging recesses 113r that engage with the reinforcing rib VRR of the main bar VR.

As shown in FIG. 2, the first main bar rib engaging recess 112r and the second main bar rib engaging recess 113r that engage with the reinforcing rib VR of the main bar VR are the first main bar holding region 112 and the second main bar holding area 112. It is provided at the same position as the holding area 113.

The first main bar rib engaging recess 112r and the second main bar rib engaging recess 113r that engage with the reinforcing rib VRR of the main bar VR expand substantially at right angles via the arcuate main bar contact portion that abuts on the main bar. The open L-shaped first main muscle holding region 112 and the second main muscle holding region 113 are arranged so as to avoid the innermost portions 112a and 113a, respectively.

Furthermore, as shown in FIG. 7, the first main bar holding region 112 includes a first main bar holding region large curvature portion 112t provided with the first main bar rib engaging recess 112r and the first main bar rib engaging recess. The first main muscle holding region has a small curvature portion 112g without 112r, and the second main muscle holding region 113 has a large second main muscle holding region 113r having a second main muscle rib engaging recess 113r. It has a curvature portion 113t and a second main bar holding region small curvature portion 113g that does not have the second main bar rib engaging recess 113r.

Next, a procedure for fixing the intersection portion formed by arranging the main bar VR orthogonally to the corner formed by bending the shear reinforcing bar HR shearing reinforcing bar will be described using the reinforcing bar fixing tool 100 according to the present invention.

First, the shear reinforcing bar HR is arranged so as to surround the main bar VR and orthogonal to the main bar VR at a predetermined position of the main bar VR having a pair of reinforcing rib VRs protruding along the longitudinal direction of the reinforcing bar. As a result, an intersecting portion is formed in which the main bar VR is arranged orthogonally to the corner formed by bending the shear reinforcing bar HR.

Next, the shear reinforcing bar contact portion inside the curve of the U-shaped shear reinforcing bar holding region 111 of the reinforcing bar fixing body 110 is brought into contact with the shear reinforcing bar HR from the front side, and the reinforcing bar fixing body 110 is brought into contact with the shear reinforcing bar HR. The whole is hung from the back side of the main bar VR, and the main bar contact site inside the L-shaped curves of the first main bar holding area 112 and the second main bar holding area 113 is laid from the back side of the main bar VR. It is brought into contact with the main bar VR.

Further, the U-shaped locking region 121 of the fastening bolt 120 is locked to the first fastening region 114 from the outside, and the screw region 122 connected to one end of the locking region 121 is inserted into the second fastening region 115 from the inside. ..
Then, the fastening nut 130 with a washer is lightly screwed into the screwed region 122 of the fastening bolt 120 from the outside of the second fastening region 115 to temporarily fix the reinforcing bar fixing tool 100.

When the main bar VR is rotated and rotated while the reinforcing bar fixing tool 100 is temporarily fixed, the reinforcing rib VRR of the main bar VR becomes the first main bar rib engaging recess 112r and the second main bar holding of the first main bar holding region 112. Engaging with the second main bar rib engaging recess 113r in the region 113, the rotation stops, and the positioning of the main bar VR is completed.

In this state, the main bar VR and the shear reinforcing bar HR can be fixed by using the reinforcing bar fixing tool 100 at the intersection thereof by further turning the fastening nut 130 with a washer screwed into the screw region 122. can.

As described above, according to the reinforcing bar fixture 100 according to the first embodiment, at one end of the U-shaped shear reinforcing bar holding region 111 and the shear reinforcing muscle holding region 111 that hold the shear reinforcing bar HR. The first main bar holding area 112 that continuously holds the main bar VR, the U-shaped first fastening area 114 that connects to the first main bar holding area 112, and the main bar VR that is connected to the other end of the shear reinforcing bar holding area 111. Reinforcing bar fixture body 110 made of steel bar having a second main bar holding area 113 and a U-shaped second fastening area 115 connected to the second main bar holding area 113, and a first fastening area 114. Fastening to a fastening bolt 120 made of steel bar having a U-shaped locking region 11 to be locked from the outside and a linear screw region 122 connected to one end of the locking region 121 and inserting a second fastening region 115. It consists of a fastening nut 130 with a seat that is screwed into the bolt 120 from the outside of the second fastening region 115, and the first main bar holding area 112 and the second main bar holding area 113 are in contact with the main bar VR. By expanding at substantially right angles through the contact sites and forming L-shapes, the first main muscle holding region 112 and the second main muscle holding region 113 toward the shear reinforcing muscle holding region 111. A force that strongly presses the main bar VR against the shear reinforcing bar HR is generated, and the main bar VR is sheared from the first main bar holding region 112 and the second main bar holding area 13 toward the first fastening region 114 and the second fastening region 115. A strong pressing force is generated on the reinforcing bar HR, and these resultant forces face the innermost corner of the corner formed by bending the shear reinforcing bar HR, so that the main bar VR is formed by bending the shear reinforcing bar HR. It can be firmly fixed by being in close contact with the innermost corner of the corner.

Further, the reinforcing bar fixing tool main body 110 engages with the reinforcing bar VRR of the main bar VR at the main bar contact portion of the first main bar holding region 112 and the reinforcing bar contact portion of the second main bar holding region 113. By providing the engaging recess 112r and the second main bar rib engaging recess 113r, the reinforcing rib VRR of the main bar VR becomes the first main bar rib engaging recess 112r and the second main bar rib engaging recess of the reinforcing bar fixture main body 110. Since it engages with 113r, it is possible to prevent the main bar VR from rotating when the intersecting portion between the main bar VR and the shear reinforcing bar HR is fixed.

Further, the shear reinforcing bar rib engaging recess 111r is arranged so as to avoid the innermost portion 111a of the shear reinforcing bar holding area 111, and the first main bar rib engaging recess 112r is the innermost part of the first main bar holding area 112. The rib HRR for reinforcing the shear reinforcing bar HR is formed by avoiding the portion 112a and arranging the second main bar rib engaging recess 113r avoiding the innermost portion 113a of the second main bar holding region 113. When engaged with the shear reinforcing bar rib engaging recess 111r, the other reinforcing rib HRR of the shear reinforcing bar HR is fixed without contacting the intersecting main bar VR, and the reinforcing rib VRR of the main bar VR is fixed. When engaged with the first main bar rib engaging recess 112r and the second main bar rib engaging recess 113r, the other reinforcing rib VRR of the engaged main bar VR does not abut on the intersecting shear reinforcing bar HR. After fixing the intersection of the main bar VR and the shear reinforcement HR, even if the shear reinforcement HR or the main bar VR rotates and rotates due to an external force, the intersection does not loosen and is firmly fixed. can do.

Furthermore, the first main bar holding region 112 does not include the first main bar holding region large curvature portion 112t having the first main bar rib engaging recess 112r and the first main bar rib engaging recess 112r. The second main muscle holding region 113 has a small curvature portion 112g of the holding region, and the second main muscle holding region has a large curvature portion 113t and the second main muscle rib engagement with the second main muscle rib engaging recess 113r. By having the second main bar holding area small curvature portion 113g which does not have the recess 113r, the reinforcing rib VRR rotates and positions the main bar VR by rotating the first main bar holding area 112. When the first main muscle holding region small curvature portion 112g reaches the first main muscle holding region large curvature portion 112t, or the second main muscle holding region 113 from the second main muscle holding region small curvature portion 113g to the second When the main bar holding region reaches the large curvature portion 113t, the resistance to rotation increases and stops, so the rib VRR for reinforcing the main bar VR can be replaced with the first main bar rib engaging recess 112r and the second main bar rib with a simpler operation. The intersecting portion can be fixed by engaging with the engaging recess 113r more reliably.

Then, the first main bar rib engaging recess 112r is continuous with the first main bar rib engaging recess steep slope 112rs and the first main bar rib engaging recess steep slope 112rs along the longitudinal direction of the first main bar holding region 112. The rib engaging recess is formed by the gentle slope 112rg, and the second main bar rib engaging recess 113r is formed by the second main bar rib engaging recess steep slope 113rs and the second main bar rib engagement along the longitudinal direction of the second main bar holding region 113. Since it is formed by the second main bar rib engaging recess gentle slope 113 rg continuous with the joint recess steep slope 113 rs, the main bar VR is rotated in one direction and the reinforcing rib VRR is placed on the first main bar rib engaging recess gentle slope 112 rg side. When engaged with the first main bar rib engaging recess 112r so as to face the steep slope 112rs of the first main bar rib engaging recess, the first main bar rib engaging recess steep slope 112rs plays the role of a stopper to reinforce the main bar VR. The rib VRR abuts on the steep slope 112rs of the first main bar rib engaging recess and sits down, and the main bar VR is turned in one direction to engage the reinforcing rib VRR from the gentle slope 113rg side of the second main bar rib engaging recess. When the second main bar rib engagement recess 113r is engaged so as to face the concave steep slope 113rs, the second main bar rib engagement concave steep slope 113rs acts as a stopper and the reinforcing rib VRR of the main bar VR becomes the second main bar rib. Since the seat is seated in contact with the steep slope 113rs of the engaging recess, the reinforcing rib VRR of the main bar VR can be securely fixed to the first main bar rib engaging recess 112r and the second main bar rib engaging recess 113r with a simple operation. can.

In addition, it is continuous with the steep slope 112rs of the first main bar rib engaging recess and the steep slope 112rs of the first main bar rib engaging recess along the longitudinal direction of the first main bar holding region 112 formed in the first main bar rib engaging recess 112r. The first main bar rib engaging recess gentle slope 112 rg, the second main bar rib engaging recess steep slope 113 rs and the second main bar rib along the longitudinal direction of the second main bar holding region 113 formed in the second main bar rib engaging recess 113r. The second main bar rib engaging recess gentle slope 113 rg continuous with the engagement recess steep slope 113rs is provided at the same position in the first main bar holding region 112 and the second main bar holding region 113, so that the main bar VR Since the reinforcing rib VRR of the above engages with both the first main bar rib engaging recess 112r of the first main bar holding region 112 and the second main bar rib engaging recess 113r of the second main bar holding area 113, the intersecting portion is formed. When fixed, the rotation of the main bar VR can be reliably prevented from rotating.

Next, a second embodiment of the reinforcing bar fixture according to the present invention will be described with reference to FIG.
Here, FIG. 6 is a schematic view showing a reinforcing bar fixture according to a second embodiment of the present invention.

The rebar fixing tool 200 according to the second embodiment of the present invention is different from the rebar fixing tool 100 according to the first embodiment described above in the number and specific aspects of the water droplet type rib engaging recesses, and the like. Since there is basically no change in the form of the above, the overlapping description will be omitted by adding the corresponding reference numerals in the 200 series to the same parts as the reinforcing bar fixtures of the first embodiment described above.

In the second embodiment, the first main bar rib engaging recess steep slope 212rs and the first main bar rib engaging along the longitudinal direction of the first main bar holding region 212 formed in the water drop type first main bar rib engaging recess 212r. The first main bar rib engaging recess gentle slope 212rg continuous with the concave steep slope 212rs and the second main bar rib engaging recess steep slope along the longitudinal direction of the second main bar holding region 213 formed in the second main bar rib engaging recess 213r. As shown in FIG. 6, the 213rs and the second main bar rib engaging recess gentle slope 213rg continuous with the second main bar rib engaging recess steep slope 213rs are the first main bar holding area 212 and the second main bar holding area 213. The reinforcing bar fixture 200 is configured in the same manner as in the first embodiment, except that the reinforcing bars are provided in the opposite directions.

According to the reinforcing bar fixture 200 according to the second embodiment, the first main bar rib engaging recess steep slope 212rs and the first along the longitudinal direction of the first main bar holding region 212 formed in the first main bar rib engaging recess 212r. Main bar rib engaging recess The first main bar engaging recess gentle slope 212rg continuous with the steep slope 212rs and the second main bar rib along the longitudinal direction of the second main bar holding region 213 formed in the second main bar rib engaging recess 213r. Engagement recess steep slope 213rs and second main bar rib engagement recess The second main bar rib engagement recess gentle slope 213rg continuous with the steep slope 213rs is located at the same position in the first main bar holding area 212 and the second main bar holding area 213. When the main bar VR is rotated and positioned in the opposite direction, the reinforcing rib VRR of the main bar VR rotates and rotates in either direction with the same force to hold the first main bar. Since it engages with both the first main bar rib engaging recess 212r of 212 and the second main bar rib engaging recess 213r of the second main bar holding region 213, the reinforcing rib VRR of the main bar VR can be positioned with a simpler operation. The intersection can be fixed more reliably.

The reinforcing bar fixing device according to the present invention has been described above with reference to the first embodiment and the second embodiment, but the present invention is not limited to these, and the knowledge of those skilled in the art is not deviated from the gist thereof. Based on the above, various improvements, modifications, and changes can be made.

The reinforcing bar fixing tool according to the present invention can be used when fixing the main reinforcing bar and the shear reinforcing bar to be assembled at the site in concrete work at the intersection, and in addition, the reinforcing bar fixing tool is assembled in advance in a factory into a desired shape at the construction site. It can be used as a reinforcing bar fixing tool in the production of various unit reinforcing bars to be transported to.

100, 200 ... Reinforcing bar fixture 110, 210 ... Reinforcing bar fixture body 111, 211 ..... One main muscle holding area 112a, 212a ... First main muscle holding area innermost part 112t, 212t ... First main muscle holding area Large curvature part 112g, 212g ... First main muscle holding area Small curvature parts 112r, 212r ... First main bar rib engaging recess 112rs, 212rs ... First main bar rib engaging recess steep slope 112rg, 212rg ... First main bar rib engaging recess gentle slope 113, 213 ...・ ・ ・ Second main muscle holding area 113a, 213a ・ ・ ・ ・ Second main muscle holding area deepest part 113t, 213t ・ ・ ・ ・ Second main muscle holding area large curvature part 113g, 213g ・ ・ ・ ・ Second Main bar holding area Small curvature site 113r, 213r ... Second main bar rib engaging recess 113rs, 213rs ... Second main bar rib engaging recess steep slope 113rg, 213rg ... Second main bar rib engaging recess gentle slope 114, 214 ... First fastening area 115, 215 ... Second fastening area 120, 220 ... Fastening bolt 121, 221 ... Locking area 122, 222 ······················································································································································································· HR ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Strain reinforcement

Claims (5)

A rebar fixing tool that fixes an intersection formed by arranging a main bar having a pair of reinforcing ribs protruding along the longitudinal direction of the rebar at right angles to a corner formed by bending a shear reinforcing bar.
A U-shaped shear reinforcing bar holding region that holds the shear reinforcing bar, a first main muscle holding region that connects to one end of the shear reinforcing muscle holding region and holds the main muscle, and a first main muscle holding region. A U-shaped first fastening region connected to the region, a second main muscle holding region connecting to the other end of the shear reinforcing bar holding region and holding the main muscle, and a U-shaped connecting to the second main muscle holding region. The second fastening is connected to a reinforcing bar fixture body made of steel bar provided with the second fastening region, a U-shaped locking region that is locked to the first fastening region from the outside, and one end of the locking region. It consists of a fastening bolt made of steel bar having a linear screw region through which the region is inserted, and a fastening nut with a washer screwed into the fastening bolt from the outside of the second fastening region.
The first main bar holding area and the second main bar holding area are formed in an L shape by expanding at a substantially right angle via an arc-shaped main bar contact portion that abuts on the main bar.
A reinforcing bar fixing device, wherein the reinforcing bar fixing device main body is provided with a rib engaging recess that engages with a reinforcing rib of the main reinforcing bar at a contact portion of the main reinforcing bar. The reinforcing bar fixing tool according to claim 1, wherein the rib engaging recess is arranged so as to avoid the innermost portions of the first main bar holding region or the second main bar holding region. The first main bar holding region or the second main bar holding region has a large curvature portion having the rib engaging recess and a small curvature portion not having the rib engaging recess. The reinforcing bar fixture according to claim 1 or 2, which is characterized. A claim characterized in that the rib engaging recess is formed by a steep slope along the longitudinal direction of the first main bar holding region or the second main bar holding region, and a gentle slope continuous with the steep slope. The reinforcing bar fixture according to any one of items 1 to 3. A steep slope along the longitudinal direction of the first main bar holding region and the second main bar holding region formed in the rib engaging recess that engages with the reinforcing rib of the main bar, and a gentle slope continuous with the steep slope, respectively. The present invention according to any one of claims 1 to 4, wherein the first main bar holding area and the second main bar holding area are provided at the same position in the same direction or in the opposite direction. Reinforcing bar fixture.

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