Adjustment mechanism for staggered reinforcement bar

Abstract

To provide an adjustment mechanism for staggered reinforcement bars capable of easily adjusting positions of ends of the staggered reinforcement bars.SOLUTION: An adjustment mechanism 5 for staggered reinforcement bars arranges ends B1a of a first reinforcement bar B1 and a second reinforcement bar in a staggered pattern in a first direction. The adjustment mechanism comprises: a first stopper portion 52 for positioning the end B1a of the first reinforcement bar B1 to arrange the first reinforcement bar B1 in a first position; a second stopper portion for positioning the end of the second reinforcement bar to arrange the second reinforcement bar at a second position; and a position adjustment portion 54 for adjusting positions of the first stopper portion 52 and the second stopper portion in the first direction.SELECTED DRAWING: Figure 11

Description

[Technical Field]

[0001] The present invention relates to a mechanism for adjusting the staggered arrangement of reinforcement. [Background technology]

[0002] Conventionally, when manufacturing rebar mesh units in which rebars are arranged, assembly work has generally been performed based on construction drawings. Rebar mesh units are manufactured by placing the rebars one by one, mainly by manual labor. When handling large-diameter or long rebars in large-scale construction projects, depending on the type of rebar, the weight of each rebar can be heavy, and multiple workers must transport each rebar to the designated location and perform the rebar placement work. Because this work is extremely labor-intensive, in some cases, rebar placement work is performed using rebar placement devices or rebar placement robots (see Patent Documents 1, 2, and 3 listed below).

[0003] Patent Documents 1 and 2 disclose methods for arranging reinforcing bars in a staggered pattern. When arranging reinforcing bars in a staggered pattern, every other reinforcing bar is engaged with a roller, and the roller is rotated to slide every other reinforcing bar. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 1-75131 [Patent Document 2] Japanese Patent Application Publication No. 1-75132 [Patent Document 3] Japanese Patent Application Publication No. 4-347264 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the methods disclosed in Patent Documents 1 and 2 have a problem in that it is difficult to finely adjust the positions of the ends of the reinforcing bars that are arranged in a staggered pattern.

[0006] Therefore, the present invention has been made in consideration of the above circumstances, and provides a reinforcement stagger adjustment mechanism that can easily adjust the positions of the ends of reinforcement bars that are staggered. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention employs the following means. In other words, the staggered adjustment mechanism for reinforcement according to the present invention is a staggered adjustment mechanism for reinforcement that arranges the ends of a first reinforcing bar and a second reinforcing bar in a staggered pattern in a first direction, and is equipped with a first stopper portion that positions the end of the first reinforcing bar so that the first reinforcing bar is arranged in a first position, a second stopper portion that positions the end of the second reinforcing bar so that the second reinforcing bar is arranged in a second position, and a position adjustment portion that adjusts the positions of the first stopper portion and the second stopper portion in the first direction.

[0008] In the reinforcement stagger adjustment mechanism configured in this manner, the end of the first reinforcing bar is positioned by the first stopper portion, so that the first reinforcing bar is placed in a first position. The end of the second reinforcing bar is positioned by the second stopper portion, so that the second reinforcing bar is placed in a second position. The position adjustment portion adjusts the positions of the first stopper portion and the second stopper portion in the first direction. Therefore, by operating the position adjustment portion, the positions of the ends of the first reinforcing bar and the second reinforcing bar can be easily adjusted.

[0009] Furthermore, in the reinforcement staggered adjustment mechanism of the present invention, the first stopper portion, the second stopper portion, and the position adjustment portion are mounted on a staggered adjustment device, and the reinforcement device equipped with the staggered adjustment device is capable of traveling in the second direction along the rails of a reinforcement frame having rails extending in a second direction perpendicular to the first direction, and the position adjustment portion may be adjusted in accordance with a stopper adjustment amount C calculated by the following formula (1):

number

[0010] In the reinforcement staggered adjustment mechanism configured in this manner, the positions of the ends of the first reinforcing bar and the second reinforcing bar can be easily adjusted by adjusting the position adjustment part according to the stopper adjustment amount C calculated by equation (1).

[0011] Furthermore, the reinforcement staggered adjustment mechanism of the present invention may include a placement portion on which the first reinforcing bar and the second reinforcing bar are placed, the first stopper portion being fixed to the placement portion, and the second stopper portion being arranged to be able to appear and disappear in the vertical direction in the placement portion.

[0012] In the reinforcement staggered adjustment mechanism configured in this manner, the second stopper portion is provided so as to be able to move up and down in the mounting portion. To set it to the first position, the second stopper portion is simply moved downward, so that switching between the first position and the second position can be easily performed. [Effects of the Invention]

[0013] According to the reinforcing bar stagger adjustment mechanism of the present invention, the positions of the ends of the reinforcing bars to be staggered can be easily adjusted. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view of a reinforcement arrangement device equipped with a reinforcement zigzag adjustment mechanism according to one embodiment of the present invention. FIG. [Figure 2] FIG. 10 is a perspective view showing a reinforcing bar unit arranged by a reinforcing bar arrangement device. [Figure 3] FIG. 10 is a plan view showing a reinforcing bar unit arranged by a reinforcing bar arrangement device. [Figure 4] FIG. 1 is a perspective view showing a linear reinforcing bar arrangement device. [Figure 5] FIG. 2 is a front view showing the linear reinforcing bar arrangement device. [Figure 6] FIG. 4 is an enlarged view of a portion VI in FIG. 3. [Figure 7] FIG. 10 is a perspective view showing a mechanism for adjusting the staggered arrangement of reinforcement. [Figure 8] FIG. 10 is a perspective view showing a mechanism for adjusting the staggered arrangement of reinforcement. [Figure 9]FIG. 10 is a perspective view showing a mechanism for adjusting the staggered arrangement of reinforcement. [Figure 10] FIG. 10 is a perspective view showing a mechanism for adjusting the staggered arrangement of reinforcement. [Figure 11] FIG. 10 is a perspective view showing a state in which the first reinforcing bar is positioned by a first stopper portion of the reinforcing bar stagger adjustment mechanism. [Figure 12] 10 is a perspective view showing a state in which the second reinforcing bar is positioned by a second stopper portion of the reinforcing bar stagger adjustment mechanism. FIG. [Figure 13] FIG. 10 is a diagram showing the adjustment range of the reinforcement stagger adjustment mechanism. [Figure 14] FIG. 10 is a diagram showing a stopper adjustment amount. DETAILED DESCRIPTION OF THE INVENTION

[0015] A reinforcement bar zigzag adjustment mechanism according to one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a reinforcement arrangement device equipped with a reinforcement zigzag adjustment mechanism according to one embodiment of the present invention. As shown in Fig. 1, the reinforcement arrangement device 100 includes a reinforcement stand 1, a curved reinforcement arrangement device 2, and a straight reinforcement arrangement device 3. The curved reinforcement arrangement device 2 and the straight reinforcement arrangement device 3 correspond to the reinforcement arrangement devices in the claims.

[0016] Fig. 2 is a perspective view showing a reinforcing bar unit arranged by the reinforcing bar arrangement device 100. Fig. 3 is a plan view showing a reinforcing bar unit arranged by the reinforcing bar arrangement device 100. As shown in Figures 2 and 3, the length direction of the curved reinforcement A along the horizontal direction is defined as the curved reinforcement direction X, and the length direction of the straight reinforcement B along the horizontal direction is defined as the straight reinforcement direction Y. The curved reinforcement direction X and the straight reinforcement direction Y are perpendicular to each other. The reinforcement arrangement device 100 arranges a reinforcing bar unit D in which multiple curved reinforcement A and multiple straight reinforcement B are perpendicular to each other. The multiple curved reinforcement A are arranged at intervals in the straight reinforcement direction Y. The multiple straight reinforcement B are arranged at intervals in the curved reinforcement direction X.

[0017] As shown in FIG. 1, the reinforcement frame 1 has a support base 10, a curved reinforcement support base 11, and a straight reinforcement support base 16.

[0018] The support base 10 is installed on an installation surface. The support base 10 has a framework shape with a lattice formed inside the four-sided frame, for example, made up of multiple members extending in the curved muscle direction X and multiple members extending in the straight muscle direction Y.

[0019] The support base 10 is provided with a pair of rails 18, 18 that support a curved reinforcing bar arrangement device 2 (described later) so that it can move in the straight reinforcing bar direction Y. The pair of rails 18, 18 are provided at both ends of the support base 10 in the curved reinforcing bar direction X. The rails 18 extend in the straight reinforcing bar direction Y.

[0020] The support base 10 is provided with a pair of rails 19, 19 that support the linear reinforcing bar arrangement device 3 (described later) so that it can move in the curved reinforcing bar direction X. The pair of rails 19, 19 are provided at both ends of the support base 10 in the linear reinforcing bar direction Y. The rails 19 extend in the curved reinforcing bar direction X.

[0021] The curved bar support stand 11 has multiple curved bar support members 12. The curved bar support members 12 are linear members extending in the linear bar direction Y. The curved bar support members 12 are supported by a support base 10. The multiple curved bar support members 12 are arranged at intervals in the curved bar direction X. Since the curved bar A has a shape that is convex toward the center and upward in the curved bar direction X, among the multiple curved bar support members 12, the curved bar support members 12 arranged toward the center of the curved bar direction X are arranged higher than the curved bar support members 12 arranged at the end sides of the curved bar direction X. The curved bar support members 12 have multiple downwardly recessed grooves 12a formed at intervals in the linear bar direction Y. The curved bars A are placed in the grooves 12a.

[0022] The straight bar support stand 16 has multiple straight bar support members 17. The straight bar support members 17 are curved members that extend in the curved bar direction X and convex upward. The straight bar support members 17 are supported by the support base 10. The multiple straight bar support members 17 are arranged at intervals in the straight bar direction Y. The straight bar support members 17 have multiple downwardly recessed grooves 17a formed at intervals in the curved bar direction X. Straight bars B are placed in the grooves 17a.

[0023] The curved reinforcement arrangement device 2 can move the support base 10 in the straight reinforcement direction Y. The curved reinforcement arrangement device 2 moves from the position shown in FIG. 1 to one side Y1 in the straight reinforcement direction Y to the start point 1A, and then moves to the other side Y2 in the straight reinforcement direction Y, while arranging curved reinforcement A in the groove 12a of the curved reinforcement receiving member 12.

[0024] The straight reinforcing bar arrangement device 3 can move the support base 10 in the curved reinforcing bar direction X. The straight reinforcing bar arrangement device 3 moves from the position shown in Fig. 1 to one side X1 in the curved reinforcing bar direction X to the start point 1A, and then moves to the other side X2 in the curved reinforcing bar direction X while placing straight reinforcing bars B in the grooves 17a of the straight reinforcing bar receiving member 17. Note that the straight reinforcing bar arrangement device 3 may be configured to arrange straight reinforcing bars B, and then the curved reinforcing bar arrangement device 2 may arrange curved reinforcing bars A.

[0025] Fig. 4 is a perspective view of the linear reinforcing bar arrangement device, and Fig. 5 is a front view of the linear reinforcing bar arrangement device. The mechanisms provided in the curved reinforcing bar arrangement device 2 and the straight reinforcing bar arrangement device 3 will be explained using the drawing of the straight reinforcing bar arrangement device 3. As shown in Fig. 4, the curved reinforcing bar arrangement device 2 and the straight reinforcing bar arrangement device 3 each include a device main body 20, a reinforcing bar placing section 21, a reinforcing bar push-up section (not shown), a reinforcing bar delivery section 23, a reinforcing bar temporary placement section 25, a staggered adjustment device (staggered reinforcing bar arrangement mechanism) 5, and a reinforcing bar holding device 27.

[0026] The device main body 20 is movable in the curved bar direction X relative to the support base 10. A plurality of straight bars B can be placed on the upper side of the reinforcing bar placing section 21. The straight bars B placed on the reinforcing bar placing section 21 have not yet been arranged by the reinforcing bar arrangement gripping device 27. The reinforcing bar placing section 21 is configured to arrange the plurality of straight bars B close to one side X1. For example, the reinforcing bar placing section 21 has an axis oriented in the straight bar direction Y and is equipped with a conveyor that rotates so that the upper side moves to one side X1.

[0027] The reinforcing bar push-up unit is movable upward and downward and pushes upward the straight bars B that are positioned nearest to one side X1 among the plurality of straight bars B placed on the reinforcing bar placing unit 21.

[0028] The upper surface of the reinforcing bar feed-out section 23 is gradually inclined downward as it approaches the one side X1. The straight bar B pushed up by the reinforcing bar push-up section moves by rolling along the upper surface of the reinforcing bar feed-out section 23 toward the one side X1.

[0029] The reinforcing bar temporary storage section 25 is capable of placing the straight reinforcing bars B that have been moved by rolling on the upper surface of the reinforcing bar delivery section 23. The reinforcing bar temporary storage section 25 is configured to be able to move the straight reinforcing bars B to one side Y1.

[0030] The bar arrangement gripping device 27 picks up the straight bars B positioned by the zigzag adjustment device 5 described later, and arranges them in the grooves 17a of the straight bar receiving member 17.

[0031] FIG. 6 is an enlarged view of a portion VI in FIG. As shown in Figure 6, in reinforcing bar unit D, multiple curved bars A are arranged alternately with adjacent reinforcing bars in the straight bar direction Y at different positions in the curved bar direction X. The length of the difference in positions in the curved bar direction X is defined as the staggered amount L1. Multiple straight bars B are arranged alternately with adjacent reinforcing bars in the curved bar direction X at different positions in the straight bar direction Y. The length of the difference in positions in the straight bar direction Y is defined as the staggered amount M1.

[0032] A curved muscle A whose end is positioned closer to the other side X2 is called curved muscle A1. A curved muscle A whose end is positioned set back more to one side X1 than curved muscle A1 is called curved muscle A2. A straight muscle B whose end is positioned closer to one side Y1 is called straight muscle B1. A straight muscle B whose end is positioned set back more to the other side Y2 than straight muscle B1 is called straight muscle B2.

[0033] The straight reinforcing bar B located closest to the other side X2 is called the end reinforcing bar BX. The length from the reinforcing bar center of the end reinforcing bar BX to the end A1a of the curved reinforcing bar A1 is called the reinforcing bar projection dimension L2. The curved reinforcing bar A located closest to one side Y1 is called the end reinforcing bar AY. The length from the reinforcing bar center of the end reinforcing bar AY to the end B1a of the straight reinforcing bar B1 is called the reinforcing bar projection dimension M2.

[0034] The configuration of the zigzag adjustment device 5 will be described. The stagger adjustment device 5 is provided with a mechanism that can finely adjust and set the stagger amounts L1 and M1 described in the rebar arrangement drawings that are the basis for manufacturing Figures 3 and 6, based on the mechanical conditions of the reinforcement frame 1, curved reinforcement arrangement device 2, and straight reinforcement arrangement device 3.

[0035] Curved reinforcement A installed in the curved reinforcement arrangement device 2 is arranged with reference to the other side X2 of curved reinforcement A. Straight reinforcement B installed in the straight reinforcement arrangement device 3 is arranged with reference to one side Y1 of straight reinforcement B. For this reason, as shown in Figure 1, the staggered adjustment device 5 is installed on the other side X2 of the curved reinforcement arrangement device 2. The staggered adjustment device 5 of the curved reinforcement arrangement device 2 arranges the ends of curved reinforcement A in a staggered pattern in the curved reinforcement direction X (staggered reinforcement). The staggered adjustment device 5 is installed on one side Y1 of the straight reinforcement arrangement device 3. The staggered adjustment device 5 of the straight reinforcement arrangement device 3 arranges the ends of straight reinforcement B in a staggered pattern in the straight reinforcement direction Y (staggered reinforcement).

[0036] 7 to 10 are perspective views showing the zigzag adjustment device 5. FIG. The following describes a staggered adjustment device 5 mounted on a linear reinforcing bar arrangement device 3 that arranges the ends of linear reinforcing bars B in a staggered pattern in the linear reinforcing bar direction (first direction) Y. As shown in Fig. 7, the staggered adjustment device 5 includes an apparatus support part 50, a reinforcing bar moving part (placing part) 51, a first stopper part 52, a second stopper part 53 (see Fig. 10), and a position adjustment part 54.

[0037] The device support part 50 is fixed to the device main body part 20 (see Figure 4) of the straight reinforcing bar arrangement device 3. The reinforcing bar moving part 51 is provided so as to be movable in the straight reinforcing bar direction Y relative to the device support part 50. The reinforcing bar moving part 51 is connected to an air cylinder 56. The air cylinder 56 normally presses the reinforcing bar moving part 51 against the other side Y2. A straight reinforcing bar B can be placed on the reinforcing bar moving part 51. The device support part 50 is provided with a switching valve 501 which switches between allowing the reinforcing bar moving part 51 to move in the straight reinforcing bar direction Y and stopping it from moving.

[0038] FIG. 11 is a perspective view showing a state in which the straight line B1 is positioned by the first stopper portion 52. As shown in FIG. 11, the first stopper portion 52 is fixed to the reinforcing bar moving portion 51 so as to protrude upward from the upper surface of the reinforcing bar moving portion 51. An end portion B1a of the straight reinforcing bar (first reinforcing bar) B1 that has been moved to one side Y1 by the reinforcing bar temporary placement portion 25 (see FIG. 4) abuts against the first stopper portion 52, and its movement is restricted to one side Y1. The first stopper portion 52 positions the end portion B1a of the straight reinforcing bar B1.

[0039] FIG. 12 is a perspective view showing a state in which the straight line B2 is positioned by the second stopper portion 53. As shown in FIG. As shown in Figures 9 and 10, the second stopper portion 53 is provided so as to be able to protrude and retract in the vertical direction from the top surface of the reinforcing bar moving portion 51. As shown in Figure 12, when the second stopper portion 53 protrudes upward, the end B2a of the straight reinforcing bar (second reinforcing bar) B2 that has been moved to one side Y1 by the reinforcing bar temporary placement portion 25 abuts against the second stopper portion 53, thereby restricting its movement to the one side Y1. The second stopper portion 53 positions the end B2a of the straight reinforcing bar B2. Note that when the straight reinforcing bar B1 is placed on the reinforcing bar moving portion 51, the second stopper portion 53 moves downward, allowing the straight reinforcing bar B1 to move above the second stopper portion 53 to the one side Y1.

[0040] The position adjustment unit 54 adjusts the position of the reinforcing bar moving unit 51 in the straight bar direction Y, and sets the positions of the first stopper unit 52 and the second stopper unit 53 in the straight bar direction Y.

[0041] The position adjustment unit 54 can move the rebar moving unit 51 to a predetermined position in the straight bar direction Y by loosening the handle 55. The position adjustment unit 54 can fix the rebar moving unit 51 to a predetermined position by tightening the handle 55.

[0042] FIG. 13 is a diagram showing the adjustment range of the zigzag adjustment device 5. As shown in FIG. As shown in Figure 13, the center of the rail 19 extending in the curved bar direction (second direction) X is defined as the rail core 19c. When the rebar moving part 51 of the staggered adjustment device 5 is moved farthest from the rail core 19c, the distance from the rail core 19c to the first stopper part 52 is defined as TTL. When the rebar moving part 51 of the staggered adjustment device 5 is moved closest to the rail core 19c, the distance from the rail core 19c to the first stopper part 52 is defined as STL. TTL and STL are the distances from the rail core 19c to the surface where the first stopper part 52 abuts against the straight bar B.

[0043] In the following description, as an example, STL=150 mm and TTL=550 mm. The movement amount of the reinforcing bar moving part 51 in the straight bar direction Y is 400 mm.

[0044] FIG. 14 is a diagram showing the stopper adjustment amount. As shown in Fig. 14, the distance from the end reinforcement AY, which is arranged at the position closest to the rail core 19c among the multiple curved reinforcements A, to the rail core 19c is defined as BL. BL is set to 450 mm.

[0045] The distance from the end reinforcing bar AY to the end B1a of the straight reinforcing bar B1 is defined as LP. LP is the same as the reinforcing bar projection dimension M2 in Figure 6. LP is set to 50 mm.

[0046] The position adjustment unit 54 uses BL, LP, and STL to adjust the rebar moving unit 51 in the straight bar direction Y in accordance with the stopper adjustment amount C calculated by the following formula (1).

[0047]

number

[0048] With the above settings, C = 450 - 50 - 150 = 250 mm.

[0049] The operation and behavior of the zigzag adjustment device 5 will now be described. As shown in FIG. 7, the switching lever of the switching valve 501 of the stagger adjustment device 5 is lowered. As shown in FIG. 8, the air cylinder 56 is contracted, causing the rebar moving part 51 to move to one side Y1. The handle 55 is loosened. This makes it possible to change the operating position limit of the rebar moving part 51 in the straight bar direction Y. As shown in FIG. 9, the position of the handle 55 is adjusted to match the calculated stopper adjustment amount C. The handle 55 is tightened. The lever of the switching valve 501 is raised. This causes the rebar moving part 51 to extend, moving to the position adjusted by the stopper adjustment amount C. The movement of the rebar moving part 51 is restricted by the stopper provided on the handle 55. This sets the positions of the first stopper part 52 and the second stopper part 53 in the straight bar direction Y.

[0050] When the second stopper 53 is moved downward, the end B1a of the straight reinforcing bar B1, which has been moved to the one side Y1 by the reinforcing bar temporary placement part 25, comes into contact with the first stopper 52 and is restricted from moving to the one side Y1. Thereafter, the reinforcing bar arrangement gripping device 27 scoops up the straight reinforcing bar B1 and arranges it in the groove 17a of the straight reinforcing bar receiving member 17 (first position).

[0051] Thereafter, the second stopper portion 53 protrudes upward. The end portion B2a of the straight reinforcing bar B2, which has been moved to one side Y1 by the reinforcing bar temporary placement portion 25, abuts against the second stopper portion 53, and its movement to one side Y1 is restricted. Thereafter, the reinforcing bar arrangement gripping device 27 scoops up the straight reinforcing bar B1 and arranges it in the groove portion 17a of the straight reinforcing bar receiving member 17 (second position). The second stopper portion 53 repeatedly moves downward and protrudes upward.

[0052] The staggered adjustment device 5 mounted on the curved reinforcement arrangement device 2 arranges the curved reinforcement A in a staggered pattern in the curved reinforcement direction X, and has the same configuration as the staggered adjustment device 5 mounted on the straight reinforcement arrangement device 3, so its explanation will be omitted.

[0053] In the reinforcement arrangement device 100 configured in this manner, the zigzag adjustment device 5 of the straight reinforcement arrangement device 3 positions the end B1a of the straight reinforcement B1 with the first stopper portion 52, thereby placing the straight reinforcement B1 in a first position. The end B2a of the straight reinforcement B2 is positioned with the second stopper portion 53, thereby placing the straight reinforcement B2 in a second position. The position adjustment portion 54 adjusts the positions of the first stopper portion 52 and the second stopper portion 53 in the straight reinforcement direction Y. Therefore, by operating the position adjustment portion 54, the positions of the end portions B1a and B2a of the straight reinforcement B1 and B2 can be easily adjusted.

[0054] In addition, by adjusting the position adjustment unit 54 according to the stopper adjustment amount C calculated by equation (1), the positions of the ends B1a, B2a of the curved muscles A1, A2 and the straight muscles B1, B2 can be easily adjusted.

[0055] The second stopper portion 53 is provided so as to be able to appear and disappear in the vertical direction on the rebar moving portion 51. When setting it to the first position, the second stopper portion 53 is simply moved downward, so that switching between the first position and the second position can be easily performed.

[0056] Furthermore, by using the reinforcement arrangement device 100, it is possible to expect improvements in the above-mentioned work, increased safety, and labor savings, as well as shortening the reinforcement arrangement work time itself.

[0057] In addition, by combining the reinforcement device 100 with a QR code (registered trademark) creation system that reads reinforcement positions, etc., there is the advantage that operation data can be easily set, which can also be used to improve the work efficiency and quality of the entire reinforcement work.

[0058] In addition, the adjustment amount is automatically calculated by the QR code (registered trademark) creation system when creating the operating data of the automatic reinforcing bar prefabricated reinforcement device, and can be inserted into the reinforcement drawing as the stopper adjustment amount C along with the QR code (registered trademark).

[0059] The shapes and combinations of the components shown in the above-described embodiment are merely examples, and various modifications can be made based on design requirements, etc., within the scope of the present invention.

[0060] For example, in the embodiment described above, a parameter based on the distance from the rail center line 19c is used when calculating the stopper adjustment amount C, but the reference line may be other than the rail center line 19c. [Explanation of symbols]

[0061] 1 Reinforcement frame 5. Staggered adjustment device (staggered adjustment mechanism) 18,19 Rail 52 First stopper part 53 Second stopper part 54 Position adjustment section 100 Reinforcement device A. Flexor muscle B Straight line B1 Straight bar (first rebar) B2 Straight bar (second rebar) A1a end B1a end B2a end C Stopper adjustment amount

Claims

1. A reinforcing bar stagger adjustment mechanism that arranges the ends of the first reinforcing bar and the second reinforcing bar in a staggered pattern in a first direction, a first stopper portion that positions an end of the first reinforcing bar so as to arrange the first reinforcing bar at a first position; A second stopper portion that positions an end of the second reinforcing bar so as to arrange the second reinforcing bar at a second position; and a position adjustment unit that adjusts the positions of the first stopper portion and the second stopper portion in the first direction.

2. the first stopper portion, the second stopper portion, and the position adjustment portion are mounted on a stagger adjustment device, the reinforcement device including the staggered adjustment device is capable of traveling in the second direction along a rail of a reinforcement frame having a rail extending in the second direction perpendicular to the first direction, The reinforcement stagger adjustment mechanism according to claim 1 , wherein the position adjustment unit adjusts the position adjustment unit in accordance with a stopper adjustment amount C calculated by the following formula (1): [Equation 1]

3. A placement portion on which the first reinforcing bar and the second reinforcing bar are placed is provided, the first stopper portion is fixed to the placement portion, The reinforcing bar stagger adjustment mechanism according to claim 1 or 2, wherein the second stopper portion is provided so as to be able to appear and disappear in the vertical direction in the placing portion.

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