JPH0615080Y2 - Plate-shaped clip for fixing crossed rebar - Google Patents

Description

[Detailed description of the device]

[Industrial application] This invention is intended to prevent crossed reinforcing bars from moving from a predetermined position when embedding the reinforcing bars in a reinforced concrete building. The clip. (Prior Art) In conventional reinforced concrete buildings, various methods are used to prevent the rebars arranged at a predetermined position from moving when concrete is poured therein. According to the method (1) described below, the intersecting portion of the crossed reinforcing bars was fixed, and the reinforcing bars were embedded at a predetermined position in the concrete. A method of manually fixing the intersections of reinforcing bars with wires at the construction site. A method of continuously fixing the intersections of reinforcing bars by spot welding at the factory. A method of fixing the intersection of reinforcing bars by arc welding at the construction site. (Problems to be solved by the device) However, in the above-mentioned method, since the crossing portions of the reinforcing bars are manually bound and fixed one by one using a wire, the work efficiency is low and the construction cost is too high. There was a problem. Also, with the method of, since the work is performed in the factory, it is possible to mechanize and fix the intersection of the reinforcing bars with high work efficiency, but it is necessary to transport the fixed reinforcing bars from the factory to the construction site. Since it is inconvenient and requires large-scale mechanical equipment for installation at the construction site due to the heavy weight, there is a problem that the work is troublesome and the construction cost is increased. Furthermore, the method (1) has a problem that fixing the intersection of the reinforcing bars by arc welding or the like at the construction site requires more labor and construction cost than the work with the wire (1). Therefore, it has been desired to fix the intersection of the reinforcing bars by an easy and quick work at the construction site to reduce the construction cost. (Purpose of the invention) Therefore, the present invention was made by paying attention to the above-mentioned conventional problems. The intersection of the crossed rebars is fixed by one-touch operation, and the fixing work is performed at a high work efficiency so that it can be installed at one place. An object of the present invention is to provide a plate-like clip for fixing crossed reinforcing bars, which can reduce the construction cost required.

[Constitution of device]

(Means for Solving the Problems) The structure of the plate clip for fixing the crossed reinforcing bar according to the present invention for achieving the above-mentioned object is such that one side of one reinforcing bar of one of the reinforcing bars in the crossing state at the crossing site. The plate surface portion is placed in a state where the plate surface portion is in contact with the side surface, and the tip side is moved by the external force from the side surface of the one side of the one rebar to the side surface of the other side through the outer periphery opposite to the intersecting portion. A pair of plate-like side pieces that are bent and wound in the plate thickness direction in a state where they are in contact with each other,
A punched surface that continuously connects the base ends of the pair of plate-shaped side pieces and contacts the outer periphery of the other reinforcing bar in the intersecting state on the side opposite to the intersecting portion with the surface in the plate thickness direction. It is characterized in that it is configured to include a plate-like connecting piece having a contact portion formed in. (Example) Hereinafter, this invention is demonstrated based on drawing. <Embodiment 1> FIGS. 1 to 6 are views showing an embodiment of a plate clip for fixing crossed reinforcing bars according to the present invention and a construction using the same, and FIG. 1 is for fixing crossed reinforcing bars. FIG. 2 is a perspective view showing the structure of a plate-like clip, and FIG. 2 is a perspective view showing a state after construction of a plate-like clip for fixing crossed reinforcing bars. In FIG. 1, reference numeral 1 denotes a plate-shaped clip (hereinafter, referred to as “plate-shaped clip”) for fixing the crossed reinforcing bars for binding the reinforcing bars 10 and 11 which vertically intersect each other in the crossed reinforcing bars as shown in FIG. ). This plate-shaped clip 1 is placed in a state where the plate surface portion is in contact with one side of one of the lower rebars 11, that is, the tip end side thereof from the one side of the one rebar 11 due to an external force to the intersection part. A pair of plate-shaped side pieces 2 and 3 that are bent and wound in the plate thickness direction in a state where the plate surface portion is in contact with the side of the other side through the outer circumference on the side opposite to
And the base end of the pair of plate-shaped side pieces 2 and 3 are connected as a continuous surface and, in the reinforcing bar 10, 11 in the intersecting state, the other reinforcing bar 10 has an outer periphery on the side opposite to the intersecting portion in the plate thickness direction. The structure is provided with a plate-like connecting piece 4 having an abutting portion 7 formed by a punched surface that abuts on the surface. Explaining the pair of plate-like side pieces 2 and 3, the inclined sides 5 and 6 are formed inside each tip at the time of punching, and the lower reinforcing bar 11 receives the external force and the lateral side on one side thereof. When it is bent and wound in the plate thickness direction in a state where the plate surface portion is in contact with the side surface of the other side through the outer circumference on the side opposite to the intersecting portion, To prevent interference. The connecting piece 4 will be described. When the upper reinforcing bar 10 is sandwiched between the pair of plate-shaped side pieces 2 and 3 from the outer periphery on the side opposite to the intersecting portion, the connecting portion of the pair of plate-shaped side pieces 2 and 3 is described. A contact portion 7 formed of a punched surface having a substantially semi-circular shape that abuts on a surface in the plate thickness direction along the outer peripheral surface of the reinforcing bar 10 opposite to the intersecting portion on the inner peripheral side thereof. Therefore, when the pair of plate-shaped side pieces 2 and 3 are wound around the lower reinforcing bar 11, the upper reinforcing bar 10 is held by the abutting portion 7 formed by the punched surface. Therefore, the pair of plate-shaped side pieces 2 of the plate-shaped clip 1
3, the upper reinforcing bar 10 is sandwiched in an orthogonal state, and the lower reinforcing bar 11 is brought into contact with the pair of plate-shaped side pieces 2 and 3 while the plate surface portions are in contact with the side of the one side, A pair of plate-shaped side pieces 2 and 3 are formed on the lower rebar 11 in a state in which the plate surface portion is in contact with the lower rebar 11 from the side of the one side to the side of the other side through the outer periphery opposite to the intersecting portion. By bending in one direction and winding in the same direction, it is possible to fix the intersecting portion of the reinforcing bars 10 and 11. Next, a case will be described in which the above-mentioned plate-shaped clip 1 is used to continuously fix the intersecting portions of the reinforcing bars 10 and 11 intersecting in an orthogonal state. In order to continuously fix the intersecting portions of the plate-shaped clip 1, a workbench 21 shown in FIG. 3 attached to a self-propelled unmanned work vehicle is used. The workbench 21 will be described. The workbench 21 is provided with a slider 22 that can move up and down and is positioned to avoid interference with the upper reinforcing bar 10 when descending, and a lifting air cylinder 23 that moves the slider 22 up and down. Has
A rotatable hook 24 around which a pair of plate-shaped side pieces 2 and 3 of the plate-shaped clip 1 is wound, and the hook 24 is connected to a rod 25.
A pair of plate-shaped side pieces are provided with a winding air cylinder 26 that is rotated via a guide and a guide 28 that supplies a clip hoop 27 that continuously connects the plate-shaped clips 1 to a construction position on both sides of the workbench 21. It has a structure in which 2 and 3 are wound at the same time. The clip hoop 27 will be described. As shown in FIG. 6, a plate-shaped clip having upper and lower ends continuously connected to each other is formed by a press machine and left in a hoop shape. It can be used as a single plate-shaped clip 1 because it is wound into a coil and used as a coil, and a shallow groove 29 is formed in the connecting portion so that it can be easily separated by applying a slight external force. It has the following structure. In addition, as shown in FIG. 7, even when the plate-shaped clips 1 are stacked in the surface direction to form the bundle-shaped clips 30 and the sliders 31 are peeled off to separate the plate-shaped clips 1 one by one, It can be used for continuous feeding. Next, the construction of the plate-shaped clip 1 using the workbench 21 described above will be described with reference to FIGS. 4 and 5. First, when the unmanned work vehicle moves on the vertical reinforcing bar 10 and the sensor detects the horizontal reinforcing bar 11, the work table 21
The unmanned work vehicle is stopped in such a manner that the position shown in FIG. Then, by the operation of the lifting air cylinder 23,
The slider 22 of the workbench 21 descends to the state shown in FIG. Then, by operating the winding air cylinder 26, the hook 24 is rotated counterclockwise via the rod 25,
The pair of plate-shaped side pieces 2 and 3 of the plate-shaped clip 1 are wound around the transverse reinforcing bar 11. This state is the same as the construction state shown in FIG. 2, and the connecting portion of the clip hoop 27 is separated by applying a force to the reinforcing bar 1
Fixing of the intersection of 0 and 11 is completed. Then, by retracting the winding air cylinder 26, the hook 24 is rotated in the clockwise direction and the fourth
Return to the state shown in the figure. Further, the lifting air cylinder 23 is lifted to raise the slider 23 to the state shown in FIG. 3, then the clip hoop 27 is fed by one clip, and the unmanned work vehicle is moved to the next fixed position. Let Therefore, the pair of plate-shaped side pieces 2 of the plate-shaped clip 1
Since the intersection of the reinforcing bars 10 and 11 can be fixed only by a one-touch operation of winding 3 on, it is suitable for continuous work by unmanned work. <Embodiment 2> FIGS. 8 to 11 are views showing another embodiment of a plate clip for fixing crossed reinforcing bars according to the present invention. In this case, the reinforcing bars 10 and 11 intersecting vertically
Is fixed in a state of being sandwiched by a pair of plate-shaped side pieces 2 and 3, and the abutting portion 7 formed by a punched surface inside the plate-shaped connecting piece 4 is attached to the upper rebar 10. On the other hand, the pair of plate-shaped side pieces 2 and 3 are parallel to each other on the opposite sides of the lower reinforcing bars 11 while being obliquely abutted on the outer peripheral surface on the side opposite to the intersecting portion. Twist each side piece 2, 3 in the opposite direction so that they come into contact with each other, and the plate surface portion contacts from the opposite direction from the side on one side to the side on the other side through the outer periphery on the side opposite to the intersecting portion. In this state, the structure is such that it is bent in the plate thickness direction and wound. In addition, in the above-mentioned Examples 1 and 2, the case where the reinforcing bars 10 and 11 were intersected in an orthogonal state was described as an example. However, the pair of plate-shaped side pieces 2 and 3 are attached to the reinforcing bar 11 to be wound. If it is possible to arrange the reinforcing bars 10 and 11 intersecting each other in a non-orthogonal state if they can be arranged on one side, respectively, by twisting the pair of plate-shaped side pieces 2 and 3 at an appropriate angle, The present invention can be applied to the intersections of the reinforcing bars 10 and 11 forming a wide range of angles, and the reinforcing bars 10 and 11 are not limited to the orthogonal state. Further, in the above-described first embodiment, the case where the lifting and winding air cylinders 23 and 26 are used has been described, but a hydraulic drive type or the like may be used.

[Effect of device]

As described above, according to the fixing plate-like clip of the crossed reinforcing bar according to the present invention, one of the reinforcing bars in the intersecting state is placed on one side of one of the reinforcing bars and the tip side is moved by an external force. A pair of side pieces that are wound from one side of one rebar to the other side through the outer periphery of the side opposite to the intersecting portion, and the base ends of the pair of side pieces are connected and intersect. Among the rebars in the state, the pair of plate-shaped side pieces are provided on one rebar by having a connecting piece having an abutting portion that abuts the outer periphery of the other rebar opposite to the crossing portion. The one-touch operation of wrapping in the thickness direction can fix the intersecting part of the crossed reinforcing bars, so the fixing work can be performed with high work efficiency and the construction cost at one place compared to the conventional Can be significantly reduced , The plate side piece bent in the plate thickness direction is wound around one reinforcing bar, so that it is difficult to cause positional deviation, and the other reinforcing bar is a punched surface. Since the abutting part formed by the surface in the plate thickness direction formed in abutting state comes into contact, even if an attempt is made to shift the position, the corners will bite into the reinforcing bar and the shift will hardly occur. As a result, as a result, it is possible to obtain an excellent effect that the positional displacement of the intersecting reinforcing bars hardly occurs.

[Brief description of drawings]

FIG. 1 is a perspective view showing the structure of an embodiment of a plate clip for fixing crossed reinforcing bars according to the present invention, and FIG. 2 is a state after construction using the plate clip for fixing crossed reinforcing bars of FIG. 3 to 5 are explanatory views of respective work states showing construction work of a plate clip for fixing crossed reinforcing bars, and FIG. 6 is a front view showing a structure of plate clips connected in a hoop shape. FIG. 7 is a perspective view showing the structure of plate-like clips stacked in a bundle,
FIG. 8 is a front view showing a structure of another embodiment of a plate clip for fixing crossed reinforcing bars according to the present invention, FIG. 9 is a side view of FIG. 8, and FIG. 10 is a crossed reinforcing bar shown in FIG. 11 is a front view showing a state after construction using the fixing plate-shaped clip of FIG.
The figure is a top view of FIG. 1 ... Plate-shaped clip for fixing crossed reinforcing bars, 2, 3 ... Plate-shaped side piece, 4 ... Plate-shaped connecting piece, 7 ... Abutting part 10 ... Other reinforcing bar, 11 ... One reinforcing bar.

Claims (1)

[Scope of utility model registration request] 1. A reinforcing bar 1 in a crossing state at a crossing portion.
0, 11 is placed in a state in which the plate surface portion is in contact with one side of one rebar 11 and the tip side of the one rebar 11 is opposite to the intersection part from the one side of the one rebar 11 due to an external force. A pair of plate-shaped side pieces 2 and 3 which are bent and wound around the plate thickness direction in a state where the plate surface portion is in contact with the other side through the outer periphery, and the pair of plate-shaped side pieces 2 and 3. 3 is formed by a punched surface that continuously connects the base ends of 3 and is in contact with the outer periphery of the other reinforcing bar 10 of the other reinforcing bars 10 and 11 on the side opposite to the intersecting part in the plate thickness direction. Abutted part 7
A plate-like clip for fixing crossed rebars, comprising a plate-like connecting piece 4 having the following.