KR20180047258A - Jig device for a steel reinforcement - Google Patents

Abstract

The present invention relates to a jig device and, more specifically, to a jig device for assembling reinforcing bars which reduces manufacturing costs. The jig device for assembling reinforcing bars comprises: a first jig (120) including an upper and a lower frame (122, 124) arranged in parallel with each other in a longitudinal direction and separated from each other, and a side frame (126) to connect the upper and the lower frame (122, 124); a first insertion hole (160) dented on the upper frame (122) to allow a reinforcing bar (20) to be inserted from a side; a second insertion hole (165) dented on the lower frame (124) to allow the reinforcing bar (20) to pass therethrough; a second jig (140) to be detachably accommodated into a space formed by the upper frame (122), the lower frame (124), and the side frame (126); a position determining means to determine an accommodation position of the second jig (140) in the first jig (120); and a reinforcing bar fixing means to fix the reinforcing bar (20) while the second jig (140) is accommodated in the first jig (120).

Description

[0001] JIG DEVICE FOR A STEEL REINFORCEMENT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig device, and more particularly, to a jig device for reinforcing bar assembly.

Generally, a large amount of reinforcing steel is used together with concrete when construction is carried out in civil engineering and construction sites such as construction of various buildings, bridges, harbors and the like. Prior to the concrete pouring, the reinforcing bars go through the laying work which is installed at regular intervals in the formwork. In order to shorten the construction period, reinforcing bars are preassembled from the outside of the formwork to form a certain shape, and the reinforcing net is inserted into the formwork.

However, in the related art, a plurality of workers are required to assemble the reinforcing bar 20, which requires a large labor cost. In addition, since it is necessary to perform work while adjusting the intervals and dimensions of the plurality of reinforcing bars 20 to be assembled, the work efficiency is lowered and the assembling time is not only long, but also it is difficult to assemble precisely and the quality is determined according to the skill of the worker. There was a serious problem of liver quality deviation, and there were many problems in safety of workers.

In order to solve such a conventional problem, jig assembling jig devices have been proposed. FIG. 1 is a schematic view showing a state of use of a conventional jig for reinforcing bar assembly. As shown in FIG. 1, a plurality of reinforcing bars 20 are disposed at regular intervals, and a first auxiliary jig 30 is provided at an upper portion and a second auxiliary jig 40 is installed at a lower portion.

The completed first and second auxiliary jigs 30 and 40 and the reinforcing bars 20 are lifted by a crane and are installed in a mold (not shown). This is a great help in confirming the exact number, spacing, thickness, etc. of the first and second auxiliary jigs 30 and 40 and the reinforcing bars 20, and has the effect of shortening the laying work.

However, since the conventional lifting jig has a length of about 4 m to 5 m, the frictional engagement force between the first and second jigs 30 and 40 and the fastening force between the reinforcing bars 20 are small, There were many cases. As a result, the construction quality deteriorated and reworked in the formwork to fix it.

Further, since the ends of each reinforcing bar 20 have to be threaded and then the coupler 15 has to be joined, it takes a lot of time for the work, is cumbersome, and has to be manually dependent on each work there was.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a jig for assembling reinforcing bars, which is low in manufacturing cost and easy to assemble.

A second object of the present invention is to provide a jig device for assembling a reinforcing bar capable of securely securing a frictional engagement force for each reinforcing bar.

In order to achieve the above object, the present invention provides a jig for assembling reinforcing bars, comprising: an upper frame 122, a lower frame 124, an upper frame 122, and a lower frame 124 parallel to each other in the longitudinal direction, And a side frame (126) connecting the first jig (124) and the second jig (120). A first insertion groove 160 formed in the upper frame 122 so that the reinforcing bar 20 can be inserted from the side and a second insertion groove 160 formed in the lower frame 124 so that the reinforcing bar 20 can pass therethrough. 165); A second jig 140 detachably received in the space formed by the upper frame 122, the lower frame 124, and the side frame 126; Positioning means for determining a receiving position of the second jig (140) in the first jig (120); And a reinforcing bar fixing means for fixing the reinforcing bar 20 in a state where the first jig 120 and the second jig 140 are accommodated in the first jig 120. [

The plurality of first insertion grooves 160 are formed while maintaining equal spacing, and the plurality of second insertion grooves 165 are formed while maintaining equal intervals. The first and second insertion grooves 160, 165 are coaxially positioned so that the middle region of the reinforcing bars 20 can be inserted.

Further, the positioning means includes a groove formed on at least one of an inner surface of the upper frame 122 and an inner surface of the lower frame 124; And protrusions protruding from the outer surface of the second jig 140 so as to be insertable therewith.

In addition, the groove has a first groove 150 formed on the inner surface of the upper frame 122 along the longitudinal direction thereof; And a second groove 155 formed in the inner surface of the lower frame 124 along the longitudinal direction.

Further, the projection includes: an upper projection (190) protruding to be insertable into the first groove (150); And a lower protrusion 195 protruding from the second groove 155 so as to be insertable therewith.

In addition, the reinforcing bar fixing means includes a through hole 170 penetrating through the second jig 140 in a direction perpendicular to the reinforcing bar 20; And a bolt (180) screwed into the through hole (170) and the end of which is in close contact with the reinforcing bar (20).

The through hole 170 and the bolt 180 correspond to the reinforcing bars 20, respectively.

Also, the second jig 140 is inserted and detachable along the longitudinal direction of the first jig 120.

The reinforcing bars 20 are fixed to a plurality of jig devices, and a plurality of jig devices and reinforcing bars 20 are fixed to the reinforcing bars 20, Is capable of being pulled by a crane (60).

Further, the crane 60 can pull both ends of the jig device.

According to an embodiment of the present invention, the manufacturing cost is low, and assembly is quick and easy. Therefore, in the field, it is possible to assemble precise rebar without a particularly skilled worker.

Further, since a reliable frictional engagement force can be ensured for each reinforcing bar, the stability of the reinforcing bar does not move even during lifting or during movement or rotation.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further understand the technical idea of the invention. And should not be construed as interpreted.
FIG. 1 is a schematic view showing a state of use of a conventional jig for reinforcing bar assembly,
FIG. 2 is a schematic view showing a state where a jig device according to an embodiment of the present invention is completed and lifted,
FIG. 3 is a partial perspective view of the lifting jig 100 in FIG. 2,
Fig. 4 is a partially exploded perspective view of the lifting jig 100 in Fig. 2,
FIG. 5 is an exploded perspective view of a jig assembly for reinforcing bars according to an embodiment of the present invention, FIG.
6 is a sectional view of the jig assembly for reinforcing bars shown in Fig.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings. While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and are herein described in detail.

It is noted that the terms "comprises" or "having" in this application are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Example  Configuration

3 is a partial perspective view of the lifting jig 100 in Fig. 2, Fig. 4 is a partial perspective view of the lifting jig 100 in Fig. 2, Fig. FIG. 5 is an exploded perspective view of a jig for reinforcing steel according to an embodiment of the present invention, and FIG. 6 is a sectional view of the jig for reinforcing bars shown in FIG.

2 to 6, the present invention largely consists of first and second jigs 120 and 140 and a bolt 180.

The first jig 120 is a member having a length of about 4 to 5 m, and a longitudinal cross section is a "C" shape. More specifically, an upper frame 122 is provided at an upper portion of the first jig 120, and a lower frame 124 is provided at a lower portion of the first jig 120 to be spaced apart from the upper frame 122 in parallel. One side end face of the upper frame 122 and the lower frame 124 is connected to the side frame 126. The first jig 120 may be made of a steel material or a hard synthetic resin material and may be manufactured through welding or extrusion.

The first insertion grooves 160 are formed in the upper frame 122 so as to be recessed from the lateral direction while being spaced along the longitudinal direction. The first insertion groove 160 is formed differently according to the diameter and the interval of the designed reinforcing bar 20, and can be manufactured quickly and inexpensively by drilling or milling.

The second insertion groove 165 is formed in the lower frame 124 so as to be recessed from the lateral direction while keeping a predetermined distance along the longitudinal direction. The second insertion groove 165 is formed differently according to the diameter and the interval of the designed reinforcing bars 20, and can be manufactured quickly and inexpensively by drilling or milling. Particularly, the first and second insertion grooves 160 and 165 are positioned on the coaxial axis of the reinforcing bar 20 so that the intermediate region of the reinforcing bar 20 can be simultaneously inserted and inserted.

The first groove 150 is recessed in the lower surface of the upper frame 122 (or the inner surface of the first jig). The second groove 155 is recessed in the upper surface of the lower frame 124 (or the inner surface of the first jig). The first and second grooves 150 and 155 may be formed by a separate cutting process or by a mold design in an extrusion process. The cross-sectional shape of the groove and the projection may be various shapes such as a polygonal shape such as a rectangle, a triangle, a rhombus, a curved shape such as a circle, an ellipse, or a combination of a polygonal shape and a curved shape.

The second jig 140 is a length member having a length of about 4 to 5 m and a longitudinal cross section is a square. An upper protrusion 190 which can be fastened to the first groove 150 is formed at the upper portion of the end surface of the second jig 140 and a lower protrusion 195 which can be fastened to the second groove 155 is formed at the lower portion. Respectively. The second jig 140 may be made of a steel material or a hard synthetic resin material and may be manufactured by welding or extrusion.

The through hole 170 is formed in a horizontal direction at the side of the second jig 140, and a female screw is formed inside. The through holes (170) are formed through the positions of the reinforcing bars (20).

The bolt 180 is screw-fastened to the through hole 170 and has a length enough to allow the end of the bolt 180 to come into close contact with the reinforcing bar 20 when fastened. The number of the bolts 180 is equal to the number of the reinforcing bars 20.

Example  action

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First, the operator places the first jig 120 horizontally and then inserts the reinforcing bars 20 into the first and second insertion grooves 160, 165. Then, the second jig 140 is pushed into the first jig 120 and assembled. The entry direction of the second jig 140 may enter along the longitudinal direction from the cross section, or may enter the side frame 126 from the side. When entering the side frame 126, a small impact is applied by a hammer or the like so that the groove and the protrusion can be fastened.

Then, the bolts 180 are fastened to the through holes 170 by using an electric screwdriver. The bolts 180 can be quickly fastened by using the electric screwdriver, and a strong fastening force and a uniform fastening force can be secured at the same time.

As shown in Fig. 5, the end of the bolt 180 is strongly adhered to the reinforcing bar 20. As shown in Fig. As a result, the reinforcing bar 20 secures the position between the first jig 120 and the bolt 180 with a strong frictional engagement force, and does not move even with an external impact.

The assembled reinforcing bars and the lifting jig are lifted by a crane 60 and put into a mold (not shown). After fixing the position in the mold, the bolts 180 are disassembled to lift the lifting jig 100 from the reinforcing bars Remove it. The separated lifting jig 100 is reused for assembling another reinforcing net.

Variation example

Although the first jig 120 has a groove formed therein and the second jig 140 has protrusions formed thereon, the first jig 120 is formed with a protrusion, and the second jig 140 The recesses may be formed in the recesses. The first jig 120 may have a groove and a protrusion, and the second jig 140 may have a corresponding protrusion and groove.

In the embodiment of the present invention, reinforcing bars are inserted into each of the insertion grooves. However, it is also possible to form the insertion grooves with a narrower interval, insert one reinforcing bar into each of two reinforcing bars, The spacing of the reinforcing bars can be adjusted. In this case, it is convenient not to prepare a lifting jig at intervals of different reinforcing bars.

Although the present invention has been described in connection with the preferred embodiments set forth above, it will be readily appreciated by those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention, It is obvious that all modifications are within the scope of the appended claims.

10: lifting jig,
15: Coupler,
20: reinforcing bars,
30: first auxiliary jig,
40: second auxiliary jig,
50: Cable,
60: Crane,
100: lifting jig,
120: first jig,
122: upper frame,
124: lower frame,
126: side frame,
140: second jig,
150: upper groove,
155: lower groove,
160: first insertion groove,
165: second insertion groove,
170: Through hole,
180: Bolts,
190: upper protrusion,
195: Lower protrusion,
300: second auxiliary jig,
400: first auxiliary jig,

Claims (10)

In a jig for reinforcing bars,
A first jig 120 constituted by longitudinally parallel upper and lower frames 122 and 124 and a side frame 126 connecting the upper and lower frames 122 and 124, ;
A first insertion groove 160 formed in the upper frame 122 so that the reinforcing bars 20 can be inserted from the side and a second insertion groove 160 formed in the lower frame 124 so that the reinforcing bars 20 can pass therethrough. A groove 165;
A second jig 140 detachably received in the space formed by the upper frame 122, the lower frame 124, and the side frame 126;
Positioning means for determining a receiving position of the second jig (140) in the first jig (120); And
And a reinforcing bar fixing means for fixing the reinforcing bar (20) while the second jig (140) is accommodated in the first jig (120). The method according to claim 1,
The plurality of first insertion grooves 160 are formed while being equally spaced,
The plurality of second insertion grooves 165 are formed while maintaining equal spacing,
And the first and second insertion grooves (160, 165) corresponding to each other are coaxially positioned so that an intermediate region of the reinforcing bars (20) can be inserted. The method according to claim 1,
Wherein the positioning means comprises:
A recess formed in at least one of an inner surface of the upper frame 122 and an inner surface of the lower frame 124; And
And a protrusion protruding from the outer surface of the second jig (140) so as to be insertable into the groove. The method of claim 3,
The groove
A first groove 150 formed on an inner surface of the upper frame 122 along a longitudinal direction thereof; And
And a second groove (155) formed on the inner surface of the lower frame (124) along the longitudinal direction. 5. The method of claim 4,
The projection
An upper protrusion 190 protruding from the first groove 150 so as to be inserted into the first groove 150; And
And a lower protrusion (195) protruding to be insertable into the second groove (155). The method according to claim 1,
The reinforcing bar fixing means comprises:
A through hole 170 penetrating through the second jig 140 in a direction perpendicular to the reinforcing bar 20; And
And a bolt (180) screwed into the through hole (170) and having an end which can be brought into close contact with the reinforcing bar (20). The method according to claim 6,
Wherein the through hole (170) and the bolt (180) are provided to correspond to the reinforcing bars (20), respectively. The method according to claim 1,
Wherein the second jig (140) is inserted along the longitudinal direction of the first jig (120) and is removable. A reinforcing bar for a reinforcing bar according to any one of claims 1 to 8,
The reinforcing bars (20) are fixed on the plurality of jig devices,
Wherein the plurality of jigs and the reinforcing bars (20) are pullable by a crane (60). 10. The method of claim 9,
And the crane (60) pulls both ends of the jig device.

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