JPS5853147Y2 - Rebar cage assembly jig - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a reinforcing bar cage assembly jig for assembling a reinforcing bar cage, which is the main structural material of a concrete segment.

Generally, a concrete segment has a structure in which a reinforcing bar cage, which is the main structural material, is buried in concrete.

Conventionally, in order to assemble the reinforcing bar cage, the main reinforcing bars 1 are cut by cutting straight reinforcing bars to the required length, and then bending them according to the curvature of the segments, as shown in the front view of FIG. A plurality of the reinforcing bars 1 are arranged in parallel using a suitable jig, and then, as shown in the front view of FIG.
After arranging the main reinforcing bars 1 and the distribution bars 2 so as to surround them at right angles to the main reinforcing bars 1, the intersection points of the main reinforcement bars 1 and the distribution bars 2 are tied with wire or fixed by welding, etc., and each corner of each of the distribution bars 2 is A reinforcing bar cage is assembled by extending reinforcing bars 3 across and fixing the parts.

This state is shown in a perspective view in FIG.

However, the above assembly method has the following drawbacks.

That is, since both the main reinforcing bars 1 and the distribution bars 2 have the required curvature and girder height, in order to assemble them, it is necessary to work in a three-dimensional state, which results in poor workability.

This invention was made in order to solve the above-mentioned problem, and the inner wire mesh and the outer wire mesh, which are curved in an arc shape and which constitute a reinforcing bar cage, are placed upright parallel to each other at a predetermined interval. This is a reinforcing bar cage assembly jig for assembling a reinforcing bar cage, which consists of two opposing bars that are vertically fixed at intervals on a surface plate along the same arc curve as the inner wire mesh. , a fixing member for the inner wire mesh, and a plurality of bars for the outer wire mesh consisting of two opposing bars fixed vertically at intervals along the same arcuate curve as the outer wire mesh on the surface plate. a fixing member; and a side positioning jig removably fixed to one end side of both the fixing member rows on the surface plate and having a notch for fitting the force distribution bars of both the wire meshes. It is characterized by its structure.

An embodiment of this invention will be described with reference to the drawings.

FIG. 4 is a perspective view of one embodiment of this invention.

In Fig. 4, 4 is a surface plate, and 5 is a plurality of inner wire meshes vertically fixed at intervals along the same arcuate curve as the inner wire mesh 9 constituting the reinforcing bar cage on the surface plate 4. It is a fixed member.

The fixing member 5 is composed of two bars facing each other with an interval approximately equal to the diameter of the reinforcing bar 3 of the inner wire mesh 9.

5' is an outer wire mesh 9' that constitutes a reinforcing cage on the surface plate 4.
A plurality of fixing members for outer wire mesh are fixed vertically at intervals along the same arcuate curve.

The fixing member 5' is composed of two bars facing each other with an interval substantially equal to the diameter of the reinforcing bars 3' of the outer wire mesh 9'.

Reference numeral 6 denotes a side positioning device for positioning the sides of both wire meshes 9, 9', which is detachably attached to one end of the row of shell fixing members 5° 5' on the surface plate 4 by means of a stopper 7. It is a jig.

The jig 6, as shown in a perspective view in FIG.
On the vertical surface of the L-shaped plate, a horizontal plate is provided with two notches 8 at its tips for fitting the inner wire mesh 9 and outer wire mesh 9' to the distribution bars 2.2' (see Fig. 6). is fixed in two board rows.

Therefore, the distribution bars 2 of both the wire meshes 9, 9' are placed in the notch 8,
2', the sides of both the wire meshes 9, 9' can be positioned.

In order to assemble a reinforcing bar cage using the reinforcing bar cage assembling jig configured as described above, as shown in a perspective view of the assembly mode in FIG.
The inner wire mesh 9 and the outer wire mesh 9', which are constructed by assembling the main reinforcing bars 1°1', the distribution bars 2, 2', and the reinforcing bars 3, 3' in a lattice shape, are fixed by the wire meshes 9, 9'. The distribution bars 2, 2' at one end are fitted into the notches 8 of the side positioning jig 6, and the reinforcing bars 3, 3' are inserted between the opposing bars of the fixing members 5, 5'. and stand upright on the surface plate 4.

and the main reinforcing bars 1, 1' around the two wire meshes 9, 9';
Girder spacing reinforcing bars 10 are welded to each orthogonal portion of the distribution bars 2, 2' and reinforcing bars 3, 3'.

In addition, when welding the girder spacing reinforcing bars between the upper ends of the wire meshes 9 and 9', if a spacer 11 as shown in FIG. 6 is inserted between the upper ends of the wire meshes 9 and 9', the girder Welding can be performed while maintaining the spacing firmly.

The reinforcing bar cage assembled in this manner is shown in a perspective view in FIG.

According to this invention, the inner and outer wire meshes constituting the reinforcing bar basket can be easily positioned, so that the practically useful effect that the reinforcing bar cage can be assembled in a short time is brought about.

[Brief explanation of the drawing]

Figures 1 and 2 are plan views of the main reinforcing bars and distribution bars that make up a conventional reinforcing bar cage, Figure 3 is a perspective view of a reinforcing bar assembled by the conventional method, and Figure 4 is a plan view of the reinforcing bars assembled by the conventional method. FIG. 5 is a perspective view of the reinforcing bar cage assembly jig, FIG. 5 is a needle view of the side positioning jig in the same jig, FIG. 6 is a perspective view showing how the reinforcing bar cage is assembled using the same jig, and FIG. It is a perspective view of the reinforcing bar basket assembled by the same jig. In the drawing, 1.1'... Main reinforcing bars, 2,2'
...Distribution bar, 3゜3'...Reinforcement bar, 4
......Surface plate, 5...Fixing member for inner wire mesh, 5'...Fixing member for outer wire mesh, 6...
・Side positioning jig, 7... Stopper, 8...
...Notch, 9...Inner wire mesh, 9'...
...Outer wire mesh, 10... Girder spacing reinforcing bars, 11.
·····spacer.

Claims (1)

[Scope of utility model registration request] A reinforcing bar cage assembly jig for standing upright parallel to each other an inner wire mesh and an outer wire mesh curved in an arc shape, which constitute a reinforcing bar cage, with a predetermined interval, and the same as the inner wire mesh is mounted on a surface plate. a fixing member for the inner wire mesh consisting of two opposing rods vertically fixed at intervals along the arcuate curve of the inner wire mesh; A fixing member for an outer wire mesh consisting of two opposing bars vertically fixed at intervals along the top;
and a side positioning jig removably attached to one end side of both fixing member rows on the surface plate and having a notch for fitting the distribution bars of both wire meshes. A rebar cage assembly jig featuring: