JP3141151B2 - Rebar cross ties - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar crossing tie for connecting and fixing the crossing portions of crossing reinforcing bars such as slabs.

[0002]

2. Description of the Related Art As means for binding rebar intersections, various binding metal fittings have recently been proposed in place of the binding by wire lines. Of these, a large number of applications in which the fitting portions are back-to-back in a cross shape have been filed (Japanese Utility Model Application Laid-Open No. 57-5).
0513, Heikai 1-168719, Heikai Hei 4-205
25, JP-A-6-26149). However, in this back-to-back fitting, due to its form, it is necessary to separate (float) one rebar when attaching it to the rebar intersection (when one is fitted, the other that intersects with the other is obstructed). ), Which is troublesome, and affects workability.
It should be noted that most of the non-cross type ones have a complicated structure and are more troublesome to mount, and most of them are difficult to adopt because of unbalanced tension after binding.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and has a very simple structure, and can be mounted with one touch without moving a reinforcing bar intersection.
Moreover, the present invention provides a reinforcing bar cross tying tool that provides a strong tying condition.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a rectangular plate 1 in which the front center portion of the rectangular plate 1 is robbed to form a bifurcated shape, and the bifurcated tip portion is formed into a gutter-like shape. It is bent to form a substantially semicircular rebar fitting portion 2,2.
Then, in the width of the bifurcated space, the rear center portion is bent into a ridge to form a substantially U-shaped cross reinforcing bar fitting portion 3.
Further, on both rear sides of the rectangular plate 1 are provided split grooves 7 extending to the foot of the crossed reinforcing bar fitting portion 3, and the rear end wings 1a, 1a of the rectangular plate 1 bordered by the split grooves 7 are formed. This is a reinforcing bar tie that is bent into a mountain shape.

[0005] In the above structure, the cross-bar reinforcing portion 3
Is a reinforcing bar cross tying tool whose front edge is cut rearwardly.

Further, in each of the above constructions, a reinforcing bar provided with a non-shifting bead 4 at the center of one of the rebar fitting portions 2 and 2 in the bending direction and a concave striping bead 5 at the center of the other bending direction. It is a cross tying tool.

Further, in each of the above constructions, there is provided a reinforcing bar cross tying tool in which reinforcing ribs 6 are provided on the rectangular plate 1 straddling the crossing reinforcing bar fitting portion 3.

[0008]

[Usage and operation] As shown in FIG. 3, a bifurcated space in the center of the front half of the rectangular plate 1 is inserted so as to fall from above the intersecting reinforcing bars, and a substantially semicircular reinforcing bar is fitted at the tip. Attach the attachment parts 2 and 2 to the back reinforcing steel. Then, from the state, the rear half of the rectangular plate 1 is inserted into the crossed reinforcing bar fitting portion 3 at the center of the rear half.
While being fitted to the front side rebar, swing by approximately 90 ° in the horizontal direction and press. In this case, in a mode in which the front edge of the crossed reinforcing bar fitting portion 3 is cut in the rearward inclined shape 3a, smooth operation can be performed because the forked space is large.

As a result, the reinforcing bar intersection is firmly bound by the relative stress between the fitting portions 2 and 3. In addition, in the embodiment in which the convex streak preventing bead 4 and the concave streak preventing bead 5 are provided in the reinforcing bar fitting portion 2, the convex streak preventing bead 4 is provided between the different diameter nodes of the rebar. Since the concave bead stopper beads 5 are fitted to the different diameter nodes of the rebar, displacement after mounting can be effectively prevented.

Finally, as shown in FIG. 4, the rear end wings 1a, 1a of the rectangular plate 1 bent in a mountain shape are picked up and folded downward from both sides to complete the binding. As a result of this folding, even if the worker steps on a portion other than the intersection of the reinforcing bars during the work (for example, the work of floating the concrete on the liner during the slab construction), it does not come off.

The same operation is performed not only at the horizontal intersection but also at the vertical intersection and the inclined intersection, and it is also possible to replace the front, back, left and right for each intersection.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A substantially semicircular reinforcing bar is formed by stealing a central portion of a front half of a rectangular plate body 1 made of a metal material to form a forked shape, and bending a forked tip portion downwardly in a gutter shape. The fitting portions 2 and 2 are formed. In the width of the bifurcated space, the central portion in the rear half is bent and formed into a ridge to form a substantially U-shaped crossed reinforcing bar fitting portion 3, and the front edge of the crossed reinforcing bar fitting portion 3 is inclined backward. Cut 3a. Further, a convex streak preventing bead 4 is provided at one central portion in the bending direction of the reinforcing bar fitting portion 2, and a concave streak preventing bead 5 is provided at the other central portion in the bending direction. Further, reinforcing ribs 6 are laterally provided on the rectangular plate 1 that straddles the crossed reinforcing bar fitting portions 3, and the crossed reinforcing bar fitting portions 3 are provided on both rear sides of the reinforcing ribs 5 as shown in FIG.
1 (b), and as shown in FIG. 1 (b), the rear end wings 1 of the rectangular plate 1 bounded by the split groove 7
a, 1a is a reinforcing bar binding device formed by bending a mountain shape.

[0013]

As described above, the present invention provides a metal fitting capable of strongly connecting and binding an intersecting portion of intersecting reinforcing bars (different-diameter steel bars) with one touch without any skill. Another major advantage is that the structure is simple and mass production is possible at low cost. It can be used not only for horizontal intersections but also for vertical and inclined intersections,
Also, by attaching the front and back, left and right at each intersection, strong tension can be obtained as a whole.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a front perspective view of a rear end wing before bending, and FIG. 1B is a front side perspective view of a rear end wing after bending.

FIG. 2 is a rear perspective view.

FIG. 3 is a perspective view showing an attached state.

FIG. 4 is a perspective view showing a binding state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Square plate body 1a Rear end both wings 2 Approximately semi-circular reinforcing bar fitting portion 3 Substantially U-shaped cross reinforcing bar fitting portion 3a Backward inclined cut 4 Convex slip stopper bead 5 Concave slip stopper bead C 6 Reinforcing rib 7 Split groove

Claims (4)

(57) [Claims] 1. A substantially semicircular rebar fitting portion in which a front center portion of a rectangular plate body (1) is robbed to form a bifurcated shape and a bifurcated tip is bent downward in a gutter shape. (2),
In the width of the forked space, the rear half central portion is bent into a ridge to form a substantially U-shaped crossed reinforcing bar fitting portion (3), and the rectangular plate (1) is formed. On both rear sides of the rear surface, a split groove (7) reaching the foot of the crossed reinforcing bar fitting portion (3) is provided, and the rear end wings (1) of the rectangular plate body 1 bounded by the split groove 7 are provided.
This is a reinforcing bar tie obtained by bending a) and (1a) into a mountain shape. 2. A reinforcing bar cross tying tool according to claim 1, wherein a front edge of the crossing reinforcing bar fitting portion is cut backward (3a). 3. A bead stopper (4) is provided at the center in one bending direction of the rebar fitting portion (2), and a recess stopper bead (5) is provided at the center of the other bend direction. The reinforcing bar cross tying tool according to claim 1 or 2. 4. A reinforcing bar cross tie as claimed in claim 1, wherein a reinforcing rib (5) is provided laterally on the rectangular plate (1) straddling the cross reinforcing bar fitting portion (3).