JPS594096Y2 - Insulating tie for concrete reinforcing bars - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reinforcing bar binding device for the purpose of insulation in the construction of concrete structures that use high voltage and high current, such as electrolytic furnaces.

Conventionally, metal ties have been commonly used for reinforcing bars in ordinary concrete structures, but in concrete structures that use high voltage and high current electricity such as electrolytic furnaces, After a long period of time, the walls may crack or collapse due to distortion and deformation of the structure, and as a result, dangerous situations such as electrical leakage may occur through the reinforcing bars built into the walls.

Therefore, in concrete structures that use electricity at such high voltages and currents, the present invention makes reinforcing bar ties non-conductive, and has a simple structure and operation to easily and reliably provide strength. To provide a reinforcing bar binding tool that maintains binding and prevents dangerous electrical leakage phenomena.

Incidentally, conventional reinforcing bar ties for concrete structures were made by bending metal rods into a U-shape to hold reinforcing bars that intersect vertically and horizontally. Both ends of the tie are open, and the elasticity of the tie is used to hold the reinforcing bars, so if an external force is applied to one side of the reinforcing bars,
This results in deformation and a decrease in binding strength.

In addition, in order to prevent such undesirable situations, in order to close the open end of the binding tool, a tightening lever or a stopper member is attached to the end to bind and restrain the intersecting reinforcing bars, but this requires complicated operation. However, it has disadvantages such as high production costs.

Furthermore, in the case of a type in which a plate-shaped metal piece is formed by press working or the like and reinforcing bars are inserted into it, a large number of pieces of the same size are required to match the thickness and diameter of the reinforcing bars to be used. Each of them had drawbacks such as not being able to be used as reinforcing bars of different diameters.

Below, the present invention will be explained based on the drawings.
As shown in the figure, there is a semi-cylindrical body 3 in which a cutout opening 2 is formed with both ends 1, 1 whose cross-sectional shape is slightly longer than the semi-circumferential side, and a semi-cylindrical body 3 that is perpendicular to the upper part of the semi-cylindrical body 3, and Partition walls 5.5 are erected with inclined surfaces 4, 4 facing each other, and the partition walls 5,
5 has wide flat slits 6.6 drilled in the sheath-like binding main body A and the partition wall 5.5 of the main body A as shown in FIGS. Inside the wide flat slit 6.6, sloped surfaces 7° 7... and vertical surfaces 8, 8... were formed in one direction only at equal intervals in parallel on one side. A tightening band 10 with serrated racks 9 is inserted therethrough.

One end of the tightening band 10 has an opening formed with a protruding locking protrusion 11 that allows the serrated rack 9 to enter and pass in only one direction, but prevents it from retreating in the opposite direction after passing. 12 is formed integrally with B.

Both A and 8 bodies are made of synthetic resin, and 8 bodies are particularly flexible and bendable.

Since the present invention is formed in this way, let us now discuss the case where this is applied to the binding of reinforcing bars that intersect vertically and horizontally.As shown in Figs. The eight tightening bands 10 are inserted with the serrated rack 9 side facing upward into the slits 6.6 bored in the 5th side of the partition wall 5, which stands perpendicular to the upper part of the semi-cylindrical body 3. .

Next, the reinforcing steel C
are fitted, and then a reinforcing bar is placed between the inclined surfaces 4, 4 of the partition walls 5, 5 formed to face each other.

At this time, a tightening band 10 is placed between the inclined surfaces 4, 4 as described above.
is passed through both slits 6.6, so the lower circumferential side of the reinforcing bar is in contact with the band 10.

Then, pull one side of the tightening band 10 and attach it to the opening 1.
2, the rack 9 retreats due to engagement between the locking protrusion piece 11 formed protruding within the opening 12 and the vertical surfaces 8, 8, . . . formed on the rack 9. The reinforcing bars C and D are securely locked together without any problems.

Note that the notch opening 2 of the A-shaped semicylindrical body 3 forming a sheath shape is as follows:
Since both ends thereof are formed to be slightly longer than the circumferential side of the semi-circumference, even if this semi-cylindrical shape 3 is fitted to the reinforcing bar C, it will not easily come off.

The present invention not only eliminates the need for troublesome operations by fitting reinforcing bars to one side of the main body that has been set by inserting a tightening band in advance, but also tightens the other reinforcing bars with the tightening band. Since it is made of a non-conductive synthetic resin material, there is no risk of electrical leakage, and even if it does occur, it can be limited to a small local area.

Furthermore, by coloring the present binding device, it has excellent advantages such as making it easy to check the attachment of the binding part, and has many practical effects.

[Brief explanation of the drawing]

FIG. 1 is a front perspective view of the binding device main body according to the present invention, FIG. 2 is a side perspective view of FIG. 1, and FIG. 3 is a plan view of the tightening band.
4 is a side view of FIG. 3, FIG. 5 is a view of the tightening band in a locked state, and FIG. 6 is a view of an embodiment of the present invention. 2...Notch opening, 3...Semi-cylindrical body,
5, 5... Partition wall, 6.6... Slit, 7, 7... Inclined surface, 8, 8... Vertical surface, 9... ... Rack, 10 ... Tightening band, 11 ... Locking protrusion piece, 12 ... Opening, A ... Linear body, B ... ...Tightening band body, C, D...Reinforcement bar.

Claims (1)

[Scope of utility model registration request] Cutout opening 2 at the bottom made of non-conductive synthetic resin etc.
A cylindrical body 3 having a substantially semicircular cross section is provided with partition walls 5, 5 projecting upwardly at both ends thereof, and a wide flat slit 6 is formed in the partition walls. A serrated rack 9 is carved on one side of the binding main body A, and the teeth of the rack form an inclined surface 7 on the distal end side of the band 10.
A tightening band 10 is provided with a vertical surface 8 on the rear end side, and an opening 12 with a locking protrusion 11 that engages with the rack 9 at the rear of the band 10. , the cylindrical body 3 of the binding device body A is locked to the reinforcing bar C, the reinforcing bar perpendicular to this is placed between the partition walls 5°5 on the back of the body, and is tied into a loop through the slit 6.6. band 10
An insulating binding tool for reinforcing bars, characterized in that the reinforcing bars are wrapped around and fixed.