JPH0240170Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a support fitting used when a combination of an upper end reinforcement and a lower end reinforcement or a combination of an upper end reinforcement and an unbonded PC steel wire is placed on a slab-type surface.

A flat slab structure without beams on the slab is
Unbonded, which is placed continuously within the slab and buried in concrete, is said to be advantageous in terms of on-site construction and the use of room space.
When installing the PC steel wire, it must be placed accurately in a substantially suspended curve.

However, in the past, this unbonded PC steel wire was hung from the upper end reinforcement on the slab formwork, or it was placed on the slab formwork via an arbitrary spacer each time, etc. without proper methods and metal fittings. This significantly reduced construction accuracy.

In addition, the upper end reinforcement and lower end reinforcement are each supported using their own spacers, and in this way they are unbonded.
If separate spacers are used for PC steel wire, upper end reinforcement, and lower end reinforcement, there are many types of parts, which increases production costs and may make construction complicated.

The purpose of this invention is to eliminate the disadvantages of the above conventional example,
To provide a support fitting for construction reinforcing bars, etc., which can accurately and rationally support a combination of upper end reinforcement and lower end reinforcement or combination of upper end reinforcement and unbonded PC steel wire with a small number of members, and improve workability. It is in.

However, according to the present invention, the purpose of the lever is to provide a support having a generally U-shaped catch that is movable up and down on a support leg that widens at the end, and a hairpin that spans between the supports of the support that are arranged in parallel. This is accomplished by combining two hook bolts with a nut and a hanging fitting that hooks one hook portion to the hairpin.

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

First, the support metal fitting 1 will be explained. Fig. 1 is a perspective view of the support metal fitting 1, and Fig. 2 is a partially cutaway front view of the same. A bolt support 4 is screwed onto a nut 3, and its lower end is projected to the center of a support leg 2.

A substantially U-shaped seat 5 is fixed upwardly to the upper end of the bolt support 4. Note that it is preferable that a plate nut 6 for positioning be screwed onto this bolt support 4.

Furthermore, a resin coating 7 is applied to the horizontal lower end 2b of the support leg 2, and a through hole 8 for nailing is formed.

Next, the hanging fitting 9 will be explained with reference to FIGS. 3 and 4.

Fig. 3 is a partially cutaway front view of the hanging fitting 9, and Fig. 4 is a perspective view showing the usage state.
0, 10' hook portions 10a, 10, respectively.
a′ facing each other outward, and connect the ends with the long nuts 11.
Connected with.

In this case, the plate nut 12 may be screwed onto the bolt portion 10b of the hook bolt 10, 10'.

In FIG. 1, reference numeral 13 indicates a hairpin that spans between the seats 5 of two supporting metal fittings 1 arranged in parallel.

Next, how to use it will be explained.

First, to explain the case of arranging the upper end reinforcement and the lower end reinforcement, as shown in Fig.
3, and the upper ends of the hairpins 13 support orthogonal portions of the lattice-shaped slab upper end reinforcements 14.

Furthermore, one hook portion 10a is hooked to the hairpins 13, and the hanging fitting 9 is attached to the hairpins 13.
3, and hook the slab lower end reinforcement 15 with the lower hook portion 10a'.

The height of the upper end reinforcement 14 is determined by adjusting the position of the catch seat 5 with respect to the support leg 2 of the support metal fitting 1,
In addition, the height of the lower end reinforcement 15 is determined by the height of the hanging metal fitting 9.
This is determined by adjusting the insertion depth of each hook bolt 10, 10' into the long nut 11, that is, by adjusting the overall length of the hanging fitting 9.

Also, the direction can be adjusted by using the catch plate 5 or the hook bolt 1.
This can be easily done by simply changing the direction of 0 and 10'.

Next, the case of arranging the upper end reinforcement 14 and the unbonded PC steel wire 16 will be described. As shown in FIG. It is supported by the upper end of the hairpins 13 that spans between 5 and 5.

The hanging metal fitting 9 is suspended from the hairpin 13 in the same way as in the case shown in FIG.
7, and the unbonded PC steel wire 16 is supported at the upper end of this hairpin 17.

The unbonded PC steel wire 16 is arranged in a substantially suspended curve, so-called wave shape, and may be supported by the hairpins 13 at the top.

The height of the upper end reinforcement 14 and the unbonded PC steel wire 16 is determined by the height of the support fitting 1 and the hanging fitting 9 as described above.
The total length of

As described above, the support metal fittings for construction reinforcing bars and the like of the present invention can be used to connect the top and bottom reinforcements of slabs or the top reinforcement and unbonded PC steel wires by just combining the three types of members: the bearing metal fittings, pintail bars, and hook bolts. These can be easily supported in combination with each other, and the height and direction can also be easily adjusted, improving construction accuracy.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the support fitting of the present invention, Fig. 2 is a front view with the same part cut away, Fig. 3 is a front view with a part cut away of the hanging fitting, Fig. 4 is a perspective view of the same as above, 5 and 6 are side views showing the present invention in use, respectively. 1...Supporting metal fitting, 2...Support leg, 2a...Top horizontal part, 3...Nut, 4...Bolt support, 5...Socket, 6
...Plate nut, 7...Resin coating, 8...Through hole,
9...Hanging bracket, 10,10'...Hook bolt, 1
0a, 10a'...Hook part, 10b...Bolt part, 1
1...Long nut, 12...Plate nut, 13, 17...Kanzashiri, 14...Upper end reinforcement, 15...Lower end reinforcement, 16...
Unbonded PC steel wire.

Claims (1)

[Scope of utility model registration request] A support metal fitting with a roughly U-shaped catch that can be moved up and down on a support leg that widens at the end, a hairpin that spans between the supports of the support metal fittings installed in parallel, and two hook bolts connected with a nut to connect one hook to the other. A supporting metal fitting for construction reinforcing bars, etc., characterized in that it is combined with a hanging metal fitting for hooking the hairpin to the hairpin.