JPH0134123B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an installation device for reinforcing bars for foamed concrete, which fixes a lath wire mesh of lightweight foamed concrete reinforcing bars to a setting rod and places them accurately within a formwork.

The manufacturing method for lightweight foamed concrete involves mixing silicic raw materials and calcareous raw materials or crushing them separately, mixing water in an appropriate ratio, adding metal powder such as aluminum, stirring, and pre-corrosion prevention. The treated reinforcing bars are poured into the formwork, and then
There is a method in which the foam is removed from the mold when it reaches a certain level of hardness after being foamed to a certain degree, and after being divided into desired shapes, it is steam-cured under high temperature and pressure in an autoclave.

When lath wire mesh is used as a reinforcing bar for foamed lightweight concrete manufactured in this manner, a method such as that seen in, for example, Japanese Utility Model Publication No. 49-375 has been conventionally used. That is, this well-known installation device for reinforcing bars for foamed concrete arranges a lath wire mesh along at least two setting rods, holds the lath wire mesh and the setting rods with clips, and attaches the lath wire mesh to the set rods. It is configured to lock.

However, with such conventional foam concrete reinforcing bar installation equipment, it is difficult to restrain the vertical movement of the lath wire mesh, so for example, a dummy formwork is used and the lath wire mesh is placed on the set rod in advance. If a dipping method is used to prevent rust while attached with clips, the lath wire mesh of the reinforcing bars may fall off due to the viscous resistance of the rust preventive solution. In particular, in order to restrict vertical movement, the clip can be made of a hard material with a strong biasing force, but this results in drawbacks such as making the attachment work difficult.

Therefore, an object of the present invention is to provide a hook portion at the lower end of the setting rod and to engage the hook portion with a hole of a mounting jig attached to the lath wire mesh, in order to eliminate such conventional drawbacks. It is an object of the present invention to provide an installation device for reinforcing bars for foamed concrete, which enables lath wire mesh to be placed in foamed lightweight concrete in an efficient and accurate manner.

An object of the present invention is to provide a mounting device for attaching a lath wire mesh, which is a reinforcing bar for foamed concrete, to a support beam provided in a formwork, which comprises: a set rod whose upper end is fixed to the support beam; A lower mounting jig for attaching the lath wire mesh to the lower end of the set bar, and an upper mounting jig for attaching the lath wire mesh to the set bar at a position above the lower mounting jig, the lower mounting jig In order to fix the tool and the upper mounting jig to the lath wire mesh, locking claws are provided that engage with at least two opposing cross portions of the cross portions formed by crossing the wire rods of the lath wire mesh. , a hole is provided in each of the lower mounting jig and the upper mounting jig, the upper mounting jig is provided with a hole that supports the set rod so as to be inserted therethrough, and a hook is provided at the lower end of the set rod;
The foamed concrete is characterized in that the lower mounting jig is provided with a non-circular locking hole that engages with the hook in order to removably fix the lower end of the set rod to the lower mounting jig. This can be achieved by a reinforcement reinforcement installation device.

Other objects, features and advantages of the present invention will become apparent from the detailed description taken in conjunction with the following drawings.

FIG. 1 schematically shows an installation device for reinforcing bars for foamed concrete according to the present invention, and as shown, a setting rod 1 is made of a round rod having a head 2 at the upper end and a hook 3 at the lower end. and is inserted into the support beam 4. This set rod 1 engages with an upper mounting jig 7 and a lower mounting jig 6 attached to the wire lath mesh 5 as reinforcing bars to fix the wire wire mesh 5.
The number of setting rods 1 for fixing the lath wire mesh 5 varies depending on the type of lath wire mesh 5, but is usually 2 to 6.
This book is used.

2 to 8 show several embodiments of the lower mounting jig 6 of the mounting device according to the invention.

In FIGS. 2 to 4, the lower mounting jig 6 has a cross shape consisting of a short axis 8 and a long axis 9,
Both ends of the long shaft 9 have a pair of locking claws 10 that form a clamping mechanism for attaching to the cross portion of the lath wire mesh 5. Locking claws 11 are provided that are inserted and locked from both ends. Furthermore, this lower mounting jig 6 includes
A non-circular, for example rectangular, locking hole (hereinafter simply referred to as "hole") 12 for engaging and connecting with the hook 3 at the lower end of the set rod 1 is provided on the opposite side of the long shaft 9 and the clamping mechanism. The hook 3 can be fitted and fixed.

Therefore, in such a lower mounting jig 6, the hook 3 at the lower end of the set rod 1 is fitted into the hole 12.
By rotating it by 90 degrees, the lower mounting jig 6 can be fixed to the lower end of the set rod 1 and its movement in the vertical direction can be restrained. Movement can be completely prevented, and the lateral movement of the lath wire mesh 5 can be completely prevented by the clamping mechanism consisting of the locking claws 10 on the long shaft 9.

5 to 7 show another embodiment of the lower mounting jig 6, in which a locking pawl 13 forming a clamping mechanism is shown.
The structure is similar to that shown in FIG. 2 except for the shape, and consists of a short axis 8 and a long axis 9 having a rectangular hole 12. In the lower mounting jig 6 of this embodiment, the locking pawl 13 forming the clamping mechanism has two hook-like legs, and can be installed by being inserted into the cross section of the lath wire mesh 5. There is. The locking claws 13 of this clamping mechanism are provided at both ends of the long shaft 9 and the short shaft 8, respectively, and the long shaft 9
A hole 12 for the hook 3 of the setting bar 1 is provided on the side opposite to the locking pawls of these clamping mechanisms.

Therefore, in this lower mounting jig 6 as well, the hook 3 at the lower end of the set rod 1 is fitted into the hole 12.
By rotating the lower mounting jig 6 by 90 degrees, the vertical movement of the lower mounting jig 6 can be suppressed.
Set the lath wire mesh 5 using the locking claw 13 of the rod 1.
In addition, it can be fixed so that it does not move not only in the vertical direction but also in the horizontal direction.

As shown in FIG. 8, the lower mounting jig 6 of yet another embodiment consists of one long shaft 14, which engages and locks the horizontally opposing cross portions of the lath wire mesh 5 from both ends. A rectangular hole 12 having two locking claws 15 and for connecting with the hook 3 of the setting bar 1.
is provided on the same side as the locking pawl 15. Therefore, the locking pawl 15 forming the clamping mechanism of the long axis 14 of the lower mounting jig 6 is locked to the cross section of the lath wire mesh 5, and the hook 3 of the setting bar 1 is fitted into the hole 12. By rotating the lath wire mesh 5 to the setting rod 1, the lath wire mesh 5 can be fixed so as not to move vertically and laterally.

To connect the lower mounting jig 6 configured as above and the setting rod 1, insert the hook 3 of the setting rod 1 into the hole 12 of the lower mounting jig 6 and rotate it 90 degrees as shown in It is done by letting. The lower mounting jig 6 to which the set rod 1 is connected is attached to the lath wire mesh 5.
By mounting the lath wire mesh 5 on the wire mesh 5, the vertical and lateral movement of the wire mesh 5 is restrained by the set rod 1, and therefore the upper mounting jig 7 serves as an auxiliary function to support the wire mesh 5 and prevents movement in the lateral direction. It can be prevented.

9 and 10 show an embodiment of the upper mounting jig 7, and as shown in the figure, the upper mounting jig 7 has a round hole 16 through which the round steel setting rod 1 can be inserted.
is provided on the long shaft 9, and at both ends of the long shaft 9 and the short shaft 8 forming the T-shape, a clamping mechanism or locking mechanism similar to that shown in FIGS. 2, 3, and 4 is provided. Nail 10,1
1 are provided respectively.

FIG. 11 is a diagram showing the connection between the setting rod 1 and the lath wire mesh 5 using the lower mounting jig 6 of FIGS. 2, 3, and 4 and the upper mounting jig 7 of FIGS. 9 and 10. The upper mounting jig 7 and the lower mounting jig 6 are installed by being inserted into the lath wire mesh 5 at appropriate positions, and the setting rod 1 is inserted into the hole 16 of the upper mounting jig 7. The hook 3 at the lower end is connected to the hole 12 of the lower mounting jig 6.

The pinching mechanisms or locking claws of the upper mounting jig 7 and the lower mounting jig 6 engage only with the two opposing cross sections of the lath wire mesh 5, and are only used as supporting claws for other opposing cross sections. It's good to just issue. Further, the shape of the hole 12 that engages with the hook 3 of the setting bar of the lower mounting jig 7 is preferably rectangular, but it goes without saying that other shapes can also be suitably used.

Place the setting rod 1 on the lath wire mesh 5 as described above,
The support beams 4 to which the lath wire mesh 5 is fixed are set in a dummy mold for one mold, and then subjected to a predetermined antirust treatment process and set in the main mold. Next, a slurry of a predetermined composition is poured into the mold and foamed.
After curing, when the setting rod 1 is rotated 90 degrees and pulled upward, the lath wire mesh 5 remains in the foamed lightweight concrete. This is cut into predetermined dimensions with a cutter and steam-cured under high temperature and pressure in an autoclave to obtain a product with lath wire gauze.

As described above, according to the present invention, by using the mounting jig that engages with the hook of the setting rod, foaming can be performed efficiently and accurately without moving the lath wire mesh vertically or laterally with respect to the setting rod. There are effects such as being able to obtain a product with reliable reinforcement in lightweight concrete.

In addition, since a locking claw is provided on the mounting jig, it can be easily attached to the lath wire mesh, and when inserting the setting bar into the mounting jig, it is necessary to insert the setting bar into the mounting jig from the side opposite to the side where the setting bar is attached. There is no need to support a mounting jig, and the work of mounting the lath wire mesh to the set rod can be performed very easily, which is an excellent effect.

[Brief explanation of drawings]

Fig. 1 is a schematic explanatory diagram of a reinforcing bar installation device for foamed concrete according to the present invention, Figs.
Figure 4 is a front view, side view, and plan view of the lower mounting jig, and Figures 5, 6, and 7 are front views, side views, and plan views of the lower mounting jig of another embodiment. , FIG. 8 is a side view of the lower mounting jig of yet another embodiment, and FIG.
Figure 10 is a front view and side view of the upper mounting jig,
FIG. 11 is a front view showing how the lath wire mesh is attached to the set rod. In the figure, 1: Set rod, 2:
Head, 3: Hook, 4: Support beam, 5: Lath wire mesh,
6: Lower mounting jig, 7: Upper mounting jig, 8: Short shaft, 9: Long shaft, 10, 11, 13, 15: Locking claw, 12: Hole (locking hole), 14: Shaft, 16 : Hole.

Claims (1)

[Claims] 1. Lath wire mesh 5 as reinforcement for foamed concrete
A mounting device for attaching a set rod 1 to a support beam 4 provided on a formwork, the set rod 1 having an upper end fixed to the support beam.
, a lower mounting jig 6 for attaching the lath wire mesh to the lower end of the setting bar, and an upper mounting jig 7 for attaching the lath wire mesh to the setting bar at a position above the lower mounting jig. , in order to fix the lower mounting jig and the upper mounting jig to the wire wire lath, engaging with at least two cross portions facing each other among cross portions formed by intersecting wire rods of the wire wire lath; latching claws 10, 11, 13, 15 are provided on each of the lower mounting jig and the upper mounting jig, and a hole 16 is provided on the upper mounting jig to support the setting rod so that it can be inserted therethrough; A hook 3 is provided at the lower end of the set rod, and a non-circular locking hole 12 that engages with the hook is provided in the lower mounting jig in order to removably fix the lower end of the set rod to the lower mounting jig. An installation device for reinforcing bars for foamed concrete, characterized by being installed on a jig.