JPS635538B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in the pouring of concrete in basement floors by chute and the subsequent compaction of concrete.

In the case of underground floor pouring, the most common methods are pouring by pump trucks and pouring by chute.

Compared to pump casting, chute casting does not involve swinging the hose over the reinforcement arrangement, so it does not disturb the reinforcement arrangement, and has a large casting capacity (large-scale, large-volume casting, for example, foundations for civil engineering, etc.). It has its advantages, but on the other hand, there are restrictions on horizontal pulling of the chute, and the pouring area is small.
There are also problems such as an increase in the number of chute changes and an increase in the amount of work required by the workers.

In addition, in recent years, high-frequency vibrators have been widely used for the concrete compaction work that follows, and two people are required to operate the high-frequency vibrators: one person in the vibrating section and one person behind the vibrator.
The name is engaged. There are many problems that need to be improved, such as swinging something that weighs about 8 to 20 kg quite frequently and for a long time.
In addition, usually at least three machines are required for one pouring location, and a total of about six people are working on the work, which poses a problem in terms of labor saving.

That is, in chute pouring, as shown in FIG.
The diagonal chute 3 is placed on the back of the pedestal 8 and set at the tip of the tube to expand the casting area. A great deal of effort is required to pull it horizontally. In addition, work on the reinforcement arrangement occurs, which may cause the reinforcement arrangement to become disordered.

Regarding compaction work, the high-frequency vibrator 4, which is currently widely used, is used not only for the worker 5 who is actually doing the compaction work, but also for the worker 6 who is working behind him as a companion, as shown in Figure 2. There is definitely one. It is hard work that involves moving heavy vibrating parts (approximately 8 to 20 kg) all day long. Also, converter 7 weighs approximately 20Kg.
That's all, and this may take several moves.

In view of the above two points, the present invention aims to expand the area to be poured and reduce the amount of work required for the former type of chute pouring, and to reduce the number of workers by half and reduce the amount of manual movement required for the latter type of compaction work. The purpose of the concrete pouring device of the present invention is to eliminate the problem and to always position the vibrator in the pouring area, and to concentrate on compaction work by taking the above measures and to perform better concrete pouring. The gist of this is that a mounting base body is rotatably wrapped around the lower part of the chute body that is assembled to the chute body assembly frame and suspended, and that the base end of the hanging boom and the converter receiver are attached to the base end of the hanging boom and the converter receiver. The base ends of the mounting pedestal frame are each pivoted and the upper end of the diagonal chute is hung thereon, and a hanging wire is connected to the tip of the lifting boom and the converter mounting pedestal frame in the middle of the chute body. Lock it to the rotating band of the wrapping,
Furthermore, a balancer on which a vibrator is suspended is suspended from the tip of the suspension boom.

Hereinafter, this will be explained in detail based on embodiment figures.

FIG. 3 is an overall view of the apparatus of the present invention. In the figure, reference numeral 9 denotes a chute body assembly frame, and a hanging boom 10 is attached to the lower part of the chute body 2' assembled to this frame and suspended.
The base end of the converter C receiving pedestal frame 11 is pivotally fixed to the winding mounting base body, which will be described later, and the upper end of the diagonal chute 3' is hung thereon. , the hanging wires 12 and 13 which are fixed to the ends of the hanging boom 10 and the converter mounting pedestal frame 11 are fixed to a rotating band 14 wrapped around the middle of the chute main body 2', so these wires are not attached to the chute. It is pivotable relative to the main body 2'.

A vibrator 1 is installed at the tip of the hanging boom 10.
A balancer 15 that suspends a balancer 6 is suspended.

Incidentally, a pivotably rotatable folding portion 3'' may be provided at the tip of the diagonal chute 3'.

Details of the above-mentioned mounting base body will be explained with reference to FIGS. 4 and 5.

In the figure, 17 is the flange 1 at the lower end of the chute body 2'.
7' is a short cylindrical body that is joined and mounted, and is connected to the mounting base body, that is, the diagonal chute 3' receiving arm 2 via the radial bearing 18 and the thrust bearing 19.
0 is wrapped around it. This has arms 21, 21' extending symmetrically downward, and a steel pipe 22 is horizontally installed between the ends of the arms 21, 21'.

The diagonal chute 3' is attached to the steel pipe 22 with a groove 23 formed on its lower side.

In the figure, reference numeral 24 indicates a flexible concrete guide hose that is preferably attached to the tip of the short cylindrical body 17, and reference numeral 25 indicates a stop band for this.

The above-mentioned hanging boom 10 and converter receiving pedestal frame 11 will be explained in more detail with reference to FIG.

That is, their base ends are attached to a mounting shaft 26 inserted into the steel pipe 22.

Further, the details of the hanging wire 12 are as follows: between a pulley 27 fixed to the rotating band 14 and a pulley 28 fixed to the tip of the hanging boom 10, the wire first fixed to the frame of the pulley 28 is wound around the pulley 27; Pulley 2
8 and is wound up by a winch 29 provided at the base end of the hanging boom 10.
Therefore, by operating the winch 29, the lifting boom 1
0 is undulating, and its tip position can be freely changed in the radial direction.

In addition, the balancer 15 may be left to a separate suspension mechanism without being exposed at the tip of the suspension boom 10. Further, the chute main body 2' can be moved together with the converter, vibrator, etc. using a crane. The method of changing the working radius of the diagonal chute 3' mentioned above and the procedure for turning the diagonal chute 3' will be explained in more detail with reference to Figure 7, where the left figure shows the pouring operation and the right figure shows the turning operation. It is like that.

That is, in the example shown in Fig. A, a folding part 3'' which is pivotally connected to the tip of the chute 3' mentioned above and can be rotated freely is provided.
This is intended to extend the working radius, but at this time, if the tip of the chute 3' is suspended from the lifting boom 10 by the hanging tool 30, the turning work after rotational folding is extremely easy.

In the example shown in Figure B, the working radius of the chute 3' is adjusted by replacing the concave groove 23 with the steel pipe 22. As in Figure A, the tip of the chute 3' is suspended from the lifting boom 10 with the lifting tool 30. If it is attached, turning work after retraction will be easier.

In the example shown in Fig. C, a sliding folding part 3 is provided at the tip of the chute 3' to extend the working radius, and as in the previous two cases, the chute 3' is lifted from the lifting boom 10 with the lifting device 30. If the tip is suspended, turning after folding is extremely easy.

In the present invention constructed as described above, since the diagonal chute 2' is rotatable, it is possible to expand the casting area by casting the chute and reduce the amount of work required for swinging the diagonal chute, and the converter can be mounted on the chute main body 2. In addition, since the vibrator is suspended on a balancer and does not require any heavy operation, the number of people involved in compaction work can be halved, and the work of moving the vibrator etc. and compaction work can be reduced by half. The machine itself (vertical and lateral movement) can be performed with extremely light work, and by reducing the amount of work, it has the advantage of creating a work environment in which reliable and dense compaction work can be performed.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of conventional chute pouring, Figure 2 is a schematic diagram of conventional concrete compaction work, and Figure 3 is a schematic diagram of conventional concrete compaction work.
The figure is an overall view of the device of the present invention, Figures 4 and 5 are front and side views of the main components, Figure 6 is a detailed view of the lower part of the chute, and Figure 7 is a method for changing the working radius of an oblique chute and a method for turning work. This is a schematic diagram. Brief explanation of symbols, 10... Hanging boom, C...
...Converter, 15... Balancer, 16...
vibrator.

Claims (1)

[Claims] 1. A mounting base body is attached rotatably to the lower part of the chute body assembled to the chute body assembly frame and suspended, and the base end of the hanging boom is attached to the base end of the hanging boom,
The base ends of the pedestal frame for receiving the converter are each pivotally fixed, and the upper end of the diagonal chute is hung thereon, and on the other hand,
A hanging wire that is fixed to the tip of the hanging boom and the converter receiving pedestal frame is hooked to a rotating band wrapped around the middle of the chute body, and a balancer that suspends a vibrator is attached to the tip of the hanging boom. Concrete placement equipment characterized by being suspended.