JP2555121Y2 - Concrete casting equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete placing apparatus for moving concrete on a slab arrangement before concrete placing to perform concrete injection.

[0002]

2. Description of the Related Art In the construction of buildings and the like, when concrete is cast on a wide floor, a reinforcing bar is provided on a slab, and concrete is cast on the slab and leveled to form a concrete surface. I have.

[0003] Conventionally, concrete has been cast mainly after human reinforcement, mainly depending on human power, and thereafter, a flat concrete surface has been formed by a leveling machine or manually to form a flat concrete surface. Relying on the installation work manually requires not only low work efficiency but also work on the arrangement of bars, which has a problem in terms of safety.

Accordingly, assuming that the concrete is cast by mechanical means, a base of a bent arm in which a plurality of arms are connected by a joint so that the concrete can be bent in a horizontal plane is supported on a base. A flexible concrete supply pipe is arranged along the arm, and the bent arm is bent so that the tip of the concrete supply pipe is located at a required position on the floor surface, and concrete is poured. There are things.

[0005]

However, according to the above-mentioned prior art, concrete can be poured into any desired place without being damaged by the reinforcement even on the floor where the reinforcement is provided. Since the arm is cantilevered, the support at the base of the arm is loaded with the entire weight of the bent arm, the concrete supply pipe attached to it, and the weight of the concrete existing in this pipe. In addition, the structure of the joint portion of the bent arm must be made very strong, and there is a problem that the whole device becomes large-sized and heavy.

In view of the above, the present invention has been made in view of the above, and has a structure that can be simplified, and a concrete placing device capable of placing concrete in a required range in a stable state even on a reinforcing bar arrangement. The purpose of this is to provide.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention provides a movable rail mounted on a reinforcing bar and a movable platform movable along the rail. And a hose holder rotatably mounted on the movable table, a telescopic castable pipe slidably supported by the hose holder, and a pipe connecting the castable pipe and the concrete supply source. A base serving as a center of rotation of the casting pipe, and the hose holder is provided with a casting pipe moving means for engaging with an outer cylinder of the casting pipe and sliding the same in the axial direction. Features.

[0008]

[Function] A rail is arranged on a reinforcing bar, a moving table is mounted on the rail, and a casting pipe is extended, and concrete is cast in a required area while the casting is completed in the area. The mobile platform is run on the above, and the casting is performed in the next area. At this time, the hose holder turns and follows the movable table, and the casting pipe extends and follows. When the placing of the concrete in the area over the entire length of the rail is completed, the rail is moved to the next area, and the placing operation is performed in the same manner, whereby the entire area on the reinforcing bars can be driven. When the hose is extended or shortened by itself, it can be dealt with by moving the outer cylinder of the casting pipe in the axial direction by the driving means for moving the casting pipe on the holder.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings.

The moving table 1 is movable on a rail 2 provided on a reinforcing bar assembled on a surface such as a floor surface.
In the illustrated embodiment, a case is shown in which the lower part is mounted over one rail 2 having a sled 3 which can slide by applying a force of a certain value or more on the reinforcing bars. ,
The front and rear axles 4 and 4 are rotatably supported by bearings 5 and 5, and the wheels 4 and 4 are driven by running motors 6 and 6.

A bearing tube 7 having a vertical axis is fixedly mounted at the center of the moving table 1. A shaft portion 9 projecting from the lower surface of a hose holder 8 is fitted in the bearing tube 7, and a bearing 10 is provided. 10 rotatably supported.

The hose holder 8 has side frames 12 erected at intervals so that the casting pipe 11 can be fitted as tightly as possible.
Two rollers 13, 13 for receiving the lower surface of the casting tube 11 are rotatably supported by bearings 14, 14 at a lower portion between the 12, and have a tapered peripheral surface at an upper portion between the side frames 12, 12. A pair of left and right rollers 15, 15 are rotatably supported by bearings 16, 16 as two sets of front and rear, and each set of rollers 15, 15 has an interval in the axial direction.
A pinion 1 as a casting pipe moving means is provided on the shaft between
7 and 17 are fixed, and the pinions 17 and 17 are driven to rotate by motors 18 and 18 for expanding and contracting the casting pipe, respectively.

The casting tube 11 is made of an outer cylinder 1 made of a hard material.
9 and an inner cylinder 20 which is slidably fitted to the outer cylinder 19 and expands / contracts, and has a linear fitting structure 21, and the fitting structure 21 is a receiving roller of the hose holder 8. 13 and rollers 15, 15.
In the longitudinal direction of the upper surface of the outer cylinder 19, a rack 22 is fixedly provided over substantially the entire length thereof.
7, 17 are engaged.

The distal end of the outer cylinder 19 is bent upright as shown in FIG.
Are connected, and a nozzle 25 is connected to the bent tube 24. The bending tube 24 is supported by support legs 27 having a sliding plate 26 at the lower end.

A bent portion 20a at the rear end of the inner cylinder 20 has
Pipe 27 Connected to Illustrated Concrete Supply Source
Are connected via a rotary joint 28, and the rotary joint 28 is supported by a column 30 of a base 29, and the entire casting pipe 11 can be turned around the rotary joint 28 as a center of rotation.

Next, the operation of the above embodiment will be described.

A rail 2 is installed on a reinforcing bar incorporated on the floor, and a wheel 4 of a movable base 1 is mounted near one end of the rail 2.
4 is engaged (the state shown by the solid line in FIG. 1). When the ready-mixed concrete is supplied from the concrete supply source, the ready-mixed concrete is blown out from the nozzle 27 through the straight structure portion 21 of the casting pipe 11 and the bent pipe 24 onto the reinforcing bar. If the nozzle 25 is turned around the rotary joint 24 (a circle shown by one point in FIG. 1) at the time of the casting, concrete can be cast in a predetermined range around the rotary joint 24.

When the extension motors 18 are driven, the pinions 17 are rotated, and the racks 22 meshing therewith are rotated.
The outer cylinder 19 slides on the hose holder 8 via the to extend the outer cylinder 19, and shifts the driving range to perform the driving, and moves from the area indicated by reference numerals (a) to (b) in FIG. Perform casting. On the other hand, in order to shift the driving range to the side, the driving motors 6, 6 are driven to rotate the wheels 4, 4, and the moving table 1 is driven on the rail 2, so that the reference numeral (c) in FIG. , (D), the casting pipe 11 turns around the base 29 to extend the casting range.

When the driving of the rail 2 over the entire area of the rail 2 is completed, the rail 2 is slid with a wire, a winch or the like on the reinforcing bars, and the operation shifts to the driving of the next new area.

In the above-mentioned driving, the telescopic motors 18, 18,
The nozzle 25 can be positioned at an arbitrary position by the combined drive of the traveling motors 6 and 6, and efficient driving can be performed by operation suited to the site.

As shown in FIG. 7, a rubber hose 31 may be connected to the tip end of the outer cylinder 19 of the casting pipe 11 so that ready-mixed concrete can be blown out from the tip of the rubber hose 31. Is optional. Casting pipe 11
The casting pipe moving means for extending and retracting the rack 22 is a rack 22,
Instead of using the pinion 17, the frictional force of the rollers 15, 15 may be used. Further, the nozzle 25 is not limited to the manual swivel, and may be swiveled by a driving unit.

[0022]

As described above, according to the present invention, a movable rail is provided on a reinforcing bar, a movable base is movably provided on the rail, and a hose is attached to the movable base so as to be pivotable. The holder is slidably supported on a telescopic casting tube,
Since the casting pipe is supported so as to be pivotable about the base, the weight of the entire apparatus including the weight of the concrete being supplied is dispersed and received by the moving base and the base, so that the strength of the configuration of each part is reduced. However, the object can be sufficiently achieved, and the configuration of the entire apparatus can be significantly reduced in weight. In addition, since the movable table is placed on the reinforcing bars via the rails, the reinforcing bars are not damaged by the load, and the concrete can be efficiently driven by these. Furthermore, since the holder on the movable table supporting the middle of the casting pipe is provided with means for sliding the outer casting pipe in the axial direction thereof, the casting pipe can be supported and expanded and contracted at the same time. The expansion and contraction mechanism of the tube becomes very simple, the number of parts is small, and the weight can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing an operation state of an embodiment of a concrete placing device according to the present invention.

FIG. 2 is a side view in a state where a casting pipe is reduced.

FIG. 3 is a side view of the same in an extended state.

FIG. 4 is an enlarged plan view of a portion A in FIG. 1;

FIG. 5 is a vertical sectional side view of the same.

FIG. 6 is a vertical sectional front view of the same.

FIG. 7 is a side view showing a modified example of the casting pipe.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Moving stand 2 Rail 4 Wheel 6 Running motor 8 Hose holder 11 Casting pipe 12 Side frame 13 Receiving roller 15 Roller 17 Pinion 18 Casting pipe expansion / contraction motor 19 Outer cylinder 20 Inner cylinder 21 Fitting structure part 22 Rack 23 Rotation Joint 25 Nozzle 28 Rotary joint 29 Base

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Minoru Ochiai 8-21-1, Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store (72) creator Kazuo Yamazaki 1293 Atomachi, Chiba-shi, Chiba (56) References JP-A-2-47422 (JP, A) JP-A-3-39566 (JP, A) JP-A-3-217558 (JP, A) −124557 (JP, U) Actually open 63-78652 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A movable rail mounted on a bar arrangement, a movable table movable along the rail, a hose holder rotatably mounted on the movable table, and a slide on the hose holder. A telescopically castable pipe movably supported,
A base that supports the pipe connecting the casting pipe and the concrete supply source and serves as a center of rotation of the casting pipe; and the hose holder engages with an outer cylinder of the casting pipe to move it in the axial direction. A concrete casting device, characterized by comprising a casting pipe moving means for sliding the concrete.