JP3153896B2 - Concrete distribution 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 distribution apparatus for transporting ready-mixed concrete pumped from a concrete pump to a casting site by a transport pipe and a hose.

[0002]

2. Description of the Related Art The present inventors have developed an apparatus as shown in FIG. 5 as a lightweight and simple concrete distribution apparatus which is easy to transport and assemble by manpower, has a very small influence on pipe refilling and rebar, and has very little effect. did.

[0003] The above-mentioned conventional apparatus comprises a plurality of transport pipes P, which are connected by a swivel joint S so as to bend freely, supports the transport pipes P movably, and rotates wheels W rotatably with respect to the transport pipes P. Two-wheel caster A 'provided
And a distribution hose H connected to the distal end of the transport pipe P on the distal end side of the plurality of transport pipes P. 2 above
The wheel caster A ′ includes two wheels W, a wheel frame F that supports the wheels W, a column N that is integrally mounted upright from the center of the wheel frame F, and a column N. It comprises a rotating column L rotatably attached via a thrust bearing, and a pipe band B attached to the upper end of the rotating column L and fixing the transport pipe P. The wheel W has a drive motor M and a clutch K
Is provided.

[0004] However, in the above-mentioned conventional apparatus, the transport pipe P is connected by the swivel joint S.
There is a problem that the wheel casters A 'are large and large, and they are easily overturned. In addition, since the distance of the transport pipe P between the swivel joints S is constant, the traveling of the two-wheel casters A' is particularly difficult. There were also problems such as difficulty in moving.

Further, since it is desired that the wheel W and the driving motor M be connected via the clutch K, the wheel W is locked, particularly during assembly when the power is cut off, and a movement is required. The problem is that the clutch is large and heavy,
There were inconveniences such as the two-wheel caster A 'rotating without permission due to the pulsation at the time of concrete pumping.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a lightweight and compact concrete distribution device which is easy to handle. It is in.

[0007]

Means for Solving the Problems A concrete distribution device of the present invention comprises a plurality of rigid transport pipes, a two-wheel caster supporting both ends of each transport pipe, and a flexible hose connecting each transport pipe. It is characterized by being comprised from. Also,
The intermediate portion of the flexible hose is received by a sled. Further, the two-wheel caster has two wheels arranged coaxially, a wheel frame for supporting the wheels, a column integrally mounted upright from the center of the wheel frame, and a column. And a pipe band attached to the upper end of the rotating column to fix the transport pipe. Further, a vibration isolating rubber is interposed between the rotating column and the pipe band. Still further, the wheel is driven to rotate by a geared motor with a brake, and a freewheel hub is interposed between the wheels.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a rigid transport pipe, which is supported by two-wheel casters A near both ends thereof.

As shown in FIG. 2, the two-wheel caster A includes two wheels 2 arranged coaxially, a wheel frame 3 for supporting the wheels 2, and a central portion of the wheel frame 3. The support pipe 4 mounted upright and integrally, the rotary support 5 rotatably mounted on the support 4, and the transport pipe 1 mounted on the upper end of the rotary support 5.
, And a pipe band 6 for fixing. An anti-vibration rubber 7 is sandwiched between the rotary column 5 and the connection flanges 5a and 6a of the pipe band 6, as shown in FIG.

The wheel 4 has a wide ultra-low pressure tire,
The contact pressure to the rebar is reduced. The left and right wheels 2 are independently driven to rotate by a geared motor 8 with a brake. This geared motor with brake 8
Is steered by wire or wirelessly.

FIG. 3 shows a freewheel hub, in which a groove plate 9, a key member 10, and a wheel hub 11 mounted on a rotating shaft of the geared motor 8 with brake.
It is composed of A key groove is formed in the groove plate 9 and the key member 10 is fitted therein. The key member 1
The both ends of 0 are also fitted into the key grooves formed in the wheel hub 11. Therefore, the groove plate 9 and the wheel hub 1
1, that is, the motor 8 and the wheel W are detachably connected via the key member 10. The key member 10
The groove 10 can be separated from the wheel hub 11 by pulling the handle 10a in a virtual line state against the elastic force of the spring 12 and rotating the handle 10a by about 90 °.

Since the column 4 and the rotating column 5 can rotate freely with respect to each other, the transport pipe 1 can be oriented in a free direction with respect to the two-wheel caster A, or the direction of the transport pipe 1 can be adjusted. Irrespective of this, the two-wheel caster A can be moved in any direction.

To change the direction of the two-wheel caster A, the direction of the wheels 2 can be changed by rotating the left and right wheels 2 in opposite directions. In order to move the two-wheel caster A, the left and right wheels 2 are rotated in the same direction to move in the direction of the wheels 2. By combining the operations of the direction change and the movement of the two-wheel caster A as described above, the parallel movement and the turning operation of the transport pipe 1 can be performed.

In the above-mentioned parallel movement operation, the direction of the wheels 2 of the two-wheel caster A is changed little by little with the movement of the transport pipe 1 so as not to disturb the slab rebar. In the turning operation, one wheel 2 of the two-wheel caster A is used.
, And it is preferable that only the other wheel 2 is driven by the geared motor 7 with brake.

In FIG. 1, reference numeral 13 denotes a rubber hose, which is connected between the transport pipes 1. The intermediate portion of the rubber hose 13 is received by the sled 14 to reduce the weight burden on the wheel 2 and move smoothly on the reinforcing bar. FIG.
As shown in FIG.
Alternatively, the operating range may be increased.

As shown in FIG. 5, a pipe 17 and a tip hose 18 may be attached to the transport pipe 1 on the tip side via an elbow 15 and a swivel 16.

[0017]

【The invention's effect】

1) Since the transport pipes are connected by rubber hoses, the two-wheel casters are low, small and lightweight, and the operation of traveling movement is easy. 2) Since the transport pipe is supported via the vibration isolating rubber, the pulsation caused by the concrete pumping is absorbed, and the effect of the wheels on the reinforcing steel can be further reduced. 3) The wheels are driven to rotate by a geared motor with a brake, and a freewheel hub is interposed between them, so that the wheels can be brought into a free state during assembly and transportation of the device, which facilitates handling. .

[Brief description of the drawings]

FIG. 1 shows an embodiment of a concrete distribution device of the present invention, in which (A) is a side view and (B) is a plan view.

FIGS. 2A and 2B show an embodiment of a two-wheel caster, in which FIG. 2A is a front view partially in section, and FIG.

FIG. 3 is a detailed explanatory view of a wheel hub.

FIG. 4 is a view showing an embodiment when a rubber hose is made long.

FIG. 5 is a side view of a tip portion of the device.

FIG. 6 is an explanatory diagram of a conventional device.

FIG. 7 is a half sectional view of a conventional two-wheel caster.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transport pipe 2 Wheel 3 Wheel frame 4 Post 5 Rotating post 6 Pipe band 7 Anti-vibration rubber 8 Geared motor with brake 9 Groove plate 10 Key member 11 Wheel hub 12 Spring 13 Rubber hose 14 Sled 15 Elbow 16 Swivel 17 Pipe 18 Tip hose A Two-wheel casters

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04G 21/04

Claims (5)

(57) [Claims] 1. A concrete distribution system comprising a plurality of rigid transport pipes, two-wheel casters supporting both ends of each transport pipe, and a flexible hose connecting each transport pipe. apparatus. 2. The concrete distribution device according to claim 1, wherein an intermediate portion of the flexible hose is received by a sled. 3. The two-wheel caster according to claim 2, wherein the two-wheel casters are coaxially arranged.
Wheels and a wheel frame that supports these wheels,
A column that is integrally mounted upright from the center of the wheel frame, a rotation column that is rotatably mounted on the column, and a pipe band that is mounted on the upper end of the rotation column and fixes the transport pipe. The concrete distribution device according to claim 1, wherein the concrete distribution device comprises: 4. The concrete distribution device according to claim 1, wherein a rubber vibration isolator is interposed between said rotary column and said pipe band. 5. A concrete distribution apparatus according to claim 1, wherein said wheel is driven to rotate by a geared motor with a brake, and a freewheel hub is interposed between said wheels.