JPS6237965Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a work communication device for a concrete pump in which a vehicle is equipped with a telescopic boom for transporting fresh concrete, and is particularly used for work communication between a pump operator and pipe tip personnel. This relates to communication devices that can be used.

Concrete pumps equipped with telescoping booms are used at construction sites such as buildings, and the ready-mixed concrete discharged from the pump cylinder is poured into the concrete placement area through transport pipes attached to each multi-stage boom. It's becoming like that.

By the way, as shown in FIG. 1, the conventional method of placing this type of concrete pump is to drive a vehicle 2 to the side of a building structure 1 such as a steel frame assembly, install the concrete pump, , a pump operator A is attached to the pump operation panel 3 on the vehicle 2, and a point for operating the transport hose 6 attached to the tip of the telescopic boom 5 is located above the structure installation location 1a. Personnel B is assigned.

The fresh concrete put into the hopper 8 of the concrete pump from the concrete mixer truck is sucked in and discharged by a pump cylinder mounted on the chassis of the vehicle 2, and then transferred to a transporter mounted along the telescopic boom 5. Through the pipe, hose 6
is discharged from the tip.

Furthermore, in general, a means of communication using a buzzer is adopted for work communication between operator A and tip staff B. Specifically, a buzzer 9 and its power input terminal are arranged near the operation panel 3. At the same time, the tip personnel B carries a buzzer switch 10, and a loose cord 11 pulled out from the buzzer 9 electrically connects the switch 10 to the buzzer 9.

Using such a communication device, tip staff B sends work signals such as "pump discharge" and "pump stop" to switch 1 at the appropriate time depending on the pouring situation at the pouring location 1a.
By making a call with the operation 0, necessary contact information is transmitted to operator A through a buzzer sound.

However, with such conventional communication devices, not only does it take a lot of effort to lay and remove the cord 11, but the wiring runs between steel frames, making it difficult for workers to pass through. There is a drawback that the cord 11 is easily dragged in the middle due to movement of work materials, etc., and is likely to break.

The present invention was made in order to eliminate the above-mentioned drawbacks, and the purpose of the present invention is to eliminate the need for special wiring operations and to prevent the wiring from coming into contact with other objects. The purpose of the present invention is to provide a working communication device for concrete pumps.

The present invention will be explained below based on an embodiment shown in FIGS. 2 and 3.

The communication device of the embodiment is a concrete pump 12
A buzzer 9 as one transmitter/receiver installed adjacent to the pump operation panel 3 installed on the vehicle 13, a buzzer switch 10 as the other transmitter/receiver carried by the pipe tip personnel, and the buzzer 9 and the switch 1.
A swing bracket 15 that constitutes the telescopic boom 14 and three booms 16, 17, and
18 each have a respective fixed cord 2 along them.
0A, 20B, 20C, and 20D are fixedly wired.

A socket 21 electrically connected to the buzzer 9 by fixed wiring is provided on the vehicle 13 near the base end of the bracket 15.
At the upper end of the terminal 6, there is provided a socket 22 which is electrically connected to the end of a fixed cord 20D.

Therefore, between each fixed code 20A to 20D,
The plug 26 at the tip of the movable cord is connected to the movable cords 23, 24, and 25, respectively, and is pulled out from the end _A1 of the fixed cord 20A.
is inserted into.

Next, the reinforcing hose 6, which is held by a hose guide 27 protruding from the tip of the upper boom 26 and communicates with the upper transport pipe 28, has both ends of its reinforcing coil wire 29 connected electrically by a movable cord. A plug 30 and a plug 31 are attached to the tip of each movable cord, and the inner plug 30 is inserted into the socket 22, and the outer plug 31 is inserted into the socket 22. switch 1
The cord 10a is inserted into a socket 32 attached to the tip of the cord 10a pulled out from the cord 10a.

Note that the upper transport pipe 28 is communicated with the discharge side of the pump cylinder in the vehicle 13 via a middle transport pipe, a lower transport pipe, and a base transport pipe, which are connected to each other by a pivot joint.

In the communication device of the embodiment configured in this way,
The buzzer 9 and the switch 10 are electrically connected by the above-mentioned circuit, and the pivoting portion of the bracket 15,
Since the bending joints of each boom 16, 17, and 18 are electrically connected with a movable cord, it is possible to freely move and operate the telescopic boom 14,
The hose 6 also has connector plugs 30 at both ends,
31, it can be easily attached to and detached from the hose guide 27.

Therefore, during concrete pouring work, the pipe tip staff can transmit the required work communication signal to the operator by pressing the switch 10 and sounding the buzzer 9, thereby eliminating the need for troublesome wiring work. .

In addition, since the wiring location is high in the air,
There is little risk of damage from contact with other objects.

In addition, in the configuration of the above-described embodiment, the direction of signal transmission is one-way communication from the tip staff to the operator, but if the buzzer 9 and switch 10 are replaced with transmitters and receivers, communication can be made in both directions. Communication is possible, and in addition to sound signals, voice communication signals, pump remote control signals, etc.
It is also possible to transmit various electrical medium signals.

As described above, the concrete pump work communication device according to the present invention provides communication between the transceivers near the pump control panel on the vehicle and the transceivers carried near the tip of the telescopic boom. , the fixed cord led along each telescopic boom is electrically connected to the signal circuit connected via the coil wire of the transportation hose, so the coil wire can also be used as a reinforcing wire for the transportation hose. There is no need to perform wiring every time during installation work, and there is almost no risk of wire breakage occurring in the middle of the wiring, which has the effect of increasing the operability and reliability of the work communication device during concrete pump placement work. There is.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of a conventional working communication device, FIG. 2 is a schematic diagram of a concrete pump working communication device showing an embodiment of the present invention, and FIG. 3 is the same as that shown in FIG. It is a signal circuit diagram. 3...Pump operation panel, 6...Transportation hose, 9...
...Buzzer as one transceiver, 10...Switch as the other transceiver, 12...Concrete pump, 13...Dolly, 14...Boom, 16, 17, 18...Boom, 20A-20
D...Fixed cord, 21, 22, 32...Connector socket, 23-25...Floating cord, 2
6, 30, 31... Connector plug, 29...
coil wire.

Claims (1)

[Scope of utility model registration request] One transmitter/receiver is installed near the pump operation panel on the vehicle, the other is operated by the pipe tip personnel working near the tip of the telescopic boom installed on the vehicle, and both of the above transmitters/receivers are connected. A working communication device for a concrete pump having a signal circuit for electrical connection, wherein the signal circuit is connected to a fixed cord guided along each boom of the telescoping boom, and a reinforcing transport hose attached to the tip of the telescoping boom. A working communication device for a concrete pump, characterized in that it is configured to electrically connect the above-mentioned transmitter/receiver through a coil wire.