JPH0718844Y2 - Radio control unit for concrete pump - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a radio control device for a concrete pump.

[Conventional technology]

In recent years, labor saving has progressed rapidly, and even at construction sites, it is no exception. For example, at a construction site where it is necessary to place concrete, a worker who operates a concrete pump uses a wireless control device as shown in, for example, Japanese Utility Model Publication No. 57-127751, and works away from the concrete pump car. The operation of the concrete pump is controlled by sending a control signal from the transmitter to the receiver of the concrete pump in an easy place.

FIG. 9 shows a transmitter 101 of this type of radio control device, and a plurality of boom operation switches 102 are provided on the upper surface of the transmitter 101.
A pump operation / stop switch 103 is provided.
The pump operating / stopping switch 103 is alternately opened and closed each time it is pressed, and the transmitter 105 controls the operation of the concrete pump 105 shown in FIG. 10 by the receiver 105A.
The activation signal or the stop signal is alternately sent to the.

[Problems to be solved by the invention] In a conventional radio control device for a concrete pump, as shown in FIG. It may be required to operate the pump 105. In such a case, the worker 106 often supports the transport pipe 107 of the concrete pump 105 with both hands 106A and 106A and supplies fresh concrete from the tip thereof to the pouring place.

During such work, at least one hand should be used to switch the pump operation / stop switch 103 of the transmitter 101.
You must use 06A.

However, the diameter of the transportation pipe 107 is generally 4 inches or 5 inches, and the surface thereof is hard and it is difficult to support the transportation pipe 107 with one hand. Therefore, the transportation pipe 107 is supported by both hands 106A and 106A. At this time, the transmitter 101 cannot be operated. Especially, the switch 103 for pump operation / stop is complicated.
It is inconvenient to operate the switch.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a concrete pump for a concrete pump, which allows an operator to operate a pump operation start / stop switch of a transmitter without using a hand. It is to provide a radio control device.

[Means for Solving the Problems]

To achieve the above object, the present invention provides a concrete comprising a transmitter that can be carried away from the concrete pump and a receiver that controls the operation of the concrete pump by a control signal sent from the transmitter. In a wireless remote control device for a pump, an output terminal of a pressure switch is connected to a pump operation / stop switch of the transmitter, and an organic supply pipe having a discharge port is connected to an input side of the pressure switch.

[Action]

In the present invention, when the air is blown into the outlet of the air supply pipe, the open / close state of the pressure switch is switched to the open or closed state. The signal of this pressure switch is sent to the circuit of the transmitter as an operation signal for operating the concrete pump or a stop signal for stopping the operation of the concrete pump.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

1 to 4 show a wireless remote control device for a concrete pump according to a first embodiment of the present invention.

In FIG. 4, reference numeral 1 denotes a transmitter that can be carried away from the concrete pump 3 mounted on the vehicle 2, and the concrete pump 3 is controlled by the control signal sent from the transmitter 1 through the antenna 1a. A receiver 4 for controlling the operation is installed. The transmitter 1 is used by suspending it from the shoulder of the work vehicle 16 with a suspension line or placing it in an appropriate place.

In FIGS. 1 and 2, on the upper surface of the transmitter 1, a plurality of boom operation switches 5 for operating a bendable boom 3a supporting a concrete transportation pipe connected to the concrete pump 3 and pump operation / stop Switch 6 is provided,
The pump operation / stop switch 6 is adapted to be alternately opened and closed each time it is pressed.

An electronic pressure switch 7 is provided in the transmitter 1, and two output terminals 7A, 7A of the electronic pressure switch 7 are provided.
B is connected to the two terminals 6A and 6B of the pump operating / stopping switch 6. In addition, the power supply (+) side terminal of the transmitter circuit 8
8A is connected to the other terminal 7C of the electronic pressure switch 7, and the power supply (-) side terminal 8B of the transmitter circuit 8 and the other terminal 8C are connected to both terminals 6A and 6B of the pump operation / stop switch 6. ing. A pull-up resistor 9 is placed between the terminal 6B of the pump operation / stop switch 6 and the power supply (+) side terminal 8A of the transmitter circuit 8.
Is provided.

Male one-touch coupler 10 of the electronic pressure switch 7
A female type one-touch coupler 12 provided at one end of the air supply pipe 11 is detachably connected to the. The air supply pipe 11 is wound in a coil shape, and an air outlet 13 is provided at the other end. The outlet 13 is suspended from a helmet 15 by a flexible tube 14.

Next, the operation of this embodiment will be described.

First, the pump operation / stop switch 6 of the transmitter 1 is held in the open state. Then, as shown in FIGS. 3 and 4, the worker 16 holds the air outlet 13 of the air supply pipe 11 while supporting the transportation pipe 17 with both hands 16A and 16A.

In such a state, the worker 16 operates the air outlet of the air supply pipe 11.
Each time you breathe into 13, the electronic pressure switch 7
The internal pressure rises and it closes, energizing. When this signal is sent to the transmitter circuit 8, the same operation as the operation of pressing the pump operating / stopping switch 6 occurs, and the signal for operating or stopping the concrete pump 3 by the operation of the transmitter circuit 8 is alternately passed through the antenna 1a. It is sent to the receiver 4.

When the air supply pipe 11 is not used, it is removed from the electronic pressure switch 7.

According to the above configuration, when the worker 16 attempts to operate or stop the concrete pump 3,
It is possible to perform the same operation as operating the pump operation / stop switch 6 of the transmitter 1 by blowing out or stopping the breath from the outlet 13 of the air supply pipe 11 without using the hands 16A and 16A. . Especially, the switch 6 for pump operation / stop is complicated.
When the switch is operated, the operation can be performed easily.

Therefore, the operator 16 can freely change the direction of the discharge port while supporting the concrete transportation pipe with both hands 16A and 16A vacant, depending on the situation of the concrete pouring site. Produce the effect of.

5 to 8 show a concrete pump radio control device according to a second embodiment of the present invention, and only parts different from the first embodiment will be described. The same components as those in the first embodiment are designated by the same reference numerals.

As shown in the figure, a plurality of toggle-type boom operation switches 22 for operating the concrete pump 3 are provided on the upper surface of the transmitter 21.
A toggle-type pump operation / stop switch 23 is provided.

The pump operating / stopping switch 23, unlike the pump operating / stopping switch 8 of the first embodiment, is held in an open state or a closed state.

An electronic pressure switch 24 is provided inside the transmitter 21, and two output terminals 24A,
24B is connected to the input terminals 25A, 25B of the ratchet relay 25, and the output terminals 25C, 24D of the ratchet relay 25 are connected to the two terminals 23A, 23B of the pump actuation / stop switch 23.

Also, the power supply (+) side terminal 26A of the transmitter circuit 26, the power supply (-)
The side terminals 26B are connected to the terminals 24A and 24C of the electronic pressure switch 7, respectively.

In addition, both terminals 23A, 23 of the pump operating / stopping switch 23
B is connected to two terminals 26C, 26D of the transmitter circuit 26, respectively.

Then, when the worker 16 blows into the air outlet 13 of the air supply pipe 11 with the pump operation / stop switch 23 held in the open state, the pressure in the electronic pressure switch 24 rises and closes. Then, the switching signal is sent to the transmitter circuit 26 by the action of the ratchet relay 25, the control signal is sent from the transmitter 21 to the receiver 4, and the concrete pump 3
Are alternately switched between the operating state and the stopped state.

According to the second embodiment, the same effect as the first embodiment can be obtained.

In the present embodiment, an electronic pressure switch 24 is connected in parallel to the pump operation / stop switch 23, and when the concrete pump 3 is operated, the pump operation / stop switch 23 is held in an open state for work. Person 16 has an air supply pipe 11
The air is blown into the air outlet 13 to send a signal to the transmitter circuit 26, but the invention is not limited to such an operation mode, and for example, an electronic pressure switch 24 is connected in series to a pump operation / stop switch 23. However, when the concrete pump 3 is operated, the pump operating / stopping switch 23 is kept closed, and the worker 16 blows into the outlet 13 of the air supply pipe 11 to send a signal to the transmitter circuit 26. it can.

Further, in the above embodiment, the air outlet 13 of the air supply pipe 11
Each time you breathe into the electronic pressure switch
The pressure inside 7,24 rises and energizes to the closed state, but when not breathing, close the state with the pressure inside the electronic pressure switch 7,24 lowered and energize it. A switching signal can be sent to the transmitter circuits 8, 26 by breathing on a reference.

[Effect of device]

As described above, according to the present invention, when an operator attempts to operate or stop a concrete pump, he or she can use his or her hands without blowing out air from the outlet of the air supply pipe. Stopping allows the same operation as operating the pump actuation / stop switch of the transmitter.
Therefore, there is a practical effect that the concrete pouring work can be smoothly performed, for example, the operator can freely support the concrete transport pipe with both free hands and change the direction of the outlet according to the situation of the concrete pouring site. .

[Brief description of drawings]

FIG. 1 is an explanatory view of a transmitter of a radio control device for a concrete pump according to a first embodiment of the present invention. FIG. 2 is a plan view of the transmitter of FIG. FIG. 3 is an explanatory view of a usage state of the air supply pipe of FIG. FIG. 4 is a perspective view showing the entire radio control device of the concrete pump. FIG. 5 is an explanatory view of a transmitter of a radio control device for a concrete pump according to a second embodiment of the present invention. FIG. 6 is a plan view of the transmitter. FIG. 7 is a front view of the transmitter. FIG. 8 is an electric circuit diagram of the transmitter. FIG. 9 is a perspective view of a transmitter of a conventional radio control device for a concrete pump. FIG. 10 is an explanatory view of a state in which a conventional radio control device for a concrete pump is used. [Explanation of symbols of main parts] 1 …… Transmitter 3 …… Concrete pump 4 …… Receiver 6 …… Pump start / stop switch 7 …… Electronic pressure switch 7A, 7B …… Output terminal 11 …… Air supply pipe 13 ... Blowout port.

Claims (1)

[Scope of utility model registration request] 1. A wireless remote control device for a concrete pump, comprising: a transmitter that is portable away from the concrete pump; and a receiver that controls the operation of the concrete pump by a control signal sent from the transmitter. ,
A radio controller for a concrete pump, wherein an output terminal of a pressure switch is connected to a pump operation / stop switch of the transmitter, and an air supply pipe having an outlet is connected to an input side of the pressure switch.