JPH0759438B2 - Refueling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention connects a discharge pipe of a pump driven by a pump drive motor to a flow meter, and connects two hoses to the discharge pipe of the flow meter. Connecting the refueling nozzles to the ends of the hose, providing a nozzle switch that operates when each refueling nozzle is removed, and providing two indicators for displaying the refueling amount of each refueling nozzle, and the pump drive motor and The present invention relates to an oil supply device in which a flow pulse transmitter of a flow meter, each nozzle switch, and each display meter are connected to a control device.

[Conventional device] A refueling device is known in which two hoses are connected to a discharge pipe provided with a flow meter so as to refuel from each hose. For example, Japanese Patent Publication No. 61-49200 by the present applicant. It is disclosed in the official gazette.

In this known refueling device, (i) when one of the refueling nozzles is removed from the state where both of the refueling nozzles are hooked together, the indicator is reset and the pump is driven to enable refueling.

(Ii) When the other fueling nozzle is removed, the pump is stopped and fueling becomes impossible.

(Iii) When the other refueling nozzle is applied, the pump is driven again to allow refueling, and the refueling amount is added.

(Iv) In (iii), even if one refueling nozzle is applied, the pump is not driven and refueling is not performed from the other refueling nozzle.

In other words, from the state that both refueling nozzles are hanging, there is a feature that refueling is done only from the refueling nozzle that was removed first,
It is valid.

By the way, when two refueling nozzles are provided separately on the front surface and the back surface, the left side surface and the right side surface of the refueling device, or the left side and the right side of the same surface, it is inconvenient to see the display on one indicator. . Therefore, it is preferable to provide an indicator near each fueling nozzle.

However, in this case, the other nozzle may be removed without noticing it, regardless of the fact that one of the fueling nozzles is removed and the fueling operation is performed. This is especially possible because the display does not move to zero before refueling even if the refueling nozzle is removed. Although the display is moving during refueling, if the other refueling nozzle is accidentally removed, refueling will stop ((ii) above), efficiency will decrease, and it will give an unnatural feeling to the customer, which is preferable. Absent. Also, while refueling with one refueling nozzle, press the other nozzle switch by hand, remove the refueling nozzle and insert it into the car's refueling port. However, there is a problem that it is possible to do so-called apparent refueling.

Japanese Unexamined Patent Publication No. 61-217400 discloses a technique in which two hoses are connected to the discharge pipe of one flowmeter and two indicators are provided. However, such a known technique has the above-mentioned problem because any indicator is displayed.

In addition, Japanese Utility Model Publication No. 53-34931 discloses a technique of turning off the electric light of a display meter during refueling and turning on the light during non-refueling.
However, with such a known technique, it is not possible to prevent oil supply or apparent oil supply by the other nozzle.

[Problem to be solved] Therefore, an object of the present invention is to provide an oil supply device capable of clearly indicating that one of the two oil supply nozzles is in the oil supply operation and preventing the apparent oil supply.

[Means for Solving the Problems] According to the present invention, a discharge pipe of a pump driven by a pump drive motor is connected to a flow meter, and two hoses are connected to the discharge pipe of the flow meter so that the tip of the hose is connected to the hose. A nozzle switch that is connected to each refueling nozzle and that operates when each refueling nozzle is removed is provided, and two indicators for displaying the refueling amount of each refueling nozzle are provided, and the flow pulse of the pump drive motor and the flow meter is provided. In a fueling device in which a transmitter, each nozzle switch, and each indicator are respectively connected to a control device, the control device receives a nozzle removal signal from one nozzle switch to zero the previous amount of fueling, and the other indicator Off,
Also, start the pump drive motor, count the pulses from the flow pulse generator, output the count value to the indicator, stop the pump drive motor from the nozzle application signal from one nozzle switch, and display the other When the meter is turned on and the nozzle removal signal from the other nozzle switch is received before the nozzle engagement signal from one nozzle switch is received, the pump drive motor is stopped, and the pump is received when the nozzle engagement signal from the other nozzle switch is received. It has the function of restarting the drive motor.

[Description of Action and Effect] Therefore, the signal from the flow rate pulse transmitter is input to the control device, and the amount of refueling is displayed on each indicator. However, when one refueling nozzle is refueling, the nozzle switch of the one refueling nozzle is turned on, so that the control device does not output to the indicator corresponding to the other refueling nozzle by the signal. Therefore, the other indicator is not displayed, and the worker can easily recognize that one refueling nozzle is in use and can prevent the apparent refueling.

Since the indicator corresponding to the refueling nozzle during refueling work displays the refueling amount, it is easy and convenient to see.

Therefore, in a type in which one flow meter can refuel from two refueling nozzles, it is possible to prevent malfunctions and frauds for workers, and to improve reliability for customers.

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

In FIG. 1 and FIG. 2, pumps P2, P4 and P13 driven by pump drive motors MO2, MO4 and MO13, respectively, are provided in the oil supply apparatus generally designated by reference numeral 1. Flowmeters M2, M4, and M13 are connected to the respective pumps via pipes L2, L4, and L13, and the flowmeters M2, M4 are supplied with hose H2, H4, respectively, to supply oil.
N2 and N4 are connected, and refueling nozzles N1 and N3 are connected to the flow meter M13 via hoses H1 and H3. Further, the fuel supply device 1 is provided with nozzle switches NSW1 to NSW4 that are turned on when the nozzles N1 to N4 are removed. In addition, the flow pulse generator R provided on the flow meters M2, M4 and M13
2, R4 and R13 are respectively connected to the control device 2, and the control device 2 has indicators I1 and I2 for displaying the amount of refueling of refueling nozzles N1 and N2 provided on one refueling area A side of the refueling device.
And refueling nozzles N3 and N4 provided on the other refueling area B side
Are connected to respective display meters I3 and I4 for displaying the oil supply amount, and pump drive motors MO2, MO4 and MO13, and nozzle switches NSW1 to NSW4 are connected thereto.

Here, since the refueling nozzles N2 and N4 are not directly related to the present invention, the refueling nozzles N1 and N3 will be described. In FIG. 3, the control device 2 controls the nozzle switches NSW1 and NSW3 and the flow rate pulse transmitter R13. Based on the signal, an operation signal is output to the pump drive motor MO13, and the display meters I1 and I3 are respectively lit to output a display signal indicating the oil supply amount of the oil supply nozzles N1 and N3. Refueling nozzle N1
Alternatively, while N3 is in use, the display output to the indicator I3 or I1 corresponding to the other refueling nozzle N3 or N1 is stopped.

Next, the operation will be described mainly with reference to FIG.

The control device 2 always turns on the nozzle switch NSW1 or NSW3.
It is checked whether N, that is, the nozzle N1 or N3 has been removed (steps S1, S11, S1 ...). When one of the nozzles N1 is removed, the previous count value is reset to zero,
Turn off indicator I3 (step S2), and pump drive motor MO
13, that is, the pump P13 is started (step S3).

Then, the refueling work is performed, and during the refueling work, a signal from the flow rate pulse transmitter R13 is input to the control device 2 (step S4), and the control device 2 displays the calculated refueling amount on the display I1 (step S5). ). This operation is repeated during the refueling work. For example, when refueling of the automobile is completed, there is no input to the flow rate pulse transmitter R13 (NO in step S4). Then, the controller 2 checks whether or not the nozzle N1 is hooked on the nozzle, that is, whether or not the nozzle switch NSW1 is turned on (step S6). If the nozzle N1 is hooked on the nozzle and the nozzle switch NSW1 is turned off (NO in step S6), the control device 2 determines that the refueling work is finished, stops the pump drive motor MO13, and lights the indicator I3. Then (step S10), the work is completed.

If the nozzle N1 is not hung up for some reason (YES in step S6), the control device 2 checks whether the other nozzle switch NSW3 is ON (step S7), and the nozzle N3 is hung up in the nozzle. If it is still worn (NO in step S7), the process returns to step S4. If the other nozzle N3 is removed from the nozzle hook, step S7
Since it is YES, stop the motor MO13. Therefore, double refueling is prevented. Then, when it is known that one of the nozzles is refueling, and the nozzle N3 is hooked on the other nozzle to turn off the nozzle switch NSW3 (NO in step S9),
The pump drive motor MO13 is turned on (step S3).

When refueling from the other nozzle N3 (step S11
YES), the same as in the case of the nozzle N1 described above, and the suffix S of each step S is shown by adding reference numeral 10, and the description thereof is omitted.

Therefore, for example, when the refueling nozzle N1 is in use, that is, when the nozzle switch NSW1 is ON, the display output to the indicator I3 is stopped (step S2), so that it can be clarified that the nozzle N3 is in use. It is possible to prevent the apparent refueling due to. Also, during refueling, steps S4, S6, S7, S4
... is executed. Therefore, if the oil supply nozzle N3 is mistakenly removed, the pump drive motor MO13 stops and the oil supply is interrupted (steps S7, S8), so that it is possible to prevent unauthorized oil supply.

[Effects of the Invention] As described above, according to the present invention, the following excellent effects are exhibited.

(I) Since only the indicator corresponding to the nozzle is displayed, there is no mistake and the display is easy to see.

(Ii) It is easy to understand that no oil can be supplied to workers and customers because there is no display (usually the previous display is displayed before reset and zero is displayed after reset).

(Iii) It is possible to prevent false fueling and give the customer a sense of security.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, FIG. 2 is a top view of FIG. 1, FIG. 3 is a control block diagram, and FIG. 4 is a control flow chart diagram. I1, I3 …… Indicator, MO13 …… Pump drive motor, N1, N3
…… Lubrication nozzle, P13 …… Pump, NSW1, NSW3 …… Nozzle switch, R13 …… Flow rate pulse transmitter, 1 …… Lubrication device, 2 …… Control device

Claims (1)

[Claims] 1. A discharge pipe of a pump driven by a pump drive motor is connected to a flow meter, two hoses are connected to the discharge pipe of the flow meter, and a fueling nozzle is connected to the tip of each hose. A nozzle switch that operates when the refueling nozzle is removed is provided, and two indicators for displaying the refueling amount of each refueling nozzle are provided. The pump drive motor, the flow rate pulse transmitter of the flowmeter, each nozzle switch, and each In the oil supply device in which the indicator and the control device are respectively connected, the controller receives the nozzle removal signal from one of the nozzle switches to zero the previous amount of oil supply, turns off the other indicator, and pumps the drive motor. To output the count value to the display meter by counting the pulses from the flow pulse generator, stop the pump drive motor in response to the nozzle application signal from one nozzle switch, and When the indicator is turned on and the nozzle removal signal from the other nozzle switch is received before the nozzle engagement signal from one nozzle switch is received, the pump drive motor is stopped and the nozzle engagement signal from the other nozzle switch is received. And a function of restarting a pump drive motor.