JPH089400B2 - Refueling device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a refueling device capable of preset refueling, which includes one or a plurality of weighing machines and a sales management machine, and particularly when preset refueling and normal refueling are performed. The present invention relates to an oil supply device capable of preventing an erroneous metering caused by a change in the oil supply mode during a period of time and performing an accurate oil supply regardless of the oil supply mode.

[Prior art]

Generally, this type of refueling equipment has a pump provided at one end of the pipe and a flow meter for measuring the amount of refueling, and the other end of the pipe connected through a hose to discharge the oil liquid to the fuel tank of the vehicle. Lubrication nozzles, and detection of lubrication work such as nozzle switch (for fixed metering machine) or lift switch or lift detection cam switch (for suspension lubricator) to detect the start and end of lubrication work by the lubrication nozzle With a weighing machine provided with means, while urging and outputting a refueling start permission signal to the weighing machine via a signal line with the weighing machine, the nozzle signal supplied from the weighing machine at the end of refueling work Based on the end of the refueling work based on the refueling work, a refueling permission signal output control means for deenergizing and outputting the refueling permission signal, and weighing supplied from the weighing machine permitted to start refueling by the refueling permission signal output control means Oil supply amount calculation means for calculating the oil supply amount of the weighing machine based on the number, preset value setting means for setting a desired preset value at the time of acceptance of the oil supply work by the weighing machine at the time of preset lubrication, and preset by the preset value setting means. When the value is set,
There is a sales management machine provided with preset refueling control means for instructing the refueling permission signal output control means to turn off the refueling permission signal when the refueling amount calculated by the refueling amount calculation means reaches a preset value. However, at the time of preset refueling, a fixed stop signal obtained as a deenergizing output of the refueling permission signal from the vending machine causes the pump and a pump motor attached to the pump, or a solenoid valve provided in the middle of the pipe as necessary. The operation of the liquid feeding means is stopped.

Then, at the time of normal refueling, both the start and stop of refueling are performed by opening and closing the refueling nozzle, and at the time of preset refueling, the refueling is started by opening the refueling nozzle, but stopping refueling is for the pump that drives the pump. This is performed by stopping the operation of the liquid feeding means, such as stopping the motor or closing the solenoid valve provided in the middle of the piping. The refueling nozzle is closed after the preset refueling is completed. For this reason, at the time of preset refueling, even if the liquid feeding means is stopped, the main valve of the refueling nozzle remains open, so the oil flow is stopped only by the automatic valve. Compared to the end of refueling (when the main valve is closed), the oil liquid in the hose flows into the fuel tank of the vehicle by the amount of expansion of the hose. This outflow is
It depends on the length of the hose, depending on the filling station and the filling time,
Usually, it is considered to be about 0.1 to 0.5. For example, when the previous refueling is the regular refueling and the current refueling is the normal refueling, a slight amount of error may occur each time the refueling mode is different.

[Problems to be solved by the invention]

This is shown in FIG. 7, and in the case of normal refueling both last time and this time as shown in FIG. 7 (a), it is the amount from the valve opening to the valve closing of the refueling nozzle. And the actual refueling amount match. On the other hand, as shown in Fig. 7 (b), when the previous time is preset lubrication and this time is normal lubrication, the oil liquid required to fill the hose by driving the pump is the valve opening operation of the fueling nozzle. Because it will be counted before,
The actual amount of oil supply from when the oil supply nozzle opens until it closes is reduced by this amount. On the other hand, as shown in FIG. 7C, when the preset refueling is performed both last time and this time, the oil liquid for filling the hose again flows out, so the preset value and the actual refueling amount match. Further, as shown in FIG. 7 (d), when the previous time is normal refueling and this time is preset refueling, even if the liquid feeding means is activated, the oil liquid in the hose has flowed out to exceed the preset value. You will be refueled.

The present invention has been made in view of the above-mentioned problems of the conventional technology, and whether the refueling mode performed this time was normal refueling,
If it is determined that the preset refueling was performed and it is determined that the preset refueling was performed, the oil equivalent to the oil spilled out of the hose should be stored in the hose in advance after the end of this refueling work or prior to the next refueling work. The metering signal corresponding to this filling amount is not output from the weighing machine side to the sales management machine side, so that accurate preset lubrication can be performed based on the preset control by the sales management machine. To provide a device.

[Means for solving problems]

In order to solve the above problems, the present invention is a refueling device comprising a weighing machine for refueling and a sales management machine connected to the weighing machine via a signal line, wherein the weighing machine is: Liquid feeding means for feeding the oil liquid, measuring means for measuring the amount of oil fed by the liquid feeding means and outputting a metering signal, and liquid fed from the liquid feeding means for measurement by the measuring means And a refueling work detecting means for outputting a nozzle signal for detecting the start and end of the refueling work based on attachment / detachment of the refueling nozzle to / from a predetermined storage position. In the machine, the nozzle signal output from the refueling work detection means and the metering signal output from the measuring means are supplied from the weighing machine through the signal line, and when the refueling work is accepted, the nozzle signal is output through the signal line. Sending the liquid to the weighing machine Driving, urging the nozzle signals stop, and outputs energizing the fueling permission signal for causing in accordance with the de-energized,
Refueling permission signal output control means for deactivating and outputting the refueling permission signal by deactivating the nozzle signal supplied from the weighing machine at the end of the refueling work, and the weighing machine for which refueling start is permitted by the refueling permission signal output control means Refueling amount calculation means for calculating the refueling amount of the weighing machine based on the weighing signal supplied from the presetting device, preset value setting means for setting a desired preset value when receiving refueling work by the weighing machine at the time of preset refueling, and the preset When the preset value is set by the value setting means, when the refueling amount calculated by the refueling amount calculation means reaches the preset value,
A preset lubrication control means for instructing the lubrication permission signal output control means to deactivate the lubrication permission signal in order to stop the driving of the liquid feeding means regardless of the energization of the nozzle signal is provided. The sales management machine is used to set preset values and stop the liquid feeding means.

In the above-described refueling device, the feature of the configuration adopted by the present invention is that the weighing machine is supplied with the output state of the nozzle signal output from the refueling work detection means and from the sales management machine via the signal line. The output state of the refueling permission signal is monitored to compare whether the nozzle signal is deenergized or the refueling permission signal is deactivated, and the refueling permission signal is deenergized first. If the current refueling is the preset refueling by the preset refueling control means of the sales management machine, the refueling mode determination means, and when the refueling mode determination means determines the preset refueling, the refueling work detection means A supplement for correcting and driving the liquid feeding means irrespective of the energization of the nozzle signal of the refueling work detection means based on only the energization output of the oil supply permission signal from the sales management machine or the deactivation of the nozzle signal. A drive means, during operation of the correction drive means is in the provision of the metering signal output stop means for stopping the output of the weighing signal to said sales management device.

[Action]

To perform refueling work, the sales management machine side accepts the start of refueling work using, for example, a card and the like, and the liquid supply means is driven and stopped from the refueling permission signal output control means of the sales management machine to the weighing machine side. A refueling permission signal is output to cause the liquid feeding means to be activated in response to the energization and deenergization of the nozzle signal, and the liquid feeding means is set in a startable state.

At this time, if the current refueling is a preset refueling, the preset value setting means on the sales management machine side accepts the refueling work and sets a desired preset value.

Next, on the weighing machine side, the refueling nozzle is removed from the storage position of the refueling operation detection means and inserted into the fuel tank. In response to this operation, the nozzle signal is output from the oil supply amount detecting means, the liquid feeding means is activated, and the oil liquid is discharged by opening the valve of the oil supply nozzle.

Then, the oil amount by the liquid feeding means is measured by the measuring means, and the measurement signal based on the measurement result is supplied to the sales management machine and calculated as the oil supply amount.

Here, in normal refueling, the refueling nozzle is closed,
By returning to the storage position of the refueling work detection means, a nozzle signal indicating the end of refueling work is output and supplied to the sales management machine via the signal line. As a result, the refueling permission signal output control means of the sales management machine outputs a stop signal obtained by deactivating the refueling permission signal to the weighing machine to stop the driving of the liquid feeding means and detect the refueling nozzle. If you go back to the means,
A refueling operation end signal is output, and a series of refueling operations ends.

On the other hand, at the time of preset refueling in which preset refueling is performed after setting the preset value by the preset value setting means, the preset refueling control means controls the nozzle when the refueling amount calculated by the refueling amount calculation means reaches the preset value. In order to stop the liquid feeding means irrespective of the signal activation, the refueling permission signal output control means is instructed to deenergize the refueling permission signal. Due to the deenergization of the refueling permission signal output from the refueling permission signal output control means, the liquid supply means is stopped, and the liquid supply is terminated even if the refueling nozzle remains open.

Now, on the side of the weighing machine, refueling mode determination means, correction driving means, and weighing signal output stopping means are provided.

The refueling determination means monitors the output state of the nozzle signal output from the refueling operation detection means and the output state of the refueling permission signal supplied from the sales management device through the signal line, and the nozzle signal is erased. It is determined whether the refueling is the preset refueling when the energization and the deenergization output of the refueling permission signal are earlier, and when the deenergization output of the refueling permission signal is earlier.

In this way, when the preset refueling is executed and the refueling mode determination means determines that the refueling work of this time is the preset refueling, the correction drive means deactivates the nozzle signal from the refueling work detection means or the sales management machine. Based on only the energizing output of the refueling permission signal from, the liquid feeding means is driven for a short time regardless of the energization of the nozzle signal of the refueling work detection means,
Fill the hose with oil solution in advance.

As described above, the metering signal output stopping means stops outputting the metering signal to the sales management machine while the correction driving means drives the liquid feeding means.

Therefore, even if there is a mode in which the refueling is finished while the refueling nozzle is opened like the preset refueling, or a mode in which the refueling nozzle is manually closed to refuel like the normal refueling, the next refueling work is performed. Sometimes, the metering signal is not output to the sales management machine while the hose is being filled with oil, so the receipt value and the display value on the display match even if the lubrication mode is different. Can be made.

〔Example〕

Hereinafter, the case where the oil supply device of the present invention is applied to a fixed oil supply device will be described as an example, and will be described in detail based on an embodiment shown in the drawings.

 1 to 4 show a first embodiment of the present invention.

FIG. 1 shows an overall configuration diagram of a refueling device used in this embodiment. In FIG. 1, reference numeral 1 denotes one or a plurality of weighing machines provided in a site of a gas station, and the weighing machine 1 has a main body 1A. The display unit 1B and the mast unit 1C. Reference numeral 2 denotes a pipe arranged in the main body 1A, and a pump 4 driven by a pump motor 3 and a flow meter 5 are provided in the middle of the pipe 2, and the flow meter 5 is proportional to the flow rate. A flow rate transmitter 6 that transmits a flow rate pulse is mounted. Also, the display unit 1B
A front face of the vehicle is provided with a refueling amount indicator 7 for cumulatively displaying the refueling amount, and a control circuit described later is built in the display unit 1B. Further, a suspending cord 8 connected to a hose pulling mechanism (not shown) for pulling a hose 9 described later is provided on one side of the upper portion of the mast portion 1C.

Reference numeral 9 is a hose whose base end side is connected to the pipe 2, and an intermediate portion of the hose 9 is suspended by a suspension string 8. Ten
Is a refueling nozzle provided on the tip side of the hose 9, and by opening the refueling nozzle 10, the oil liquid can be discharged to the fuel tank. 11 is the main body A of the weighing machine 1.
In the nozzle housing portion provided on the upper end side, the oil supply nozzle 10 is to be hung and removed from the nozzle housing portion 11.
A nozzle switch 12 is provided at 11 which opens and closes in conjunction with the engagement / disengagement of the fueling nozzle 10, and outputs a nozzle switch signal indicating that the fueling operation is being performed during the closing.

13 is a sales management machine usually called "POS", which is installed in the office of the gas station or in the outdoor machine box.
The sales management machine 13 is a card reader 14 for reading a card,
Numerical keypad 15 to set preset value for preset refueling, or to enter amount when selling products, product key 16 for specifying product name when supplying oil, air other than gasoline, tire replacement, etc., multiple weighing machines 1 It is composed of a weighing machine selection key 17 for designating this at a certain time, a printer 18 for issuing a receipt after the end of refueling or after selling a product, a display 19 and the like, and the weighing machine 1 is a refueling permission signal line 20.
A, a nozzle switch signal line 20B, a metering signal line 20C, and the like are connected via a signal line 20.

Here, the sales management machine 13 sends a refueling start permission signal to the weighing machine 1 by reading the card with the card reader 14 or operating the weighing machine selection key 17, and sends the refueling permission signal “L”.
From the output to the "H" state (energization), and thereafter outputs the refueling permission signal in the "H" state until the fixed amount stop signal or the refueling end confirmation signal described later is output. Functions and functions as a lubrication amount calculation means that calculates the lubrication amount based on the weighing signal input from the weighing machine that is permitted to start refueling, and preset value setting that presets the lubrication amount by operating the numeric keypad 15 during preset lubrication The function as a means and a preset refueling control means for outputting a fixed amount stop signal when the refueling amount reaches a predetermined preset value when the refueling amount reaches a predetermined preset value (falling off) to the “L” state of the refueling permission signal. The function and the output of the refueling permission signal are stopped based on the refueling work end signal obtained by the fall of the nozzle switch signal during normal refueling. And, in addition to the function of the fueling permission signal output signal for outputting a fueling completion confirmation signal with a its falling, and a sales summary function, a printer function, and the like. The configuration, functions, etc. of the sales management machine 13 are conventionally known.

Further, FIG. 2 shows a circuit configuration diagram of this embodiment.
Reference numeral 21 is a pump motor drive circuit, 22 is a discrimination circuit, 23 is a correction drive circuit, 24 is an oil supply amount control circuit having a metering signal output stop circuit 24A, and 25 is a transmission circuit. Here, the pump motor drive circuit 21 has a function of driving the pump motor 3 while the nozzle switch signal output from the nozzle switch 12 is in the “H” state on condition that the refueling permission signal is input during normal refueling. In the preset refueling, the function of driving the pump motor 3 between the refueling work start signal obtained by the rise of the nozzle switch signal and the fixed stop signal obtained by the fall of the refueling permission signal, and the correction drive circuit 23 It has a function of driving the pump motor 3 while the correction drive signal is output.

The determination circuit 22 monitors the refueling operation end signal obtained by the falling edge of the nozzle switch signal and the fixed amount stop signal or the refueling end confirmation signal obtained at the falling edge of the refueling permission signal, and if the fixed amount stop signal comes earlier. In this case, the refueling mode is determined to be the preset refueling this time, and otherwise the normal refueling.

The correction drive circuit 23 waits for the input of the refueling work end signal based on the determination signal from the determination circuit 22 when the determination circuit 22 determines that the preset refueling is performed, and then outputs the correction drive signal to the pump motor drive circuit 21 for a predetermined time. , Lubrication amount control circuit 24
Output to. Here, the predetermined time for outputting the correction drive signal is required to drive the pump motor 3 because the hose 9 is filled with the oil liquid (usually 0.1 to 0.5) flowing out from the hose 9 during preset refueling. Time, for example 0.5 ~
About 2 seconds is set.

The refueling amount control circuit 24 counts the flow rate pulses from the flow rate transmitter 6 and outputs a count signal to the indicator drive circuit (not shown) of the refueling amount indicator 7, and the refueling work starts when the nozzle switch signal rises. A function to reset the previous display value of the fuel amount indicator 7 to zero based on the signal, and a signal to convert the signal such as dividing the flow rate pulse as necessary and output it to the sales management machine 13 (usually "POS pulse") It is said that) is generated. On the other hand, the refueling control circuit 24 has a metering signal output stop circuit 24A, and the output stop circuit 2A
4A has a function of stopping the output of the measurement signal to the sales management machine 13 while the correction drive signal is input from the correction drive circuit 23 even if the measurement signal is generated based on the flow rate pulse.

Further, the transmission circuit 25 inputs the refueling permission signal from the sales management machine 13 to the weighing machine 1 side, outputs the nozzle switch signal from the nozzle switch 12 to the sales management machine 13 side, and further from the refueling amount control circuit 24. It has a function as an interface for outputting the measurement signal to the sales management machine 13 side.

The present embodiment is configured in this way, and its operation will be described with reference to FIGS. 3 and 4.

First, the normal refueling operation will be described with reference to FIG.

In this case, the customer's card to be refueled (in the case of a general customer, the card at the gas station) is inserted into the card reader 14 of the sales management machine 13, and when there are plural weighing machines 1, the weighing machine selection key 17 Press. As a result, the refueling permission signal is output from the sales management machine 13, and the pump motor drive circuit 21 is placed in a startable state.

Next, when the fueling nozzle 10 is removed from the nozzle housing portion 11 to refuel the fuel tank of the vehicle, the nozzle switch 12 is closed and the nozzle switch signal is output. As a result, the nozzle switch signal is input to the pump motor drive circuit 21, and at the rise of this, a motor drive signal is output from the drive circuit 21 to the pump motor 3 to start it.

Therefore, when the worker opens the refueling nozzle 10, the oil liquid in the underground tank is pipe 2, pump 4, flow meter 5, hose 9
It is discharged from the refueling nozzle 10 via. Then, the flow rate at this time is measured by the flow meter 5, a flow rate pulse is transmitted from the flow rate transmitter 6, and is input to the oil supply amount control circuit 24.
As a result, the refueling amount control circuit 24 counts the flow rate pulses, outputs a counting signal to the refueling amount indicator 7 to display the refueling amount, converts the flow rate pulse into a signal, and outputs the metering signal. It outputs to the sales management machine 13, and the sales management machine 13 calculates the metering signal as the amount of refueling.

In this state, when the refueling progresses and reaches a desired refueling amount, the refueling nozzle 10 is closed and the refueling nozzle 10 is hung on the nozzle housing portion 11. Therefore, the nozzle switch 12 is opened and the output of the nozzle switch signal is stopped, and this falling state is input to the pump motor drive circuit 21 and the sales management machine 13 as a refueling operation end signal. Thus, the output of the refueling permission signal from the sales management machine 13 to the pump motor drive circuit 21 stops, the output of the motor drive signal from the drive circuit 21 to the pump motor 3 also stops, and a series of refueling work ends. . The normal refueling operation described above is the same as in the prior art, and the hose 9 is filled with the oil liquid.

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

In this case, before inserting the card into the card reader 14 of the sales management machine 13 or after inserting the card, the ten-key 15 is operated to preset the predetermined amount or amount of refueling desired by the customer. Remember the value.

Next, as in the case of normal refueling, the refueling nozzle 10 is removed from the nozzle housing portion 11, this is inserted into the fuel tank, and the valve is opened. At this time, the lever of the oil supply nozzle 10 is hooked on the hook to keep the valve open state.

When refueling progresses and the refueling amount reaches a predetermined preset value, the output of the refueling permission signal from the sales management machine 13 is stopped. The falling state of the refueling permission signal becomes a fixed amount stop signal, and when the fixed amount stop signal is input to the pump motor drive circuit 21, the output of the motor drive signal from the drive circuit 21 is stopped. Therefore, when the pump motor 3 is stopped, the oil liquid is not discharged from the oil supply nozzle 10, and the preset oil supply is performed according to the predetermined preset value. At this time, since the oil supply nozzle 10 is still open, the oil liquid in the hose 9 will flow out excessively and be measured, but from the sales management machine 13, this oil flow will be flown out and measured. It goes without saying that the output of the refueling permission signal is stopped in advance in anticipation of the amount.

Further, when the worker visually recognizes that the display of the oil supply amount indicator 7 has stopped, the operator closes the oil supply nozzle 10 and hangs the valve on the nozzle housing portion 11, thereby completing a series of preset oil supply.

Therefore, in the present embodiment, the determination circuit 22 for determining the refueling mode
Is provided, and the quantitative stop signal due to the fall of the refueling permission signal or the refueling end confirmation signal is compared with the refueling work end signal due to the fall of the nozzle switch signal. When it is determined that the oil has been output earlier than that, it is determined that the preset oil supply has been performed, and a determination signal is output to the correction drive circuit 23. Thus, if the refueling mode of this time is preset refueling, the determination signal is input to the correction drive circuit 23, and the correction drive circuit 23 waits for the input of the refueling work end signal and waits for the correction drive signal for a predetermined time. To the pump motor drive circuit 21. As a result, from the drive circuit 21 to the pump motor 3
A motor drive signal is output to the motor 3, and the motor 3 is driven to fill the hose 9 with oil liquid and keep it in an expanded state.

On the other hand, the correction drive signal from the correction drive circuit 23 is input to the oil supply amount control circuit 24, and the metering signal output stop circuit 24A provided inside the oil supply amount control circuit 24 is in the sales management machine 13 while the correction drive signal is being input. The output of the weighing signal to is stopped. As a result, the oil liquid corresponding to the filling amount in the hose 9 is measured by the flow meter 5, and the flow rate pulse from the flow rate transmitter 6 is input to the oil supply amount control circuit 24. Is never output. If the configuration is such that the counting signal output to the refueling amount display 7 is stopped while the weighing signal output to the sales management machine 13 is stopped,
The numerical value of the receipt by the printer 18 and the display value of the refueling amount display 7 match.

As described above, according to this embodiment, when the refueling work of this time is the preset refueling work, the hose 9 can be filled with the oil liquid at the time of the next refueling work.
Regardless of the refueling mode, an accurate refueling operation can always be performed. In addition, the weighing signal while the hose 9 is being filled with the oil liquid in preparation for the next refueling work is indicated by the sales management machine 13
Since it is not input to, there is no fear that the receipt issued by the printer 18 will change from the preset value, and the distrust of the customer can be eliminated.

Next, FIGS. 5 and 6 show a second embodiment of the present invention, which is characterized in that the pump motor is corrected and driven before the next refueling operation is started. Especially.

That is, the same components as those in the first embodiment are designated by the same reference numerals, and the correction drive circuit 23 'used in this embodiment is used.
Is based on the refueling start permission signal obtained by the rising of the refueling permission signal at the time of the next refueling work when the discrimination circuit 22 determines that the current refueling mode is the preset refueling and the discrimination signal is input. It has been configured to output as.

Although the present embodiment is configured in this way, if the previous refueling was preset refueling, the determination signal is input to the correction drive circuit 23 '. Then, when the card is inserted into the card reader 14 of the sales management machine 13 in the next refueling operation, a refueling permission signal is output. The rising of the refueling permission signal is used as a refueling start permission signal, and this signal is input to the correction drive circuit 23 ', so that the drive circuit 23' outputs the correction drive signal to the pump motor drive circuit 21 and the refueling amount control circuit 24. Output to. As a result, as shown in FIG. 6, the pump motor drive circuit 21 outputs the motor drive signal to the pump motor 3 for a predetermined short time, and the metering signal output stop circuit.
24A stops the output of the weighing signal to the sales management machine 13 only during this period.

Thus, this embodiment is different from the first embodiment only in the output timing of the correction drive signal, and the effect is the same. In this embodiment, it is desirable that the output of the count signal to the oil supply amount display 7 is stopped only while the correction drive signal is being input to the oil supply amount control circuit 24.

In each of the embodiments of the present invention, the liquid feed means for starting and stopping the liquid feed is described as being constituted by the pump motor 3 and the pump 4, but it is constituted by the solenoid valve provided in the middle of the pipe 2. May be. Moreover, although the fixed type weighing machine is given as an example of the weighing machine 1, a suspended type weighing machine may be used in which a refueling nozzle is suspended from a high place of a gas station through a hose so as to be able to move up and down. In this case, the refueling operation detecting means may use a nozzle elevating switch, an elevating detecting cam switch or the like instead of the nozzle switch 12, and detect between the refueling position and the standby position. Further, as a control circuit, FIG.
The configuration is not limited to that shown in the figure, and may be configured by a microcomputer or the like.

〔The invention's effect〕

The refueling device according to the present invention is as described above in detail, and when preset refueling is performed, the hose is filled with the oil liquid in advance after the end of the refueling or at the next refueling work, and this filling is performed. Since the metering signal corresponding to the amount is not output to the sales management machine, the hose will always be filled with the oil liquid at the next refueling work, and the error caused by the different refueling mode will not occur. It is possible to prevent the discrepancy between the actual amount of refueling and the receipt from the printer, and to enhance the relationship of trust with the customer.

[Brief description of drawings]

1 to 4 relate to a first embodiment of the present invention, FIG. 1 is an overall configuration diagram of an oil supply device, FIG. 2 is a circuit configuration diagram, and FIG. 3 is an operation explanatory diagram during normal oil supply, FIG. 4 is an operation explanatory view at the time of preset refueling, and FIGS. 5 and 6 are second drawings of the present invention.
5 is a circuit configuration diagram of the present embodiment, FIG.
FIG. 7 is an explanatory diagram of operation during preset refueling, and FIG. 7 is an explanatory diagram showing problems that occur in each refueling mode in a conventional refueling device. 1 ... Weighing machine, 2 ... Piping, 3 ... Pump motor, 4
…… Pump, 5 …… Flowmeter, 6 …… Flow transmitter, 9 ……
Hose, 10 ... Refueling nozzle, 12 ... Nozzle switch, 13
...... Sales management machine, 20 …… Signal line, 21 …… Pump motor drive circuit, 22 …… Discrimination circuit, 23,23 ′ …… Correction drive circuit, 2
4 …… Refueling amount control circuit, 24A …… Weighing signal output stop circuit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-110696 (JP, A) JP-A-58-216594 (JP, A) JP-A-56-161997 (JP, A) JP-B 6- 37235 (JP, B2) Actual public Sho 60-156097 (JP, Y2)

Claims (1)

[Claims] 1. A measuring machine for refueling and a sales management machine connected to the measuring machine via a signal line, wherein the measuring machine includes a liquid feeding means for feeding an oil liquid, Measuring means for measuring the amount of oil fed by the liquid feeding means and outputting a metering signal, a fueling nozzle for discharging the oil liquid fed from the liquid feeding means and measured by the measuring means, and the refueling Refueling work detection means for outputting a nozzle signal for detecting start and end of refueling work based on attachment and detachment of the nozzle to and from a predetermined storage position, the sales management machine, the refueling work detection means from the weighing machine. A nozzle signal output from the measuring unit and a metering signal output from the measuring unit are supplied via the signal line, and when the refueling work is accepted, the nozzle is used to drive or stop the liquid feeding unit to the measuring machine via the signal line. Responds to signal energization and de-energization And a refueling permission signal output control means for urging and outputting a refueling permission signal for performing the refueling operation, and deenergizing and outputting the refueling permission signal by deactivating the nozzle signal supplied from the weighing machine at the end of the refueling operation, Refueling amount signal calculating means for calculating the amount of refueling of the weighing machine based on the weighing signal supplied from the weighing machine permitted to start refueling by the refueling permission signal output control means, and at the time of receiving the refueling work by the weighing machine at the time of preset refueling Preset value setting means for setting a desired preset value, and when the preset value is set by the preset value setting means, when the oil supply amount calculated by the oil supply amount calculation means reaches the preset value,
A preset lubrication control means for instructing the lubrication permission signal output control means to deactivate the lubrication permission signal in order to stop the driving of the liquid feeding means regardless of the energization of the nozzle signal is provided. In a refueling device configured to set a preset value and stop a liquid feeding means by a sales management machine, the metering machine outputs the nozzle signal output from the refueling work detection means and the sales management machine to the above The output state of the refueling permission signal supplied via the signal line is monitored, and whether the deactivation of the nozzle signal or the deactivation output of the refueling permission signal is earlier is compared, and the refueling permission is given. The refueling mode determining means for determining that the refueling is the preset refueling by the preset refueling control means of the sales management machine when the signal deenergizing output is earlier, and the refueling mode determining means. When the preset refueling is determined, the energization of the nozzle signal of the refueling work detection means or the energization of the nozzle signal of the refueling work detection means based only on the energization output of the refueling permission signal from the sales management machine Correction driving means for correcting and driving the liquid feeding means independently, and weighing signal output stopping means for stopping the output of the weighing signal to the sales management machine during the operation of the correction driving means. Refueling device.