JP3090178B2 - Suspended lubrication system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a refueling nozzle at the tip of a refueling hose suspended from a ceiling, and a hand switch box having a plurality of switches near the refueling nozzle for instructing selection of refueling operation. The present invention relates to a suspension lubrication system.

[0002]

2. Description of the Related Art In order to effectively use the site of a gas station,
On the ground, a liquid supply metering unit for supplying fuel oil and measuring the amount of refueling is installed on the ground, and a nozzle elevating device that winds up a refueling hose with a refueling nozzle connected to the tip is installed in the canopy. 2. Description of the Related Art A so-called suspension type refueling device in which a hand switch box having a plurality of switches for instructing operations is attached near a refueling nozzle is used.
Conventionally, such a suspension type lubricating apparatus has a large distance between the lubricating nozzle and the control means compared to the ground-mounted type, so it is difficult to incorporate an oil type discriminating function, an automatic full tank lubrication, and the like. It had only a normal refueling function that relied on manual labor, or at most a preset refueling function.

[0003]

However, in order to save labor and improve the safety of the refueling operation, the suspension type refueling device also has an oil type discriminating function and an automatic full tank refueling system as in the case of the ground-type refueling device. Function came to be required,
Since the number of switches for selecting these switches increases as the number of functions increases, a large number of operation buttons are disposed in a small hand switch box, and there is a problem that an operation error may occur. The present invention has been made in view of such a problem, and an object thereof is to provide an oil type determination function and an automatic full tank refueling function without increasing the number of switches provided in switches provided in a hand switch box. An object of the present invention is to provide a novel suspension type lubricating device that can be reliably selected by a switch.

[0004]

According to the present invention, there is provided a pump for supplying fuel oil from an oil storage tank, a flow meter for measuring a refueling amount, and a pump provided above the refueling area. Nozzle raising and lowering device, a hose wound and fed by the nozzle raising and lowering device, a refueling nozzle connected to the tip of the hose, and a hand switch box provided near the refueling nozzle and provided with a plurality of switches And, comprising a vapor concentration measuring means for measuring the vapor concentration in the vehicle fuel tank, a refueling amount indicator, an oil type determination function, and a refueling control device having an automatic full tank refueling function,
Wherein the hand switch box, a switch nozzle outputs a rising command to be operated when there a descent command to be operated when present in the raised position, also in the lowered position, is operated before the start refueling that and disable the oil species determination function
Is also continuous with the refueling is pressed in a state of being suspended feed
A switch for commanding oil, when it is operated before the start refueling instructs to cancel the automatic fill-up fueling function and refueling is interrupted
Bei <br/> give a switch for commanding fueling resumption to be operated state, the one switch, and before the start refueling, refueling operation temporary
Different functions can be commanded in the stopped state.
Decrease the number of switches in the box.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the illustrated embodiments. FIGS. 1 and 2 show one embodiment of a refueling facility to which a suspension type refueling device of the present invention is applied, wherein reference numeral 1 denotes a canopy 2 in a refueling area.
A hose reel 6 for rotating and driving a hose reel 6 for winding and unwinding a refueling hose 5 connected to a refueling pump 13 in a machine room 3 via a liquid feeding pipe line 4 by a hose elevating device provided in the machine room 3 A motor 7 and a position detecting means 9 for detecting that a refueling nozzle 8 described later connected to the tip of the hose 5 has reached an ascending position and a descending position are housed therein. It is configured to control winding. The refueling nozzle 8 includes an automatic valve closing mechanism 30 described below and a vapor concentration measuring unit 11. Note that reference numeral 79 in the figure denotes an alarm that issues a notification when the oil type does not match as a result of the oil type determination.

On the other hand, an oil supply pump 13 for pumping fuel oil from an oil storage tank 12, a flow meter 15 connected through a stop valve 14, and a pump motor 16 for driving the oil supply pump 13 are installed in the machine room 3. I have. The flowmeter 15 is provided with a flow rate pulse transmitter 18 for converting a measured amount into an electric signal.

The pump motor 16 and the stop valve 14 are controlled by a control device 80 to be described later. A signal from the flow rate pulse transmitter 18 is sent to the control device 80 and displayed on the display 60 as a refueling amount. You.

Reference numeral 70 denotes a hand switch box provided with various switches for instructing a refueling operation, which is mounted near the nozzle 8 of the refueling hose 5, and as shown in FIG. , Oil type determination function release and continuous refueling switch 72, automatic full tank refueling function release and refueling restart switch 73, and preset refueling switch 7
4 are provided. These switches 71, 72, 7
3 and 74 are connected to the control device 80.

FIGS. 3 and 4 show an embodiment of the above-described refueling nozzle 8. The refueling nozzle body 8 is constituted by a cylinder tip 22 and a cylinder body 23, An air flow path pipe 26 having one end communicating with an opening 25 provided near the tip of the tube tip 22 is inserted into the tube 22, and a check valve provided at the other end of the tube body 23 via a flow path 24. 27, and communicates with a negative pressure chamber 31 of an automatic valve closing mechanism 30 through a flow path 29.

On the other hand, a main valve chamber 32 is provided in the cylinder body 23. The main valve chamber 32 is connected to the other end of the oil supply hose 5 connected to the side surface. A main valve 36 urged by a spring 35 through a valve rod 34 so as to always close the flow path is provided, and on the side surface of the cylindrical body 23, as shown in FIG. Negative pressure chamber 31
An automatic valve closing mechanism 30 for closing the main valve 36 by deforming the diaphragm 37 by the negative pressure generated therein is provided.

As is well known, the automatic valve closing mechanism 30 closes the main valve 36 when the opening 25 of the air flow pipe 26 located at the tip of the cylinder tip 22 is closed by the liquid in the vehicle fuel tank. The negative pressure chamber 31, which communicates with the air flow path pipe 26 through the flow path 29, is constantly urged outward (downward in the figure) by a spring 40. A diaphragm 37 is stretched.

The diaphragm 37 is provided with a U-shaped piece 41 fixed thereto, and is provided with two pins 42, 42 that slide in the long groove of the piece 41 and are provided on a part of the valve rod 34. After being positioned in the notch 43, the push rod 44 is inserted into and removed from the concave portion 45 of the push rod 44 inserted into the valve rod 34, so that the valve rod 34 and the push rod 44 are brought into and out of contact with each other.

The push rod 44 is always in contact with the back surface of the push rod 44 by a spring 46 acting on its rear end so as to urge the oil supply lever 47 forward. One end of the push rod 44 is pivotally supported by a pin 48. By pulling the refueling lever 47, the push rod 44 moves rightward in the drawing against the spring 46, and opens the flow path with the valve rod 34 and the main valve 36 engaged with this via the pin 42. It is configured as follows.

A valve seat 50, which is in contact with the main valve 36 and closes the flow passage, is slidably disposed on the cylinder body 23 upstream of the check valve 27. In addition to the general function, the valve seat 50 is detached from the push rod 44 by detecting the liquid level and contacts the main valve 36 which is in contact therewith. , And the valve rod 34 is again engaged with the push rod 34 via the pin 42. The valve seat 50 moves the main valve 36 rightward in the drawing against the urging force of the spring 35. Is received by the spring 51 that is sufficient to move the spring.

An opening 5 is provided at the tip of the cylinder tip 22.
5, a vapor suction pipe 56, a refueling lever 4
Vapor concentration measuring means 1 which operates in conjunction with the lifting of 7
It communicates with 1.

FIG. 6 shows an embodiment of the control device 80 described above. The refueling control means 81 is for realizing an oil type determining function, an automatic full tank refueling function, a preset refueling function, and the like. Is executed, and the flow rate pulses from the flow rate pulse transmitter 18 are counted and displayed on the display 60.

Reference numeral 82 denotes a function switching means, which is a refueling control means 8.
The switches 71, 72, 73, 74 before and after refueling depend on the state of the refueling operation controlled by 1.
Are output to the refueling control means 81 as shown in Table 1.

[0018]

[Table 1]

That is, before the start of refueling, the switch 71 functions as a nozzle raising / lowering switch, the switch 72 functions as an oil type determination function canceling switch, the switch 73 functions as an automatic tank filling function canceling switch, and the switch 74 functions as a preset refueling switch. After the refueling is interrupted, the switch 72 functions as a continuous refueling switch and the switch 73 functions as a refueling restart switch to output a signal.

Reference numeral 83 denotes a nozzle elevation control means for receiving the signal from the refueling control means 81 and the signal from the nozzle position detection means 9 to rotate the hose reel motor 7 forward and backward.

Reference numeral 84 denotes a vapor concentration measurement control unit which receives a signal from the refueling control unit 81 and receives a signal from the vapor concentration measurement unit 11.
Is operated, the measurement signal is output to the refueling control means 81 to determine the oil type, and the alarm 79 is operated in response to the result of the determination by the refueling control means 81.

Reference numeral 85 denotes an oil feed control means,
In response to a signal from the control unit 1, the driving of the pump motor 16 and the opening and closing operation of the stop valve 14 are controlled.

Next, the operation thus constructed will be described with reference to the flow chart shown in FIG. 7, taking an example of a suspension type refueling device for supplying gasoline. When the nozzle 8 is in the raised position, the nozzle lift switch 71
Is pressed (a), the nozzle switching signal is output from the function switching means 82 and output to the nozzle elevation control means 83 via the refueling control means 81. Accordingly, the nozzle elevation control means 83 rotates the hose reel motor 7 in the normal direction (step b), pulls out the hose 5, and receives the signal output from the position detection means 9 at the time when the hose 5 is pulled out to a refuelable position (step b). C) Stop the hose reel motor 7 (step d).

The refueling control means 81 returns the indicator 60 to zero (Step E), outputs an operation signal to the vapor concentration measurement control means 84, and enters an oil type determination operation (Step F).

When the nozzle 8 is inserted into the vehicle fuel tank for refueling and the refueling lever 47 is pulled to be locked on the locking piece 87, the vapor concentration measuring means 1 interlocks with the lever 47.
1 operates to suck the vapor in the automobile fuel tank from the opening 55 of the nozzle tip 22, and outputs the concentration of the vapor contained therein to the refueling control means 81 via the vapor concentration measurement control means 84.

The oil supply control means 81 determines the oil type based on the inputted vapor concentration, and outputs a signal to the oil supply control means 85 to operate the pump motor 16 when the oil types match (step). (Stepch) to start refueling.

(Automatic refueling) If the switch 73 is not pressed before the refueling is started (step re), the automatic refueling is automatically set in the refueling control means 81 as a default mode (step f). If the switch 73 is pressed before the start of refueling (step ス テ ッ プ), the automatic full tank refueling function is canceled and free refueling is set (step ヌ).

That is, when refueling is started in a state where the switch 73 is not depressed, automatic full tank refueling is performed, fuel oil is discharged to the vehicle fuel tank, and the flow pulse is transmitted from the flow pulse transmitter 18 in accordance with the flow rate. Is output, and the refueling control means 81 displays the refueling amount on the display 60 based on the flow rate pulse, and executes a series of operations required for refueling by the automatic full tank refueling function (step Y).

When fuel oil is discharged from the refueling nozzle 8, the negative pressure of the negative pressure generating part 28 of the check valve 27 acts on the negative pressure chamber 31 of the automatic closing valve 30. Since the opening 25 of the valve 22 is open to the atmosphere, the valve rod 34 remains locked by the bridge 42.

Note that even if any of the switches 71 to 74 of the hand switch box 70 is pressed during the refueling,
The functions of these switches 71 to 74 are invalidated by the function switching unit 82, and the refueling control unit 81 continues to maintain the refueling operation.

As the refueling proceeds, the liquid level in the vehicle fuel tank rises, and bubbles and fuel oil are removed from the opening 25 at the tip of the nozzle tip 22.
Then, the pressure in the negative pressure generating chamber 31 decreases, and the diaphragm 37 overcomes the force of the spring 40 to lift the piece 42. As a result, the valve rod 34 moves to the left in the figure by the spring 35 to bring the main valve 36 into contact with the valve seat 50 to close the flow path.
Stop refueling.

When the input of the flow rate pulse is interrupted, the refueling control means 81 stops the pump motor 16 to stop the supply of fuel oil to the nozzle 8 and reduces the pressure in the main valve chamber 32. As a result, the force of the spring 51 overcomes the force of the spring 35, and moves the valve seat 50 together with the main valve 36 to the right in the drawing.
4 is locked to the piece 42. At the stage when the time for the bubbles in the automobile fuel tank to disappear has passed, the refueling control device 8
1 restarts the pump motor 16, sends fuel oil to the nozzle 8 again, and restarts fueling to the vehicle fuel tank.

Hereinafter, such a process is repeated several times to refuel until the vehicle fuel tank is full. When refueling is completed, the nozzle 8 is pulled out of the vehicle fuel tank, and the refueling lever 47 is released from the locking piece 87.

When the switch 71 is pressed after the refueling is completed (steps o, ta, s), the refueling control means 81 turns off the pump motor 16 (steps) and reverses the hose reel motor 7 (step n). . As a result, the hose 5 is wound around the reel 6 and rises. Nozzle 8
When the nozzle reaches the ascending position and a signal is output from the position detecting means 9 (step na), the nozzle elevating control means 10 stops the hose reel motor 7 (step la).

(Free refueling) On the other hand, when the oil type is determined by the oil type determining operation (step), the pump motor 16 is turned on (step) and before the refueling is started, the oil is already supplied. When the switch 73 is depressed (step re), the automatic full refueling is canceled and free refueling is set (step n).

When free refueling is performed and the refueling amount reaches a desired amount and the refueling lever 47 is returned, the main valve 36 moves to the valve seat 50 to cut off the flow path, and refueling is stopped.

When the switch 71 is pressed after refueling is completed (steps o, ta, d), the refueling control means 81 turns off the pump motor 16 (steps) and reverses the hose reel motor 7 (step n). As a result, the hose 5 is wound around the reel 6 and rises. Nozzle 8
When the nozzle reaches the ascending position (step n), the nozzle elevating control means 10 stops the hose reel motor 7 (step n).

On the other hand, when the automatic full tank refueling or the free refueling is completed (steps Y and L), that is, when it is desired to continue refueling the next vehicle with the nozzle 8 not yet raised, the switch 72 is set. Press (step o).

Since the switch 72 is depressed in the refueling stop state, the function switching means 82 instructs the refueling control means 81 not the original command for canceling the oil type determination operation but the continuous command which is the second command. As a result, the pump motor 16 which was in the on state during the refueling stop is stopped (step W), and the process goes to the step (e) to return the display 60 to zero. Thus, the next refueling operation can be performed without the need to raise and lower the refueling nozzle.

(Additional Refueling) Also, in a state where the refueling operation has been stopped after the predetermined amount of refueling has been completed by the automatic full tank refueling operation (step y), it is desired to perform additional refueling to the same vehicle in which refueling has been stopped. In this case, the switch 73 is pressed (step).

The function switching means 82 determines that the current state is the refueling stop, and instructs the refueling control means 81 to restart refueling. The refueling control means 81 controls the pump motor 16
Activate (Step 、), return to Step (ル), perform free refueling operation, add to the previous refueling amount, and restart refueling.

As described above, in the state where the refueling is stopped, until the switch 71 is pressed (step S) and the end of the refueling operation is instructed, the refueling is continuously performed by pressing the switch 72 (step E). Either additional lubrication by pressing the switch 73 (stepper) can be selected.

On the other hand, the oil type determining operation (step
F) If the match of the oil type cannot be confirmed (step T), the refueling control means 81 activates the alarm 79 to urge the confirmation of the oil type (step S).

When the oil type is confirmed based on the notification and it is found that the oil type is incorrect, the switch 7
Press 2 (Step No). In this case, since the refueling operation has not started yet, the function switching means 82 operates the switch 72.
The notification is stopped by the function of canceling the oil type determination function originally assigned to (step ヲ), and the pump motor 16 is operated (step チ).

When the type of oil is confirmed based on the notification and the type of oil is determined to be different, the switch 71 is pressed (step c).

As a result, the refueling control means 81 performs the notification operation.
Stop the operation (Step Y) and move the hose reel motor
7 is reversed (step n) and the nozzle 8 is moved to the raised position.
To the hose reel mode
(Step Stra).

In the above-described embodiment, gasoline
The case where the present invention is applied to a suspension lubrication system has been described.
The same effect can be obtained even when applied to a suspended oil supply system.
It is clear.

[0048]

As described above, according to the present invention, a pump for feeding fuel oil in an oil storage tank, a flow meter for measuring a refueling amount, a nozzle elevating device provided above a refueling area, by the nozzle elevating device winding a hose is unwound, the oil supply nozzle connected to the distal end of the hose, is provided in the vicinity of the refueling nozzle, the hand switch box having a plurality of switches, in a motor vehicle fuel tank a vapor concentration measuring means for measuring the vapor concentration, and fuel oil amount indicator, oil type determining function, and a fuel supply control device having an automatic fill-up fueling function, wherein the hand switch box, the nozzles raised position If operated when it is present, it will issue a lowering command, and will be operated if it is in the lowering position.
Switch and the operation of before the start refueling for outputting a rising command and
The oil type determination function is disabled , and refueling is interrupted.
A switch that commands continuous lubrication when pressed in the
If operated before refueling starts , the automatic full refueling function is released .
Command, and also because the fuel supply is provided with a switch for commanding fueling resumption to be operated in a suspended state, the switch box
It is possible not only to select the oil type determination function and automatic fill-up fueling functionality scan the few switches, fueling before, and automatically replaced cut <br/> the functions required at that time by the fuel supply interruption state Dangerous operation commands can be prevented.

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of a suspension type lubricating apparatus of the present invention.

FIG. 2 is a diagram showing an oil supply system of the suspension type oil supply device of the present invention.

FIG. 3 is a cross-sectional view showing one embodiment of a fueling nozzle having an automatic tank filling function used in the above-mentioned device.

FIG. 4 is an upper cross-sectional view showing one embodiment of a fueling nozzle provided with an automatic full tank fueling mechanism used in the same device.

FIG. 5 is a diagram showing an embodiment of a hand switch.

FIG. 6 is a block diagram showing an embodiment of control of the above device.

FIG. 7 is a flowchart showing the operation of the above device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Nozzle raising / lowering apparatus 2 Canopy 3 Machine room 5 Oil supply hose 8 Oil supply nozzle 11 Vapor concentration measurement means 12 Oil storage tank 60 Indicator 70 Hand switch box 80 Control device

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B67D 5/00-5/70

Claims (3)

(57) [Claims] 1. A pump for feeding fuel oil from an oil storage tank, a flow meter for measuring a refueling amount, a nozzle elevating device provided above a refueling area, and a hose wound and fed by the nozzle elevating device. A refueling nozzle connected to the tip of the hose, a hand-held switch box provided near the refueling nozzle and provided with a plurality of switches, and a vapor concentration measuring means for measuring a vapor concentration in an automobile fuel tank; A refueling amount display, an oil type determination function, and a refueling control device having an automatic full tank refueling function, the hand switch box is provided with a lowering command when operated when the nozzle is at the ascending position. The switch that outputs an ascending command when operated when it is in the lowered position, and the oil type judgment function is disabled when operated before starting refueling .
Is also continuous with the refueling is pressed in a state of being suspended feed
A switch for commanding oil, when it is operated before the start refueling instructs to cancel the automatic fill-up fueling function and refueling is interrupted
Suspension-type oil device and a switch for commanding the resumption of fueling and operating at state. 2. The suspension according to claim 1 , wherein the refueling control device has a preset refueling function, and the hand switch box has a switch for presetting a refueling amount when operated before starting refueling. Type refueling device. Wherein each switch of the hand switch box according to claim 1 which is in the fueling operation the function is disabled,
Or the suspension type oil supply device according to claim 2.