JPS59163195A - Lubricating nozzle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a refueling nozzle attached to a refueling device.

The refueling device is controlled by a refueling start signal, a refueling stop signal, and the like.

In a conventional refueling device fixed on an island, the refueling device is controlled by a signal emitted from a switch that opens and closes in conjunction with the unhooking of a refueling nozzle hung on a nozzle hook. Furthermore, in a suspended type refueling device in which a refueling hose is suspended from the ceiling, a switch that opens and closes in conjunction with the raising and lowering of the refueling hose, or a signal emitted from a switch provided in the middle of the refueling hose is used.

In any refueling device, the switch that issues the control signal is located away from the refueling nozzle, and in order to issue the control signal, the refueling nozzle must be attached to and removed from the nozzle hook, or the refueling hose must be moved up and down. If you sense danger and want to stop refueling in an emergency, you may not be able to do it in time, or if you refuel multiple cars in succession, it may be difficult to operate. It is desirable that the operation can be performed easily, quickly, and reliably.

However, when operating a switch, if you press it carelessly or touch it pointlessly, you may end up in a dangerous situation.

SUMMARY OF THE INVENTION An object of the present invention is to provide a refueling nozzle in which the operator of a control switch provided on the refueling nozzle is provided in a position where it is easy to operate and to prevent erroneous operation. This is achieved by providing obstacles to prevent malfunctions.

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

Fig. 1 is a longitudinal sectional front view of a refueling nozzle of the present invention attached to a fixed lubrication device, Fig. 2 is a longitudinal sectional front view of a first embodiment of the refueling nozzle of the invention, and Fig. 3 is a longitudinal sectional front view of a first embodiment of the refueling nozzle of the invention. FIG. 4 is a partially cutaway plan view of the main part of the second embodiment.

First, to explain the overall structure of the refueling machine 1, a refueling pump 2.・Flowmeter 5. Valves 6 are sequentially provided, a motor -4 is connected to the oil supply pump 2, a flow meter 5 is connected to a flow rate pulse generator 7, and the valve 6 is connected to a valve drive section 8. .

This flow rate pulse transmitter7. Valve drive section8. Connect motor 4 to control device 9.

Further, the oil supply amount indicator 10 is connected to the control device 9.

The end of the refueling pipe 3 is connected to a refueling hose 11 disposed outside the refueling machine case 1a.

A grip portion 13 is attached to the end of this refueling hose 11. Discharge nozzle 14
．． A refueling nozzle 12 equipped with an on-off valve 15a and an operating lever 15 for opening/closing the valve is connected, and the refueling machine case air a is provided with a nozzle I box 12a having a switch 12b, and the switch 12b is connected to the control device 9.

On the inner wall at the tip of the discharge nozzle 14, a fuel filler insertion sensor 17 using a phototransistor, for example, and a liquid level sensor 18 for detecting the liquid level in the tank are provided.

Also, a portion adjacent to the grip portion 13, for example, the discharge nozzle 14
A switch chamber 16 is provided in the vicinity of the connecting portion.

The switch chamber 16 houses a switch 19 and a lever 1.
The opening is opened in the opposite direction to the position 5, and this opening is covered with a lid 16a and fixed with screws.

The tip of the operator 20 of the switch 19 is within reach of the thumb, for example, while the grip portion 13 is being held in the hand.

Then, it is inserted into the recess j6b formed in the side wall of the switch chamber 16. The wall of the recess 16 serves as an obstacle when pressing the operator 20.

Moreover, the other end is made to face the operating piece 19a of the switch 19. 20 in the figure. 20c is a support member for the operator 20, and 20d is a stopper fixed to the operator 20.

Note that in order to improve operability, the operator 20 is attached to the grip portion 13.
It is desirable to provide it at a position of about 60 degrees with respect to the angle 60 degrees, and it is also desirable to form a head 20b at the tip to prevent immersion.

Said fuel filler insertion sensor 17. A signal line 21 whose end is connected to the liquid level sensor 18 passes through the discharge nozzle 14, passes through the guide rod 31 of the check valve 30, leads to the switch chamber 16, and connects the signal line 21 to the switch 19 via the connector 23. Attach the nozzle 12. It passes through the refueling hose 11 and connects to the control device 9.

In addition, 2:2a, , '22b in the figure are signal lines 21
This is a gasket to prevent liquid from entering the switch chamber 16 from the insertion hole.

The electric circuit up to the second control device 9 is formed of an intrinsically safe circuit, and the switch 19 functions to cause the control device 9 to directly control the refueling operation, cancel automatic control by a sensor, etc., as described later. It is something that does.

In the second embodiment, as shown in FIG.
The tip of the handle 13 is made to protrude from the switch chamber 16 beyond the reach of the fingers of the hand holding the grip part 13, so that it can be operated with the other hand. In this embodiment, the switch chamber 16 serves as an obstacle when pressing the operator 20.

Next, to explain the usage and operation, when refueling a car by the refueling operation of the through hole, first, the refueling nozzle 1
2 is removed from the nozzle hook 12a, a refueling start signal is transmitted to the control device 9 from the switch 12b, and the control device 9 operates to display the refueling amount indicator 10"' = 7 Knees 1. IIftH
/':l:tv 14 G. Ka□. When inserted into the fuel filler port of a hot oil tank, the tip of the discharge nozzle 14 becomes dark, so the fuel filler port insertion sensor 17 detects this and sends the signal to the control device 9 via the signal line 21. The motor 4 of the fuel pump 2 is driven, and the valve drive unit 8 is also operated to open the valve 6 and suck gasoline from the underground tank.

When the lever 15 is pulled, the valve 15a is pushed up to form an open flow path, and gasoline is discharged from the nozzle 14. The flow rate measured by the flow meter 5 is sent from the flow rate pulse transmitter 7 as a flow rate signal to the control device 9, where it is counted and the oil supply amount is displayed on the oil supply amount display meter 10.

When the fuel tank is almost filled with gasoline, the liquid level sensor 18 detects this and sends a signal to the control device 9, which operates the valve drive section 8, closes the valve 6, and stops discharging gasoline.

When the lever 15 is returned and the discharge nozzle 14 is pulled out from the fuel filler port, the tip of the nozzle 14 becomes bright again, so the fuel filler port insertion sensor 17 detects this and sends the signal to the control device 9.
send to As a result, motor 4. The fuel pump 2 stops. The nozzle valve 12 is returned to the nozzle hook 12a again to complete the oil supply.

Next, the operation of the switch provided on the refueling nozzle will be described below.

If the fuel filler insertion sensor 17 does not work because the inside of the fuel filler port is bright because the inside of the tank is shallow in a motorcycle, etc., press the operator 20 of the switch 19 and the fK signal will be transmitted to the control device 9, and the control device 9 will Since the signal came earlier, it is determined that the sensor is disabled, and without looking at the signal from the sensor 17, it sends a signal to the pump drive motor 4 and the drive unit 8 of the valve 6 to enable refueling.

Refueling can be performed by operating the lever 15a.

If an emergency such as a fire occurs during refueling, or if you want to stop refueling before the tank is full, press the switch operator 20 with your thumb while holding the grip 13 while refueling, and the actuating piece 19a will be activated. is pressed, the switch 19 closes, and the signal is transmitted to the control device 9 via the signal line 21. The control device 9 determines that the signal came during refueling, so it is a refueling stop signal, and outputs the signal from the liquid level sensor 18. Sends a valve close signal even if no signal is received. As a result, the valve drive unit 8 operates, the valve 6 closes, and the drive of the pump drive motor 4 is stopped.Also, if you want to continuously refuel the next car after refueling, connect the refueling nozzle 12 to the nozzle hook 12. If the switch 19 is closed before applying the signal to -a, the confidence will be transmitted to the control device 9,
Since the signal is after refueling, the control device 9 determines that it is continuous refueling, issues a continuous refueling signal, and the refueling amount indicator 10 returns to zero, making the next refueling possible, and the nozzle hanger 12. The unlatching operation can be omitted when hooking up to a.

The signal from this switch can be used as a disable signal for the liquid level sensor 18, a throttle signal for the valve 6, and, in the case of a G-type oil supply device, a signal for raising and lowering a hose, and various other control signals.

Furthermore, although the refueling nozzle of the present invention is made for right-handed use, in the case of a left-handed person, a switch operator may be provided on the opposite side.

The refueling nozzle of the present invention is provided with the control switch as described above, but in the first embodiment, the operator thereof is provided in the recess, so the wall of the recess becomes an obstacle and prevents the nozzle from being gripped. The fingers of the hand holding the part do not touch the part unconsciously, and can be pressed with the fingers when necessary.

In addition, in the second embodiment, since the operator is made to protrude toward the opposite side of the grip, the switch/7-inch chamber becomes an obstacle and cannot be touched with the F1 of the hand that is in the middle of the day. Since you use the fingers of another hand when necessary, there is no chance of erroneous operation.

As described above, the refueling nozzle of the present invention has a control switch installed in the refueling nozzle, and an obstacle is provided on the switch operator to prevent malfunction, thereby ensuring ease and speed of operation of the control switch. At the same time, it can prevent erroneous operations such as pressing the button inadvertently.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view of a refueling machine equipped with a refueling nozzle of the present invention, Fig. 2 is a longitudinal sectional front view of a first embodiment of the refueling nozzle of the invention, and Fig. 3 is a main part of the first embodiment. FIG. 4 is a partially cutaway plan view of the main part of the second embodiment. ■...Refueling machine 1a...Refueling machine case 2
...Refueling pump 3-...Refueling pipe 4...Motor 5...Flow rate needle 6...Valve
7...Flow rate pulse transmitter 8...Valve drive unit
9...Control device 10...Refueling amount display meter 1
1... Refueling hose 12... Refueling nozzle 12
a... Nozzle hook 13... Grip portion 14... Discharge nozzle 15... Valve opening/closing operating lever 15a... Valve 16... Switch chamber 16a... Lid 16b... Recessed portion 17.
...Fuel filler insertion sensor 18...Liquid level sensor 19...Switch 19
a... Actuation piece 20.20 "... Operator 20a... Spring 20'b... Head for prevention of immersion 2'Oc... Support member 20d... Strike collar 21...・Signal line 22a, "22b"
・・・Pa・Nokin 23・Connector 30・
... Check valve 31 ... Guide rod applicant Tokyo Tatsuno Co., Ltd.

Claims (3)

[Claims] (1) A refueling nozzle characterized in that an operator of a control switch provided on the refueling nozzle is provided with an obstacle to prevent malfunction. (2) The refueling nozzle according to claim 1, wherein the obstacle for preventing malfunction is a recess that accommodates the end of the operator. − (3) The refueling nozzle according to claim 1, wherein the obstacle for preventing malfunction is a distance that makes it impossible to operate the refueling nozzle with a hand holding the refueling nozzle.