Fuel nozzle

Abstract

To provide a fueling nozzle in which a stop condition of fueling can be easily confirmed at a glance.SOLUTION: A fueling nozzle 1 comprises: a discharge pipe 2 which is inserted inside a fuel tank of a vehicle; a nozzle body 3 to which the discharge pipe is connected, and which has a channel through which fuel oil flows to the discharge pipe; a main valve 5 which is opened by a nozzle lever 4 provided in a grip part 3a of the nozzle body; a lever guard 7 which protects the nozzle lever; and an automatic valve closing mechanism which has an air channel tube 6 with a tip opening inside the discharge pipe, and closes the main valve when a tip opening 6a of the air channel tube is blocked. The nozzle lever is provided in a different color from other components constituting the fueling nozzle. The nozzle lever can be provided in a different color from the grip part and the lever guard, and a cross-sectional area of the nozzle lever can be 1,000 mm2 or larger. A sound production part 7a which produces a sound when an end part of the nozzle lever is abutted can be provided in the lever guard.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fuel nozzle that automatically closes a valve to stop fuel supply when the liquid level in a vehicle fuel tank approaches an upper limit. [Background technology]

[0002] A fueling device is installed at a gas station, which inserts the nozzle of a fueling nozzle into the fuel inlet of a vehicle to supply fuel oil to the fuel tank of the vehicle. Patent Document 1 has already proposed a fueling nozzle that automatically closes a valve to stop fueling when the liquid level in the fuel tank of the vehicle reaches near the upper limit during refueling.

[0003] As shown in FIG. 5, this type of fuel filling nozzle is configured such that, when the air flow passage pipe 36 opening at the tip 32a of the discharge pipe 32 of the nozzle body 33 equipped with a grip portion 33a is closed by the liquid in the tank, the negative pressure generated in the negative pressure generating portion 38 of the fuel filling nozzle 31 deforms the diaphragm 39 of the automatic valve-closing mechanism upward, releasing the engagement of the operating rod 40 and displacing it downward, and also displaces the nozzle lever 34 journaled at the lower end of the operating rod 40 and disposed within the lever guard 37, thereby closing the main valve 35 which had been held in the open state.

[0004] Here, for large vehicles such as large trucks and tourist buses that travel long distances, the refueling operation takes time because the fuel tanks have a relatively large capacity, and the worker must check the refueling stop status (operation of the automatic valve closing mechanism) from a distance while attending to other customers. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 51-33331 Summary of the Invention [Problem to be solved by the invention]

[0006] However, as shown in FIG. 6, in a typical gas station 41, the fuel supply devices 42, 43, etc. are arranged under a canopy 44, and the nozzle lever 34 of the fuel supply nozzle 31 (see FIG. 5 Even if the operation status of the fuel dispenser 34 (see FIG. 5) was checked, it was dark due to the shadow of the canopy 44 and the fuel dispensers 42 and 43, and furthermore, the nozzle lever 34 was the same color as the grip portion 33a (see FIG. 5) and the lever guard 37, so it was difficult to grasp the fuel dispenser stop status. As a result, the refueling time was long, which could cause inconvenience to customers with large vehicles.

[0007] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a fuel nozzle that allows the stoppage of fuel supply to be easily confirmed at a glance. [Means for solving the problem]

[0008] In order to achieve the above object, the present invention provides a fuel filling nozzle comprising: a discharge pipe to be inserted into a fuel tank of a vehicle; a nozzle body to which the discharge pipe is connected and having a flow path through which fuel oil flows to the discharge pipe; a main valve that is opened by a nozzle lever provided on a grip portion of the nozzle body; a lever guard for protecting the nozzle lever; and an automatic valve closing mechanism that has an air flow pipe whose tip opens into the discharge pipe and closes the main valve when the tip opening of the air flow pipe becomes blocked, The end of the nozzle lever abuts It is characterized by having a sound generating section that emits a sound when pressed.

[0009] According to the present invention, The end of the nozzle lever abuts By providing a sound generating unit that emits a sound when the refueling is stopped, i.e., when the refueling state transitions from the refueling state to the state before refueling, the operating status can be confirmed by sound, so that the refueling stop can be reliably recognized even while other vehicles are responding.

[0012] moreover ,before By providing the sound-producing section on the lever guard, the sound can be easily transmitted to the outside, and since the shape of the existing fuel filling nozzle is not changed, there is no effect on the fuel filling operation or the operation of hanging the nozzle on the hook, and the operability of the fuel filling nozzle can be maintained well. Effect of the Invention

[0013] As described above, according to the present invention, a fuel filling nozzle that allows the stopped state of fuel filling to be easily confirmed at a glance can be provided. [Brief description of the drawings]

[0014] [Figure 1] 1 is a front view showing a state before refueling of an embodiment of a refueling nozzle according to the present invention. FIG. [Diagram 2] 2A and 2B are cross-sectional views of the fuel filling nozzle of FIG. 1, where (a) is an overall view and (b) is an enlarged view of part A of (a). [Diagram 3] FIG. 2 is a cross-sectional view showing a state in which the fuel filling nozzle of FIG. 1 is filling with fuel. [Figure 4] FIG. 2 is a front view showing a state before refueling of a reference example of a refueling nozzle according to the present invention. [Diagram 5] FIG. 1 is a cross-sectional view showing an example of a conventional fuel supply nozzle. [Figure 6] FIG. 1 is an overall perspective view showing an example of a conventional gas station. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Next, an embodiment of the present invention will be described in detail with reference to the drawings.

[0016] 1 and 2 show a fuel supply nozzle according to the present invention. one implementation of The fuel nozzle 1 has a discharge pipe 2 inserted into a fuel tank of a vehicle, a nozzle body 3 having a flow path 3b through which fuel oil flows to the discharge pipe 2, a main valve 5 that is opened by a nozzle lever 4 attached to a grip portion 3a of the nozzle body 3, a lever guard 7 that protects the nozzle lever 4, an air flow path pipe 6 whose tip opens into the discharge pipe 2, and a check valve 8, and is also equipped with a diaphragm 9 and a clutch 10 that constitute an automatic valve closing mechanism that closes the main valve 5 when the tip opening of the air flow path pipe 6 becomes blocked.

[0017] The grip 3a of the nozzle body 3 and the lever guard 7 are black, the discharge pipe 2 is steel-colored, and the nozzle lever 4 ofThese components of the fuel nozzle 1 are arranged in a different color from the other components, for example, in a fluorescent color such as yellow-green or yellow-brown. You may do so. In addition, the color of the grip 3a and lever guard 7 is different from that of the grip 3a. So that The nozzle lever 4 may be of the same steel color as the discharge pipe 2 .

[0018] 2(b), the lever guard 7 is provided with a sound-producing part 7a that produces a sound when the end 4a of the nozzle lever 4 comes into contact with it. Because the refueling area is a dangerous area, this sound-producing part 7a is configured to produce a sound by vibrating a skin or the like like a drum, rather than a metal part, in order to prevent static electricity from accumulating.

[0019] Next, a fuel supplying operation using the fuel supply nozzle 1 will be described with reference to FIGS.

[0020] In the state before refueling shown in Fig. 2, the main valve 5 and the check valve 8 are closed. When the gas station attendant pulls up the nozzle lever 4 from this state, the clutch 10 is locked, the valve rod 5a is pushed up around the fulcrum 11, and the main valve 5 opens (see Fig. 3). This allows fuel oil to pass through the main valve 5 from the flow path 3b, push the check valve 8, and be fed from the discharge pipe 2 to the vehicle's fuel tank. At this time, negative pressure is generated in the negative pressure generating section 12, but since air is being supplied from the pilot hole (tip opening) 6a of the air flow path pipe 6, the negative pressure in the diaphragm chamber 13 does not increase. In this state, the gas station attendant checks the operation status of the nozzle lever 4 of the fuel nozzle 1 from a distance while working on another vehicle.

[0021] When the liquid level in the fuel tank rises during refueling and blocks the pilot hole 6a of the air flow pipe 6, air is no longer supplied from the pilot hole 6a, and the negative pressure in the diaphragm chamber 13 increases rapidly through the negative pressure generating unit 12. This causes the diaphragm 9 to move upward, the locked state of the clutch 10 to be released, and the nozzle lever 4 to lose its fulcrum. Then, the main valve 5 is closed by the elastic force of the main valve spring 5b, the flow of fuel oil stops, and the state transitions to the state before refueling shown in FIG. 2. At this time, even if the fuel nozzle 1 is in a dark position behind the canopy 44 or the fuel supply devices 42 and 43 shown in FIG. 6, the nozzle lever 4 is a different color from the other parts, so that the gas station attendant can easily grasp the movement of the nozzle lever 4, and can quickly respond after the refueling stop. In addition, since the end 4a of the nozzle lever 4 abuts against the sound generating unit 7a to generate a sound, the operating status can be confirmed by sound, and the refueling stop can be reliably recognized even while responding to other vehicles.

[0022] Next, the fuel supply nozzle according to the present invention Reference example This will be described with reference to FIG.

[0023] This fuel filling nozzle 21 has the same overall configuration as the fuel filling nozzle 1 shown in Figures 1 to 3, but the nozzle lever 24 is different from the nozzle lever 4 of the fuel filling nozzle 1. The other components, such as the discharge pipe 2, the nozzle body 3, and the lever guard 7, are the same as those of the fuel filling nozzle 1.

[0024] The nozzle lever 24 is the same color as the nozzle lever 4 of the fuel nozzle 1, but is formed thicker than the nozzle lever 4, and has a cross-sectional area (a cross section perpendicular to the axis of the nozzle lever 24) of 1000 mm 2 This makes it easier to check the operating status of the nozzle lever 4 even from a distance.

[0025] The illustrated embodiments are merely examples and are not intended to limit the technical scope of the present invention. [Explanation of symbols]

[0026] 1, 21 Fuel nozzle 2 Discharge pipe 3 Nozzle body 4, 24 Nozzle lever 5 Main valve 6 Air passage tube 7 Lever guard 8. Check valve 9 Diaphragm 10. Clutch 11 Fulcrum 12 Negative pressure generating section 13 Diaphragm chamber

Claims

1. A fuel nozzle comprising: a discharge pipe inserted into a fuel tank of a vehicle; a nozzle body to which the discharge pipe is connected and having a flow path through which fuel oil flows to the discharge pipe; a main valve opened by a nozzle lever provided on a grip of the nozzle body; a lever guard for protecting the nozzle lever; and an automatic valve closing mechanism having an air flow pipe whose tip opens into the discharge pipe and which closes the main valve when the tip opening of the air flow pipe becomes blocked, A fuel filling nozzle characterized in that it is provided with a sound generating portion that generates a sound when the end of the nozzle lever comes into contact with the sound generating portion.

2. The fuel nozzle according to claim 1, wherein the sound generating portion is provided on the lever guard.

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