JP2020075729A - Oil supply nozzle - Google Patents

Abstract

To provide an oil supply nozzle which prevents leakage of fuel oil during a period between removal of the oil supply nozzle from a nozzle hook and insertion thereof into an oil supply port of a vehicle.SOLUTION: There is provided an oil supply nozzle 11 comprising a nozzle cylindrical tip 2, a fuel oil flow channel 4 communicating with the nozzle cylindrical tip at one end and communicating with an oil supply hose 3 at the other end, a main valve 6 provided at the fuel oil flow channel and opened by an oil supply lever 5, and an automatic closing valve mechanism having an air pipe 7 opened on one end within the nozzle cylindrical tip and closing the main valve when a tip opening 7a of the air pipe is closed, the oil supply nozzle comprising a closure member 12 for closing the tip opening of the air pipe until the nozzle cylindrical tip is inserted into an oil supply port of a vehicle. The closure member is formed from an elastic body, comprises a plate part 12a and a lid part 12c having an opening 12d, and the tip opening of the air pipe is closed by the lid part of the closure member until the nozzle cylindrical tip is inserted into the oil supply port, the plate part is pressed by the oil supply port once the nozzle cylindrical tip is inserted into the oil supply part of the vehicle so that the tip opening of the air pipe and the opening of the lid part overlap each other.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a fueling nozzle, and more particularly to a fueling nozzle including an automatic valve closing mechanism capable of automatically performing full tank fueling.

  2. Description of the Related Art In recent years, the number of self-service gas stations where customers themselves perform refueling work, service work such as window cleaning, and refueling fee adjustment work for the purpose of reducing labor costs is rapidly increasing. In such a self-service filling station, the customer operates the refueling device in accordance with the display or voice for the refueling guidance to input the refueling setting data such as the type of oil and the refueling amount, and to settle the charge after the refueling is completed. ..

  On the other hand, since fuel oil for automobiles is highly flammable, basic safety matters such as stopping the engine of the automobile and obliging workers to quit smoking are specified when refueling.

  The present applicant has proposed a refueling management system in which a customer can safely refuel at a self-service refueling station in consideration of safety during refueling. According to this system, as shown in FIG. 6, when the customer sets refueling with the refueling device 31, a refueling request signal is sent from the refueling device 31 to the POS 32, and a refueling permission signal is sent from the POS 32 to the self-service console 33. Then, the worker at the gas station confirms the safety and transmits a refueling permission signal from the self-service console 33 to the refueling device 31 to refuel (see Patent Document 1).

JP, 9-142587, A

  Although the invention described in Patent Document 1 is also effective, it requires a capital investment on the gas station side. Further, since the refueling pump is driven by obtaining the refueling permission from the self-service console 33, if the refueling lever is pulled before the refueling nozzle is inserted into the refueling port of the vehicle, fuel oil is discharged and there is a risk of ignition. Therefore, it is necessary to warn the customer with a display or voice so as not to pull the refueling lever until the refueling nozzle is inserted into the refueling port, and the operator of the refueling station needs to monitor the customer. Is big.

  Therefore, the present invention has been made in view of the above problems in the conventional technique, and prevents leakage of fuel oil during the period from the removal of the refueling nozzle from the nozzle hook to the insertion of the refueling port of the vehicle. An object is to provide a possible fueling nozzle.

  In order to achieve the above object, the present invention provides a nozzle cylinder tip portion, a fuel oil flow passage having one end communicating with the nozzle cylinder tip portion and the other end communicating with an oil supply hose, and an oil supply lever provided in the fuel oil flow passage. And an automatic valve closing mechanism that has an air tube with a tip opening inside the nozzle tube tip and that closes the main valve when the tip opening of the air tube is closed. The fueling nozzle is characterized by comprising a closing member that closes a tip opening of the air pipe until the nozzle cylinder tip portion of the fueling nozzle is inserted into a fueling port of a vehicle.

  According to the present invention, the tip opening of the air pipe is closed by the closing member and the main valve is closed by the automatic valve closing mechanism until the nozzle cylinder tip portion of the oil supply nozzle is inserted into the oil supply port of the vehicle. Is safe because the fuel oil does not leak even if you pull the refueling lever.

  In the fueling nozzle, the closing member is formed of an elastic body, one end is fixed to the outer peripheral surface of the nozzle cylinder tip portion, and a plate-shaped portion extending toward the opening end portion side of the nozzle cylinder tip portion, The lid of the closing member is provided continuously with the other end of the plate-shaped portion and has a lid portion having an opening, and the nozzle cylinder tip portion of the oil supply nozzle is inserted into an oil supply port of a vehicle. When the tip end opening of the air pipe is closed by the portion and the nozzle tube tip portion is inserted into the fuel filler port of the vehicle, the plate portion is pressed by the fuel filler port, whereby the tip end opening of the air pipe and the lid are closed. The openings of the parts can be configured to overlap. This makes it possible to prevent fuel oil from leaking with a simple configuration.

  In the oil supply nozzle, the closing member is formed of an elastic body, has one end fixed to an outer peripheral surface of the nozzle barrel tip portion, and has a plate shape extended in an arc shape toward the opening end side of the nozzle barrel tip portion. A member, the tip opening of the air pipe located in a recess formed in the nozzle tube tip portion is inserted into the plate member until the nozzle tube tip portion of the oil supply nozzle is inserted into a fuel filling port of a vehicle. When the nozzle cylinder tip portion is inserted into the fuel filler port of the vehicle, the central portion of the plate-shaped member is pressed by the fuel filler port, and the lid portion covers the tip opening of the air pipe. Can be configured to move away from. This makes it possible to prevent fuel oil from leaking with a simple structure, and to automatically close the fuel tank of the vehicle even if the fuel tank of the vehicle is not full, because the tip opening of the air pipe is blocked by the bounce of fuel oil. It is possible to prevent the refueling from being stopped by the valve mechanism, and it is possible to quickly and reliably perform full tank refueling.

  As described above, according to the present invention, it is possible to prevent the leakage of fuel oil during the period from the removal of the refueling nozzle from the nozzle hook to the insertion into the refueling port of the vehicle.

It is a schematic diagram for demonstrating the automatic valve closing mechanism of a fueling nozzle. In 1st Embodiment of the oil supply nozzle which concerns on this invention, it is a partial schematic sectional drawing which shows the state before inserting a nozzle cylinder tip part into the oil supply port of a vehicle, (a) is a front view, (b) is a left side. A side view, (c) is a bottom view. 3A and 3B are partial schematic cross-sectional views showing a state in which the tip of the nozzle cylinder of the oil supply nozzle shown in FIG. 2 is inserted into an oil supply port of a vehicle, in which (a) is a front view, (b) is a left side view, and (c) is a bottom view. Is. In 2nd Embodiment of the oil supply nozzle which concerns on this invention, it is a partial schematic sectional drawing which shows the state before inserting a nozzle cylinder tip part into the oil supply port of a vehicle, (a) is a front view, (b) is a left side. A side view, (c) is a bottom view. 5A and 5B are partial schematic cross-sectional views showing a state in which a nozzle cylinder tip portion of the fuel filler nozzle shown in FIG. 4 is inserted into a fuel filler port of a vehicle, in which FIG. 4A is a front view, FIG. 4B is a left side view, and FIG. Is. It is a whole lineblock diagram showing an example of the conventional refueling management system.

  Next, modes for carrying out the present invention will be described in detail with reference to the drawings.

  Before explaining the fueling nozzle according to the present invention, the automatic valve closing mechanism of the fueling nozzle will be briefly described. Such an oil supply nozzle is described in, for example, Japanese Patent Laid-Open No. 3-64398.

  As shown in FIG. 1, the refueling nozzle 1 includes a nozzle barrel tip portion 2, a fuel oil passage 4 having one end communicating with the nozzle barrel tip portion 2 and the other end communicating with an oil supply hose 3, and a fuel oil passage 4 A main valve 6 that is opened by pulling the refueling lever 5, an air pipe 7 whose tip opens into the nozzle barrel tip 2 (tip opening 7a), and a negative pressure generating portion 8 that communicates with the air pipe 7. The main valve 6 is opened while the tip opening 7a of the air tube 7 is opened, and when the tip opening 7a of the air tube 7 is closed, the negative pressure generating section 8 becomes negative pressure, and a diaphragm or the like is used. The main valve 6 closes. With this configuration, when the nozzle barrel tip portion 2 is inserted into the fuel filler port of the vehicle and fueled, the level of the fuel oil in the fuel filler tank rises and the tip opening 7a of the air pipe 7 is closed automatically. The main valve 6 is closed and full tank refueling can be performed.

  2 and 3 show a first embodiment of the fueling nozzle according to the present invention, and show only the tip of the nozzle barrel tip 2 of the fueling nozzle 11. The refueling nozzle 11 includes a nozzle barrel tip portion 2, an air pipe 7 having a tip opening 7a inside the nozzle barrel tip portion 2, and a tip opening 7a of the air pipe 7 until the nozzle barrel tip portion 2 is inserted into a fuel filler port of a vehicle. And a closing member 12 for closing. The other components such as the fueling lever and the automatic valve closing mechanism are the same as those of the fueling nozzle 1 shown in FIG.

  The air tube 7 is composed of a metal tubular portion 7b at the tip and a resin tubular portion 7c connected to the tubular portion 7b, and the tip opening 7a is located at the tip of the tubular portion 7b. The right end of the tubular portion 7c communicates with the negative pressure generating portion 8 shown in FIG.

  The closing member 12 is formed of an elastic body such as spring steel, is provided at an elongated plate-shaped portion 12a and one end of the plate-shaped portion 12a, surrounds the outer peripheral surface of the nozzle barrel tip portion 2, and is fixed to this outer peripheral surface. An annular mounting portion 12b and a lid portion 12c are provided at the other end of the plate-shaped portion 12a, and an opening portion 12d having a diameter substantially the same as that of the tip opening 7a of the air tube 7 is formed in the lid portion 12c.

  By the closing member 12, the plate-like portion 12a is curved so as to hang down by its own weight and the lid portion 12c is opened at the tip end of the air pipe 7 until the nozzle barrel tip portion 2 of the fuel filler nozzle 1 is inserted into the fuel filler port of the vehicle. 7a is closed. Thus, even if the customer pulls the refueling lever, the main valve is closed by the automatic valve closing mechanism, so that the fuel oil is not discharged. On the other hand, when the nozzle tube tip portion 2 is inserted into the fuel filler opening of the vehicle, the plate-shaped portion 12a abuts against the fuel filler opening and is pushed up in the direction of arrow F from below as shown in FIG. 2 (a). The lid 12c also rises, and as shown in FIG. 3, the opening 12d and the tip opening 7a of the air tube 7 overlap with each other to close the tip opening 7a, so that the main valve opens and the refueling lever is pulled. Can be refueled.

  4 and 5 show a second embodiment of the oil supply nozzle according to the present invention. This oil supply nozzle 21 has a nozzle cylinder tip portion 22 having a notch 22a at the lower end of the tip and an opening at the tip (tip opening 27a). The air pipe 27 and the closing member 28 that closes the tip opening 27a of the air pipe 27 until the nozzle barrel tip portion 22 is inserted into the fuel filler port of the vehicle are provided. Like the first embodiment, the description of the other components will be omitted.

  The air tube 27 is composed of a tubular portion 27b made of metal at the tip and a tubular portion 27c made of resin connected to the tubular portion 27b. The tip portion of the tubular portion 27b is directed obliquely downward. An inclined surface that inclines is formed, and the tip opening 27a is located on this inclined surface. The right end of the tubular portion 27c communicates with the negative pressure generating portion 8 shown in FIG.

  The closing member 28 is formed of an elastic body such as spring steel, is provided at an elongated plate-shaped portion 28a and one end of the plate-shaped portion 28a, and surrounds the outer peripheral surface of the nozzle barrel tip portion 22 and is fixed to this outer peripheral surface. An annular mounting portion 28b and a lid portion 28c located at one end of the plate-shaped portion 28a are provided. The width of the lid portion 28c is formed to be slightly smaller than the width of the notch 22a of the nozzle barrel tip portion 22, and the elasticity of the plate portion 28a holds the lid portion 28c inside the nozzle barrel tip portion 22.

  According to the refueling nozzle 21, until the nozzle cylinder tip portion 22 of the refueling nozzle 21 is inserted into the refueling port of the vehicle, the elasticity of the plate-shaped portion 28a of the closing member 28 causes the lid portion 28c to move to the distal end portion of the tubular portion 27b. Abutting on the inclined surface of and closing the front end opening 27a. As a result, the fuel oil is not discharged even if the customer pulls the refueling lever. On the other hand, when the nozzle barrel tip portion 22 is inserted into the fuel filler port of the vehicle, as shown in FIG. 4A, the central portion of the plate-shaped portion 28a is pushed up in the direction of arrow G from below, and the lid portion 28c is moved to the air pipe. The tip opening 27a of the air pipe 27 is separated from the tip opening 27a of the air tube 27, and the blockage of the tip opening 27a of the air tube 27 is released. Further, at the time of refueling shown in FIG. 5, the lid portion 28c of the closing member 28 can prevent the rebound of the fuel oil to the tip end opening 28a of the air pipe 27, so that the malfunction of the automatic valve closing mechanism can be prevented. Refueling can be performed quickly and reliably.

  The configurations of the nozzle tube tips 2 and 22, the air pipes 7 and 27, and the closing members 12 and 28 in the above-described embodiment are examples, and other configurations may be used as long as the above-described effects can be exhibited. ..

1 Refueling Nozzle 2 Nozzle Tip 3 Refueling Hose 4 Fuel Oil Flow Path 5 Refueling Lever 6 Main Valve 7 Air Pipe 8 Negative Pressure Generating Unit 11 Refueling Nozzle 12 Closing Member 21 Refueling Nozzle 27 Air Pipe 28 Closing Member

Claims (3)

A nozzle cylinder tip portion, a fuel oil flow passage having one end communicating with the nozzle cylinder tip portion and the other end communicating with an oil supply hose, a main valve provided in the fuel oil flow passage and opened by an oil supply lever, and the nozzle A refueling nozzle having an automatic valve closing mechanism for closing the main valve when the tip end opening of the air tube has an air tube with a tip opening inside the cylinder tip portion,
A refueling nozzle comprising a closing member that closes a front end opening of the air pipe until the nozzle cylinder tip portion of the refueling nozzle is inserted into a refueling port of a vehicle.   The closing member is formed of an elastic body, has one end fixed to the outer peripheral surface of the nozzle barrel tip portion, and extends toward the opening end of the nozzle barrel tip portion, and a plate-shaped portion of the plate-like portion. The air pipe is provided by the lid portion of the closing member until the nozzle cylinder tip portion of the refueling nozzle is inserted into a fuel filling port of the vehicle, the lid portion being continuously provided at the other end and having a lid portion having an opening portion. When the tip end opening of the nozzle tube tip is closed and the nozzle cylinder tip portion is inserted into the fuel filler port of the vehicle, the tip end opening of the air pipe and the opening portion of the lid portion are pressed by the plate portion being pressed by the fuel filler port. The refueling nozzle according to claim 1, wherein the refueling nozzles overlap each other.   The closing member is a plate-shaped member that is formed of an elastic body, has one end fixed to the outer peripheral surface of the nozzle cylinder tip portion, and extends in an arc shape on the opening end side of the nozzle cylinder tip portion, Until the nozzle barrel tip of the fueling nozzle is inserted into the fuel filler port of the vehicle, the tip end opening of the air pipe located in the recess formed in the nozzle barrel tip is provided at the other end of the plate member. When the nozzle cylinder tip portion is covered with a lid portion and is inserted into a fuel filler opening of a vehicle, the center portion of the plate-shaped member is pressed by the fuel filler opening, and the lid portion is separated from the tip opening of the air pipe. The refueling nozzle according to claim 1.

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