JPWO2011074593A1 - Vehicle fuel supply pipe device - Google Patents

Abstract

Provided is a vehicle fuel supply pipe device capable of suppressing fuel discharged from a fuel supply gun from being blown out from a fuel supply port in a state where a shutter member is closed. The vehicle fuel supply pipe device (10) includes a filler pipe (14), a fuel supply port (16) provided in the filler pipe (14) and into which a fuel supply gun (20a) is inserted, and the fuel supply port (16). And a shutter mechanism (26) having openable and closable shutter members (24a, 24b) that are opened when the fuel gun (20a) is pushed in. The shutter mechanism (26) includes a blowout prevention unit that suppresses the fuel discharged from the fueling gun (20a) from being blown out from the fueling port (16) when the shutter members (24a, 24b) are closed. .

Description

  The present invention provides a filler pipe for supplying fuel to a fuel tank of a vehicle, an oil supply port provided in the filler pipe, into which an oil supply gun is inserted, an inner side of the oil supply port, and the oil supply gun The present invention relates to a vehicular fuel supply pipe device including a shutter mechanism having an openable / closable shutter member that is opened by being pushed in.

  A fuel tank is used to supply fuel to the internal combustion engine. A filler pipe (inlet pipe) is attached to the fuel tank in order to supply fuel into the fuel tank.

  Normally, gasoline and light oil are used as vehicle fuel. And in order to distinguish gasoline and light oil at the time of refueling, the oil supply gun for gasoline and the oil supply gun for light oil are set to the dimension from which each nozzle outer diameter differs. For this reason, in the filler pipe, a shutter member that can be freely opened and closed is attached to the inside of the fuel filler opening in correspondence with the fuel gun having a different diameter.

  Therefore, for example, a fuel replenishment error prevention device disclosed in JP-T-2009-502611 is known. As shown in FIG. 10, this fuel supply error prevention device has a plastic sleeve 1, in which an eccentric inner ring 2 is formed, and in the inner ring 2 is formed. For example, the receiving means 3 of the fuel gun for diesel fuel is held.

  The receiving means 3 is provided with ribs 5a and 5b, which are arranged in the vicinity of the inner ring 2 of the sleeve 1 so as to be swingable about the pivot shafts 4a and 4b, respectively. The ribs 5 a and 5 b are arranged so as to incline toward each other toward the inner side (fuel tank side) of the sleeve 1, and are urged to approach each other via the rubber ring 6.

  A flap 8 is supported at the tip of the rib 5a via a hinge shaft 7, and a lock edge 8a of the flap 8 is inserted and supported in a lock groove 9 formed at the tip of the rib 5b.

  When a diesel fuel oil gun is inserted into the sleeve 1, the oil gun comes into sliding contact with the ribs 5a and 5b and swings the tip sides of the ribs 5a and 5b away from each other, so that Is pushed into. For this reason, the lock edge 8a of the flap 8 is detached from the lock groove 9 of the rib 5b, and the flap 8 swings around the hinge shaft 7 as a fulcrum. Therefore, the fuel gun is pushed into the fuel tank side through the receiving means 3.

  On the other hand, when a gasoline fuel oil gun is inserted into the sleeve 1, the fuel gun has a smaller outer diameter than the diesel fuel oil gun, and has a function of pushing the leading ends of the ribs 5a and 5b. Not. Thereby, the flap 8 is supported in a state where the lock edge 8a is fitted in the lock groove 9, and the flap 8 is not released.

  However, in the above configuration, there is a case where a fuel gun for diesel fuel or a fuel gun for gasoline fuel is inserted into the sleeve 1 and fuel is discharged from the fuel gun without the flap 8 being opened. At this time, since fuel is discharged in a state where the nozzle tip of the fuel gun is in contact with the flap 8, the fuel discharged from the nozzle tip is rebounded by the flap 8 and is the fuel supply that is the mouth of the sleeve 1. There is a risk of being blown out of the mouth. Accordingly, the fuel is scattered toward the worker who is refueling.

  The present invention solves this type of problem, and it is possible to suppress the fuel discharged from the fuel gun from being blown out from the fuel filler port to the outside while the shutter member is closed. An object is to provide a pipe device.

  The present invention provides a filler pipe for supplying fuel to a fuel tank of a vehicle, an oil supply port provided in the filler pipe, into which an oil supply gun is inserted, an inner side of the oil supply port, and the oil supply gun The present invention relates to a vehicular fuel supply pipe device including a shutter mechanism having an openable / closable shutter member that is opened by being pushed.

  The shutter mechanism includes a blowout prevention unit for suppressing the amount of blowback so that the fuel discharged from the fueling gun is blown to the outside from the fueling port while the shutter member is closed. Yes.

  In the present invention, by providing the blowout prevention portion, it is possible to suppress the fuel discharged from the fueling gun from being blown out from the fueling port while the shutter member is closed. For this reason, it is possible to suppress the amount of fuel scattered toward the worker performing the refueling operation with a simple configuration.

It is a schematic structure figure of the state where the fuel supply pipe device for vehicles concerning a 1st embodiment of the present invention was built in the fuel tank. It is an expanded sectional explanatory view of the fuel supply pipe device for vehicles. It is explanatory drawing of the state by which the fueling gun was inserted in the said fuel supply pipe apparatus for vehicles. It is operation | movement explanatory drawing of the said shutter mechanism. It is a schematic explanatory drawing of the fuel supply pipe apparatus for vehicles which concerns on the 2nd Embodiment of this invention. It is a schematic explanatory drawing of the shutter mechanism which comprises the fuel supply pipe apparatus for vehicles which concerns on the 3rd Embodiment of this invention. It is a schematic explanatory drawing of the shutter mechanism which comprises the fuel supply pipe apparatus for vehicles which concerns on the 4th Embodiment of this invention. It is a schematic explanatory drawing of the shutter mechanism which comprises the fuel supply pipe apparatus for vehicles which concerns on the 5th Embodiment of this invention. It is a schematic explanatory drawing of the shutter mechanism which comprises the fuel supply pipe apparatus for vehicles which concerns on the 6th Embodiment of this invention. It is sectional explanatory drawing of the fuel supply mistake prevention apparatus currently disclosed by the Japanese translations of PCT publication No. 2009-502611.

  As shown in FIG. 1, the vehicle fuel supply pipe device 10 according to the first embodiment of the present invention is incorporated in a fuel tank 12.

  The fuel tank 12 stores the fuel F, and one opening 14 a of the filler pipe 14 is opened in the fuel tank 12. The other opening 14 b of the filler pipe 14 is opened to the fuel filler port 16. A breather pipe 18 for discharging air in the fuel tank 12 to the outside when the fuel F is supplied to the fuel tank 12 is provided in the vicinity of the opening 14b of the filler pipe 14 and the upper portion of the fuel tank 12. Arranged.

  As shown in FIG. 2, the vehicle fuel supply pipe device 10 includes a filler pipe 14, a fuel supply port 16 provided in the filler pipe 14 and into which a fuel supply gun 20 a (20 b) is inserted, And a shutter mechanism 26 having openable and closable shutter members 24a and 24b that are opened when the fuel gun 20a is pushed in.

  The fueling gun 20a has a light oil nozzle 28a, while the fueling gun 20b has a gasoline nozzle 28b. The outer diameter D1 of the nozzle 28a is set to be larger than the outer diameter D2 of the nozzle 28b (D1> D2), and distinguishes between light oil and gasoline. As will be described later, the shutter mechanism 26 allows the nozzle 28a to enter while restricting the entrance of the nozzle 28b.

  An inner cylinder member 29 is mounted on the inner peripheral surface of the filler pipe 14 between the oil filler port 16 and the shutter mechanism 26, and a holding member 30 is disposed on the inner cylinder member 29. . The holding member 30 has an inner peripheral surface 30 a that holds the outer periphery of the nozzle 28 a when the nozzle 28 a is inserted inward of the fuel filler opening 16.

  The holding member 30 supports the shutter members 24a and 24b so as to be swingable via the support shafts 32a and 32b. The shutter members 24a, 24b have a substantially semi-cylindrical shape with one end opened, and projecting portions 34a, 34b bulging outward are provided at the open end. Oval guide holes 36a and 36b into which the support shafts 32a and 32b are inserted are formed in the protrusions 34a and 34b. At the open / close end portions of the shutter members 24a and 24b, substantially semicircular closing plate portions 38a and 38b are provided, respectively.

  On the inner peripheral surfaces of the shutter members 24a and 24b, for example, locking portions 40a and 40b are directed inward as shutter opening permitting portions that allow the nozzles 28a to pass according to the outer diameter dimensions of the nozzles 28a and 28b. And bulging. The locking portions 40a and 40b have a substantially mountain shape in cross section, and an inner diameter D3 passing through the tops of the locking portions 40a and 40b is smaller than the outer diameter D1 of the nozzle 28a and larger than the outer diameter D2 of the nozzle 28b. It is set (D1> D3> D2).

  An elastic ring 41 made of rubber or resin is wound around the outer periphery of the shutter members 24a and 24b. The shutter members 24a and 24b are always urged in the closing direction via the elastic force of the elastic ring 41, that is, the closing plate portions 38a and 38b are in contact with each other.

  In the first embodiment, the shutter mechanism 26 prevents the fuel F discharged from the nozzle 28b from blowing out from the fuel filler port 16 to the outside while the shutter members 24a and 24b are closed. Parts are provided. The blowout prevention portion is provided on the surface of the shutter members 24a and 24b on the fuel filler port 16 side, and includes a recess 42 for forming an opening between the nozzle tip of the nozzle 28b.

  The nozzles 28a and 28b are provided with an auto-stop sensor 44 for detecting the fuel F and stopping refueling at a position spaced inward by a predetermined distance from the nozzle tip.

  The operation of the vehicle fuel supply pipe device 10 will be described below.

  First, the light oil supply gun 20a is operated, and the nozzle 28a is inserted inward from the oil supply port 16 of the filler pipe 14 in the direction of arrow A as shown in FIG. When the nozzle 28a is guided by the inner peripheral surface 30a of the holding member 30 and is inserted into the shutter mechanism 26, the nozzle tip of the nozzle 28a comes into contact with the protrusions 34a and 34b which are shutter opening permitting portions.

  Here, the inner diameter D3 passing through the tops of the protrusions 34a and 34b is set to be smaller than the outer diameter D1 of the nozzle 28a, and the tip of the nozzle contacts the protrusions 34a and 34b. For this reason, the shutter members 24a and 24b oscillate in a direction (opening direction) away from each other with the support shafts 32a and 32b as fulcrums against the elastic force of the elastic ring 41. Therefore, the blocking plate portions 38a and 38b are opened, and the nozzle 28a can enter the inside of the filler pipe 14 through the shutter mechanism 26 (see FIG. 3).

  In this state, the fuel supply gun 20a is operated, and fuel F (light oil) is supplied into the fuel tank 12 through the filler pipe 14 from the nozzle 28a. Then, when the sensor 44 detects the fuel F, the fuel supply by the fuel supply gun 20a is automatically stopped.

  On the other hand, as shown in FIG. 4, when the gasoline refueling gun 20 b is operated and the nozzle 28 b is inserted into the filler pipe 14 from the refueling port 16, the nozzle 28 b is restricted from further intrusion by the shutter mechanism 26. Is done. That is, the outer diameter D2 of the nozzle 28b is set to be smaller than the inner diameter D3 of the virtual circle passing through the tops of the protrusions 34a and 34b.

  However, in the state of FIG. 4, the fuel gun 20 b may be operated to discharge fuel F (gasoline) from the nozzle tip toward the shutter mechanism 26. Here, the shutter mechanism 26 is formed with a recess (blowout prevention portion) 42 for forming an opening portion between the closing plate portions 38a and 38b on the oil supply port 16 side and the tip of the nozzle.

  Therefore, the fuel F discharged from the tip of the nozzle 28b is once introduced into the opening formed by the recess 42, and the discharge momentum is attenuated and returned to the nozzle 28b. Then, when the sensor 44 provided in the nozzle 28b detects the fuel F, the refueling of the fuel F from the refueling gun 20b is automatically stopped.

  Thereby, in 1st Embodiment, it can suppress that the fuel F discharged from the nozzle 28b ejects outside from the fuel filler opening 16 in the state which the shutter mechanism 26 was obstruct | occluded. For this reason, it becomes possible to suppress reliably that gasoline scatters toward the worker who is refueling with a simple configuration.

  FIG. 5 is a cross-sectional explanatory view of a main part of a vehicle fuel supply pipe device 50 according to the second embodiment of the present invention.

  In addition, the same referential mark is attached | subjected to the component similar to the fuel supply pipe apparatus 10 for vehicles which concerns on 1st Embodiment, and the detailed description is abbreviate | omitted. Similarly, in the third and subsequent embodiments described below, detailed description thereof is omitted.

  The vehicle fuel supply pipe device 50 includes a shutter mechanism 52, and the shutter mechanism 52 includes an openable shutter member 54 that is opened when the fuel supply gun 20 a is pushed.

  The shutter mechanism 52 is provided with a projection 34 having a guide hole 36 into which the support shaft 32 provided in the holding member 30 is inserted, and is closed so as to abut on the front end side of the holding member 30 and close the front end side of the nozzle 28a. A plate portion 38 is provided. The closing plate portion 38 has a substantially disk shape, and a sealing member is provided at a contact portion with the holding member 30 as necessary. A spring 56 is wound around the support shaft 32, and this spring 56 constitutes a return spring that applies the shutter member 54 to the closed position.

  In the second embodiment, the blowout prevention portion is configured by forming a recess 58 on the surface of the shutter member 54 on the fuel filler port 16 side to form an opening between the nozzle tip of the nozzle 28a. Yes.

  In the filler pipe 14, a shutter opening permission portion 60 is provided supported by the inner cylinder member 29. The shutter opening allowance portion 60 includes an annular ring body 62 and a plurality of insertion guide portions 64 provided at predetermined intervals in the circumferential direction of the ring body 62. The insertion guide part 64 is formed of an elastically deformable resin material.

  The diameter of the virtual circle formed along the inner peripheral surface of each insertion guide portion 64 is set to be smaller than the outer diameter (D1) of the nozzle 28a and larger than the outer diameter (D2) of the nozzle 28b. . When the nozzles 28a are inserted, the insertion guide portions 64 are elastically deformed outward in the radial direction, so that the lock state (not shown) of the shutter mechanism 52 is released.

  In the second embodiment, the fuel gun 20a is operated, and the nozzle 28a is inserted from the fuel filler port 16 in the direction of arrow A. The nozzle 28a abuts on the inner peripheral surfaces of the plurality of insertion guide portions 64 constituting the shutter opening allowance portion 60, and elastically deforms the insertion guide portion 64 in the radially outward direction. Accordingly, the shutter mechanism 52 is released from the locked state by the lock mechanism.

  In this state, when the nozzle 28 a is further inserted in the direction of arrow A, the tip of the nozzle 28 a comes into contact with the closing plate portion 38 and opens the shutter member 54 against the elastic force of the spring 56. For this reason, the nozzle 28 a can pass through the shutter mechanism 52 and enter the filler pipe 14.

  On the other hand, in the fuel gun 20b, when the small-diameter nozzle 28b is inserted into the fuel filler port 16 along the direction of the arrow A, the shutter opening permission portion 60 does not elastically deform the insertion guide portions 64, and the shutter mechanism 52 side Enter. Accordingly, the shutter mechanism 52 is maintained in the locked state by the lock mechanism, and the nozzle 28b is blocked by the shutter member 54 and cannot enter further in the arrow A direction.

  In this state, fuel F (gasoline) may be supplied by the fuel gun 20b. On the other hand, in the fuel supply gun 20a, the supply of the fuel F (light oil) may be started in a state where the tip of the nozzle 28a is in contact with the shutter member 54 even though the shutter mechanism 52 is unlocked. There is.

  In this case, in the second embodiment, a recess 58 for forming an opening between the shutter member 54 and the nozzle tip is formed on the surface on the fuel filler opening 16 side. For this reason, even if the fuel F is supplied from the nozzles 28a (28b) with the shutter member 54 closed, the fuel F is once introduced into the recess 58 and the injection force is attenuated. As a result, the same effects as those of the first embodiment described above can be obtained, such as the fuel F being prevented from blowing out from the fuel filler port 16 to the outside.

  FIG. 6 is a schematic configuration explanatory diagram of a shutter mechanism 70 constituting a vehicle fuel supply pipe device according to a third embodiment of the present invention.

  The shutter mechanism 70 is configured substantially the same as the shutter mechanism 52 according to the second embodiment, but the shutter mechanism 26 according to the first embodiment may be used. Similarly, in the fourth to sixth embodiments described below, the shutter mechanism 26 may be employed instead of the shutter mechanism 52.

  The shutter member 72 constituting the shutter mechanism 70 constitutes a blowout prevention portion by forming, for example, one or more hole portions 74 as openings in the closing plate portion 38. In addition to the hole 74, a notch, a groove, or the like may be used as the opening.

  FIG. 7 is a schematic explanatory view of a shutter mechanism 80 constituting a vehicle fuel supply pipe device according to a fourth embodiment of the present invention.

  The holding member 30 constituting the shutter mechanism 80 includes a holding member 82 that holds the outer periphery of the nozzle 28a (28b). A slit 84 is formed on the inner peripheral surface 82 a of the holding member 82, thereby forming a blowout prevention unit.

  FIG. 8 is a schematic explanatory diagram of a shutter mechanism 90 constituting a vehicular fuel hot water pipe device according to a fifth embodiment of the present invention.

  The shutter mechanism 90 includes a shutter member 92 and forms a blowout prevention portion by forming an end surface 92a on the oil filler opening side of the shutter member 92 into a tapered portion or an arcuate portion.

  FIG. 9 is a schematic explanatory diagram of a shutter mechanism 100 constituting a vehicle fuel supply pipe device according to a sixth embodiment of the present invention.

  The shutter mechanism 100 includes a holding member 102 and a shutter abutting portion 104 that abuts the shutter member 54 at the time of closing at the tip of the holding member 102 on the fuel tank side. By forming a tapered portion or an arc-shaped portion in a part of the shutter contact portion 104, a blowout prevention portion is configured.

  In the third to sixth embodiments, the hole 74, the slit 84, the tapered or arcuate end surface 92a, and the tapered or arcuate part of the shutter contact portion 104 are provided as the blowout prevention unit. . For this reason, the momentum of the flow of the fuel F protruding from the tip of the nozzle 28a (28b) can be effectively reduced when the shutter is closed, and the fuel F can be prevented from being blown out from the fuel filler port 16. For example, the same effects as those of the first and second embodiments can be obtained.

  In the second to sixth embodiments, the blowout prevention units are individually configured, but two or more of these blowout prevention units may be arbitrarily combined. Similarly, in the first embodiment, the third to sixth embodiments can be arbitrarily combined.

Claims (7)

A filler pipe (14) for refueling a vehicle fuel tank (12);
A filler port (16) provided in the filler pipe (14) and into which a fuel gun (20a, 20b) is inserted;
A shutter mechanism (26) having an openable / closable shutter member (24a, 24b, 54, 72, 92) provided inside the fuel filler opening (16) and opened when the fuel gun (20a) is pushed. When,
A fuel refueling pipe device for vehicles comprising:
In the shutter mechanism (26), the fuel discharged from the fuel supply gun (20a, 20b) in the state where the shutter member (24a, 24b, 54, 72, 92) is closed closes the fuel supply port (16). A fuel refueling pipe device for vehicles, comprising a blowout prevention part for suppressing blowout from the outside to the outside.   The fuel supply pipe device for a vehicle according to claim 1, wherein the shutter mechanism (26) includes a shutter opening allowing portion that allows the fuel gun (20a) to pass according to an outer diameter of the fuel gun (20a). A fuel refueling pipe device for a vehicle, comprising:   The fuel supply pipe device for a vehicle according to claim 1 or 2, wherein the blowing prevention portion is provided on a surface of the shutter member (24a, 24b) on the fuel supply port (16) side, and the fuel supply gun (20b) A vehicle fuel supply pipe device comprising a recess (42) for forming an opening between the nozzle tip and the nozzle tip.   The fuel supply pipe device for a vehicle according to claim 1 or 2, wherein the blowing prevention portion includes an opening (74) penetrating the shutter member (72). The fuel supply pipe device for a vehicle according to claim 1 or 2, wherein when the fuel supply gun (20a, 20b) is inserted inward of the fuel supply port (16), an outer periphery of the fuel supply gun (20a, 20b) is formed. A holding member (82) for holding;
The blowout prevention part is configured by a slit (84) provided on an inner peripheral surface (82a) for holding an outer periphery of the fuel gun (20a, 20b) of the holding member (82). Fuel refueling pipe device.   The fuel supply pipe device for a vehicle according to claim 1 or 2, wherein the blowout prevention portion has an end surface (92a) on the fuel supply port (16) side of the shutter member (92) formed in a taper shape or an arc shape. A fuel refueling pipe device for vehicles characterized by comprising. The fuel supply pipe device for a vehicle according to claim 1 or 2, wherein when the fuel supply gun (20a, 20b) is inserted inward of the fuel supply port (16), an outer periphery of the fuel supply gun (20a, 20b) is formed. A holding member (102) for holding;
The holding member (102) has a shutter abutting portion (104) that abuts the shutter member (54) when closed at the tip of the fuel tank (12) side,
The fuel supply pipe device for a vehicle according to claim 1, wherein the blowing prevention portion is configured by a tapered portion or an arc-shaped portion configured as a part of the shutter contact portion (104).

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