JP2007261492A - Oil feeder for fuel tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil feeder 10 which is opened only by an appropriate feed nozzle FZ and a shutter mechanism 40 having compact constitution. <P>SOLUTION: The oil feeder 10 is equipped with a tank opening forming member 11 having a fuel passage 11P connected to a fuel tank through an introduction port 16e, and the shutter mechanism 40 which is opened/closed by the oil feed nozzle FZ. The shutter mechanism 40 is equipped with an opening/closing start-up mechanism 41 which is disposed facing to the introduction port 16e, and actuates to open the shutter 45 by being pushed with a tip end of the oil feed nozzle FZ, and the shutter 45 which is disposed in the tank opening forming member 11, and opens/closes the introduction port 16e by advancing/retracting in the radial direction approximately perpendicular to the insertion direction of the oil feed nozzle FZ. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a fuel tank fueling device for fueling a fuel tank through a fuel passage, and more particularly to a mechanism for opening and closing the fuel passage.

  As this type of conventional technology, as described in FIGS. 1 to 8 of Patent Document 1, a shutter mechanism that moves a shutter in a radial direction by operating a motor, and opening and closing by being pressed by a fueling nozzle A configuration including a flap valve is known. In this conventional technique, fuel is supplied by opening a shutter by opening a shutter by driving a motor by operating a switch or the like and further opening a fuel supply port by pushing a flap valve with a fuel supply nozzle.

  However, these conventional techniques have problems such as requiring a large space and an expensive drive mechanism.

US Pat. No. 6,968,874

  An object of the present invention is to provide a fuel supply device for a fuel tank including a shutter mechanism having a compact configuration based on solving the above-described problems of the prior art.

The present invention made to solve the above problems
In a fuel tank fueling device for opening and closing a passage for supplying fuel to a fuel tank,
A tank opening forming member having a fuel passage connected to the fuel tank via an inlet for inserting a fueling nozzle;
A shutter that is disposed within the tank opening forming member and that opens and closes the introduction port by moving forward and backward in a second direction substantially perpendicular to the first direction in which the fueling nozzle is inserted;
An opening / closing activation mechanism that is arranged facing the introduction port and that opens the shutter by being pushed by the tip of the fueling nozzle;
It is provided with.

  In the fuel tank fueling device according to the present invention, when the fuel nozzle is inserted toward the inlet of the tank opening forming member, the opening / closing activation mechanism arranged with the tip of the fuel lid facing the inlet is pushed. The opening / closing activation mechanism opens the shutter. The shutter opens and closes in the second direction substantially perpendicular to the first direction in which the fueling nozzle is inserted, thereby opening the introduction port, whereby fuel can be supplied from the fueling nozzle. At this time, since the shutter advances and retreats in the second direction, the space in the first direction for inserting the fueling nozzle may be narrow, and the space around the inlet can be saved. Further, since the shutter is opened only by the operation of inserting the fueling nozzle, no extra operation other than inserting the fueling nozzle is necessary, and the fueling workability is excellent.

  As a preferred aspect of the present invention, the opening / closing activation mechanism may include an introduction pressing portion arranged to be pressed when the outer diameter of the tip of the fueling nozzle is equal to or larger than a predetermined diameter. it can. With this configuration, when the outer diameter of the tip of the fueling nozzle exceeds a predetermined diameter, the shutter opens the introduction port, but when the outer diameter of the tip of the fueling nozzle does not exceed the predetermined diameter, the tip of the fueling nozzle is Since the introduction pressing portion of the opening / closing activation mechanism is not pushed, the shutter does not open the introduction port. Therefore, when the type of fuel differs depending on the outer diameter of the fueling nozzle, even if the fueling nozzle is mistakenly inserted, the shutter does not open, so that the wrong type of fuel is not supplied.

  As a preferred aspect of the present invention, the opening / closing activation mechanism may include a spring that urges the introduction pressing portion to return to the original position. With this configuration, when the oil supply nozzle is removed from the introduction port, the spring returns the introduction pressing portion to the original position, so that the mechanism for returning to the original state can be simplified. In this case, if the spring is configured to be a spring piece formed integrally with the introduction pressing portion and made of a cantilever, the number of parts can be reduced and the configuration can be simplified.

  Furthermore, as a preferable aspect of the present invention, the opening / closing activation mechanism may include a link mechanism that opens the shutter by moving the introduction pressing portion in the second direction. In this case, as a preferable aspect of the link mechanism, a configuration is adopted in which the amount of movement of the introduction pressing portion in the second direction is amplified in the second direction so as to open the shutter. Can do. With this configuration, the amount of movement of the introduction pressing portion is amplified and the shutter is opened, so that even if there is a variation in the position or size of the introduction pressing portion, the pressing operation by the fueling nozzle can be reliably received.

  As a preferred aspect for amplifying the movement amount of the introduction pressing portion to the link mechanism, the shutter includes a rotation support portion rotatably supported by the tank opening forming member at one end of the shutter. The link mechanism includes a link main body fixed to the introduction pressing portion and extending on both sides of the introduction pressing portion. The link main body is a support shaft having one end rotatably supported, and the other end is the shutter. The structure which is a connection end connected with the position close | similar to this rotation support part can be taken.

  As a preferred aspect of the present invention, the fuel tank is disposed on the fuel tank side from the shutter, has an insertion hole that constitutes a part of the fuel passage, and is disposed substantially parallel to the shutter so as to guide the shutter. The structure provided with the supporting member can be taken. With this configuration, even if the pressing force from the oil supply nozzle reaches the shutter from the introduction pressing portion, the support member supports the shutter, so that the shutter is not damaged and does not hinder the opening / closing operation.

Furthermore, as a preferred configuration of the present invention, a configuration may be adopted in which a flap valve mechanism is provided on the fuel tank side with respect to the shutter and opens the fuel passage when pressed by the fuel supply nozzle. According to this configuration, even if the shutter mechanism is damaged during a vehicle collision or the like, the flap valve mechanism is not damaged, so that high sealing performance can be maintained.
The means for sealing the fuel tank to the outside may be a means using the flap valve mechanism or a general-purpose fuel cap, or a structure in which a seal member is provided on the shutter.

  In order to further clarify the configuration and operation of the present invention described above, preferred embodiments of the present invention will be described below.

(1) Schematic Configuration of Fuel Tank Fueling Device FIG. 1 is a perspective view showing a rear portion of an automobile equipped with a diesel engine according to an embodiment of the present invention and showing a state in which a fueling lid is opened. An oil supply lid FL for supplying fuel (light oil) is supported at the rear part of the vehicle body so as to be openable and closable. The fuel filler lid FL is supported by a lid body FLa following the outer plate of the vehicle body so as to be opened and closed on the outer plate of the vehicle body via a hinge FLb. The space where the fueling lid FL is opened is a fueling chamber FR, and the fueling device 10 for the fuel tank supported by the substrate BP is disposed in the fueling chamber FR. The fuel tank refueling device 10 is a mechanism for supplying fuel to the fuel tank without using a fuel cap. After opening the fuel cover FL, the fuel passage is opened and closed by an external force from the fuel nozzle. This is a mechanism capable of supplying fuel from a fuel nozzle to a fuel tank. Hereinafter, a detailed configuration of the fuel tank fueling device will be described.

(2) Configuration and Operation of Each Part FIG. 2 is a cross-sectional view along the axial direction of the fueling device 10. In FIG. 2, a fuel tank refueling device 10 includes a tank opening forming member 11 having a fuel passage 11P connected to the fuel tank, a shutter mechanism 40 for opening and closing the fuel passage 11P, and a flap valve mechanism 50. .

(2) -1 Tank opening forming member 11
The tank opening forming member 11 is a pipe body having a fuel passage 11P, a connection pipe 12 connected to a fuel tank (not shown), a pipe body 14 connected to the upper end of the connection pipe 12, and a pipe body 14 An opening forming member 16 fixed to the upper portion of the pipe body 14 and a support 20 mounted in the pipe body 14 are provided. The connecting pipe 12 includes a reduced diameter portion 12a that gradually reduces the diameter of the fuel tank side of the pipe body 14, and a straight pipe portion 12b that is connected to the reduced diameter portion 12a, and these are integrally formed. The pipe body 14 includes a tube body 14a connected to the upper portion of the reduced diameter portion 12a and a flange portion 14b formed on the upper portion of the tube body 14a. The inside of the flange portion 14b is an inlet 14c that constitutes a part of the fuel passage 11P.

  The opening forming member 16 is mounted on the upper portion of the pipe body 14 and includes a cylindrical side wall portion 16a and an introduction portion 16b inclined toward the center, and the pipe is inserted into the engagement hole 16c at the lower portion of the side wall portion 16a. The pipe 14 is mounted by engaging an engaging claw 14d formed on the upper part of the main body 14. The introduction portion 16b of the opening forming member 16 includes an inclined surface 16d. The inclined surface 16d is formed so that the center portion is recessed. An introduction port 16e is formed at the center of the introduction portion 16b.

  The support body 20 is a member that is fitted into the pipe body 14 and supports a part of the flap valve mechanism 50, and includes a support body 21b having a passage 21a that forms a part of the fuel passage 11P, and a support body. An opening 21c that is formed in the lower part of 21b and forms part of the fuel passage 11P, and a guide 21d are provided. The guide portion 21d is formed of an inclined rib for guiding the fuel supply nozzle from the passage 21a to the opening portion 21c.

(2) -2 Shutter mechanism 40
3 is an enlarged sectional view of the shutter mechanism 40 of FIG. 2, FIG. 4 is a sectional view taken along line 4-4 of FIG. 3, and FIG. 5 is an exploded sectional view of the shutter mechanism 40. The shutter mechanism 40 is a mechanism for opening the introduction port 16e by being pushed by the tip of the fuel supply nozzle FZ. The shutter mechanism 40 has, as main components, an opening / closing activation mechanism 41 that is pushed by the tip of the fueling nozzle FZ, a shutter 45 that opens and closes the introduction port 16e, and a lower part of the shutter 45 and is fixed to the tank opening forming member 11. The support member 48 is provided.

  The opening / closing activation mechanism 41 is arranged facing the introduction port 16e, and is a mechanism that opens the shutter 45 by being pushed by the tip of the fuel supply nozzle FZ. Note that two sets of the opening / closing activation mechanisms 41 are arranged around the axis of the fuel passage 11P. However, for the sake of simplicity of explanation, one set will be mainly described. In FIG. 5, the opening / closing activation mechanism 41 includes an introduction pressing portion 42, a link mechanism 43, and a spring 44. The introduction pressing part 42 includes a pressing body 42a and a pressing slope 42b that is inclined toward one axial center side of the pressing body 42a and downward. The pressing slope 42b is arranged so as to be pressed at the tip of the fuel nozzle FZ when the outer diameter of the tip of the fuel nozzle FZ is equal to or larger than a predetermined diameter. That is, as shown in FIG. 3, the inner diameter of the introduction port 16e formed at the opposed inner ends of the introduction pressing portion 42 is D0, the outer diameter of the tip of the light oil supply nozzle FZ (a) is Da, and the oil supply for gasoline. When the nozzle FZ (b) is Db, Db <D0 <Da is set. For example, the inner diameter D0 is set to 22 mm, the outer diameter Da is set to 25 mm, and the outer diameter Db is set to 20 mm.

  Returning to FIG. 5, the link mechanism 43 is a mechanism that opens the shutter 45 by the movement of the introduction pressing portion 42 in the radial direction (second direction), and an arc extending from the connecting lower portion 42 c of the introduction pressing portion 42 to both sides. The arm-shaped link main body 43a is provided. A support shaft 43b is formed at one end of the link body 43a, and the support shaft 43b is rotatably supported in a bearing hole 16f (FIG. 4) formed in the tank opening forming member 11. A connecting end 43c is formed at the other end of the link main body 43a. A connecting shaft 43d that cooperates with the shutter 45 is formed at the connecting end 43c.

  The spring 44 is a resin spring that urges the introduction pressing portion 42 in a direction to return it to the original position. The spring 44 includes a spring piece 44 a that is an arc-shaped cantilever beam that spreads from the connection rear portion 42 d of the introduction pressing portion 42 to both sides. Is formed. The spring piece 44a is formed so as to contact the inner wall (FIG. 3) of the tank opening forming member 11 and bend to increase the urging force when the introduction pressing portion 42 is pressed in the radial direction by the fuel supply nozzle FZ.

  Two sets of shutters 45 are arranged in the tank opening forming member 11 centering on the shaft center, and are mechanisms for opening and closing the inlet 16e by moving back and forth in the radial direction in conjunction with the opening and closing activation mechanism 41. The shutter 45 includes a semicircular shutter main body 45a. One end of the shutter main body 45 a is a rotation support portion 45 b, and the shutter 45 rotates with respect to the support member 48 by inserting a support shaft 48 b erected on the support member 48 into the support hole 45 c. It is supported movably. In the shutter 45, a link long hole 45d is formed close to the rotation support portion 45b. The link long hole 45d protrudes so that the connecting shaft 43d of the link mechanism 43 can slide. Therefore, the connecting shaft 43d slides through the long link hole 45d and engages at the hole end of the long link hole 45d by the rotation of the link body 43a, thereby rotating the shutter 45 around the rotation support portion 45b. Further, as shown in FIG. 3, a recess 45e is formed on the upper surface of one of the shutters 45 and 45, and a recess 45f is formed on the lower surface of the other, so that the recesses 45e and 45f can be fitted to each other. Thus, the shutters 45, 45 increase the contact surface to enhance the unity. Each of the shutters 45, 45 shown in FIG. 5 is formed with an arc-shaped cutout 45g, and the opening area is increased when the shutter 45 is opened.

  The support member 48 is disposed on the fuel tank side from the shutter 45, has an insertion hole 48a constituting a part of the fuel passage 11P, and is disposed substantially parallel to the shutter 45 so as to guide the shutter 45. .

  Next, the operation of the shutter mechanism 40 will be described. FIGS. 6 and 7 are explanatory diagrams for explaining the operation of the shutter mechanism 40 at the position of the introduction pressing portion 42, and FIGS. 8 and 9 are explanatory diagrams for explaining the operation of the shutter mechanism 40 at the position of the shutter 45. As shown in FIG. 6, when the oil supply nozzle FZ is inserted from the introduction port 16 e of the opening forming member 16, the tip of the oil supply nozzle FZ pushes the pressing slope 42 b of the introduction pressing portion 42 of the opening / closing activation mechanism 41. When the introduction pressing portion 42 receives a radial force from the oil supply nozzle FZ, the spring 44 integral with the introduction pressing portion 42 is pressed in the radial direction. As shown in FIG. 7, the introduction pressing portion 42 moves in the radial direction while receiving a reaction force from the inner wall of the opening forming member 16 at a portion of the spring piece 44 a of the spring 44. The link mechanism 43 integrated with the introduction pressing portion 42 rotates about the support shaft 43b, and the connection shaft 43d of the connection end 43c rotates. When the connecting shaft 43d slides in the link long hole 45d and hits the hole end, the shutter 45 is rotated with respect to the support shaft 48b of the support member 48 around the rotation support portion 45b as shown in FIGS. Let By such an opening operation of the shutter 45, the introduction port 16e is opened.

  Here, an operation of amplifying the moving amount of the shutter 45 when the introduction pressing portion 42 is pressed by the fuel supply nozzle FZ will be described. As shown in FIG. 10, the distance between the center of the pressing slope 42b of the introduction pressing portion 42 and the support shaft 43b of the link mechanism 43 is R1, the distance between the support shaft 43b of the link mechanism 43 and the connecting shaft 43d is L1, and The distance between the rotation support portion 45b of the shutter 45 and the long link hole 45d is L2, and the distance from the rotation support portion 45b to the center of the pressing slope 42b of the introduction pressing portion 42 is R2. Now, when the pressing slope 42b of the introduction pressing portion 42 is pressed by the oil supply nozzle FZ by a distance d0 (for example, 2.5 mm), the distance d0 that the connecting shaft 43d of the link mechanism 43 moves is proportional to L1 / R1. When L1 / R1 = 2, the distance that the connecting shaft 43d moves is 5 mm. In addition, the distance d1 at which the shutter 45 moves in the opening direction at the center of the shutter 45 in conjunction with the connecting shaft 43d is proportional to R2 / L2, and is 15 mm when R2 / L1 = 3. Therefore, when the pressing slope 42b of the introduction pressing portion 42 is pressed by 2.5 mm, the shutter 45 is amplified to a moving amount of 15 mm and greatly opens the introduction port.

(2) -3 Flap valve mechanism 50
FIG. 11 is a cross-sectional view showing the flap valve mechanism 50. The flap valve mechanism 50 includes an opening / closing member 51, a spring 52, and a gasket GS. The opening / closing member 51 is a disk-shaped member that is pivotally supported by the support main body 21b of the support 20 with a support shaft 51a and opens and closes the injection port 14c. The spring 52 is a string-wound spring, and its coil-shaped support portion 52a is supported by the support body 21b and biases the opening / closing member 51 in the closing direction. That is, the pressing end 52b of the spring 52 is in contact with the spring pressing portion 51b of the opening / closing member 51, and the support end 52c, which is the other end, is supported in contact with the inner wall of the support body 21b. Is energized in the closing direction. The spring pressing portion 51b of the opening / closing member 51 has a central portion protruding in a mountain shape, and the outer periphery thereof is a recess, and the spring 52 uniformly presses the opening / closing member 51 upward to make the seal surface pressure by the gasket GS uniform. Acts like
The gasket GS is formed from a rubber material to have a C-shaped cross section, and is press-fitted and fixed to a seal holding portion 14e formed on the inner peripheral portion of the flange portion 14b of the pipe body 14, and is sealed by being pressed by the opening / closing member 51. In this state, the inlet 14c is closed.

(3) Opening / Closing Operation of Fuel Tank Fuel Supply Device (3) -1 Opening Operation As shown in FIG. 1, when the fuel supply lid FL is opened, the fuel tank fuel supply device 10 arranged in the fuel supply chamber FR appears. As shown in FIG. 3, when the oil supply nozzle FZ is inserted from the introduction port 16 e of the opening forming member 16, it hits the pressing slope 42 b of the introduction pressing portion 42 of the shutter mechanism 40 and moves in the radial direction against the urging force of the spring 44. . In conjunction with this, the link mechanism 43 and the shutter 45 are rotated to open the introduction port 16e. Further, as shown in FIG. 12, when the fuel supply nozzle FZ is pushed in, the opening / closing member 51 of the flap valve mechanism 50 is pushed against the urging force of the spring 52, and the opening / closing member 51 rotates around the support shaft 51a. Then, the inlet 14c is opened. When the refueling nozzle is inserted from the inlet 14c through the opening 21c, the fuel passage 11P is refueled. As described above, when the shutter mechanism 40 is pushed by the fuel supply nozzle FZ and the opening / closing member 51 of the flap valve mechanism 50 is further pushed, the opening / closing member 51 can open the inlet 14c to supply oil.

(3) -2 Closing Operation When refueling is completed and the fuel supply nozzle FZ is removed from the injection port 14c, the opening / closing member 51 of the flap valve mechanism 50 closes the injection port 14c by the restoring force of the spring 52, and the shutter 45 is further moved to the spring 44. The inlet 16e is closed by the restoring force of the oil, and the fueling lid FL (FIG. 1) is further closed.

(4) Operation and effect of fuel tank fueling device The fuel tank fueling device 10 according to the above embodiment provides the following operational effects.

(4) -1 When the opening / closing activation mechanism 41 of the shutter mechanism 40 is pushed by the tip of the fueling nozzle FZ, it advances and retreats in a radial direction (second direction) substantially perpendicular to the insertion direction (first direction) of the fueling nozzle FZ. As a result, the introduction port 16e is opened, so that the space in the insertion direction of the fuel supply nozzle FZ may be narrow, and the space around the introduction port 16e can be saved.

(4) -2 When the fueling nozzle FZ is inserted for fueling, the shutter 45 of the shutter mechanism 40 is opened, and the opening / closing member 51 of the flap valve mechanism 50 is also opened, so the fuel cap is removed with a screw. Compared to the type, there is no problem with the location of the fuel cap removed during refueling, and it has excellent operability.

(4) -3 Since the introduction pressing portion 42 and the shutter 45 constituting the shutter mechanism 40 are slidable in the radial direction, the fuel supply nozzle FZ needs to have a long distance before reaching the flap valve mechanism 50. Therefore, the insertion work is easy and the configuration around the fuel filler port can be made compact.

(4) -4 As shown in FIG. 3, the opening / closing activation mechanism 41 includes the introduction pressing portion 42 that is arranged to be pressed when the outer diameter of the tip of the fueling nozzle FZ is equal to or larger than a predetermined diameter. In the case of the oil supply nozzle FZ (a) for light oil, the shutter 45 opens the introduction port 16e, but in the case of the oil supply nozzle FZ (b) for gasoline, the shutter 45 does not open the introduction port 16e. Therefore, when the type of fuel differs depending on the outer diameter of the fuel supply nozzle FZ, even if the fuel supply nozzle FZ is mistakenly inserted, the shutter 45 does not open, so that the wrong type of fuel is not supplied.

(4) -5 As shown in FIG. 5, the opening / closing activation mechanism 41 includes a spring 44 that urges the introduction pressing portion 42 in a direction to return it to its original position, so that the fuel supply nozzle FZ is removed from the introduction port 16e. The spring 44 returns the introduction pressing portion 42 to the original position, and the mechanism for returning to the original state can be simplified. Moreover, since the spring 44 is a spring piece 44a formed integrally with the introduction pressing portion 42 and made of a cantilever, it has a simple configuration without increasing the number of parts.

(4) -6 Since the shutter 45 opens the shutter 45 when the introduction pressing portion 42 is pressed by the fuel supply nozzle FZ, there is no need to provide a mechanical mechanism for opening and closing, or a driving mechanism such as a switch or a motor. The configuration is simple.

(4) -7 The link mechanism 43 of the opening / closing activation mechanism 41 amplifies the amount of movement of the introduction pressing portion 42 and opens the shutter 45. Therefore, even if the position where the introduction pressing portion 42 is installed and its dimensions vary. The opening / closing operation by the fueling nozzle FZ can be reliably transmitted to the shutter 45.

(4) -8 Since the support member 48 is disposed substantially parallel to the shutter 45 so as to guide the shutter 45, the shutter is not affected even when the pressing force from the fuel supply nozzle FZ reaches the shutter 45 from the introduction pressing portion 42. No damage to 45 and no hindrance to opening and closing operations.

(4) -9 As shown in FIG. 2, the shutter mechanism 40 is assembled to the opening forming member 16, while the flap valve mechanism 50 is assembled to the pipe body 14 and the support body 20. By engaging the joint hole 16c and the engaging claw 14d of the pipe body 14 so as to be detachably integrated, the assembling work and replacement to the tank opening forming member 11 are facilitated. Moreover, even if the shutter mechanism 40 is damaged during a vehicle collision or the like, the flap valve mechanism 50 is not damaged, so that the sealing performance can be maintained.

(4) -10 Even if a gasoline refueling nozzle is erroneously inserted into the inlet 16e, it is blocked by the shutter mechanism 40 and does not directly contact the flap valve mechanism 50, so that the flap valve mechanism 50 is not damaged. Assuming such a situation, it is not necessary to strengthen the structure of the flap valve mechanism 50 itself.

  The present invention is not limited to the above-described embodiments, and can be implemented in various modes without departing from the scope of the invention.

It is a perspective view which shows the state which opened the oiling lid of the rear part of the vehicle which concerns on one Example of this invention. It is sectional drawing along the axial direction of the oil supply apparatus. It is sectional drawing which expands and shows the shutter mechanism of FIG. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. It is sectional drawing which decomposed | disassembled the shutter mechanism. It is explanatory drawing explaining operation | movement of a shutter mechanism. It is explanatory drawing explaining the operation | movement following FIG. It is explanatory drawing explaining operation | movement of a shutter mechanism. It is explanatory drawing explaining the operation | movement following FIG. It is explanatory drawing explaining the effect | action of a shutter mechanism. It is sectional drawing which shows a flap valve mechanism. It is explanatory drawing explaining the oil supply operation | movement of a fuel supply apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Oil supply apparatus 11 ... Tank opening formation member 11P ... Fuel passage 12 ... Connection pipe 12a ... Diameter reduction part 12b ... Straight pipe part 14 ... Pipe main body 14a ... Tube 14b ... Flange 14c ... Inlet 14d ... Engaging claw 14e ... Seal holding part 16 ... Opening forming member 16a ... Side wall 16b ... Introducing part 16c .. .. engaging hole 16d ... inclined surface 16e ... introduction port 16f ... bearing hole 20 ... support 21a ... passage 21b ... support body 21c ... opening 21d ... guide Part 40 ... Shutter mechanism 41 ... Opening / closing start mechanism 42 ... Introduction pressing part 42a ... Pressing body 42b ... Pressing slope 42c ... Lower connection part 42d ... Rear connection part 43 ... Link Mechanism 43a ... Link body 43b ... Support shaft 43c ... Connection end 43d ... Connection shaft 44 ... Spring 44a ... Spring piece 45 ... Shutter 45a ... Shutter body 45b .. .Rotating support 45c ... Support hole 45d ... Link long hole 45e, 45f ... Recess 45g ... Notch 48 ... Support member 48a ... Insertion hole 48b ... Support shaft 50 ... Flap Valve mechanism 51 ... Opening / closing member 51a ... Support shaft 51b ... Spring pressing part 52 ... Spring 52a ... Supporting part 52b ... Pressing end 52c ... Supporting end FL ... Fueling lid FLa ... Lid body FLb ... Hinge BP ... Substrate FR ... Lubrication chamber GS ... Gasket FZ ... Lubrication nozzle

Claims (9)

In a fuel tank fueling device for opening and closing a passage for supplying fuel to a fuel tank,
A tank opening forming member (11) having a fuel passage (11P) connected to the fuel tank via an inlet (16e) for inserting a fueling nozzle (FZ);
A shutter (45) which is disposed in the tank opening forming member (11) and opens and closes the introduction port (16e) by moving forward and backward in a second direction substantially perpendicular to the first direction in which the fuel supply nozzle (FZ) is inserted. When,
An opening / closing activation mechanism (41) disposed facing the introduction port (16e) and opening the shutter (45) by being pushed by the tip of the fueling nozzle (FZ);
A fuel tank refueling device comprising: The fuel tank refueling device according to claim 1,
The opening / closing activation mechanism (41) is a fuel tank fueling device including an introduction pressing portion (42) disposed so as to be pressed when the outer diameter of the tip of the fueling nozzle (FZ) is greater than or equal to a predetermined value. . The fuel tank refueling device according to claim 2,
The open / close activation mechanism (41) is a fuel tank fueling device comprising a spring (44) that urges the introduction pressing portion (42) to return to its original position. The fuel tank refueling device according to claim 3,
The fuel supply device for a fuel tank, wherein the spring (44) is a spring piece (44a) formed integrally with the introduction pressing portion (42) and made of a cantilever. The fuel tank refueling device according to any one of claims 2 to 4,
The fuel supply device for a fuel tank, wherein the opening / closing activation mechanism (41) includes a link mechanism (43) that opens the shutter (45) by moving the introduction pressing portion (42) in the second direction. The fuel tank refueling device according to claim 5,
The link mechanism (43) includes a fuel tank connected to amplify the movement amount of the introduction pressing portion (42) in the second direction in the second direction to open the shutter (45). Refueling device. The fuel tank refueling device according to claim 6,
The shutter (45) includes, at one end of the shutter (45), a rotation support portion (45b) that is rotatably supported by the tank opening forming member (11).
The link mechanism (43) includes a link body (43a) fixed to the introduction pressing portion (42) and extending on both sides of the introduction pressing portion (42), and one end of the link body (43a) is rotated. A fuel tank fueling device that is a support shaft (43b) that is movably supported and whose other end is a connection end (43c) connected to a position close to the rotation support portion (45b) of the shutter (45). . The fuel tank refueling device according to claim 1,
The shutter (45) is disposed on the fuel tank side and has an insertion hole (48a) that constitutes a part of the fuel passage (11P). The shutter (45) and the shutter (45) are arranged so as to guide the shutter (45). A fuel tank fueling device comprising a support member (48) arranged substantially in parallel. The fuel tank fueling device according to any one of claims 1 to 8,
Further, a fuel tank provided with a flap valve mechanism (50) that is disposed on the fuel tank side with respect to the shutter (45) and opens the fuel passage (11P) when pressed by the fuel supply nozzle (FZ). Refueling device.

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