JP2010030542A - Opening/closing device for fuel tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening/closing device for a fuel tank capable of smoothly and largely opening a shutter by efficiently utilizing insertion force of an oil feed nozzle FZ. <P>SOLUTION: The opening/closing device for the fuel tank is provided with: the shutter 30 for opening/closing an insertion hole 22a; an operation member 41 provided movably in a first direction; a nozzle restriction mechanism 56 having an opening/closing pressing member 57 for transmitting movement force in the first direction of the oil feed nozzle FZ when it is pressed to a distal end of the oil feed nozzle FZ such that the operation member 41 moves the movement force in the first direction; and a cam mechanism 45 for converting the movement force in the first direction of the operation member 41 to force for turning the shutter 30 such that the shutter 30 opens the insertion hole 22a. The opening/closing pressing member 57 allows the oil feed nozzle FZ to be inserted to the insertion hole 22a by retreating it from a position facing to the insertion hole 22a when the operation member 41 is moved to a predetermined position. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fuel tank opening and closing device for opening a shutter using an insertion force of a fuel nozzle and supplying fuel to a fuel tank.

  As a conventional technology of this type, as described in Patent Document 1, a shutter that moves in the radial direction of the fuel passage, an operating ring that is pressed by a fueling nozzle, and a shutter that opens and closes in conjunction with the operating ring. A configuration including a link mechanism is known. In this configuration, by pushing the operating ring at the tip of the fueling nozzle, the diameter of the working ring is expanded, the amount of movement due to the expanded diameter is amplified by the link mechanism, the shutter is opened, and the fueling nozzle can be inserted. Yes.

  However, in the conventional apparatus, the movement amount due to the diameter expansion of the operating ring is only a few millimeters, and a link mechanism with a large amplification factor is required to open the shutter with the movement amount. For this reason, there is a problem that even if the link mechanism or the shutter is slightly frozen, there is a problem in the opening / closing operation of the shutter due to the frictional force.

Special table 2007-518619

  An object of the present invention is to provide a fuel tank opening and closing device capable of opening the shutter smoothly and widely by efficiently using the insertion force of the fueling nozzle FZ in consideration of solving the above-described problems of the conventional technology. And

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

[Application Example 1]
Application Example 1 is a fuel tank opening and closing device that opens and closes a passage for supplying fuel to the 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 in the tank opening forming member and that opens and closes the inlet by rotating in a second direction substantially perpendicular to the first direction in which the fuel nozzle is inserted;
An actuating member disposed on the insertion side of the fueling nozzle with respect to the inlet and provided to be movable in the first direction;
A nozzle regulating mechanism which is connected to the operating member, receives a moving force in the first direction by the refueling nozzle, and has an opening / closing pressing member which transmits the moving force to the operating member;
A cam mechanism that converts a force of moving the operating member in the first direction into a force of rotating the shutter so as to open the inlet;
With
The opening / closing pressing member is configured to be retracted from a position facing the inlet so as to allow the oiling nozzle to be inserted into the inlet when the operating member moves to a predetermined position. ,
It is characterized by.

In the fuel tank opening and closing device according to the present invention, when the fuel supply nozzle is inserted toward the inlet of the tank opening forming member, the opening and closing pressing member of the nozzle regulating mechanism having the tip of the fuel nozzle connected to the operating member is pushed. The actuating member moves in the first direction which is the insertion direction, and rotates the shutter in the second direction substantially perpendicular to the first direction via the cam mechanism, thereby opening the injection port. can do.
That is, the opening / closing pressing member of the nozzle regulating mechanism receives the insertion force of the oil supply nozzle and transmits it to the operating member, and the cam mechanism converts the moving force of the operating member into a large force for opening the shutter, and the insertion of the operating member Depending on the stroke length in the direction, the opening degree in the rotation direction of the shutter can be increased. Therefore, even if the frictional force is increased due to icing or the like on the shutter, the shutter can be reliably opened and closed. In addition, since the cam mechanism transmits the insertion force of the fueling nozzle directly to the shutter, the mechanical strength is high and the durability is excellent.

In addition, when the fueling nozzle is inserted for fueling, the shutter of the shutter mechanism opens and the opening and closing member of the flap valve mechanism opens the inlet. There is no problem with the location of the fuel cap, and it has excellent operability.
The inlet that is opened and closed by the shutter may be disposed in the fuel passage, and may be disposed on the upstream side of the flap valve mechanism 60 or may be used as the inlet of the flap valve mechanism 60.

[Application Example 2]
In application example 2, the shutter includes a disc-shaped shutter body that opens and closes the injection port, and a rotation shaft formed at an end of the shutter body, and rotates about the rotation shaft. Thus, the shutter main body is configured to open and close the injection port.

[Application Example 3]
In Application Example 3, the tank opening forming member includes a disk-shaped support plate disposed in the second direction above the inlet, and a support shaft erected in the first direction from the support plate. And a support body having a support hole for supporting the end of the rotation shaft, and the operating member is supported by the support shaft and the rotation shaft so as to be movable in the first direction. . With this configuration, a mechanism for moving the operating member can be easily configured.

[Application Example 4]
Application Example 4 is a configuration in which the cam mechanism includes an upper cam portion formed at a lower portion of the operating member and the lower cam portion formed at the rotating shaft.

[Application Example 5]
Application Example 5 is a configuration in which the lower cam portion includes a lower cam surface that is an inclined surface spirally formed on the outer peripheral portion of the rotation shaft. With this configuration, the cam mechanism can be easily realized, and when the moving force increases during freezing or the like, the rotation can be operated in a balanced manner.

[Application Example 6]
In Application Example 6, the opening / closing pressing member is supported by the operating member so as to be slidable in the second direction, and when the operating member reaches a predetermined position, the opening / closing pressing member is inserted into an engagement hole provided in the tank opening forming member. It is the structure provided so that it may avoid.

[Application Example 7]
Application Example 7 includes a flap valve mechanism that is disposed 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 Opening / Closing Device FIG. 1 is a perspective view showing a rear part 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. A space where the fueling lid FL is opened is a fueling chamber FR, and a fuel tank opening / closing device 10 supported by the substrate BP is disposed in the fueling chamber FR. The fuel tank opening and closing device 10 is a mechanism for supplying fuel to the fuel tank without using a fuel cap. After opening the fueling lid FL, the fuel tank opening and closing device 10 opens and closes the fuel passage with an external force from the fueling nozzle. This is a mechanism capable of supplying fuel from a fuel nozzle to a fuel tank. Hereinafter, the detailed configuration of the fuel tank opening and closing device will be described.

(2) Configuration and Operation of Each Part FIG. 2 is a cross-sectional view along the axial direction of the switchgear 10. In FIG. 2, a fuel tank opening / closing device 10 includes a tank opening forming member 11 having a fuel passage 11P connected to a fuel tank (not shown), a shutter mechanism 20 for opening / closing the fuel passage 11P, and a flap valve mechanism 60. It has.

(2) -1 Tank opening forming member 11
The tank opening forming member 11 is a pipe body having a fuel passage 11P, and is attached to the connecting pipe 12 connected to the fuel tank, the opening forming member 16 fixed to the upper part of the connecting pipe 12, and the upper part of the connecting pipe 12. The injection port forming member 18 is provided.

  The connecting pipe 12 includes a reduced diameter portion 12a that is gradually reduced in diameter on the fuel tank side, and a straight pipe portion 12b that is connected to the reduced diameter portion 12a, and these are integrally formed. The opening forming member 16 is attached to the upper part of the connecting pipe 12, and includes a cylindrical side wall part 16a and an upper surface part 16b integrally formed on the upper part of the side wall part 16a. The lower part of the side wall part 16a is changed from a slightly enlarged diameter part 16e to a lower cylindrical part 16f. The opening forming member 16 is secured to the connecting pipe 12 by being pulled out by a claw 16 g on the inner wall of the lower cylindrical portion 16 f and a skirt portion 12 c on the upper outer periphery of the connecting pipe 12. An introduction port 16c is formed at the center of the upper surface portion 16b.

  The inlet forming member 18 is a member that is fixed to the upper part of the connecting pipe 12 and supports a part of the flap valve mechanism 60, and has a disk part 18b having an inlet 18a that forms part of the fuel passage 11P. And a fitting portion 18c that protrudes in a cylindrical shape from the outer peripheral portion of the disc portion 18b and fits into the connecting pipe 12.

(2) -2 Shutter mechanism 20
FIG. 3 is a cross-sectional view showing the shutter mechanism 20 of FIG. The shutter mechanism 20 is a mechanism that performs an opening operation by being pushed by the tip of the fueling nozzle. As a main configuration, the shutter mechanism 20 is supported by the inlet forming member 18 and is rotatably supported by the support 21. And an operating mechanism 40 that is supported by the support 21 so as to be movable up and down and rotates the shutter 30.

  FIG. 4 is an exploded perspective view of the shutter mechanism 20. The support 21 includes a disk-shaped support plate 22, a support shaft 24 erected on the support plate 22, and a guide member 26 erected on the support plate 22. As shown in FIG. 2, the outer peripheral portion of the support plate 22 is fixed by being sandwiched between the skirt portion 12 c of the connecting pipe 12 and the enlarged diameter portion 16 e of the opening forming member 16. The outer peripheral portion of the support plate 22 may take various fixing means such as welding to the skirt portion 12c or the opening forming member 16. The support plate 22 is formed with an insertion hole 22a that has substantially the same outer diameter as the injection port 18a (FIG. 3) and into which the oil supply nozzle is inserted.

  The shutter 30 is a mechanism that opens and closes the insertion hole 22 a by rotating in conjunction with the operation mechanism 40 around one end of the support 21, and includes a disk-shaped shutter body 31 and a spring 36. Yes. One end of the shutter body 31 is an extended portion 32, and a rotating shaft 33 is erected on the extended portion 32. The lower end of the rotation shaft 33 is inserted into the support hole 22b of the support plate 22, and the upper end thereof is supported by the bearing recess 16h on the lower surface of the upper surface portion 16b (see FIG. 2) of the opening forming member 16. The shutter 30 is supported so as to be rotatable with respect to the support 21. The spring 36 is a string-wound spring attached to the lower part of the rotating shaft 33 and urges the shutter body 31 in the closing direction.

  The actuating mechanism 40 is arranged facing the introduction port 16c, and is a mechanism that lowers the shutter 30 by being pushed by the tip of the fueling nozzle and opens the shutter 30, and the actuating member 41, the spring 44, and the cam mechanism 45. And a nozzle detection mechanism 51 and a nozzle restriction mechanism 56.

  FIG. 5 is a perspective view showing the operating mechanism 40. The operating member 41 has an operating member main body 42 that is a frame. The operating member main body 42 is formed with an insertion hole 42a into which the oil supply nozzle is inserted. An inclined surface 42b is formed at the peripheral edge of the insertion hole 42a. The inclined surface 42b guides the oil supply nozzle to the insertion hole 42a. Support bases 43 and 43 are formed at the end of the operating member main body 42. Guide holes 43a and 43a are formed through the support bases 43 and 43, respectively. The support shaft 24 penetrates through one guide hole 43a, and the rotation shaft 33 (FIG. 4) penetrates through the other guide hole 43a, and supports the operating member 41 so that it can be raised and lowered while maintaining its horizontal posture. is doing. The spring 44 is externally mounted on the support shaft 24, is supported by the spring support recess 43 b at the lower end of the support base 43, and the upper surface of the support plate 22, and applies an upward spring force to the operating member 41.

  FIG. 6 is an explanatory view for explaining the cam mechanism 45. The cam mechanism 45 is a mechanism that converts the descending force of the operating member 41 into a force for rotating the shutter 30. The cam mechanism 45 rotates the shutter 30 and the upper cam portion 46 that projects from the lower portion of the support base 43. And a lower cam portion 34 formed on the outer peripheral portion of the shaft 33. The lower portion of the upper cam portion 46 is formed on the upper cam surface 46a, and the upper surface of the lower cam portion 34 is formed on the lower cam surface 34a. The lower cam surface 34 a is formed as a spiral inclined surface along the outer periphery of the rotation shaft 33. Therefore, when the operating member 41 is lowered, the cam mechanism 45 is configured so that the upper cam surface 46a follows the lower cam surface 34a and the upper cam portion 46 of the operating member 41 pushes the lower cam portion 34, so that the rotation shaft 33 is centered. Further, the shutter body 31 rotates against the spring force of the spring 36.

FIG. 7 is an explanatory diagram for explaining the nozzle detection mechanism 51. The nozzle detection mechanism 51 is a mechanism that releases the locked state of the operating mechanism 40 when pressed by the oil supply nozzle FZ having a predetermined outer diameter, and includes a nozzle detection member 52 attached to the lower portion of the operating member 41 and an opening formation. An engaging portion 16d formed as a recess is formed on the member 16. The nozzle detection member 52 is formed in the vicinity of the introduction pressing portions 53, 53, the introduction pressing portions 53, 53 facing the introduction port 16 c and disposed on both sides thereof, the connecting arm 54 connecting the introduction pressing portions 53, 53. The lock portions 55 and 55 are provided, and these are integrally formed. As shown in FIG. 5, the connecting arm 54 of the nozzle detection member 52 includes two L-shaped holding members 42 d and 42 d that protrude downward from a lower portion of one side of the operating member main body 42. It is hold | maintained along the lower surface of this. Each introduction pressing portion 53 includes a pressing body 53a and a pressing slope 53b that is inclined from the pressing body 53a toward the introduction port 16c and downward. The pressing slope 53b is arranged to be pressed at the tip of the oil supply nozzle FZ when the outer diameter of the tip of the oil supply nozzle FZ is equal to or larger than a predetermined diameter. That is, the inner diameter of the insertion hole 42a formed at the inner end facing the introduction pressing portions 53, 53 is D0, the outer diameter of the tip of the light oil supply nozzle FZ (a) is Da, and the gasoline supply nozzle FZ (b ) Is Db, Db <D0 <Da is set. For example, the outer diameter Db is set to 20 mm, the inner diameter D0 is set to 22 mm, and the outer diameter Da is set to 25 mm. The connecting arm 54 is formed in a meandering shape, and acts as a spring by connecting the introduction pressing portion 53. The lock portion 55 is a portion that is engaged with and disengaged from the engagement portion 16d formed on the inner peripheral portion of the opening forming member 16, and is rotatably supported by a support shaft 42c protruding from the lower surface of the operation member 41. By rotating around the support shaft 42c, the position is switched between the locked position and the unlocked position. With the configuration of the nozzle detection mechanism 51, when the oil supply nozzle FZ (a) is inserted into the insertion hole 42a, the pressing inclined surface 53b of the introduction pressing portion 53 is pressed, and the lock portion 55 rotates about the support shaft 42c. By detaching from the engaging portion 16d, the operating member 41 can be lowered.
Even if the inner diameter D0 of the insertion hole 42a is smaller than the outer diameter Db of the gasoline fuel nozzle FZ (b), the outer periphery of the tip of the fuel nozzle FZ (b) presses the pressing slope 53b. As long as the lock portion 55 does not come out of the engagement portion 16d and cannot be refueled, a certain size range is allowed.

  FIG. 8 is a cross-sectional view showing the upper part of the shutter mechanism 20 of FIG. The nozzle restricting mechanism 56 is a mechanism that allows the fuel supply nozzle to be inserted into the injection port 18a when the operating member 41 of the operating mechanism 40 reaches a predetermined lowered position. The opening / closing pressing member 57 and the opening / closing pressing member And an engagement hole 26 b formed in the guide member 26. The opening / closing pressing member 57 includes an inclined surface 57a and a return spring 57b (see FIG. 4). The opening / closing pressing member 57 is housed in a housing hole 43d in the side surface 43c formed at the lower part of the end of the actuating member main body 42 so as to be able to appear and retract. Due to the configuration of the nozzle restricting mechanism 56, when the operating member 41 pushed by the fueling nozzle FZ is lowered to a predetermined position, the opening / closing pressing member 57 enters the engagement hole 26b, so that the insertion hole 22a is retracted from the introduction port 16c. Is configured to do.

(2) -3 Flap valve mechanism 60
In FIG. 2, the flap valve mechanism 60 includes an opening / closing member 61, a spring 62, and a gasket GS. The opening / closing member 61 is a disk-shaped member that is pivotally supported by the fitting portion 18c of the inlet forming member 18 and opens and closes the inlet 18a. The spring 62 is a string-wound spring, and one end of the coil shape is supported by the injection port forming member 18, and the other end abuts against the lower surface of the opening / closing member 61 to bias the opening / closing member 61. . The gasket GS is formed of a rubber material, and is press-fitted and fixed to the opening peripheral portion of the injection port 18a of the injection port forming member 18, and closes the injection port 18a in a sealed state by being pressed by the opening / closing member. The opening / closing member 61 of the flap valve mechanism 60 may be provided with a pressure regulating valve that adjusts the pressure of the fuel tank.

(3) Opening / Closing Operation of Fuel Tank Opening / Closing Device (3) -1 Opening Operation As shown in FIG. 1, when the fueling lid FL is opened, the fuel tank opening / closing device 10 disposed in the fueling chamber FR appears. When the oil supply nozzle FZ is inserted from the introduction port 16 c of the opening forming member 16 as shown in FIG. 2, the tip of the oil supply nozzle FZ pushes the pressing slope 53 b of the nozzle detection member 52 as shown in FIG. 7. When the pressing inclined surface 53b receives a radial force from the oil supply nozzle FZ, the locking portion 55 rotates around the support shaft 42c while the connecting arm 54 is bent so as to accumulate the spring force (FIG. 7B). ). As a result, the lock portion 55 is disengaged from the engaging portion 16d of the opening forming member 16, and the operating member 41 can be raised and lowered.

  As shown in FIG. 7B, when the introduction pressing portion 53 of the nozzle detection member 52 is retracted from the insertion hole 42a, the tip of the fuel supply nozzle FZ opens and closes the nozzle restriction mechanism 56 as shown in FIG. It hits the pressing member 57. In this state, when the fuel supply nozzle FZ is pushed in, the operating member 41 is brought into contact with the support shaft 24 of the support body 21 and the rotation shaft 33 of the shutter body 31 via the opening / closing pressing member 57 as shown in FIG. It moves to the tank side against the spring force of the spring 44 while being guided (see FIG. 4). As shown in FIG. 6, the upper cam surface 46 a of the upper cam portion 46 is displaced from the lower cam surface 34 a of the lower cam portion 34 of the shutter body 31 by the lower cam mechanism 45 disposed below the operation member 41. Push. Since the lower cam surface 34 a is an inclined surface in the axial direction around the rotation shaft 33, the actuating member 41 rotates the shutter body 31 while twisting the spring 36 around the rotation shaft 33. Thereby, the shutter main body 31 performs an operation of opening the insertion hole 22a. Then, as shown in FIG. 8B, when the operating member 41 descends to a position where the shutter main body 31 fully opens the insertion hole 22a, the opening / closing pressing member 57 enters the engagement hole 26b of the guide member 26 and a return spring 57b ( It enters against the spring force of FIG. 4) and retracts from the space above the insertion hole 22a. Thereby, the oil supply nozzle FZ is detached from the opening / closing pressing member 57 and inserted into the insertion hole 22a.

  Further, as shown in FIG. 9, when the fuel supply nozzle FZ is pushed in, the opening / closing member 61 of the flap valve mechanism 60 is pushed against the urging force of the spring 62, and the opening / closing member 61 rotates around the support shaft 61a. Then, the injection port 18a is opened. When the refueling nozzle is inserted into the injection port 18a, the fuel passage 11P is refueled. In this manner, when the operating member 41 of the shutter mechanism 20 is pushed by the fuel supply nozzle FZ and further the opening / closing member 61 of the flap valve mechanism 60 is pushed, the opening / closing member 61 can open the inlet 18a to supply oil.

(3) -2 Closing Operation When refueling is completed and the fuel supply nozzle FZ is removed from the injection port 18a, the opening / closing member 61 of the flap valve mechanism 60 closes the injection port 18a by the restoring force of the spring 62, and the shutter 30 is further moved to the spring 36. The insertion hole 22a is closed by the restoring force (see FIG. 4), and the fuel filler lid FL (FIG. 1) is further closed.

(4) Operation / Effect of Fuel Tank Opening / Closing Device The fuel tank opening / closing device 10 according to the embodiment provides the following operational effects.

(4) -1 The opening / closing pressing member 57 of the nozzle restricting mechanism 56 receives the insertion force of the fuel supply nozzle FZ and transmits it to the operating member 41, and the cam mechanism 45 further applies the moving force of the operating member 41 to open the shutter 30. Furthermore, the opening degree in the rotation direction of the shutter 30 can be increased according to the stroke length of the operation member 41 in the insertion direction. Therefore, the shutter 30 can be reliably opened and closed even if the frictional force is increased due to icing or the like. In addition, since the cam mechanism 45 directly transmits the insertion force of the fuel supply nozzle FZ to the shutter 30, the mechanical strength is high and the durability is excellent.

(4) -2 When the fueling nozzle FZ is inserted for fueling, the shutter 30 of the shutter mechanism 20 opens and the opening / closing member 61 of the flap valve mechanism 60 opens the inlet 18a. 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 As shown in FIG. 7, the nozzle detection mechanism 51 includes the introduction pressing portion 53 that is arranged to be pressed when the outer diameter of the tip of the fuel supply nozzle FZ is equal to or larger than a predetermined diameter. In the case of the fuel oil nozzle FZ (a) for light oil, the shutter 30 opens the insertion hole 22a. However, in the case of the fuel oil nozzle FZ (b) for gasoline, the shutter 30 does not open the inlet 16c. 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 30 does not open, so that the wrong type of fuel is not supplied.

(4) -4 As shown in FIG. 7, the nozzle detection mechanism 51 includes the connecting arm 54 that urges the spring force that urges the introduction pressing portion 53 in a direction to return it to the original position. When the FZ is removed from the insertion hole 42a, the connecting arm 54 returns the introduction pressing portion 53 to the original position, and the mechanism for returning to the original state can be simplified. Moreover, since the connecting arm 54 is formed integrally with the introduction pressing portion 53, the number of parts is not increased and the connection arm 54 has a simple configuration.

(4) -5 Since the shutter mechanism 20 opens the shutter 30 when the introduction pressing portion 53 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) -6 Even if the gasoline refueling nozzle is mistakenly inserted into the introduction port 16c, it is blocked by the shutter mechanism 20 and does not directly contact the flap valve mechanism 60, so that the flap valve mechanism 60 is not damaged. In view of such a situation, it is not necessary to strengthen the structure of the flap valve mechanism 60 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 rear part of the motor vehicle carrying the diesel engine which concerns on one Example of this invention. It is sectional drawing along the axial direction of the opening / closing apparatus of a fuel tank. It is sectional drawing which shows the shutter mechanism of FIG. It is the perspective view which decomposed | disassembled the shutter mechanism. It is a perspective view which shows an action mechanism. It is explanatory drawing explaining a cam mechanism. It is explanatory drawing explaining a nozzle detection mechanism. It is explanatory drawing explaining the nozzle control mechanism of the shutter mechanism of FIG. It is explanatory drawing explaining oil supply operation | movement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Opening / closing device 11 ... Tank opening formation member 11P ... Fuel passage 12 ... Connection pipe 12a ... Diameter-reduction part 12b ... Straight pipe part 12c ... Skirt part 16 ... Opening formation member 16a ... Side wall part 16b ... Top surface part 16c ... Inlet 16d ... Engagement part 16e ... Diameter expansion part 16f ... Lower cylindrical part 16g ... Claw 16h ... Bearing recess 18 ... Injection port forming member 18a ... Injection port 18b ... Disc part 18c ... Fitting part 20 ... Shutter mechanism 21 ... Support DESCRIPTION OF SYMBOLS 22 ... Support plate 22a ... Insertion hole 22b ... Support hole 24 ... Support shaft 26 ... Guide member 26b ... Engagement hole 30 ... Shutter 31 ... Shutter main body 32 ... Expansion part 33 ... Rotating shaft 34 ... Lower cam part 34a ... Lower cam Surface 36 ... Spring 40 ... Actuating mechanism 41 ... Actuating member 42 ... Acting member main body 42a ... Insertion hole 42b ... Inclined surface 42c ... Support shaft 42d ... Holding member 43 ... Support base 43a ... Guide hole 43b ... Spring support recess 43c ... Side portion 43d ... Housing hole 44 ... Spring 45 ... Cam mechanism 46 ... Upper cam portion 46a ... Upper cam surface 51 ... Nozzle detection mechanism 52 ... Nozzle detection member 53 ... Introduction pressing portion 53a ... Pressing body 53b ... Pressing slope 54 ... Connecting arm 55 ... Locking part 56 ... Nozzle regulating mechanism 57 ... Opening / closing pressing member 57a ... Inclined surface 57b ... Return spring 60 ... Flap valve mechanism 61 ... Opening / closing member 61a ... Support shaft 62 ... Spring BP ... Substrate FL ... Oiling lid FLa ... Lid body FLb ... Hinge FR ... Oiling chamber FZ ... Oiling nozzle GS ... Gasket

Claims (7)

In a fuel tank opening and closing device for opening and closing a passage for supplying fuel to the fuel tank,
A tank opening forming member (11) having a fuel passage (11P) connected to the fuel tank via an inlet (18a) for inserting a fuel filler nozzle (FZ);
A shutter (disposed in the tank opening forming member (11)) that opens and closes the inlet (18a) by rotating in a second direction substantially perpendicular to the first direction in which the fuel nozzle (FZ) is inserted. 30),
An operating member (41) disposed on the insertion side of the fueling nozzle (FZ) with respect to the inlet (18a) and provided to be movable in the first direction;
Nozzle restriction having an opening / closing pressing member (57) connected to the operating member (41), receiving a moving force in the first direction by the oil supply nozzle (FZ) and transmitting the moving force to the operating member (41). A mechanism (56);
A cam mechanism (45) that converts a force of moving the operating member (41) in the first direction into a force of rotating the shutter (30) to open the inlet (18a);
With
The opening / closing pressing member (57) is configured to allow the fuel supply nozzle (FZ) to be inserted into the injection port (18a) when the operating member (41) moves to a predetermined position. (18a) configured to be saved from the position facing
A fuel tank opening and closing device. The fuel tank opening and closing device according to claim 1,
The shutter (30) includes a disc-shaped shutter body (31) that opens and closes the inlet (18a), and a rotation shaft (33) formed at an end of the shutter body (31). A fuel tank opening and closing device configured such that the shutter body (31) opens and closes the inlet (18a) by rotating about the rotating shaft (33). The fuel tank opening and closing device according to claim 2,
The tank opening forming member (11) includes a disc-shaped support plate (22) disposed in the second direction above the inlet (18a), and a first direction from above the support plate (22). And a support body (21) having a support hole (22b) for supporting the end of the rotation shaft (33)
The operating member (41) is a fuel tank opening and closing device supported by the support shaft (24) and the rotating shaft (33) so as to be movable in a first direction. The fuel tank opening and closing device according to claim 3,
The cam mechanism (45) includes an upper cam portion (46) formed at a lower portion of the operating member (41), and a lower cam portion (34) formed on the rotating shaft (33). A fuel tank opening and closing device. The fuel tank opening and closing device according to claim 4,
The lower cam portion (34) is a fuel tank opening and closing device provided with a lower cam surface (34a) which is an inclined surface spirally formed on the outer peripheral portion of the rotating shaft (33). The fuel tank opening and closing device according to claim 5,
The opening / closing pressing member (57) is supported by the operating member (41) so as to be slidable in the second direction. When the operating member (41) reaches a predetermined position, the opening / closing pressing member (57) is moved to the tank opening forming member (11). A fuel tank opening and closing device provided to be retracted in the provided engagement hole (26b). The fuel tank opening and closing device according to any one of claims 1 to 6,
Further, a fuel tank provided with a flap valve mechanism (60) that is disposed on the fuel tank side with respect to the shutter (30) and opens the fuel passage (11P) when pressed by the fuel supply nozzle (FZ). Switchgear.

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