JP2015063294A - Opening/closing device of fuel tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening/closing device of a fuel tank, which easily achieves a configuration for regulating fuel supply work with an incorrect fuel supply nozzle.SOLUTION: An opening/closing device of a fuel tank comprises: a tank opening-forming member; a turning member 51; a nozzle detection member 81 detecting a fuel supply nozzle; and a lock member 91 having a regulation part 91b which is arranged on the free end side that is the another end side with respect to the turning member 51, and on the rear face side of the turning member 51. The turning member 51 is configured to change an opening angle around a shaft support part 52 in order to regulate a position to which the fuel supply nozzle can be inserted in a fuel passage 11P when the fuel supply nozzle abuts against the turning member 51. The regulation part 91b is configured to change the opening angle of the turning member 51 by changing a position of the rear face side of the turning member 51 according to a displacement amount of the nozzle detection member 81 when being pressed by a tip of the fuel supply nozzle.

Description

  The present invention relates to a fuel tank opening and closing device for refueling a fuel tank.

  In order to distinguish between gasoline and light oil, an oil supply nozzle for supplying fuel to an automobile generally has a nozzle diameter for gasoline of 20 mm and a nozzle diameter for light oil of 25 mm, and these nozzle diameters are different. As a fuel tank opening and closing device for dealing with such a difference in oil type with different nozzle diameters, the technology of Patent Document 1 is known. A fuel tank opening and closing device includes a tank opening forming member that forms a fuel passage, a flap valve (opening and closing member) that is rotatably supported at one end on an inner wall of the tank opening forming member, and a nozzle that has a fuel supply nozzle that exceeds a predetermined level. A gate mechanism having a stop gate that enables insertion of the fuel nozzle by sliding in a direction intersecting with the fuel nozzle when the diameter is reached. The gate mechanism is configured to open the stop gate when a light oil nozzle is inserted, but not to open when a gasoline oil nozzle having a smaller nozzle diameter is inserted.

US Pat. No. 7,182,111 specification US Pat. No. 7,302,977 US Pat. No. 6,968,874

  The stop gate in such a fuel tank opening and closing device has a problem in that it takes effort to design for preventing breakage of the stop gate because the fuel nozzle hits in the direction intersecting the sliding direction.

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.

(1) This embodiment is a fuel tank opening and closing device having a fuel passage into which a fuel nozzle is inserted and which guides fuel supplied from the fuel nozzle to the fuel tank. A fuel tank opening and closing device is disposed in the fuel passage so as to block at least a part of the fuel passage, and is rotated at one end to the tank opening formation member. A rotating member that is supported so as to be rotated by being pushed at the tip of the fueling nozzle;
A nozzle detection member that is disposed in the fuel passage on the fuel tank side from the rotating member, and is movable in a direction that intersects the insertion direction of the fuel nozzle by being pushed by the tip of the fuel nozzle. A lock member having a restricting portion disposed between the rear surface side of the rotating member and the tank opening forming member which is the free end side which is the other end of the moving member and which does not hit the tip of the oil supply nozzle; And the restricting portion changes the position of the back side of the rotating member between a restricting position and a non-regulating position in accordance with the amount of movement of the nozzle detecting member when pushed by the tip of the fueling nozzle. When the restricting portion is in the restricting position, the opening angle of the turning member is received by the tank opening forming member receiving a force that the turning member opens through the restricting portion. The regulatory part It is smaller than when in the braking position, characterized by.
The nozzle detection mechanism includes a nozzle detection member arranged so as to be pushed by the tip of the fuel supply nozzle, and changes the position of the restriction portion of the lock member according to the amount of movement of the nozzle detection member. That is, when the outer diameter of the oil supply nozzle is greater than or equal to a predetermined value, the nozzle detection member moves greatly, and the restriction portion of the lock member moves from the restriction position on the back surface of the rotating member to the non-regulation position in conjunction with the nozzle detection member. To do. When the restricting portion is in the restricting position, the opening of the rotating member is received by the tank opening forming member via the restricting portion, so that the opening angle of the turning member is set to the non-regulating position. Make it smaller than it is. The rotating member regulates the insertion position of the fueling nozzle when the opening angle is small. When the restricting portion is in the restricting position, the tank opening forming member receives the force that the rotating member opens through the restricting portion, so that no large force is applied to the restricting portion. Therefore, the design for determining the mechanical strength of the lock member to the restricting portion is facilitated, and the mechanism thereof is also simplified.

(2) In another embodiment, the restriction portion is configured to change the restriction position and the non-restriction position by advancing and retreating in the same direction as the shaft that rotatably supports the rotation member. This is a tank opening and closing device.

(3) In another embodiment, the lock member and the nozzle detection member are a fuel tank opening and closing device that is integrally formed and is rotatably supported by the tank opening forming member.

(4) In another embodiment, the nozzle detection member includes a spring for returning to an initial position where the nozzle detection member is not pushed by the fuel supply nozzle, and the spring opens and closes a fuel tank formed integrally with the nozzle detection member. Device.

(5) In another aspect, the rotating member is a fuel tank opening and closing device that is a member that opens and closes an insertion opening that is an opening of the fuel passage.

(6) In another embodiment, an inlet opening / closing mechanism is provided on the fuel tank side from the nozzle detection member and the lock member in the fuel passage,
The inlet opening and closing mechanism is a fuel tank opening and closing device comprising an opening and closing member for opening and closing the inlet of the fuel passage, and a gasket for sealing between the opening peripheral edge of the inlet and the opening and closing member. is there.

(7) In another embodiment, the rotating member advances and retreats along a first axis that is an axis that rotatably supports the rotating member with respect to the tank opening forming member.
The restricting portion includes an amount of movement of the nozzle detection member when pushed by the tip of the fuel supply nozzle, and the rotation member that advances and retreats with respect to a plane perpendicular to the first axis that passes through the center of the fuel passage. The fuel tank opening and closing device is configured to change the position of the rotating member to the restriction position and the non-restriction position in accordance with a displacement amount.
According to the fuel tank opening and closing device of this aspect, at the time of refueling, even if there is some error in the position where the fuel nozzle is inserted, the fuel nozzle corresponding to the fuel tank is easily inserted into the fuel tank.

(8) In another form,
A positioning member for positioning the rotating member so that the position of the rotating member with respect to the tank opening forming member returns to a preset position when no external force is applied to the tank opening forming member; A fuel tank opening and closing device provided.
According to the fuel tank opening and closing device of this embodiment, when the fuel nozzle is inserted into the fuel tank, the center of the tip of the fuel nozzle is always easily positioned at the center of the fuel passage, so the fuel nozzle is inserted into the fuel tank. Easy to be.

(9) In another form,
The fuel tank opening and closing device is configured integrally with the positioning member and includes a rotation support member for rotating the rotation member.
According to the fuel tank opening and closing device of this embodiment, the number of parts used in the opening and closing device can be reduced.

(10) In another form,
The fuel tank opening and closing device includes a rotation support member configured to rotate separately from the positioning member.
According to the fuel tank opening and closing device of this embodiment, the degree of freedom in designing the opening and closing device is improved.

(11) In another form,
A nozzle load detector for detecting a load applied from the fueling nozzle to the rotating member when the rotating member is pushed at the tip of the oiling nozzle;
The displacement amount of the rotating member (151) is a fuel tank opening and closing device determined based on the detected load.
According to the fuel tank opening and closing device of this aspect, the fuel nozzle is easily inserted into the fuel tank.

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, and shows the state which opened the fueling lid | cover. It is sectional drawing which shows the opening / closing apparatus of a fuel tank. It is sectional drawing which decomposes | disassembles and shows the upper part of the opening / closing apparatus of a fuel tank. It is sectional drawing which decomposes | disassembles and shows the upper part of the opening / closing apparatus of a fuel tank. FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. It is sectional drawing corresponding to FIG. It is a perspective view which shows an opening degree control mechanism. It is a perspective view which partially fractures | ruptures and shows the state which assembled | attached the opening degree control mechanism to the insertion channel | path formation member. It is explanatory drawing explaining the structure of an opening degree control mechanism. It is explanatory drawing explaining the structure of an opening degree control mechanism. It is explanatory drawing explaining 1 operation | movement of the opening degree control mechanism at the time of oil supply. It is explanatory drawing explaining other operation | movement of the opening degree control mechanism at the time of oil supply. It is sectional drawing in the switchgear of the 1st form of 2nd Example which followed the 6-6 line of FIG. It is sectional drawing in the switchgear of the 1st form of 2nd Example which followed the 6-6 line of FIG. It is an arrow line view in the opening / closing apparatus of the 2nd form of 2nd Example seen from the arrow line 7 of FIG. It is an arrow line view in the opening / closing apparatus of the 2nd form of 2nd Example seen from the arrow line 7 of FIG. It is sectional drawing of the rotation member along the 8-8 line of FIG. 15 when a fueling nozzle is inserted in the switchgear.

  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.

A. First embodiment:
(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 oiling lid FL includes a lid body FLa that follows the outer plate of the vehicle body. The lid body is supported on the outer plate of the vehicle body via a hinge FLb so as to be openable and closable. A space that appears when the fueling lid FL is opened is a fueling chamber FR. 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 guiding fuel to the fuel tank without using a fuel cap. After opening the fueling lid FL, the fuel tank is opened and closed by an external force from the fueling nozzle, thereby supplying fuel. This is a mechanism that can supply fuel from the nozzle to the 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 showing the fuel tank opening / closing device 10. The 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), an insertion side opening / closing mechanism 50, an inlet opening / closing mechanism 60, and an opening degree regulating mechanism 70. It has. The fuel tank opening / closing device 10 pushes and opens the insertion side opening / closing mechanism 50 and the inlet opening / closing mechanism 60 by the fuel nozzle, and when the fuel is injected from the fuel nozzle into the fuel passage 11P, the fuel enters the fuel tank through the fuel passage 11P. Supplied. Hereinafter, the configuration of each unit will be described.

(2) -1 Tank opening forming member 11
The tank opening forming member 11 is a tubular body that forms the fuel passage 11P, and includes a passage forming member 20, an insertion passage forming member 30, and an inlet forming member 40. The passage forming member 20 includes a reduced diameter portion 21a that gradually reduces the diameter of the fuel tank and a straight pipe portion 21b that is connected to the reduced diameter portion 21a, and these are integrally formed.

  FIG. 3 is an exploded sectional view showing the upper part of the fuel tank opening and closing device 10. The insertion passage forming member 30 includes a cover member 32. The cover member 32 is mounted on the upper portion of the passage forming member 20 and includes a cylindrical side wall portion 32a and an upper wall 32b. The upper portion of the side wall portion 32a is inclined, and the upper wall 32b is integrally formed on the inclined upper portion. The upper wall 32b includes an opening 32d for inserting a fuel nozzle. The opening 32d includes an insertion opening 32e and a shaft support portion 32f. The insertion opening 32e is substantially circular for inserting the fuel supply nozzle, and constitutes a part of the fuel passage 11P. The shaft support portion 32f is a part for mounting and supporting the end portion of the insertion side opening / closing mechanism 50, which is formed on the inner wall of the side wall portion 32a.

  A passage forming member 34 is disposed in the cover member 32. The passage forming member 34 is a member for partitioning an insertion passage 11Pa that is a part of the fuel passage 11P in order to insert and guide the fuel nozzle, and includes a large diameter portion 34a, an inclined portion 34b, and a small diameter portion 34c. ing. The passage forming member 34 is connected to the small-diameter portion 34c from the large-diameter portion 34a by narrowing the area with the inclined portion 34b.

  The inlet forming member 40 is a member that supports the inlet opening / closing mechanism 60, and includes an opening 41 and a cylindrical support member 42 that protrudes from the outer peripheral lower surface of the opening 41 and is accommodated in the passage forming member 20. I have. The opening 41 includes an injection port 41a. The injection port 41a is a substantially circular passage for inserting a fuel supply nozzle, and constitutes a part of the fuel passage 11P.

(2) -2 Insertion side opening / closing mechanism 50
FIG. 4 is a sectional view showing a part of the fuel tank opening and closing device 10 while disassembling it. The insertion side opening / closing mechanism 50 includes a rotation member 51, a shaft support portion 52, and a spring 53 that urges the rotation member 51 in the closing direction. The rotation member 51 is pushed by the tip of the oil supply nozzle against the spring force of the spring 53 and rotates about the shaft support portion 52 to open the insertion opening 32e. On the upper surface of the rotating member 51, a curved curved surface 51a is formed for smooth contact with the fueling nozzle. A restricting protrusion 51 b is formed at the free end of the rotating member 51.

(2) -3 Inlet opening / closing mechanism 60
The inlet opening / closing mechanism 60 includes an opening / closing member 61, a bearing portion 62 that rotatably supports the opening / closing member 61 with respect to the inlet forming member 40, a spring 63 that biases the opening / closing member 61 in the closing direction, And a gasket 64 seated on the peripheral edge of the opening of the inlet 41a. A valve chamber is formed in the opening / closing member 61, and a pressure regulating valve (not shown) is accommodated in the valve chamber. The pressure regulating valve is a valve that opens when the pressure of the fuel tank exceeds a predetermined pressure and releases the pressure on the fuel tank side. The opening / closing member 61 is pushed at the tip of the oil supply nozzle against the spring force of the spring 63 and rotates around the bearing portion 62 to open the injection port 41a.

(2) -4 Opening restriction mechanism 70
In FIG. 2, the opening degree regulating mechanism 70 is disposed below the insertion side opening / closing mechanism 50 and in the insertion passage 11Pa, and can insert the fuel nozzle according to the outer diameter of the tip of the fuel nozzle. This mechanism determines the maximum distance. The opening restriction mechanism 70 includes a nozzle detection mechanism 80, an opening restriction member 90, and a support mechanism that is formed in the passage forming member 34 and supports the nozzle detection mechanism 80 and the opening restriction member 90.

FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 2, and shows a state where a light oil supply nozzle FZa is inserted. FIG. 6 is a cross-sectional view corresponding to FIG. 5 and shows a state where a gasoline supply nozzle FZb is inserted. FIG. 7 is a perspective view showing the opening degree regulating mechanism 70, and FIG. 8 is a perspective view showing a state in which the opening degree regulating mechanism 70 is assembled to the insertion passage forming member 30 with a part thereof broken.
5 and 7, the nozzle detection mechanism 80 includes nozzle detection members 81 arranged on both sides of the insertion passage 11Pa. The nozzle detection member 81 includes a shaft body 82 that is pivotally supported by the shaft support portion 34e of the passage forming member 34, an introduction pressing portion 83 that is disposed facing the insertion passage 11Pa, and a spring 84, which are made of a resin material. It is integrally formed. The introduction pressing portion 83 includes a pressing body 83a and a pressing slope 83b that is inclined from the pressing body 83a toward the insertion passage 11Pa and downward. The pressing slope 83b is disposed so as to be pressed at the tip of the fuel supply nozzle FZ. The spring 84 shown in FIG. 7 is a resin spring formed from a cantilever beam protruding from the upper part of the nozzle detection member 81. The distal end portion 84a of the spring 84 is engaged with the support portion 34f of the passage forming member 34, and acts as a return spring that returns to the initial position when the introduction pressing portion 83 rotates about the shaft body 82.

In FIG. 7, the opening degree regulating member 90 is integrally formed with a nozzle detection member 81 and a resin material, and includes a lock member 91. The lock member 91 is disposed at a predetermined gap in the axial direction of the nozzle detection member 81 and the shaft body 82 and parallel to the introduction pressing portion 83, and includes a connecting portion 91a and a restricting portion formed at the tip of the connecting portion 91a. 91b.
As shown in FIG. 8, the restricting portion 91 b is disposed at a position where it comes into contact with the back surface side of the rotating member 51 when the rotating member 51 is opened from the closed state. Since the lock member 91 is formed integrally with the nozzle detection member 81, the restricting portion 91 b of the lock member 91 is rotated by the rotation member 51 by rotating integrally with the nozzle detection member 81 around the shaft body 82. It is possible to move from a restricting position that hits the back surface of the rotating member 51 to a non-regulating position that does not hit the back surface of the rotating member 51.

  As shown in FIG. 5, when the outer diameter of the tip of the light oil supply nozzle FZa is Da, and the gasoline supply nozzle FZb is Db as shown in FIG. 6, Db <Da is set. For example, the outer diameter Da is set to 25 mm, and the outer diameter Db is set to 20 mm. When the tip of the oil supply nozzle FZ is inserted into the insertion passage 11Pa, the nozzle detection member 81 rotates around the shaft body 82 when it hits the pressing inclined surface 83b, and the lock member 91 of the opening degree regulating member 90 is linked to this. Rotate in the same direction. Since the outer diameter Da of the light oil supply nozzle FZa shown in FIG. 5 is larger than the outer diameter Db of the gasoline supply nozzle FZb shown in FIG. 6, the nozzle detection member 81 is rotated greatly.

As shown in FIG. 9, when the light oil supply nozzle FZa is inserted into the insertion passage 11Pa, the lock member 91 is interlocked with the nozzle detection member 81 (FIG. 5) pushed at the tip of the oil supply nozzle FZa. The restricting portion 91b moves from the restricting position on the back side of the rotating member 51 to the non-regulating position. Therefore, the rotation member 51 has a large opening angle because the regulating portion 91b does not hit the back surface thereof.
On the other hand, as shown in FIG. 10, when the gasoline refueling nozzle FZb is inserted into the insertion passage 11Pa, the lock member 91 is interlocked with the nozzle detecting member 81 (FIG. 6) pushed by the fuel refueling nozzle FZb. Even if the restricting portion 91b moves, the restricting position on the back surface of the rotating member 51 is maintained. Therefore, the rotation member 51 has a small opening angle since the restricting portion 91b hits the back surface thereof.

(3) Opening / Closing Operation of Fuel Tank Opening / Closing Device (3) -1 Inserting Operation of Large Diameter Refueling Nozzle FZ As shown in FIG. 1, when the fueling lid FL is opened, the fuel tank disposed in the fueling chamber FR The switchgear 10 appears. In the case of refueling, as shown in FIGS. 5 and 6, a case where two types of refueling nozzles having different nozzle diameters are used will be described. First, the case where the oil supply nozzle FZa for light oil whose nozzle diameter is D1 will be described, and then the case where the oil supply nozzle FZb for gasoline whose nozzle diameter is D2 (D1> D2) will be described.

  As shown in FIG. 11, when the turning member 51 is pushed by the fuel supply nozzle FZa, the turning member 51 of the insertion side opening / closing mechanism 50 is pushed against the urging force of the spring 53, and the turning member 51 becomes the shaft support portion. Rotating about 52, the insertion opening 32e is opened. As shown in FIG. 5, when the tip of the oil supply nozzle FZa reaches the introduction pressing portion 83 of the nozzle detection mechanism 80 and pushes the introduction pressing portions 83 on both sides, the pressing slope 83 b receives a radial force from the oil supply nozzle FZ. Accordingly, the nozzle detection members 81 on both sides rotate simultaneously around the shaft body 82 while the spring 84 (FIG. 7) is bent so as to accumulate the spring force. In conjunction with the nozzle detection member 81, the lock member 91 of the opening degree regulating member 90 moves in the outer diameter direction, that is, from the regulated position to the non-regulated position. Thereby, since there is no restricting portion 91b on the back side of the rotating member 51, the opening angle of the rotating member 51 is not restricted. Therefore, the fuel supply nozzle FZa is guided to the back side (fuel tank side) while increasing the opening angle of the turning member 51 while contacting the end of the turning member 51.

Further, when the fuel filler nozzle FZa is pushed in, the opening / closing member 61 of the inlet opening / closing mechanism 60 is pushed against the urging force of the spring 63, the opening / closing member 61 rotates around the bearing portion 62, and the inlet 41a is moved. be opened. When the refueling nozzle is inserted into the injection port 41a, fuel is supplied from the refueling nozzle FZa.
In this way, the introduction pressing portion 83 of the nozzle detection member 81 is pushed by the fuel supply nozzle FZa, the lock member 91 of the opening restriction member 90 of the opening restriction mechanism 70 releases the restriction of the opening angle of the rotation member 51, When the opening / closing member 61 of the inlet opening / closing mechanism 60 is pushed, the opening / closing member 61 can open the inlet 41a and supply oil.

  When refueling is finished and the oil supply nozzle FZ is removed from the injection port 41a, the opening / closing member 61 of the injection port opening / closing mechanism 60 closes the injection port 41a by the restoring force of the spring 63, and when the oil supply nozzle FZ is further removed, the opening degree restriction The nozzle detection mechanism 80 and the opening degree regulating member 90 of the mechanism 70 are returned to the initial positions, that is, the diameter is reduced by the spring force of the spring 84 (FIG. 7), and the introduction pressing portion 83 is returned to the original position. Further, the rotation member 51 of the insertion side opening / closing mechanism 50 closes the insertion opening 32e by the spring force of the spring 53, and further closes the fueling lid FL (FIG. 1).

(3) -2 Insertion operation of small-diameter oil supply nozzle FZb As shown in FIG. 12, when the rotation member 51 is pushed by the gasoline supply nozzle FZb, the rotation member 51 resists the urging force of the spring 53, The insertion opening 32e is opened by rotating around the shaft support portion 52. As shown in FIG. 6, even if the tip of the oil supply nozzle FZb reaches the introduction pressing portion 83 of the nozzle detection mechanism 80, the outer diameter Db of the tip of the oil supply nozzle FZb is small, so that the introduction pressing portions 83 on both sides are simultaneously pressed. I can't. For this reason, even if the tip of the fuel supply nozzle FZb hits the nozzle detection member 81, the nozzle detection member 81 does not rotate radially outward, so the restriction portion 91b of the lock member 91 of the opening degree restriction member 90 remains in the non-restriction position. It is.
For this reason, even if the rotation member 51 is pushed by the fuel supply nozzle FZb, the opening angle cannot be increased by hitting the restricting portion 91b of the lock member 91. Therefore, the fuel supply nozzle FZ is the inner wall of the small diameter portion 34c of the passage forming member 34. It is restrained and cannot be inserted until it reaches the opening / closing member 61 of the inlet opening / closing mechanism 60 by hitting the restricting protrusion 51b of the rotating member 51. Therefore, the refueling operation by the refueling nozzle FZb cannot be performed.

(4) Operation / Effect of Fuel Tank Opening / Closing Device According to the fuel tank opening / closing device 10 according to the above embodiment, the following operational effects are obtained.
(4) -1 As shown in FIGS. 5 and 6, the nozzle detection mechanism 80 includes a nozzle detection member 81 that is pressed when the outer diameter of the tip of the fuel supply nozzle FZ is equal to or larger than a predetermined diameter. The position of the restricting portion 91b of the lock member 91 is changed between the restricting position and the non-regulating position according to the amount of movement. That is, as shown in FIG. 11, in the case of the fuel oil supply nozzle FZa for light oil, the nozzle detection member 81 rotates greatly, and the regulating portion 91 b of the lock member 91 interlocks with the nozzle detection member 81 and the rotation member 51. Therefore, the opening angle of the rotating member 51 can be increased. As a result, the oil supply nozzle FZa can be inserted to the position where the opening / closing member 61 of the inlet opening / closing mechanism 60 is pushed open and can be supplied with oil.
On the other hand, as shown in FIG. 12, in the case of the gasoline refueling nozzle FZb, the nozzle detection member 81 is not greatly rotated, so that the restriction portion 91 b of the lock member 91 is in the restriction position, and The opening angle is small. Thereby, the oil supply nozzle FZb cannot be refueled because it cannot be inserted to the position where the opening / closing member 61 of the inlet opening / closing mechanism 60 is pushed open.

(4) -2 As shown in FIG. 12, the opening degree regulating member 90 changes the regulating portion 91 b of the lock member 91 on the back surface side of the rotating member 51 from the regulated position to the non-regulated position. When the restricting portion 91b is in the restricting position, the passage forming member 34 of the tank opening forming member 11 receives the opening force applied to the rotating member 51 from the fuel supply nozzle FZ via the restricting portion 91b. Power is not applied. Therefore, the design for determining the mechanical strength of the lock member 91 to the restricting portion 91b is facilitated, and the mechanism thereof is also simplified.

(4) -3 As shown in FIG. 7, the lock member 91 of the opening degree regulating member 90 is driven in conjunction with the nozzle detection mechanism 80 that detects the fuel supply nozzle FZ, so that the configuration for driving the lock member 91 is also simple. It is. Further, the opening degree regulating member 90 can be reduced in the number of parts by being configured integrally with the nozzle detection mechanism 80.

(4) -4 As shown in FIG. 12, when an incorrect oil supply nozzle FZb is used during refueling, the maximum position where the oil supply nozzle FZb can be inserted does not reach the opening / closing member 61 of the inlet opening / closing mechanism 60. Therefore, the inlet opening / closing mechanism 60 is not easily damaged by the force of the fuel supply nozzle FZb.

(4) -5 As shown in FIG. 4, the opening degree regulating mechanism 70 is configured to be separated from the inlet opening / closing mechanism 60, and therefore the failure of the opening degree regulating mechanism 70 hardly reaches the inlet opening / closing mechanism 60. .

(4) -6 As shown in FIG. 4, the opening degree regulating mechanism 70 is assembled to the insertion passage forming member 30 and can be separated from the passage forming member 20 to which the inlet opening / closing mechanism 60 is mounted. It can be assembled to the passage forming member 20 and is highly versatile.

(4) -7 As shown in FIG. 2, the rotation member 51 of the insertion side opening / closing mechanism 50 closes the insertion opening 32e and is disposed above the inlet opening / closing mechanism 60. Has a waterproof function, and it is difficult for dust and the like to enter, so that the sealing performance of the inlet opening / closing mechanism 60 is not lowered or deteriorated.

B. 2nd Example (5) -1 1st form of 2nd Example In the opening / closing apparatus 10a of 2nd Example, the rotation member 151 is along the axis | shaft of the shaft support part 52 with respect to the tank opening formation member 11. FIG. Unlike the above-described embodiment, the other configuration of the switchgear 10a is the same as that of the switchgear 10 of the above-described embodiment.

  FIGS. 13 and 14 are cross-sectional views of the opening / closing device 10a according to the first embodiment of the second embodiment along line 6-6 in FIG. 2, and show a state in which the fueling nozzle FZa is inserted. FIG. 13 is a sectional view showing a state in which the rotating member 151 is disposed at the initial position. FIG. 14 is a cross-sectional view showing a state in which the rotating member 151 has moved a length L1 from the initial position.

  As shown in FIGS. 13 and 14, the spring 153 of the opening / closing device 10 a can be expanded and contracted along the axis of the shaft support portion 52, unlike the spring 53 of the above embodiment. The spring 153 includes a first spiral portion 153a, a second spiral portion 153b, and a rotating member contact portion 153c. As shown in FIG. 13, the first spiral portion 153 a and the second spiral portion 153 b are axes that pass through the center of the rotation member 151 and are orthogonal to the shaft support portion 52 at an initial position where the rotation member 151 is not moving. It is a stretchable part arranged in contrast with a certain central axis OL1. The first spiral portion 153a and the second spiral portion 153b are formed as an integral spring 153 by the rotating member contact portion 153c. The shaft of the shaft support portion 52 corresponds to the same direction as the first shaft in the claims.

  The first spiral portion 153 a and the second spiral portion 153 b expand and contract along the axis of the shaft support portion 52, so that the position of the rotating member 151 with respect to the tank opening forming member 11 moves along the axis of the shaft support portion 52. change. The rotation member contact portion 153 c is a portion that contacts the rotation member 151 and rotates around the shaft support portion 52 as a unit with the rotation member 151. In addition, the 1st spiral part 153a and the 2nd spiral part 153b are equivalent to the positioning member in a claim, and the rotation member contact part 153c is equivalent to the rotation support member in a claim. The initial position corresponds to a preset position in the claims.

  As shown in FIG. 14, when the center axis of the light oil supply nozzle FZa is inserted with a length L1 shifted from the center axis OL1, the first spiral portion 153a is shortened by the length L1, and the second spiral portion 153b is Conversely, the rotation member 151 moves along the axis of the shaft support portion 52 by extending the length L1. Specifically, the rotating member 151 moves to a position centered on the axis OL2 that is separated from the central axis OL1 by a length L1 along the axis of the shaft support portion 52. In this case, one nozzle detection member 81 present on the second spiral portion 153b side with respect to the center axis OL1 is along the axis of the shaft support portion 52 by the pressing inclined surface 83b and the oil supply nozzle FZa being in contact with each other. Only a distance (Da / 2−L1) smaller than the distance (Da / 2) moves. The restricting portion 91b of the one lock member 91 that rotates in conjunction with the one nozzle detection member 81 has a rotation amount (angle) compared to the case where the nozzle detection member 81 moves a distance (Da / 2). ) Is small. However, since the rotating member 151 moves along the axis of the shaft support portion 52 in a direction away from the one restricting portion 91b with a small amount of rotation, the restricting protrusions on the back surface of the rotating member 151 and the rotating member 151 are moved. Since the back surface of the part 151b does not contact the restricting part 91b, the opening angle of the rotating member 151 is not restricted. Therefore, since the rotation member 151 can move to the non-regulated position, the fuel supply nozzle FZa increases the opening angle of the rotation member 151 so that the fuel tank does not come into contact with the regulation protrusion 151b of the rotation member 151. Since entry into is not regulated, it is guided to the back side (fuel tank side). That is, in the second embodiment, the oil supply nozzle FZa for light oil is displaced with respect to the opening / closing device 10a within a predetermined range in which the rotating member 151 can move along the axis of the shaft support portion 52 with respect to the opening / closing device 10a. Even if it is inserted at the position, the restricting portion 91 b does not hit the back surface of the rotating member 151. In other words, when the oil supply nozzle FZ is inserted, the rotation member 151 is changed according to the amount of movement of the nozzle detection member 81 that moves according to the diameter of the oil supply nozzle FZ and the amount of deviation between the oil supply nozzle FZ and the rotation member 151. The opening angle of is determined.

  In the first form of the second embodiment, the first spiral portion 153a and the second spiral portion 153b extend and contract, so that the position along the axis of the shaft support portion 52 of the rotating member 151 with respect to the tank opening forming member 11 is determined. When the fuel supply nozzle FZa is removed from the opening / closing device 10a, the first spiral portion 153a and the second spiral portion 153b move the rotating member 151 to the initial position by the urging force along the axis of the shaft support portion 52.

(5) -2 Second Mode of Second Example FIGS. 15 and 16 are arrow views of the opening / closing device 10b of the second mode of the second example as viewed from the arrow 7 of FIG. In the second embodiment 10b, the structure of the spring 157 when the rotating member 151 expands and contracts and moves along the axis of the shaft support portion 52 is formed on the rotating member 151 in contrast to the central axis OL1. The configuration of the rib 151c is different from that of the first embodiment, and other configurations are the same as those of the opening / closing device 10a of the second embodiment. FIG. 15 shows a state in which the rotating member 151 is closed without being inserted in the opening / closing device 10b and being arranged at the initial position. Further, FIG. 16 shows a state in which the rotation member 151 has moved the length L1 along the axis of the shaft support portion 52 and the rotation member 151 is closed, as in FIG.

  As shown in FIGS. 15 and 16, the spring 157 of the opening / closing device 10 b includes a first spiral portion 157 a, a second spiral portion 157 b, and a rotating member contact portion 157 c. In the second embodiment, unlike the first embodiment, the first spiral portion 157a and the second spiral portion 157b extend and contract and move along the axis of the shaft support portion 52, and the shape of the rotating member contact portion 157c. As a result of deformation, the rotating member 151 moves. In the second embodiment, as in the first embodiment, when the oil supply nozzle FZ is changed from the inserted state to the removed state, the spring 157 is rotated by the urging force along the shaft of the shaft support portion 52. 151 is moved to the initial position.

  FIG. 17 is a cross-sectional view of the rotating member 151 taken along line 8-8 in FIG. 15 when the fueling nozzle FZ is inserted into the opening / closing device 10b. As shown in FIG. 17, the rotating member 151 includes a curved surface 151a corresponding to the curved surface 51a formed on the rotating member 51 of the first embodiment, a flat surface 151d formed in a flat shape, a curved surface 151a and a flat surface. And a rib 151c formed so as to protrude on the opposite side of the curved surface 151a. The curved surface 151a and the rib 151c are continuously formed with a curved surface on the side close to the central axis OL1. Therefore, when the rotation member 151 is pushed at the tip of the fuel supply nozzle FZ, the load along the axis of the shaft support portion 52 in the load applied to the position where the fuel supply nozzle FZ and the rotation member 151 come into contact with each other is a spring. When the force is greater than the urging force of 157, the rotating member 151 moves along the axis of the shaft support portion 52. The curved surface 151a and the rib 151c correspond to a nozzle load detection unit in the claims. In the present specification, the load is a concept including the magnitude of the force and the direction of the force.

(5) -3 Actions / Effects of Fuel Tank Opening / Closing Device in Second Embodiment According to the fuel tank opening / closing devices 10b, 10c according to the first embodiment and the second embodiment of the second embodiment, the following operations are performed. There is an effect.
(5) -3-1 The amount of movement of the nozzle detection member 81 and the rotation member when the rotation member 151 can move along the axis of the shaft support portion 52 and the oil supply nozzle FZ is inserted into the opening / closing devices 10a and 10b. Since the opening angle of the rotation member 151 is determined by the amount of movement of 151, the oil supply nozzle FZa for light oil can be more easily inserted into the opening / closing devices 10a and 10b during refueling, and the light oil supply nozzle FZa for light oil is accidentally inserted. Can be reduced.

(5) -3-2 The springs 153 and 157 move their positions relative to the tank opening forming member 11 to the initial positions in a state where the oil supply nozzle FZ is not inserted into the opening / closing devices 10a and 10b by their urging force. Move. Therefore, when the fueling nozzle FZ is inserted into the opening / closing device 10, the center of the fueling nozzle FZ is easily inserted into the center of the insertion passage 11Pa.

(5) -3-3 Since the first spiral portion 153a and the second spiral portion 153b of the spring 153 are formed integrally with the rotating member contact portion 153c, the number of parts of the opening / closing device 10a can be reduced. it can.

(5) -3-4 Since the curved surface formed by the curved surface 151a and the rib 151c is more likely to come into contact with the tip of the oil supply nozzle FZ, the center of the oil supply nozzle FZ can be made closer to the axis OL2 passing through the center of the rotating member 151. Become. Thereby, the center of the fueling nozzle FZ is easily inserted by the center of the insertion passage 11Pa.

(6) Other Embodiments 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.

(6) -1 In the above-described embodiment, the nozzle detection member 81 and the lock member 91 are integrally formed.

(6) -2 In the above embodiment, the rotation member 51 has been described with respect to the configuration for closing the insertion opening 32e. You may comprise with a member.

(6) -3 In the above-described embodiment, the oil supply nozzle can be inserted only to a position that does not reach the opening / closing member 61 of the inlet opening / closing mechanism 60. The opening / closing operation of the opening / closing member 61 may be performed smoothly by applying the tip of the fueling nozzle to a predetermined position of the opening / closing member 61 of the inlet opening / closing mechanism 60.

(6) -4 In the second embodiment, the position along the axis of the shaft support portion 52 of the rotating member 151 relative to the tank opening forming member 11 is changed by the spring 153 and the spring 157, but this is not restrictive. Instead of the spring, an elastic body such as rubber or a space where nothing is formed may be arranged, or a plurality of members may be combined.

(6) -5 In the second embodiment, the rotating member contact portion 153 c that rotates the rotating member 151 around the axis of the shaft support portion 52, and the rotation member 151 along the axis of the shaft support portion 52. The first spiral portion 153a and the second spiral portion 153b that move the first and second spiral portions 153b are configured integrally, but are not limited thereto, and may be configured separately. Since the rotating member contact portion 153c, the first spiral portion 153a, and the second spiral portion 153b are configured separately, the degree of freedom in designing the opening / closing device 10a is improved. Moreover, the structure which moves the rotation member 151 along the axis | shaft of the shaft support part 52 does not need to be comprised by two parts (member) like the 1st spiral part 153a and the 2nd spiral part 153b. You may be comprised by one part or three or more parts.

(6) -6 In the second mode of the second embodiment, the curved surface 151a and the rib 151c detect the load when the fuel supply nozzle FZ contacts the rotating member 151. Various modifications are possible. For example, the rib 151c is not formed on the rotating member 151, and the load may be detected only by the curved surface 151a. Alternatively, the curved surface 151a may be formed in a flat shape similar to the flat surface 151d, and the load may be detected by the rib 151c. May be. In addition, the rib 151c is formed at a part of the entire circumference where the curved surface 151a is formed, but may be formed along the entire circumference of the curved surface 151a, or a different one of the entire collection of the curved surface 151a. You may form along a part. Further, the curved surface 151a and the rib 151c do not need to form a continuous curved surface, and may form a discontinuous curved surface or a stepped portion. In addition, the rib 151c is formed in contrast to the central axis OL1. However, the rib 151c is not necessarily formed in contrast, and is formed separately at a plurality of locations along the entire circumference of the curved surface 151a. Also good. Further, the depth of the curved surface 151a and the height of the rib 151c can be variously modified. Moreover, the rib 151c does not need to be formed integrally with the rotating member 151, and may be configured to be detachable from the rotating member 151 with a screw or a bolt.

DESCRIPTION OF SYMBOLS 10 ... Opening / closing device of fuel tank 11 ... Tank opening formation member 11P ... Fuel passage 11Pa ... Insertion passage 20 ... Passage formation member 21a ... Reduced diameter part 21b ... Straight pipe part 30 ... Insertion passage formation member 32 ... Cover member 32a ... Side wall part 32b ... Upper wall 32d ... Opening 32e ... Insertion opening 32f ... Shaft support 34 ... Passage forming member 34a ... Large diameter 34b ... Inclined 34c ... Small diameter 34e ... Shaft support 34f ... Support 40 ... Injection port forming member DESCRIPTION OF SYMBOLS 41 ... Opening part 41a ... Injection port 42 ... Supporting member 50 ... Insertion side opening / closing mechanism 51 ... Opening / closing member 51a ... Curved surface 51b ... Restriction protrusion 52 ... Shaft support part 53 ... Spring 60 ... Injection port opening / closing mechanism 61 ... Opening / closing member 62 ... Bearing part 63 ... Spring 64 ... Gasket 70 ... Opening restriction mechanism 80 ... Nozzle detection mechanism 81 ... Nozzle detection member 82 ... Shaft body 83 ... Introduction push Part 83a ... Pressing body 83b ... Pressing slope 84 ... Spring 84a ... Tip part 90 ... Opening restriction member 91 ... Lock member 91a ... Connecting part 91b ... Regulating part 151 ... Rotating member 151a ... Curved surface 151c ... Rib 151d ... Plane 153 ... Spring 153a ... 1st spiral part 153b ... 2nd spiral part 153c ... Rotating member contact part 157 ... Spring 157a ... 1st spiral part 157b ... 2nd spiral part 157c ... Rotating member contact part BP ... Substrate Db ... Outer diameter FL ... Fueling lid FLa ... Lid main body FLb ... Hinges FR ... Fueling chamber FZ ... Fueling nozzle OL1 ... Center axis OL2 ... Axis

Claims (11)

In a fuel tank opening and closing device having a fuel passage (11P) in which a fuel nozzle is inserted and fuel supplied from the fuel nozzle is guided to the fuel tank,
A tank opening forming member (11) having the fuel passage (11P);
The fuel passage (11P) is disposed in the fuel passage (11P) so as to block at least a part of the fuel passage (11P), and is rotatably supported by the tank opening forming member (11) at one end thereof. A rotating member (51) that rotates by being pushed at the tip;
A nozzle that is arranged in the fuel passage (11P) on the fuel tank side from the rotating member (51) and is movable in a direction crossing the insertion direction of the fuel nozzle by being pushed by the tip of the fuel nozzle. A detection member (81);
Between the free end side which is the other end of the rotating member (51) and between the back side of the rotating member (51) where the tip of the oil supply nozzle does not hit and the tank opening forming member (11) A locking member (91) having a regulating portion (91b) disposed;
With
The restricting portion (91b) determines the position of the back surface side of the rotating member (51) according to the amount of movement of the nozzle detecting member (81) when pressed by the tip of the oil supply nozzle (FZ). Configured to change between a regulated position and a non-regulated position,
When the restricting portion (91b) is in the restricting position, the tank opening forming member (11) receives the opening force of the rotating member (51) via the restricting portion (91b). Making the opening angle of the rotating member (51) smaller than when the restricting portion (91b) is in the non-regulating position;
A fuel tank opening and closing device. The fuel tank opening and closing device according to claim 1,
The restriction portion (91b) is a fuel tank configured to change the restriction position and the non-restriction position by advancing and retreating in the same direction as the shaft that rotatably supports the turning member (51). Switchgear. The fuel tank opening and closing device according to claim 1 or 2,
The fuel tank opening and closing device, wherein the lock member (91) and the nozzle detection member (81) are integrally formed and are rotatably supported by the tank opening forming member (11). The fuel tank opening and closing device according to claim 1 or 3,
The nozzle detection member (81) includes a spring (84) for returning to an initial position that is not pushed by the fuel supply nozzle, and the spring (84) is formed integrally with the nozzle detection member (81). A fuel tank opening and closing device. The fuel tank opening and closing device according to any one of claims 1 to 4,
The rotating member (51) is a fuel tank opening and closing device that is a member that opens and closes an insertion opening (32e) that is an opening of the fuel passage (11P). The fuel tank opening and closing device according to any one of claims 1 to 5,
Of the fuel passage (11P), an inlet opening / closing mechanism (60) is provided on the fuel tank side from the nozzle detection member (81) and the lock member (91),
The inlet opening / closing mechanism (60) includes an opening / closing member (61) for opening / closing the inlet (41a) of the fuel passage (11P), an opening peripheral portion of the inlet (41a), and the opening / closing member (61). A fuel tank opening and closing device comprising a gasket (64) for sealing between the two. The fuel tank opening and closing device according to any one of claims 1 to 6,
The rotating member (151) advances and retreats along a first axis that is an axis that rotatably supports the rotating member (151) with respect to the tank opening forming member (11).
The restriction portion (91b) is orthogonal to the amount of movement of the nozzle detection member (81) when pushed by the tip of the fuel supply nozzle (FZ) and the first axis passing through the center of the fuel passage (11P). The position of the rotation member (151) is changed between the restriction position and the non-regulation position according to the amount of displacement of the rotation member (151) that has moved forward and backward with respect to the plane to be moved. A fuel tank opening and closing device. The fuel tank opening and closing device according to claim 7, further comprising:
When no external force is applied to the tank opening forming member (11), the rotation member (151) relative to the tank opening forming member (11) is returned to a preset position. A fuel tank opening and closing device comprising positioning members (153a, 153b) for positioning the moving member (151). The fuel tank opening and closing device according to claim 8, further comprising:
A fuel tank opening and closing device comprising a rotation support member (153c) configured to rotate integrally with the positioning members (153a, 153b) and for rotating the rotation member (151). The fuel tank opening and closing device according to claim 8, further comprising:
A fuel tank opening and closing device comprising a rotation support member configured to rotate the rotation member (151) separately from the positioning member. The fuel tank opening and closing device according to any one of claims 7 to 10, further comprising:
Nozzle load detector (151a) for detecting a load applied from the fuel nozzle (FZ) to the rotating member (151) when the rotating member (151) is pushed at the tip of the oil supplying nozzle (FZ). 151c),
The fuel tank opening and closing device in which the displacement amount of the rotating member (151) is determined based on the detected load.

Images