Oil supply section structure of fuel tank

Abstract

To provide an oil supply section structure of a fuel tank which can prevent contamination of dust in an oil supply port while preventing floating of an oil supply lid by reaction force by a cover attached to the oil supply lid.SOLUTION: An oil supply section structure 10 of a fuel tank includes: an oil supply port body 20 constituting an oil supply port 21 into which an oil supply gun for oil supply to the fuel tank mounted in a vehicle is inserted; an oil supply lid 30 for opening / closing the oil supply port body; an oil supply port member 40 which is provided in the oil supply port and has an insertion port 41 into which the oil supply gun can be inserted; an opening / closing valve 50 which is arranged in the oil supply port body and can open / close the insertion port; and a cylindrical cover 60 which is mounted in the oil supply lid and extends in a direction to the oil supply port member in a state where the oil supply lid closes the oil supply port body. In the cover, an inner diameter of a tip 61 in a direction to the oil supply port member is formed larger than an outer diameter of the oil supply port member, and the tip is separated from the oil supply port member.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fuel filler structure for a fuel tank. [Background technology]

[0002] Patent Document 1 listed below discloses a fuel filler structure having a capless fuel filler opening. A fuel filler main body constituting the fuel filler opening is opened and closed by a fuel filler lid. A cylindrical dust cover is attached to the rear surface of the fuel filler lid. The dust cover is made of an elastic material. When the fuel filler lid closes the fuel filler main body, the dust cover is pressed against the fuel filler opening. This prevents dust from entering the fuel filler opening (see Figures 15 and 16 of Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] U.S. Patent No. 6,554,150 Summary of the Invention [Problem to be solved by the invention]

[0004] In the technology disclosed in Patent Document 1, when the fuel filler body is closed with the fuel filler lid, the dust cover is pressed against the fuel filler opening, which may cause a reaction force from the dust cover to cause the fuel filler lid to float.

[0005] Therefore, an object of the present invention is to provide a fuel tank fuel filler structure that can prevent the fuel filler lid from floating up due to the reaction force of a cover attached to the fuel filler lid, while preventing dust from entering the fuel filler opening. [Means for solving the problem]

[0006] In order to achieve the above object, the fuel filler structure of the present invention includes a fuel filler body constituting a fuel filler port into which a fuel filler gun for filling a fuel tank mounted on a vehicle is inserted, a fuel filler lid for opening and closing the fuel filler body, a fuel filler member provided in the fuel filler port and having an insertion opening through which the fuel filler gun can be inserted, an opening / closing valve provided inside the fuel filler body for opening and closing the insertion opening, and a cylindrical cover attached to the fuel filler lid and extending in a direction toward the fuel filler member when the fuel filler lid is in a state where the fuel filler body is closed. The inner diameter of the tip of the cover in the direction toward the fuel filler member is larger than the outer diameter of the fuel filler member, and the tip and the fuel filler member are spaced apart. Effect of the Invention

[0007] According to the present invention, when the fuel filler body is closed with the fuel filler lid, the cover is in a floating state relative to the fuel filler member, so that no reaction force is generated by the cover, and it is possible to prevent the fuel filler lid from floating up and to prevent dust from entering the fuel filler opening. [Brief description of the drawings]

[0008] [Figure 1] 2 is a cross-sectional side view of the fuel filler structure of the fuel tank. FIG. [Diagram 2] FIG. 4 is a perspective view showing the fuel filler lid with a cover attached. [Diagram 3] FIG. 4 is a perspective view showing the appearance of a base end portion of a cover. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiments for carrying out the present invention will be described in detail with reference to the drawings. The embodiments shown here are merely illustrative in order to embody the technical idea of ​​the present invention, and do not limit the present invention. Therefore, all other embodiments, examples, and operational techniques that can be conceived by those skilled in the art without departing from the gist of the present invention are included in the scope and gist of the present invention, and are included in the scope of the inventions described in the claims and their equivalents.

[0010] In addition, for the convenience of illustration and ease of understanding, the drawings attached to this specification may be represented diagrammatically with the scale, aspect ratio, shape, etc. appropriately changed from the actual product; however, these are merely examples and are not intended to limit the interpretation of the present invention.

[0011] In this specification, ordinal numbers such as "first", "second", etc. may be used. However, unless otherwise specified, these ordinal numbers are used to identify components for the convenience of explanation, and do not specify the number or order.

[0012] <Embodiment> 1 shows a fuel filler structure 10 for a fuel tank in a side view. The fuel filler structure 10 of this embodiment is a so-called capless structure, which does not require a screw-on cap for closing a fuel filler opening 21. The fuel filler structure 10 is applied to an upper portion of a fuel filler pipe (neither of which are shown) connected to a fuel tank.

[0013] The fuel tank filling section structure 10 has a fuel filler main body 20 that constitutes a fuel filler opening 21 into which a fuel filler gun (not shown) for filling a fuel tank mounted on a vehicle is inserted, and a fuel filler lid 30 that opens and closes the fuel filler main body 20.

[0014] The fuel filler main body 20 is connected to an opening 11 formed in a side surface of the vehicle body. The fuel filler main body 20 has a fuel filler opening 21, a base portion 22 connected to the opening 11, an adapter portion 23 connected to the base portion 22, and an elastic member 24 connecting the adapter portion 23 and the fuel filler opening 21. The fuel filler opening 21 is arranged tilted obliquely upward. The fuel filler lid 30 has a hinge portion 31 (see FIG. 2). The fuel filler lid 30 is attached to the opening 11 via the hinge portion 31 so that the fuel filler main body 20 can be opened and closed freely. A spring member (not shown) is attached to the hinge portion 31. The spring member biases the fuel filler lid 30 with a spring force in a direction to close the fuel filler main body 20.

[0015] The fuel filler structure 10 also has a fuel filler member 40 having an insertion opening 41 provided in the fuel filler opening 21 and through which a fuel filler gun can be inserted, and an opening / closing valve 50 arranged inside the fuel filler main body 20 and capable of opening and closing the insertion opening 41.

[0016] The fuel filler port member 40 is attached to the tip of the fuel filler port 21 (the side facing the fuel filler lid 30). The opening and closing valve 50 is opened by inserting a fuel filler gun into the insertion port 41.

[0017] The fuel filler structure 10 further has a cylindrical cover 60 attached to the fuel filler lid 30. The cover 60 extends in a direction toward the fuel filler port member 40 when the fuel filler lid 30 closes the fuel filler port body 20. As shown in FIG. 1 , the cover 60 is formed such that the inner diameter φ1 of a tip portion 61 toward the fuel filler port member 40 is larger than the outer diameter φ2 of the fuel filler port member 40. The tip portion 61 of the cover 60 is spaced apart from the fuel filler port member 40 even when the fuel filler lid 30 closes the fuel filler port body 20. The cover 60 prevents dust such as sand and small foreign objects from entering the fuel filler port 21 through the insertion opening 41.

[0018] 1, when the fuel filler lid 30 is used to close the fuel filler main body 20, the cover 60 is in a floating state relative to the fuel filler member 40. Therefore, no reaction force is generated by the cover 60. Therefore, it is possible to prevent the fuel filler lid 30 from floating up, while also preventing dust from entering the fuel filler opening 21.

[0019] 1, the first straight line L1 is a straight line extending from the gap between the fuel filler main body 20 and the fuel filler lid 30 toward the upper end 41a of the insertion port 41. The second straight line L2 is a straight line extending from the gap between the fuel filler main body 20 and the fuel filler lid 30 toward the lower end 41b of the insertion port 41. The third straight line L3 is a straight line including the tip surface 40a of the fuel filler port member 40. The fourth straight line L4 is a straight line extending vertically upward from the upper end portion 40b of the fuel filler port member 40.

[0020] In a side view, the upper edge 61a of the tip portion 61 of the cover 60 overlaps with the first straight line L1. As a result, the cover 60 blocks the path (first straight line L1) from the gap between the fuel filler port body 20 and the fuel filler lid 30 toward the upper end 41a of the insertion port 41. For this reason, dust does not directly enter the insertion port 41. Therefore, it is possible to prevent dust from entering the fuel filler port 21.

[0021] In a side view, the lower end edge 61b of the tip portion 61 of the cover 60 overlaps with the second straight line L2. As a result, the cover 60 blocks the path (second straight line L2) from the gap between the fuel filler port body 20 and the fuel filler lid 30 toward the lower end 41b of the insertion port 41. For this reason, dust does not directly enter the insertion port 41. Therefore, it is possible to prevent dust from entering the fuel filler port 21.

[0022] In the cover 60, the lower edge 61b of the tip portion 61 overlaps with the third straight line L3 in a side view. This causes the cover 60 to block the path of the dust bouncing off the bottom surface 22a of the base portion 22 of the fuel filler main body 20 and heading toward the insertion port 41. This prevents dust from directly entering the insertion port 41. This makes it possible to prevent dust from entering the fuel filler port 21.

[0023] In a side view, the upper edge 61a of the tip portion 61 of the cover 60 overlaps with the fourth straight line L4. This blocks the path that would otherwise slide down the upper surface of the cover 60 and reach the upper end 40b of the fuel filler port member 40. This prevents dust from falling down the tip surface 40a of the fuel filler port member 40 and entering the insertion opening 41. This prevents dust from entering the fuel filler port 21.

[0024] The cover 60 is configured separately from the fuel filler lid 30. As shown in Fig. 3, the cover 60 has a clip 62 formed at its base end. The clip 62 has an engagement claw 63. As shown in Fig. 1, the clip 62 of the cover 60 is inserted into a clip hole 32 formed on the back surface of the fuel filler lid 30. The cover 60 is attached to the fuel filler lid 30 by the engagement claw 63 engaging with the end of the clip hole 32.

[0025] Because the cover 60 is configured separately from the fuel filler lid 30, the fuel filler structure 10 can be applied to either the fuel filler structure 10 having the cover 60 or the fuel filler structure 10 not having the cover 60, depending on the destination of the vehicle. For destinations where there is a high demand for preventing dust from entering, such as destinations where sand grains and the like are often blown up, the fuel filler structure 10 with the cover 60 attached to the fuel filler lid 30 is applied. For other destinations, the fuel filler structure 10 with the cover 60 not attached to the fuel filler lid 30 can be applied.

[0026] The above describes an embodiment of the fuel tank filling section structure 10 of the present invention, but the present invention is not limited to the above-mentioned configuration and can be modified as appropriate based on the description of the claims.

[0027] The following embodiments are also included within the scope of the present invention: a fuel tank filler structure 10 as described in claim 2 having the features of claim 3; a fuel tank filler structure 10 as described in claim 2 or claim 3 having the features of claim 4; a fuel tank filler structure 10 as described in any one of claims 2 to 4 having the features of claim 5; a fuel tank filler structure 10 as described in any one of claims 2 to 5 having the features of claim 6. [Explanation of symbols]

[0028] 10. Fuel supply structure 11 Opening 20 Fuel filler body 21 Fuel filler 22 Base 22a Bottom 23 Adapter part 24 Elastic member 30 Fuel filler lid 31 Hinge part 32 Clip hole 40 Fuel filler part 40a Tip surface 40b Upper end 41 Insertion port 41a top end 41b Bottom end 50 On-off valve 60 Cover 61 Tip 61a Upper edge 61b Lower edge 62 clips 63 Engagement Claw φ1 Inner diameter of the tip of the cover φ2 Outer diameter of oil filler port

Claims

1. a fuel filler body constituting a fuel filler port into which a fuel filler gun for filling a fuel tank mounted on a vehicle is inserted; A fuel filler lid for opening and closing the fuel filler body; a fuel filler member provided in the fuel filler opening and having an insertion opening into which the fuel filler gun can be inserted; an opening / closing valve that is disposed inside the fuel filler body and is capable of opening and closing the insertion port; a cylindrical cover attached to the fuel filler lid and extending in a direction toward the fuel filler member when the fuel filler lid closes the fuel filler body, a fuel filler structure for a fuel tank, wherein the inner diameter of a tip portion of the cover in the direction toward the fuel filler member is larger than the outer diameter of the fuel filler member, and the tip portion and the fuel filler member are spaced apart.

2. The fuel filler opening is disposed so as to be inclined obliquely upward, 2. The fuel filler structure of a fuel tank according to claim 1, wherein an upper edge of the tip portion of the cover overlaps a first straight line extending from a gap between the fuel filler body and the fuel filler lid toward an upper end of the insertion port in a side view.

3. The fuel filler opening is disposed so as to be inclined obliquely upward, 2. The fuel filler structure of a fuel tank according to claim 1, wherein a lower edge of the tip portion of the cover overlaps a second straight line extending from a gap between the fuel filler body and the fuel filler lid toward the lower end of the insertion port in a side view.

4. The fuel filler opening is disposed so as to be inclined obliquely upward, 2. The fuel filler structure for a fuel tank according to claim 1, wherein a lower edge of the tip portion of the cover overlaps a third straight line including a tip surface of the fuel filler neck member in a side view.

5. The fuel filler opening is disposed so as to be inclined obliquely upward, 2. The fuel filler structure for a fuel tank according to claim 1, wherein an upper edge of the tip portion of the cover overlaps a fourth straight line extending vertically upward from an upper end of the fuel filler member in a side view.

6. 2. The fuel tank filler structure according to claim 1, wherein the cover is formed separately from the fuel filler lid.

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