WO2022075284A1

WO2022075284A1 - Filling port structure

Info

Publication number: WO2022075284A1
Application number: PCT/JP2021/036707
Authority: WO
Inventors: 高広岩田; 正博山本; 洋大泉; 計人位田; 龍之介黒石; 茂樹大野
Original assignee: 三菱自動車工業株式会社
Priority date: 2020-10-09
Filing date: 2021-10-04
Publication date: 2022-04-14
Also published as: JPWO2022075284A1; JP7332056B2

Abstract

A filling port structure comprises: an accommodation chamber positioned on the inner side of an opening provided in a body outer plate of a vehicle; a filler neck that passes through a panel hole provided in the bottom surface of the accommodation chamber and opens inside the accommodation chamber; and a boot that closes the gap between the filler neck and the panel hole and fixes the filler neck to the accommodation chamber. The boot has: a tubular main body attached to the outer peripheral surface of the filler neck and fitted to the panel hole; an umbrella part that is extended on the opening side and above the accommodation chamber from the upper part of the main body, and covers the upper side of the opening part of the filler neck; and a groove formed at the boundary between the umbrella part and the main body.

Description

Structure of the supply port

The present invention relates to the structure of a supply port of a filler pipe connected to an in-vehicle tank.

One end of the filler pipe is connected to an in-vehicle tank (for example, a fuel tank or a urea water tank), and the other end of the filler neck is fixed in a storage chamber provided on the body outer plate of the vehicle. The filler neck opens in the containment chamber, and the liquid (for example, fuel or urea water) replenished from this opening (replenishment port) is stored in the in-vehicle tank through the filler pipe. Generally, a cap is attached to this supply port to prevent foreign matter from entering. In addition, the opening of the containment chamber is also closed by a filler door (cover, lid, etc.) except during replenishment, which also prevents foreign matter from entering. However, even if the filler door is provided, the water collected in the filler door may infiltrate into the containment chamber when the filler door is opened. As a countermeasure, for example, as described in Patent Document 1, the filler door should be eliminated. A structure that can be used is proposed.

Japanese Patent Application Laid-Open No. 2018-43711

However, with the structure of Patent Document 1 described above, it becomes impossible for the filler door to prevent the adhesion of foreign substances such as sand and dust when the vehicle is running. Further, even in a vehicle equipped with a filler door, water such as rainwater or washing water may flow through the body outer panel and enter the containment chamber through the gap of the closed filler door. In this case, the infiltrated water may adhere to the filler neck or the cap and corrode the area around the mouth of the filler neck.

The structure of the supply port of this case was devised in view of such problems, and one of the purposes is to prevent corrosion around the mouth of the filler neck. Not limited to this purpose, it is also an action and effect derived by each configuration shown in the embodiment for carrying out the invention described later, and it is also for other purposes of this case to exert an action and effect which cannot be obtained by the conventional technique. be.

(1) The structure of the supply port portion disclosed here is the structure of the supply port portion on the other end side of the filler pipe whose one end is connected to the in-vehicle tank, and is inside the opening provided in the body outer plate of the vehicle. The containment chamber arranged in the accommodation chamber, the filler neck opened in the containment chamber through the panel hole provided in the bottom surface of the accommodation chamber, and the gap between the filler neck and the panel hole are closed and the filler neck is closed. The boots to be fixed to the storage chamber are provided. The boots have a tubular main body attached to the outer peripheral surface of the filler neck and fitted into the panel hole, and the filler extending from the upper part of the main body to the opening side and upward of the storage chamber. It has an umbrella portion that covers the upper part of the opening of the neck, and a groove formed at a boundary between the umbrella portion and the main body portion.

(2) The shape of the umbrella portion when the opening is viewed from the front is an arc shape along the opening, and the length of the strings of the umbrella portion is longer than the outer diameter of the opening. Is preferable.
(3) In this case, it is preferable that the groove is formed in a V shape at the base of the umbrella portion and the main body portion, and extends in the arc direction along the root portion of the umbrella portion.

(4) The boots are projected from the lower part of the main body portion to the lower tongue portion extending from the lower portion of the main body portion to the opening side and upward of the accommodation chamber and receiving the liquid falling from the opening portion, and the lower surface of the tip of the lower tongue portion. It is preferable to have a convex portion.
(5) The boot is preferably an integral piece made of an elastic member.

According to the disclosed supply port structure, it is possible to prevent corrosion around the mouth of the filler neck.

It is a figure which shows the vehicle which provided the structure of the supply port part which concerns on one Embodiment, and the supply port part. FIG. 1 is a cross-sectional view taken along the line AA of FIG. It is a B direction arrow view of FIG. It is a D direction arrow view of FIG. It is sectional drawing which shows the state when the Fila neck is fitted.

The structure of the supply port portion as an embodiment will be described with reference to the drawings. The embodiments shown below are merely examples, and there is no intention of excluding the application of various modifications and techniques not specified in the following embodiments. Each configuration of the embodiment can be variously modified and implemented without departing from the gist thereof. In addition, it can be selected as needed, or it can be combined as appropriate.

In the following explanation, the forward direction of the vehicle is the front (front of the vehicle), the opposite side is the rear (rear of the vehicle), and the left and right are determined based on the front. Further, the direction of gravity will be described as downward, and the opposite will be described as upward. Further, in the left-right direction (vehicle width direction) of the vehicle, the passenger compartment side (inside the vehicle) is referred to as "inside", and the opposite (outside the vehicle) is referred to as "outside".

[1. Constitution]
FIG. 1 is a diagram showing a schematic left side view of a vehicle 1 having the structure of the supply port portion 3 according to the present embodiment and an enlarged view of the supply port portion 3. The supply port portion 3 of the present embodiment is provided on the body outer plate 2 (for example, the rear fender) on the side surface of the vehicle 1. In the enlarged view in FIG. 1, the filler door 5 and the filler cap 7 (described later) are omitted. The supply port portion 3 is a portion provided on the other end side of a filler pipe (both not shown) having one end connected to the vehicle-mounted tank. Examples of the in-vehicle tank include a fuel tank and a urea water tank. In the present embodiment, the supply port 3 is provided on the left side surface of the vehicle 1, but the position of the supply port 3 is not limited to this.

The supply port 3 is opened in the accommodation chamber 6 through the accommodation chamber 6 arranged inside the opening provided in the body outer plate 2 and the panel hole 6c provided in the bottom surface 6a of the accommodation chamber 6. A boot 10 for closing the gap between the filler neck 4 and the panel neck 4 and the panel hole 6c and fixing the filler neck 4 to the accommodation chamber 6 is provided. The accommodation chamber 6 is divided by a housing portion that opens toward the outside of the vehicle (here, the left side) and a filler door 5 that closes the opening of the housing portion. As shown in FIG. 2, the bottom surface 6a of the accommodation chamber 6 is a surface facing the filler door 5 and has a panel hole 6c through which the filler neck 4 is inserted. Since the filler door 5 is provided in the supply port portion 3 of the present embodiment, it is possible to prevent foreign matter such as sand and dust from adhering to the vehicle when the vehicle is running.

The filler neck 4 is an end portion on the other end side (supply port side) of the filler pipe, and extends from the inside of the vehicle 1 to the outside and upward of the vehicle through the panel hole 6c. As shown in FIGS. 1 and 2, the opening 4a (that is, the supply port) of the filler neck 4 has a circular shape when the opening 4a is viewed from the front (front view), and is in a normal state other than during replenishment. Then, it is closed by the filler cap 7. At the time of replenishment, the filler cap 7 attached to the opening 4a is removed, and a gun (not shown) for replenishing liquid (fuel or urea water) is inserted into the vehicle-mounted tank.

As shown in FIG. 2, the boot 10 is an elastic component attached to a portion near the tip of the outer peripheral surface of the filler neck 4, and has a tubular shape attached to the outer peripheral surface of the filler neck 4 and fitted into the panel hole 6c. It has a main body portion 11, an umbrella portion 12 that covers the upper part of the opening 4a of the filler neck 4, and a groove 13 formed at the boundary between the main body portion 11 and the umbrella portion 12. The boot 10 of the present embodiment is an integral piece made of an elastic member (for example, rubber).

The main body portion 11 is substantially concentric with the central axis of the filler neck 4 and is arranged with a gap from the outer peripheral surface of the filler neck 4. At one end in the axial direction of the main body 11 (the end on the opening side of the accommodation chamber 6), a first fixing portion 11a for fixing the boot 10 to the filler neck 4 is provided. At the other end of the main body 11 in the axial direction, a second fixing portion 11b for fixing the boot 10 to the bottom surface 6a of the accommodation chamber 6 is provided. The main body portion 11 of the present embodiment is formed in a substantially cylindrical shape whose diameter decreases from the second fixing portion 11b toward the first fixing portion 11a.

The umbrella portion 12 extends from the upper part of the main body portion 11 toward the opening side and upward of the accommodation chamber 6, and water such as rainwater and washing water transmitted from the body outer plate 2 reaches the skirt portion 7a of the filler cap 7. It functions as an eave to prevent it from falling. As shown in FIG. 1, the umbrella portion 12 of the present embodiment has an arc shape along the opening 4a when the opening 4a of the filler neck 4 is viewed from the front. The length of the string of the umbrella portion 12, that is, the length when both edges of the umbrella portion 12 are connected by a virtual straight line (the length in the front-rear direction of the vehicle) is the outer diameter of the opening 4a of the filler neck 4. Longer than. As a result, as shown in FIG. 3, in the top view, the opening 4a and the skirt portion 7a of the filler cap 7 are hidden by the umbrella portion 12, in other words, the umbrella portion 12 is above the opening 4a and the filler cap 7. It will be completely covered from. In FIG. 3, the accommodation chamber 6 is omitted.

As shown in FIGS. 2 and 4, the boot 10 has a groove 13 recessed downward at the boundary portion between the main body portion 11 and the umbrella portion 12. As shown by the broken line arrows in FIGS. 2 and 4, the boot 10 has a shape that guides the water that has fallen on the upper surface of the umbrella portion 12 to the groove 13 formed at the boundary between the umbrella portion 12 and the main body portion 11. There is. The broken line arrow in the figure indicates the main transmission path of water transmitted from above. The groove 13 of the present embodiment is formed in a V shape by the base of the umbrella portion 12 and the main body portion 11, and extends in the arc direction along the root portion of the umbrella portion 12.

The groove 13 of the present embodiment is formed by the difference between the inclination of the outer peripheral surface of the tubular portion of the main body portion 11 and the inclination of the umbrella portion 12 with respect to the central axis C of the filler neck 4 (boots 10). The outer peripheral surface of the main body 11 is inclined with respect to the central axis C so as to shrink in diameter toward the outside of the vehicle, whereas the upper surface of the umbrella portion 12 goes from the root of the umbrella portion 12 to the outside of the vehicle. It is inclined with respect to the central axis C so as to increase the diameter. As a result, a V-shaped groove 13 is formed between the base of the umbrella portion 12 and the main body portion 11.

In the umbrella portion 12 of the present embodiment, the inclination angle of the upper surface with respect to the central axis C is different between the portion on the opening side of the accommodation chamber 6 and the base portion on the main body portion 11. Specifically, the upper surface of the opening-side portion has an inclination angle substantially parallel to the side surface 6b of the accommodation chamber 6, and is bent in the middle from the opening-side portion toward the root portion. As a result, the water that has entered the storage chamber 6 through the body outer plate 2 falls onto the upper surface of the umbrella portion 12, and then is easily guided to the groove 13. In particular, when the side surface 6b of the accommodation chamber 6 is fixed to the body outer plate 2 by spot welding, water tends to drip at the spot points 6d indicated by the white circles in FIG. 2. Water can also be flushed.

As shown in FIGS. 1, 2 and 4, the boot 10 of the present embodiment has a curved lower tongue portion 14 extending upward from the lower portion of the main body portion 11 on the opening side and upward of the accommodation chamber 6, and a lower tongue portion. It has a convex portion 15 projecting from the lower surface of the tip of 14. The lower tongue portion 14 functions as a saucer for receiving the liquid (fuel or urea water) that has fallen from the opening 4a during replenishment. A through hole 14a for discharging the liquid received by the lower tongue portion 14 is provided at substantially the center of the root portion (boundary portion with the main body portion 11) of the lower tongue portion 14.

The convex portion 15 is a portion for improving the outfitting property when the filler neck 4 and the boot 10 are attached. Since the boot 10 of the present embodiment includes the boot-integrated umbrella portion 12 and the lower tongue portion 14, the outer diameter of the tip side of the boot 10 is larger than the outer diameter of the main body portion 11 (upper to the main body portion 11). It has a shape (spreading in the radial direction both downward and downward). Therefore, it is difficult to insert the filler neck 4 to which the boot 10 is fixed into the panel hole 6c as compared with the boot not provided with the umbrella portion 12 and the lower tongue portion 14.

On the other hand, the boot 10 of the present embodiment has a convex portion 15 (projection) that is convex downward at substantially the center of the lower surface of the tip of the lower tongue portion 14. Therefore, as shown in FIG. 5, by hooking the convex portion 15 between the terminal portion of the filler neck 4 and the first fixing portion 11a of the boot 10, the lower tongue portion 14 can be held in a folded state. In this state, the outer diameter on the tip side of the boot can be made smaller than in the state before folding, so that the filler neck 4 can be easily inserted into the panel hole 6c, and the fitting performance is improved. Further, after inserting the filler neck 4 into the panel hole 6c, if the hook of the convex portion 15 is removed, a finger can be hooked on the convex portion 15 and the lower tongue portion 14 can be pulled from the outside of the vehicle, which also improves the fitting property. do.

[2. Action, effect]
(1) According to the structure of the supply port portion 3 described above, the water (rainwater or washing water) transmitted from the body outer plate 2 is guided to the groove 13 through the upper surface of the umbrella portion 12, and the opening 4a of the filler neck 4 is guided. And the skirt portion 7a of the filler cap 7 can be discharged without being flooded. This makes it possible to prevent corrosion around the mouth of the filler neck 4. Further, when the filler neck 4 to which the boots 10 are fixed is fixed to the accommodation chamber 6, the boots 10 can be bent along the groove 13, so that the fitting out property can be improved.

(2) The umbrella portion 12 is formed in an arc shape when viewed from the front, and the length of the chord of the umbrella portion 12 is longer than the outer diameter of the opening 4a. Therefore, the entire opening 4a of the filler neck 4 is formed. Can be covered with the umbrella portion 12. Therefore, it is possible to further avoid water damage to the opening 4a of the filler neck 4 and the skirt portion 7a of the filler cap 7, and further prevent corrosion around the mouth of the filler neck 4.

(3) The groove 13 is formed in a V shape by the base of the umbrella portion 12 and the main body portion 11, and extends in the arc direction along the root portion of the umbrella portion 12, so that the umbrella portion is formed. The water received on the upper surface of the 12 can be collected in the groove 13 and flowed in the arc direction. As a result, water can be further avoided from the opening 4a of the filler neck 4 and the skirt portion 7a of the filler cap 7, and corrosion around the mouth of the filler neck 4 can be further prevented.

(4) Since the boot 10 is provided with a convex portion 15 on the lower surface of the tip of the lower tongue portion 14, the convex portion 15 is hooked between the filler neck 4 and the main body portion 11 to provide the lower tongue portion 14. It can be held in a folded state, and the filler neck 4 can be inserted into the storage chamber 6 in this state. Therefore, it is possible to improve the fitting out. Further, if the folded lower tongue portion 14 is released, the convex portion 15 can be pulled from the outside of the vehicle (inside the accommodation chamber 6), so that the fitting out property can also be improved.
(5) Since the boot 10 is an integral piece made of an elastic member, it is easy to mold at the time of manufacturing, and it is easy to be deformed at the time of fitting, so that the fitting property can be improved.

[3. others]
The structure of the supply port portion 3 described above is an example, and is not limited to the configuration described above.
For example, the panel hole 6c may be formed to be large and the convex portion 15 may be omitted. Further, the lower tongue portion 14 may be omitted by separately providing a portion for preventing liquid leakage during replenishment.
Further, the shape of the umbrella portion 12 is preferably an arc shape when viewed from the front, but may be formed in a spherical shape (dome shape), for example. Further, the umbrella portion 12 may not have a curved surface shape, but may have a flat shape such as a triangular roof when viewed from the front. In any case, the umbrella portion 12 may have a shape that can guide the water received on the upper surface thereof to the groove 13 formed at the boundary between the umbrella portion 12 and the main body portion 11.
Further, the shape of the groove 13 is not limited to the V shape, and may be a U shape or a U shape. The cross-sectional shape of the groove 13 extending in the arc direction may not be uniform in the extending direction.
Other configurations of the supply port portion 3 (shape of the accommodation chamber 6, presence / absence of the filler door 5, shape / presence / absence of the filler cap 7) are not limited to the configuration of the above-described embodiment.

This application is based on Japanese Patent Application No. 2020-171253 filed on October 9, 2020, the contents of which are incorporated herein by reference.

1 Vehicle 2 Body outer panel 3 Replenishment port 4 Phila neck 4a Opening (replenishment port)
5 Philadoor 6 Storage chamber 6a Bottom 6b Side

6c Panel hole

6d Spot point 7 Phila cap 7a Skirt part 10 Boot 11 Main body part 11a First fixing part 11b Second fixing part 12 Umbrella part 13 Groove 14 Lower tongue part 14a Through hole 15 Convex Part C central axis

Claims

One end is the structure of the supply port on the other end side of the filler pipe connected to the in-vehicle tank.
A containment chamber located inside the opening provided in the body skin of the vehicle,
A filler neck opened in the containment chamber through a panel hole provided in the bottom surface of the containment chamber.
A boot that closes the gap between the filler neck and the panel hole and fixes the filler neck to the storage chamber is provided.
The boot has a tubular main body attached to the outer peripheral surface of the filler neck and fitted into the panel hole, and the filler extending from the upper part of the main body to the opening side and upward of the storage chamber. A structure of a supply port portion having an umbrella portion that covers the upper part of the opening of the neck and a groove formed at a boundary between the umbrella portion and the main body portion.
The shape of the umbrella portion when the opening is viewed from the front is an arc shape along the opening.
The structure of the supply port portion according to claim 1, wherein the length of the chord of the umbrella portion is longer than the outer diameter of the opening portion.
The second aspect of the present invention, wherein the groove is formed in a V shape at the base of the umbrella portion and the main body portion, and is extended in an arc direction along the root portion of the umbrella portion. Structure of the supply port.
The boots have a lower tongue portion extending from the lower part of the main body portion to the opening side and upward of the accommodation chamber to receive liquid falling from the opening portion, and a convex portion protruding from the lower surface of the tip of the lower tongue portion. The structure of the supply port portion according to any one of claims 1 to 3, wherein the supply port portion is characterized by having.
The structure of the supply port portion according to any one of claims 1 to 4, wherein the boot is an integral piece made of an elastic member.