Lid structure

Abstract

To secure a work space inside a tray to improve workability.SOLUTION: A fuel tank or a battery is installed on a vehicle. A lid structure (30) of the vehicle is provided with a tray (31) covering a circumference of an oil filler port of the fuel tank or of a connection port (27) of the battery and a lid (41) that opens and closes an opening of the tray exposing the oil filler port or the connection port. A protrusion part (62) protrudes from a portion of an inner peripheral surface of the tray to lock the lid, and the portion of the inner peripheral surface of the tray inclines toward an inner bottom surface of the tray to get way from a center line of the oil filler port or of the connection port.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a lid structure. [Background technology]

[0002] Saddle-type vehicles and the like are known to be equipped with a fuel lid that covers the filler opening of a fuel tank (see, for example, Patent Document 1). The base end of the fuel lid described in Patent Document 1 is swingably supported on a fuel tray, and a hook piece is provided at the open end of the fuel lid. A protrusion of a locking mechanism protrudes inward from the edge of the opening of the fuel tray, and the fuel lid is locked when the hook piece of the fuel lid catches on the protrusion of the locking mechanism. Furthermore, the fuel lid is unlocked when the protrusion of the locking mechanism disengages from the hook piece of the fuel lid. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-175312 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the lid structure described in Patent Document 1, the protrusion of the locking mechanism protrudes inward from the edge of the opening of the fuel tray, which can come into contact with the hand and become a hindrance when attaching or removing the fuel filler cap. To prevent the protrusion from coming into contact with the hand, a large clearance must be secured between the fuel filler opening and the protrusion. This problem also occurs when connecting an electrical connector to a connection port such as a charging port or power supply port.

[0005] The present invention has been made in view of the above points, and has as its object to provide a lid structure that can secure a working space inside the tray and improve workability. [Means for solving the problem]

[0006] One aspect of the lid structure of the present invention is a lid structure for a vehicle equipped with a fuel tank or a battery, and comprises a tray that covers the periphery of the fuel filler port of the fuel tank or the connection port of the battery, and a lid that opens and closes the opening of the tray that exposes the fuel filler port or the connection port, wherein a protrusion protrudes from a portion of the inner surface of the tray to lock the lid, and a portion of the inner surface of the tray is inclined toward the inner bottom surface of the tray, away from the center line of the fuel filler port or the connection port, thereby solving the above problem. [Effects of the Invention]

[0007] According to one aspect of the lid structure of the present invention, the protrusion is inclined by inclining a portion of the inner peripheral surface of the tray. Because the protrusion is positioned away from the center line of the fuel filler or connection port toward the inner bottom surface of the tray, the protrusion is less likely to come into contact with the worker's hand when attaching or detaching a fuel filler cap or connecting an electrical connector, improving workability. The clearance between the fuel filler or connection port and the protrusion can be reduced, allowing the fuel filler or connection port and the protrusion to be installed in a compact manner. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a side view of a saddle-ride type vehicle according to an embodiment of the present invention; [Figure 2] FIG. 2 is a rear view of the lid structure of the present embodiment. [Figure 3] 3 is a cross-sectional view of the lid structure of FIG. 2 taken along line AA. [Figure 4] 10A and 10B are diagrams illustrating the positional relationship between the lid and the charging port in this embodiment. [Figure 5] 10A and 10B are operation transition diagrams of the locking operation of the lid in the present embodiment.

[0009] A vehicle according to one aspect of the present invention is equipped with a fuel tank or a battery. In this vehicle lid structure, the periphery of the fuel tank's fuel filler port or battery connection port is covered by a tray, and the opening of the tray that exposes the fuel filler port or connection port is opened and closed by the lid. The lid is locked to a protrusion protruding from a portion of the tray's inner peripheral surface. A portion of the tray's inner peripheral surface is inclined toward the inner bottom surface of the tray, away from the center line of the fuel filler port or connection port. The inclination of the portion of the tray's inner peripheral surface tilts the protrusion, making it less likely that a worker's hand will come into contact with the protrusion when attaching or detaching a fuel filler cap or connecting an electrical connector, improving workability. The clearance between the fuel filler port or connection port and the protrusion can be reduced, allowing the fuel filler port or connection port and the protrusion to be installed compactly. [Example]

[0010] Hereinafter, a saddle-ride type vehicle according to an embodiment will be described with reference to the accompanying drawings. Fig. 1 is a side view of the saddle-ride type vehicle according to the embodiment. In the following drawings, arrow Fr indicates the front of the vehicle, arrow Re indicates the rear of the vehicle, arrow L indicates the left side of the vehicle, and arrow R indicates the right side of the vehicle.

[0011] As shown in Fig. 1, a saddle-type vehicle 1 is configured by attaching various covers to an underbone-type body frame (not shown) as the exterior of the vehicle body. A front cover 11 is provided at the front of the vehicle, and a front leg shield 12 that protects the rider's legs is provided behind the front cover 11. A floor board 13 extends rearward from the lower end of the front leg shield 12, and a body cover 14 and a pair of side covers 15 are provided behind the floor board 13. A seat 16 is provided above the side cover 15, and a battery 26 is provided below the seat 16.

[0012] A handlebar 21 is provided above the front cover 11, and a front wheel 23 is rotatably supported below the front cover 11 via a pair of front forks 22. A swing arm (not shown) with a motor (not shown) is provided below the side cover 15. The swing arm is swingably connected to the body frame, and a rear wheel 24 is rotatably supported at the rear of the swing arm. The left side of the swing arm is covered by a swing arm cover (not shown), and power is transmitted from the motor to the rear wheel 24 via a belt-type continuously variable transmission (not shown) inside the swing arm cover.

[0013] A tray 31 that houses a charging port 27 (see FIG. 2) for a battery 26 is provided on the upper right side of the front leg shield 12. A lid 41 is connected to the lower edge of the opening of the tray 31 so as to be able to open downwards, and exposure of the charging port 27 is reduced by closing the opening of the lid 41. In this lid structure 30, a locking mechanism 61 (see FIG. 3) is installed on the upper wall of the tray 31, and the locking mechanism 61 is provided with a locking pin 62 that latches the open end of the lid 41. The lid 41 is locked by being latched onto the locking pin 62, and is unlocked by removing the lid 41 from the locking pin 62.

[0014] However, the lock pin of a typical locking mechanism protrudes in a normal direction perpendicular to the center line of the charging port. This narrows the clearance between the lock pin and the charging port, making it difficult to connect the electrical connector to the charging port because the lock pin gets in the way. It is also difficult to ensure a wide clearance between the lock pin and the charging port. When the lid is opened, the lock pin is exposed to the outside, which deteriorates the appearance. Therefore, in this embodiment, the lock pin is tilted toward the inner bottom surface of the tray, improving the ease of connecting the electrical connector and preventing the deterioration of the appearance due to the exposed protrusion.

[0015] The lid structure of a saddle-ride type vehicle will be described with reference to Figures 2 and 3. Figure 2 is a rear view of the lid structure of this embodiment. Figure 3 is a cross-sectional view of the lid structure of Figure 2 taken along line AA.

[0016] As shown in Figures 2 and 3, a tray 31 that is recessed forward is installed on the upper right side of the front leg shield 12. A charging port 27 protrudes from the inner bottom surface 32 of the tray 31, and a waterproof cap 28 is removably attached to the charging port 27. A battery cable extends from the charging port 27 toward a battery 26 (see Figure 1) at the rear of the vehicle, and the charging port 27 is connected to the battery 26 via the battery cable. The battery 26 is charged when an electrical connector of an external power source is connected to the charging port 27. The periphery of the charging port 27 is covered by the tray 31, preventing foreign matter such as dust and water droplets from entering the vehicle body.

[0017] The waterproof cap 28 (charging port 27) is exposed from the opening of the tray 31, and a lid 41 is provided on the underside of the tray 31 to cover the opening of the tray 31 from the rear. The lid 41 is connected to the underside of the tray 31 so as to be able to open downward. The lid 41 has a lid main body 42 that corresponds to the recess of the tray 31, and a lid cover 43 that is provided on the back surface of the lid main body 42. A pair of lid arms 44 extend in a C-shape from the bottom of the lid main body 42, and the tips of the pair of lid arms 44 are connected to the tray 31 via a connecting shaft 45. Restricting pieces 46 are provided on curved portions of the pair of lid arms 44, and the restricting pieces 46 come into contact with the tray 31 to restrict the opening of the lid 41.

[0018] The lid 41 swings up and down around the connecting shaft 45 as a fulcrum between an upright position that covers the tray 31 and a reclined position that opens the tray 31. When the lid 41 is closed, the lid 41 is locked in the upright position by a lock pin 62 of a locking mechanism 61. The tray 31 and charging port 27 are covered by a lid cover 43, improving the design. When the lid 41 is open, the restricting piece 46 of the lid 41 is hooked onto the tray 31, supporting the lid 41 in the reclined position. Because the lid 41 is reclined below the opening of the tray 31, the waterproof cap 28 is completely exposed from the opening of the tray 31 when viewed from the rear, making it easy to attach and remove the waterproof cap 28.

[0019] The upper wall of tray 31 is recessed outward (upward) to form recess 33, and the open end side of lid body 42 bulges out to form bulging portion 51 that fits into recess 33 of tray 31. When lid 41 is in the open state, the tip of bulging portion 51 faces upward, and a flat surface 52 is formed at the tip of bulging portion 51. Also, when lid 41 is in the open state, one side of bulging portion 51 faces rearward (the front side of the paper in FIG. 2), and one side of this bulging portion 51 has an inclined surface 53 that slopes forward toward the tip. A lock hole 54 is formed below inclined surface 53 on one side of bulging portion 51, into which a lock pin 62 of locking mechanism 61 fits.

[0020] An elastic protrusion 65 is provided on the inner surface of the recess 33 of the tray 31, and the elastic protrusion 65 protrudes toward the opening of the tray 31. A locking mechanism 61 having a locking pin 62 is provided on the upper wall of the recess 33, and the locking pin 62 protrudes from the upper surface 34 of the recess 33 inside the recess 33 so as to be able to sink. The elastic protrusion 65 is provided in a position where it can come into contact with the flat surface 52 of the bulging portion 51, and the locking pin 62 is provided in a position where it can come into contact with the inclined surface 53 of the bulging portion 51. Therefore, when the lid 41 is closed, the elastic protrusion 65 hits and is crushed by the flat surface 52 of the bulging portion 51, and the locking pin 62 hits and sinks into the inclined surface 53 of the bulging portion 51.

[0021] 3, when the lid 41 is locked in the closed state, the elastic protrusion 65 abuts against the flat surface 52 of the bulge portion 51 from the front, and the lock pin 62 enters the lock hole 54 of the bulge portion 51 from above. The elastic protrusion 65 is crushed by the flat surface 52 of the bulge portion 51, and the repulsive force of the elastic protrusion 65 presses the elastic protrusion 65 against the bulge portion 51. The base end of the lock pin 62 enters the main body 63 of the lock mechanism 61, and the torsion spring 64 inside the main body 63 presses the lock pin 62 into the lock hole 54 of the bulge portion 51. When the lid 41 is closed, the lid 41 is locked by the lock pin 62 against the repulsive force of the elastic protrusion 65.

[0022] A key cylinder or the like is connected to the locking mechanism 61 via a cable (not shown). The locking pin 62 is pulled out of the locking hole 54 of the bulge 51 by operating the cable, thereby unlocking the lid 41. When the lid 41 is unlocked, the repulsive force of the elastic protrusions 65 pushes the lid 41 in the opening direction, and the lid 41 opens downward under its own weight. In the lid structure 30 of this embodiment, the tray 31 is partially recessed to accommodate the locking mechanism 61, which eliminates the need to expand the tray 31 more than necessary, allowing the charging port 27 and the locking mechanism 61 to be installed in a compact manner.

[0023] The positional relationship between the lid and the charging port will be described with reference to Fig. 4. Fig. 4 is a diagram showing the positional relationship between the lid and the charging port in this embodiment.

[0024] As shown in FIG. 4, the tray 31 (recess 33) is provided with a locking mechanism 61 that can latch the lid 41 (see FIG. 3) in the closed state. A main body 63 of the locking mechanism 61 forms the upper surface 34 of the recess 33, and a locking pin 62 of the locking mechanism 61 protrudes downward perpendicular to the upper surface 34 of the recess 33. A cylindrical charging port 27 protrudes from the inner bottom surface 32 of the tray 31, and a center line L1 in the axial direction of the charging port 27 is slightly tilted with respect to the horizontal. The upper surface 34 of the recess 33 is tilted upward and away from the center line L1 of the charging port 27 toward the inner bottom surface 32, and the tilt of the upper surface 34 of the recess 33 causes the locking pin 62 to be tilted slightly toward the inner bottom surface 32 of the tray 31.

[0025] The top surface 34 of the recess 33 is inclined from the top edge (opening edge) 39 of the tray 31 toward the inner bottom surface 32, and the lock pin 62 is located closer to the inner bottom surface 32 (front side) than the top edge 39 of the tray 31. The top surface 34 of the recess 33 rises from the top edge 39 of the tray 31 toward the inner bottom surface 32, and the base end of the lock pin 62 is positioned higher than the top edge 39 of the tray 31. Therefore, when viewed from the insertion direction F1 into the charging port 27, the amount of protrusion of the lock pin 62 from the top edge 39 of the tray 31 is reduced. When the electrical connector is brought close to the charging port 27 from the insertion direction F1, the lock pin 62 is less likely to hit the hand, improving the workability of connecting the electrical connector.

[0026] The inclination of the upper surface 34 of the recess 33 hides most of the lock pin 62 inside the tray 31, with only the tip of the lock pin 62 exposed from the upper edge 39 of the tray 31 (see FIG. 2). Typically, the charging port 27 is lower than the eye level of an operator, so the operator looks down at the charging port 27 from above. When the operator looks down at the charging port 27, the upper surface 34 of the recess 33 is located in the operator's blind spot, so the lock pin 62 protruding downward from the upper surface 34 of the recess 33 is less noticeable. In this way, exposure of the lock pin 62 from the upper edge 39 of the tray 31 is reduced, improving the appearance.

[0027] At this time, by tilting the upper surface 34 of the recess 33 with respect to the center line L1 of the charging port 27, the protruding direction L3 of the locking pin 62 is tilted toward the inner bottom surface 32 of the tray 31 with respect to the normal direction L2 of the center line L1 of the charging port 27. In this case, the protruding direction L3 of the locking pin 62 is preferably tilted within a range of 10 degrees or more and 20 degrees or less with respect to the normal direction L2 of the center line L1 of the charging port 27. In this embodiment, by tilting the upper surface 34 of the recess 33 by 14 degrees with respect to the center line L1 of the charging port 27, the protruding direction L3 of the locking pin 62 is tilted by 14 degrees with respect to the normal direction L2 of the center line L1 of the charging port 27.

[0028] By tilting the lock pin 62 toward the inner bottom surface 32 of the tray 31, even if the operator's hand or the electrical connector touches the lock pin 62 when inserting the electrical connector into the charging port 27, the lock pin 62 is less likely to get caught. On the other hand, because the lock pin 62 is facing toward the inner bottom surface 32 of the tray 31, the lock hole 54 of the lid 41 and the lock pin 62 are more tightly engaged, making it more difficult to pry open the lid 41. In addition, by tilting the lock pin 62 so that its front is downward, even if foreign matter such as sand and dust gets inside the tray 31 through a gap between the lid 41 and the tray 31, the foreign matter is less likely to adhere to the lock pin 62.

[0029] The locking operation of the lid will be described with reference to Fig. 5. Fig. 5 is a transition diagram of the locking operation of the lid in this embodiment.

[0030] As shown in FIG. 5(A), when the lid 41 is in the downward-opened state, the opening of the tray 31 is open and the charging port 27 faces rearward. In addition, a lock pin 62 protrudes from the upper surface 34 of the recess 33 of the tray 31. As described above, the lock pin 62 is inclined toward the inner bottom surface 32 of the tray 31, so that the lock pin 62 is less likely to get caught on the operator's hand or the electrical connector when connecting the electrical connector, and the connection work of the electrical connector is less likely to be hindered. In addition, when the operator looks down at the charging port 27, the lock pin 62 is hidden inside the tray 31, improving the appearance.

[0031] As shown in Figure 5(B), when the lid 41 is lifted from its downward-open state, the lock pin 62 is pushed in the retracting direction by the slope 53 of the bulging portion 51 of the lid 41, and the bulging portion 51 enters the recess 33 of the tray 31. At this time, the elastic protrusion 65 (see Figure 2) abuts against the flat surface 52 of the bulging portion 51, applying a repulsive force to the lid 41. When the lid 41 is completely closed, the lock pin 62 disengages from the slope 53 of the bulging portion 51 and enters the lock hole 54 of the bulging portion 51. As a result, the lid 41 is locked in the closed state by the lock pin 62 against the repulsive force of the elastic protrusion 65.

[0032] As described above, according to the lid structure 30 for saddle-ride type vehicle 1 of this embodiment, the lock pin 62 is tilted by the inclination of the top surface 34 of the tray 31 (recess 33). Because the lock pin 62 moves away from the center line L1 of the charging port 27 toward the inner bottom surface 32 of the tray 31, the worker's hand is less likely to come into contact with the lock pin 62 when connecting the electrical connector, improving workability. The clearance between the charging port 27 and the lock pin 62 can be reduced, allowing the charging port 27 and the lock pin 62 to be installed compactly.

[0033] In this embodiment, the lock pin as a protrusion is configured to protrude downward from the upper surface of the tray, but the protrusion may protrude from a part of the inner peripheral surface of the tray. For example, the protrusion may protrude upward from the lower surface of the tray, and the upward-opening lid may be locked by the protrusion.

[0034] In this embodiment, the locking mechanism is provided on the tray, but the locking mechanism may also be provided on the lid. For example, a protrusion may protrude inward from the inner peripheral surface of the tray, and the locking mechanism on the lid may be provided with a movable hook. In this case, the movable hook catches on the protrusion, thereby locking the lid in the closed state.

[0035] Furthermore, in this embodiment, a battery is installed in the saddle-ride type vehicle, but a fuel tank may also be installed in the saddle-ride type vehicle. In this case, the periphery of the fuel filler opening of the fuel tank is covered by a tray, and the opening of the tray exposing the fuel filler opening is covered by a lid. Even in a configuration in which a fuel tank is installed instead of a battery, the lock pin is less likely to be struck by the worker's hand when attaching or detaching the fuel filler cap, improving workability. Note that the fuel tank is not limited to storing fuel oil, and other fuels such as hydrogen may also be stored.

[0036] Furthermore, in this embodiment, the battery connection port is a charging port such as a charging receptacle terminal, but the battery connection port may be a power supply port such as a power supply socket terminal.

[0037] In addition, in this embodiment, the tray is installed on the front leg shield, but the installation position of the tray is not particularly limited. For example, the tray may be installed at the rear or side of the vehicle body.

[0038] Furthermore, the lid structure of this embodiment is not limited to the saddle-ride type vehicle described above, and may be employed in other vehicles such as four-wheeled automobiles, etc. Note that the saddle-ride type vehicle is not limited to all vehicles in which the driver rides in a straddling position on the seat, but also includes scooter-type vehicles in which the driver rides without straddling the seat.

[0039] As described above, the first aspect is a lid structure (30) for a vehicle (saddle-type vehicle 1) equipped with a fuel tank or a battery (26), the lid structure including: a tray (31) that covers the periphery of the fuel tank's filler port or the battery connection port (charging port 27); and a lid (41) that opens and closes the opening of the tray that exposes the filler port or the connection port. A protrusion (lock pin 62) protrudes from a portion of the inner peripheral surface (top surface 34) of the tray to lock the lid. A portion of the inner peripheral surface of the tray is inclined toward the inner bottom surface (32) of the tray so as to move away from the center line (L1) of the filler port or the connection port. With this configuration, the inclination of the portion of the inner peripheral surface of the tray tilts the protrusion. Because the protrusion moves away from the center line of the filler port or the connection port toward the inner bottom surface of the tray, an operator's hand is less likely to come into contact with the protrusion when attaching or detaching a fuel filler cap or connecting an electrical connector, improving workability. The clearance between the fuel filler port or connection port and the protrusion can be reduced, allowing the fuel filler port or connection port and the protrusion to be installed compactly.

[0040] In the second embodiment, a portion of the inner peripheral surface of the tray is inclined from the opening edge (upper edge 39) of the tray toward the inner bottom surface of the tray. With this configuration, when viewed from the direction of insertion into the fuel filler or connection port, the amount of protrusion from the opening edge is reduced, making it less likely to interfere with the work of attaching and detaching the fuel filler cap or connecting the electrical connector. In addition, the exposure of the protrusion from the opening edge is reduced, improving the appearance.

[0041] In the third aspect, in the first or second aspect, a portion of the inner peripheral surface of the tray is the top surface of the tray, and the top surface of the tray is inclined upward and away from the center line of the fuel filler or connection port toward the inner bottom surface of the tray. With this configuration, the fuel filler or connection port is usually viewed from above, and the top surface of the tray is located in a blind spot for the operator, so the protrusions protruding downward from the top surface of the tray are less noticeable, improving the appearance. Furthermore, even if foreign matter such as sand and dust gets inside the tray, the foreign matter is less likely to adhere to the protrusions.

[0042] In a fourth aspect, in any one of the first to third aspects, the protruding direction (L3) of the protrusion is inclined toward the inner bottom surface of the tray with respect to the normal direction (L2) of the center line of the fuel filler or connection port. With this configuration, even if an operator's hand touches the protrusion, it is less likely to get caught. Furthermore, because the protrusion is facing the inner bottom surface of the tray, the lid and the protrusion are more tightly engaged, making it more difficult to pry open the lid.

[0043] In a fifth aspect, in the fourth aspect, the protrusion is inclined downward toward the front. With this configuration, even if foreign matter such as sand or dust gets inside the tray, the foreign matter is less likely to adhere to the protrusion.

[0044] A sixth aspect is any one of the first to fifth aspects, and includes a locking mechanism (61) that locks the lid in a closed state using a protrusion. A portion of the inner peripheral surface of the tray is located in a recess (33) recessed into the outer peripheral wall of the tray. A bulge (51) that fits into the recess of the tray is formed on the open end side of the lid. The protrusion protrudes from a portion of the inner peripheral surface of the tray inside the recess so as to be able to sink therein. A locking hole (54) into which the protrusion fits is formed in the bulge. With this configuration, the lid is locked when the protrusion of the locking mechanism fits into the locking hole of the lid, and the lid is unlocked when the protrusion of the locking mechanism is pulled out of the locking hole of the lid. Furthermore, since the tray is partially recessed to install the locking mechanism, it is not necessary to expand the tray more than necessary, and the fuel filler port or connection port and the locking mechanism can be installed compactly.

[0045] Although the present embodiment has been described, other embodiments may be made by combining the above-described embodiments and modifications in whole or in part.

[0046] Furthermore, the technology of the present invention is not limited to the above-described embodiments, and various changes, substitutions, and modifications may be made without departing from the spirit of the technical idea. Furthermore, if the technical idea can be realized in a different way due to technological advances or other derived technologies, it may be implemented using that method. Therefore, the claims cover all embodiments that may fall within the scope of the technical idea. [Explanation of symbols]

[0047] 1: Saddle-type vehicle (vehicle) 26: Battery 27:Charging port 30: Lid structure 31: Tray 32: Inner bottom surface 33: Recess 34: Top surface (part of the inner surface of the tray) 39: Upper edge (tray opening edge) 41: Lid 51:bulge 54: Lock hole 61: Locking mechanism 62: Lock pin (protrusion) L1: Center line of charging port L2: Normal direction of the center line L3: Protruding direction of lock pin

Claims

1. A lid structure for a vehicle in which a fuel tank or a battery is installed, a tray that covers the periphery of the fuel filler port of the fuel tank or the connection port of the battery; a lid that opens and closes an opening of the tray that exposes the fuel fill port or the connection port, a protrusion protruding from a part of the inner circumferential surface of the tray for locking the lid; A lid structure characterized in that a portion of the inner peripheral surface of the tray is inclined toward the inner bottom surface of the tray so as to move away from the center line of the fuel fill port or the connection port.

2. 2. The lid structure according to claim 1, wherein a part of the inner peripheral surface of the tray is inclined from the opening edge of the tray toward the inner bottom surface.

3. a part of the inner circumferential surface of the tray is the upper surface of the tray, 3. The lid structure according to claim 1, wherein the upper surface of the tray is inclined upward and away from the center line of the fuel filler port or the connection port toward the inner bottom surface of the tray.

4. 3. The lid structure according to claim 1, wherein the protruding portion protrudes in a direction inclined toward the inner bottom surface of the tray with respect to a normal to a center line of the fuel filler opening or the connection opening.

5. 5. The lid structure according to claim 4, wherein the protrusion is inclined downward toward the front.

6. a locking mechanism that locks the lid in a closed state using the protrusion, a part of the inner peripheral surface of the tray is located in a recess recessed on the outer side of the peripheral wall of the tray; A bulge portion is formed on the open end side of the lid to fit into the recess of the tray, the protrusion protrudes from a part of the inner circumferential surface of the tray inside the recess so as to be able to sink therein; 3. The lid structure according to claim 1, wherein the bulging portion is formed with a locking hole into which the protrusion is inserted.

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