JP2017081383A - Filler neck cover for motor vehicle and filler unit for motor vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filler neck cover for a motor vehicle, which facilitates both opening operation of an inner cover performed to open a filler neck, and closing operation of the inner cover performed to close the filler neck, and which gives excellent feel of the operation, and to provide a filler unit for a motor vehicle including the filler neck cover for a motor vehicle.SOLUTION: The filler neck cover for a motor vehicle includes: a holder mounted at a fuel filler tube side; and an inner cover held by the holder. At a portion where the inner cover is connected to the holder, there are provided: a cam serving as an axis of rotational motion of the inner cover; and a resilient body having a cam bearing surface. The cam bearing surface forms a guide surface concave in a direction away from the axis of the rotational motion. Upon opening or closing of the inner cover, a tip of the cam and the guide surface are in sliding contact with each other, transmitting biasing force to the inner cover. The inner cover can be biased in both opening and closing directions of the filler neck. The cam bearing surface may form a guide surface convex toward the axis of the rotational motion.SELECTED DRAWING: Figure 1

Description

The present invention relates to an automobile filler opening cover and an automobile oil supply unit provided with an inner cover.

As in Patent Document 1, it is already known that an inner cover is provided inside a fuel lid that is rotatably supported with respect to a body. The inner cover is supported so as to be rotatable with respect to the cover module via a tilting shaft.

Patent Document 2 discloses an oil supply pipe closing device including a leaf spring and a cam surface. In the first intermediate position shown in FIG. 13 of Patent Document 2, the cover is urged in the turning direction, and in the second intermediate position shown in FIG. 11, the cover is urged in the closing direction.

JP 2008-44455 A US2003 / 0098304A1

The oil supply port cover of Patent Document 1 includes a moderation protrusion and a leaf spring that engages with it. In order to open and close the inner cover, it must be pushed up or down by hand to the open position or the closed position, and the opening / closing operation is troublesome.

The oil supply pipe closing device of Patent Document 2 is configured so that the load point of the cam is in contact with the fixed end of the leaf spring of Patent Document 2, so that the operation feeling when opening and closing the cover is hard, and the opening and closing of the cover is difficult. It takes power.

In view of the above points, the present invention is capable of easily performing any operation in the opening direction and the closing direction of the filler opening when opening and closing the inner cover, and has a good operational feeling. An object of the present invention is to provide an automobile oil supply unit including the same.

A fuel filler cover for an automobile including a holder attached to a fuel refueling pipe side and an inner cover supported by the holder. The inner cover and the holder are cams that serve as an axis of rotational movement of the inner cover at a connection portion between the two. And an elastic body having a cam receiving surface, the cam receiving surface being a guide surface that is recessed in a direction away from the axis of the rotational motion, and when opening and closing the inner cover, the tip of the cam and the guide The above-described problem is solved by an automobile filler opening cover that transmits an urging force to the inner cover while being in sliding contact with the surface and urges both the opening direction and the closing direction of the filler opening. Hereinafter, the vehicle oil supply port cover is simply referred to as an oil supply port cover, and the vehicle oil supply unit is referred to as an oil supply unit. Since the inner cover is biased in both the opening direction and the closing direction, the inner cover can be operated with one touch. Since the elastic body has a recessed guide surface, it is possible to reduce the load applied to the cam and improve the operational feeling of the inner cover.

The cam receiving surface may be a guide surface that is convex in a direction approaching the axis of the rotational movement. Since the convex guide surface is provided, the urging direction of the inner cover is switched in a predetermined direction at the same time as the cam exceeds the convex portion. As a result, the operation of the inner cover can be sharpened and the operational feeling can be improved.

When the position of the cam receiving surface when the inner cover is in the open state or the closed state is set as the initial position, the cam and the elastic body have a displacement amount of the cam receiving surface when the inner cover reaches the middle open position. It is preferable to assemble in the state where it becomes the largest with respect to the initial position. Since the direction in which the inner cover is biased can be switched with the middle opening position as a boundary, the inner cover can be opened and closed by a one-touch operation of flipping the inner cover up or down with a fingertip.

It is preferable that the connecting portion of the inner cover and the holder further includes a support portion that rotatably supports the inner cover and an elastic seat that is arranged in a direction intersecting the support portion. By supporting the elastic body at the seat, the elastic body can be easily supported at an appropriate position.

The elastic body including the cam receiving surface is preferably a leaf spring including the cam receiving surface and the foot. As another aspect, it is preferable that the elastic body including the cam receiving surface is a coil spring, and the cam receiver is further provided between the coil spring and the cam. Thereby, it can prevent that the operation | movement of a cam becomes hard.

It is preferable that the cam and the support portion have shaft holes that communicate with each other, and the cam or the support portion is pivotally supported in a state where the rotation shafts are inserted through the shaft holes. Thereby, an inner cover and a holder can be assembled | attached easily. In addition, the inner cover can be easily removed from the holder.

The inner cover and the holder are preferably made of a synthetic resin having conductivity. Thereby, the fire by static electricity can be prevented.

It is preferable that the holder includes an engaging portion for engaging with the fuel supply pipe. By changing the shapes of the holder and the engaging portion in accordance with the shape of the fuel supply pipe, it becomes possible to attach the fuel filler cover to the fuel supply pipe having various shapes.

The fuel filler cover is provided with a plurality of inner covers, and each inner cover displays different graphics, characters, symbols, colors, or combinations thereof, and the inner cover is removed to provide another inner cover. It is preferable to be able to replace it. Thereby, it can replace | exchange for the inner cover provided with a different figure etc. according to the kind and preference of the fuel which a motor vehicle suits.

Provided is an automotive filler opening cover that can easily perform both the opening and closing directions of the filler opening when opening and closing the inner cover, and has a good feeling of operation, and an automotive filler unit including the same. The

It is a disassembled perspective view of one Embodiment of the oil supply unit for motor vehicles. FIG. 2 is a longitudinal sectional view showing a state where an inner cover is closed in the automobile fuel supply unit shown in FIG. 1. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle | round | yen in FIG. FIG. 3 is a longitudinal sectional view showing a state where an inner cover of the automobile oil supply unit shown in FIG. 2 has reached a middle opening position. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle | round | yen in FIG. It is a longitudinal cross-sectional view which shows the state which the inner cover of the vehicle oil supply unit shown in FIG. 2 opened. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle in FIG. In the fuel supply unit for vehicles concerning another embodiment, it is a longitudinal section showing the state where the inner cover was closed. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle | round | yen in FIG. It is a longitudinal cross-sectional view which shows the state which the inner cover of the fuel supply unit for motor vehicles shown in FIG. 8 reached | attained the middle opening position. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle | round | yen in FIG. It is a longitudinal cross-sectional view which shows the state which the inner cover of the vehicle oil supply unit shown in FIG. 8 opened. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle | round | yen in FIG. In the fuel supply unit for vehicles concerning another embodiment, it is a longitudinal section showing the state where the inner cover was closed. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle in FIG. It is a longitudinal cross-sectional view which shows the state which the inner cover of the fuel supply unit for motor vehicles shown in FIG. 15 reached | attained the middle opening position. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle in FIG. It is a longitudinal cross-sectional view which shows the state which the inner cover of the fuel supply unit for motor vehicles shown in FIG. 16 opened. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle | round | yen in FIG. In the fuel supply unit for vehicles concerning another embodiment, it is a longitudinal section showing the state where the inner cover was closed. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle in FIG. It is a longitudinal cross-sectional view which shows the state which the inner cover of the vehicle oil supply unit shown in FIG. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle | round | yen in FIG. It is a longitudinal cross-sectional view which shows the state which the inner cover of the fuel supply unit for motor vehicles shown in FIG. 23 opened. It is the longitudinal cross-sectional view which expanded and showed the area | region enclosed with the circle | round | yen in FIG.

DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described with reference to the drawings. 1 to 6 show an embodiment of an oil supply unit for an automobile, FIGS. 8 to 13 show another embodiment of the oil supply unit, FIGS. 14 to 19 show another embodiment of the oil supply unit, and FIGS. Fig. 5 shows another embodiment of the oil supply unit. The configurations shown in the drawings are merely examples, and the present invention is not limited to these configurations.

[First Embodiment]
FIG. 1 is an exploded perspective view of an embodiment of an oil supply unit 1 for an automobile. The fuel supply unit 1 includes a fuel supply pipe 11, a flapper 12, a capless device 13, a holder 14, and an inner cover 15.

The fuel supply pipe 11 includes, in order from the base end side, a narrow tube portion 16 that is connected to a fuel tank (not shown), a first taper portion 17, a first diameter expansion portion 18, a second taper portion 19, and a second diameter expansion. A portion 20, a third taper portion 21, and a third diameter-expanded portion 22 are provided. The enlarged diameter portion on the distal end side has a larger inner diameter than the proximal end side, and has a funnel shape. The third enlarged diameter portion 21 is provided with a plurality of through holes 24 for fitting the fixing protrusions 23 of the capless device 13 and a flange 25 for fixing the holder 14.

The flapper 12 includes a flapper main body 26, a pair of arms 27 extending from the flapper main body 26, a torsion coil spring 28, and a rotary shaft 29 inserted through the ring at the tip of the arm and the torsion coil spring 28. A plurality of protrusions are provided on the plane of the flapper body 26 to reinforce the flapper body 26. The flapper 12 is rotatably supported with respect to a valve seat disposed around the opening 30 by inserting the rotary shaft 29 into the shaft hole 31 of the capless device 13, and is supported by the torsion coil spring 28 on the valve seat. On the other hand, the valve body 70 is biased. The valve body 70 is an annular elastic body such as rubber.

The capless device 13 includes a valve seat disposed around the opening 30, a plurality of guide strips 32 that guide the fuel nozzle to the opening, a wall surface 33 on which the guide strips 32 are provided, and a pressure regulator 34. The capless device 13 is assembled with a flapper 13 as a module. A plurality of protrusions 23 are provided below the flange 35 at the upper end of the capless device 13. By fitting the protrusions 23 into the through holes 24 as described above, the capless device 13 is attached to the fuel supply pipe 11. Fix it. The capless device 13 has a circular shape in plan view, and fits into the second enlarged diameter portion 20 of the fuel supply pipe 11. An annular sealing material 73 is fitted into the groove provided on the outer periphery of the capless device 13. The sealing material 73 is made of, for example, rubber, and makes the fuel supply pipe 11 airtight while being sandwiched between the fuel supply pipe 11 and the capless device 13.

The holder 14 includes a skirt 36 having an inner diameter that can be fitted into the third enlarged diameter portion 22, a top plate 38 disposed on the upper end of the skirt 36, an annular wall 39 protruding upward from the top plate 38, A support portion 41 that protrudes upward from the top plate 31 while being in contact with the annular wall 39 is provided. An opening 37 is provided in the top plate 38 inside the annular wall 39. An inclined portion 71 that is inclined from the inner wall of the annular wall 39 toward the opening 37 is provided. The skirt 36 is provided with a plurality of engaging claws 40 as engaging portions for engaging with the fuel supply pipe 11. By engaging the claws 40 with the flange 25 of the fuel supply pipe 11, 14 is fixed to the fuel supply pipe 11. A support portion 41 is provided on the top plate 38 in contact with the annular wall 39. The support portion 41 is disposed on the proximal end side of the inner cover 15. At the upper end of the annular wall 32 on the opposite side of the support portion 41, a receiving portion 45 of the oil supply nozzle projects inward in the radial direction of the annular wall.

In the present embodiment, the support portion 32 includes a pair of support plates 42 protruding from the annular wall 32 to the proximal end side of the inner cover 15, and a wall surface that connects both ends of the pair of support plates 42 and faces the annular wall 32. 43. The support plates 42 are in a parallel relationship with each other. The pair of support plates 42, the wall surface 43, and the annular wall 39 form a small chamber for housing the elastic body. Each of the pair of support plates 42 includes a shaft hole 44 through which a pin is inserted. As shown in FIGS. 2 to 7, the bottom surface of the support portion 41 is a top plate 38 and constitutes an elastic seat 51. The seat 51 is orthogonal to the support plate 42.

In the present embodiment, the inner cover 15 is a circular plate-like body in plan view, and covers the upper end edge of the annular wall 39. An opening 37 is provided inside the annular wall 39, and the opening 37 communicates with the opening 30 of the capless device 13 to form an oil filler port. An annular cushion material 72 is disposed on the bottom surface of the inner cover 15. The cushion material comes into contact with the upper edge of the annular wall 39 and softens the impact when the inner cover 15 is closed. The oil filler opening is closed by a flapper 12. On the outside of the inner cover 15, there is a fuel lid on the vehicle body side (not shown). The user opens the fuel lid, opens the inner cover 15 on the inner side, inserts the fueling nozzle into the fueling port, and pushes the flapper 12 biased against the valve seat.

The inner cover 15 includes a cam 52 that protrudes obliquely downward from the periphery on the base end side toward the base end side. The cam 52, the support portion 41 of the holder 14, and an elastic body 46 described later constitute a connection portion. In the present embodiment, as shown in FIG. 1, the cam 52 includes a shaft hole 47 that penetrates in the extending direction of the base end portion of the inner cover 15. By inserting a pin as a rotation shaft 48 into the shaft hole 44 of the support portion 41 and the shaft hole 47 of the cam 52, the inner cover 15 is rotatably supported with respect to the holder 14. At the tip of the pin 34, a groove for holding the fixing tool 49 for retaining is carved. Examples of the fixture 49 include a C-shaped annular body with a part cut away, and an elastic annular body such as rubber.

As shown in FIGS. 2 and 3, in the present embodiment, the cam 52 has a wedge shape in a side view and becomes narrower toward the tip of the cam. The wedge-shaped cross-sectional shape is continuous with the extending direction of the base end portion of the inner cover 15. As shown in FIG. 3 and the like, a shaft hole 47 is provided at the root portion of the inclined surface 50 of the cam 52. The cam tip has a distance (D1) between the center of the shaft hole of the cam 52 and the tip of the cam 52 that is greater than the length (D2) of the line perpendicular to the inclined surface from the center of the cam shaft hole. It is configured.

As shown in FIG. 1, since the shaft hole 44 of the support portion 41 is provided above the seat 51, the elastic body is accommodated by the pair of support plates 42, the wall surface 43, and the annular wall 39. The elastic shaft 46 is inserted into the shaft holes 44 and 47 of the inner cover 15 and the holder 14 in a state where the elastic body 46 is housed in the small chamber for transmitting the load due to the elastic force of the elastic body 46 to the cam 52. The inner cover 15, the holder 14, and the elastic body 46 can be easily assembled as possible. The seat 51 is provided with a projection having a smaller diameter than the elastic body 46 in order to determine the position of the elastic body 46.

In the present embodiment, the inner cover 15, the holder 14, and the elastic body 46 are assembled so that the cam receiving surface 53 touches the tip of the cam 52 when the inner cover 15 is closed and opened. As indicated by a broken line in FIG. 5, when the position of the cam receiving surface 53 when the inner cover 15 is in the open state or the closed state is set as the initial position, the inner cover 15 is rotated in the opening direction or the closing direction. As the cam tip is displaced from one side to the other in the horizontal direction, the height of the cam tip is lowered, and the cam receiving surface 53 of the elastic body 46 is pushed down as shown in FIGS. . As shown in FIGS. 4 and 5, a position where the amount of displacement of the cam receiving surface of the elastic body 46 is the largest when viewed from the initial position is defined as a middle opening position. The urging direction of the inner cover is switched at the middle opening position. 4 and 5, when the angle formed by the upper end surface of the holder and the inner cover main body is θ1, the angle θ1 of the inner cover 15 in the middle open state is 45 °. For example, when the angle of the inner cover is 15 ° which is less than 45 °, the inner cover 15 is biased in the closing direction, so that the inner cover 15 automatically closes when the hand is released. On the other hand, when the angle of the inner cover is 60 °, which is larger than 45 °, the inner cover 15 is biased in the opening direction, so that the inner cover 15 automatically opens when released.

The inner cover 15 includes a protrusion that protrudes from the base end portion to the base end side. The protrusion functions as a stopper 69 and stops the rotational movement of the inner cover 15 by contacting the wall surface 43 as shown in FIG.

In the present embodiment, a leaf spring including a cam receiving surface 53 and a pair of foot portions 54 protruding downward from the cam receiving surface is used as the elastic body 46. The elastic body preferably has a shape in which both one end and the other end are supported by the receiving seat 51 and the cam receiving surface 53 is separated from the contact point between the one end and the other end and the receiving seat 51. In the case of a leaf spring, the tips of the pair of feet 54 correspond to “one end” and “the other end”. Since the cam receiving surface is separated from one end and the other end, which are the support portions of the elastic body, it is possible to prevent the cam rotation operation from becoming excessively hard. The foot 54 is formed by bending a leaf spring.

The cam receiving surface 53 is recessed in a direction away from the rotation shaft 48, an inclining surface inclined in a direction away from the rotating shaft, an inclined surface inclined in a direction approaching the rotating shaft, and an inflection connecting both inclined surfaces. A part. The inclination angle changes at the inflection part. In this embodiment, the inclination angle of the cam 54 is set so that the tip of the cam 54 is positioned at the inflection part when the center opening position is reached. For example, when the inner cover 15 is opened from the closed state, the elastic body 46 is deformed while the tip of the cam 54 is guided by the inclined surface inclined in the direction away from the rotation shaft. When the inflection part shown in FIGS. 4 and 5 is passed over the inner cover 15, the elastic body is returned to the initial position while the tip of the cam 54 is guided by the inclined surface inclined in the direction away from the rotating shaft. Thereby, a smooth operation feeling can be obtained when the inner cover is rotated. Further, the inflection portion can change the operational feeling of the inner cover 15. That is, since the operational feeling changes when the cam 54 reaches the vicinity of the inflection point, the user can sense that the urging direction has been switched from the change in the operational feeling. In this embodiment, a feeling of operation becomes light near the inflection point.

[Second Embodiment]
The elastic body is not limited to a leaf spring. For example, a coil spring 55 and a cam receiver 56 may be used as the elastic body 46a as in another embodiment shown in FIGS. The elastic body preferably has a shape in which both one end and the other end are supported by the receiving seat. In the case of the coil spring 55, an arbitrary point on the circumference of the bottom surface corresponds to "one end", and an opposite point facing the arbitrary point corresponds to "other end". In this embodiment, a cam receiver 56 is disposed between the coil spring and the cam 52. The cam receiver 56 is a plate-like member, and includes a protrusion that determines the position of the coil spring 55 on the bottom surface side, and a cam receiving surface 57 that is recessed in a direction away from the rotation shaft 48 on the flat surface side. If the outer shape of the projection on the bottom surface side is set to fit into the coil spring 55, the cam receiver 56 and the coil spring 55 can be handled as an integral member. By integrating both, the elastic body 46a, the inner cover 15, and the holder 14 can be easily assembled. The cam receiving surface 57 includes an inclined surface that inclines in a direction away from the rotation axis, an inflection portion, and an inclined surface that inclines in a direction approaching the rotation axis, as in the embodiment of FIGS. The seat 51 is provided with a protrusion having a smaller diameter than the elastic body in order to determine the position of the elastic body 46a. About another structure, it is the same as that of embodiment shown in the above-mentioned FIG. 1 thru | or FIG. In FIG. 11, the initial position of the cam receiving surface 57 is indicated by a broken line.

The cam receiving surface 57 functions as a guide surface that guides the rotation of the cam 52 in the same manner as the cam receiving surface of the embodiment of FIGS. 1 to 7, and can obtain a smooth operation feeling when the inner cover 15 is rotated. it can. Similarly, it can be detected that the urging direction has been switched from a change in the operational feeling. In this embodiment, a feeling of operation becomes light near the inflection point. In the present embodiment, when the angle formed by the upper end surface of the holder 14 and the inner cover 15 main body is θ2, the angle θ2 of the inner cover 15 in the middle open state is 55 °. When the position of the inner cover 15 is greater than 55 °, the inner cover 15 is biased in the opening direction. When the position of the inner cover 15 is smaller than 55 °, the inner cover 15 is biased in the closing direction.

[Third Embodiment]
As the elastic body, an elastic body 46b may be used as in the embodiment shown in FIGS. The elastic body 46b is the same as the embodiment shown in FIGS. 8 to 13 in that the coil spring 55 is employed, but the shape of the cam receiver is different. The cam receiver 58 includes a guide surface that is convex in a direction approaching the rotation shaft 48 on the flat surface side. Similar to the cam receiver 56, a projection for determining the position of the coil spring 55 is provided on the bottom surface side.

In this embodiment, the shape of the cam 59 is also changed so as not to interfere with the convex portion of the guide surface of the cam receiver 58. As for the shape of the cam 59, the base end and the tip end have the same thickness, and a plate-like protrusion protrudes obliquely downward from the rotating shaft 48. About another structure, it is the same as that of embodiment shown in the above-mentioned FIG. 1 thru | or FIG. In FIG. 18, the initial position of the cam receiving surface 60 is indicated by a broken line. The distance (D1) of the line connecting the center of the shaft hole of the cam 69 and its tip is configured to be larger than the length (D2) of the line orthogonal to the inclined surface 67 from the center of the cam shaft hole. .

The cam receiving surface 59 functions as a guide surface that guides the rotation of the cam 52 in the same manner as the cam receiving surfaces of the embodiments of FIGS. 1 to 7, 8 to 13, and FIGS. 14 to 18. A smooth operation feeling can be obtained when rotating the. Similarly, it is possible to detect that the urging direction has been switched from the change in the operational feeling. In this embodiment, the feeling of operation becomes slightly heavy in the vicinity of the inflection point, and the inflection point has a protruding edge portion, so that a feeling of moderation occurs when the cam 59 gets over the inflection point. In the case of this embodiment, when the angle formed by the upper end surface of the holder and the inner cover main body is θ3, the angle θ3 of the inner cover 15 in the middle open state is 55 °.

[Fourth Embodiment]
As in the embodiment shown in FIGS. 20 to 25, the positions of the cam and the elastic body may be interchanged. In this embodiment, a support portion 41 c is provided on the proximal end side of the inner cover 15, and a cam 62 is provided on the holder 14. The shape of the cam 62 is a wedge shape in a side view as in the embodiment of FIGS. 1 to 7, and this side surface shape is continuous in the extending direction of the base end portion of the inner cover. The cam 62 is fixed to the top plate 38 of the holder 14 by a connecting portion 63.

The support portion 41c includes a plate-shaped receiving seat 64 that protrudes toward the base end side of the inner cover 15, a pair of support plates 65 that extend from the both end edges of the receiving seat to the bottom surface, and a pair of support plates 65 that are orthogonal to both ends And a pair of wall surfaces 66 connecting the two. The support plate 65 and the wall surface 66 constitute a small chamber that houses the elastic body 46c. The elastic body 46c is a leaf spring and has the same configuration as the elastic body 46 of the embodiment of FIGS. The support plate 65 has a shape extending toward the bottom so as to sandwich both ends of the cam. The support plate 65 and the cam 62 are each provided with a shaft hole communicating with each other at a position where the rotation shaft 48 is shown in FIG. The inner cover 15 and the holder 14 are configured such that a rotating shaft 48 such as a pin is inserted into the rotating shafts 67 and 68 so as not to be removed by the fixture 49.

When the inner cover 15, the holder 14, and the elastic body 46 c are assembled, the cam receiving surface 53 of the elastic body 46 c is assembled so as to touch the tip of the cam 62. About another structure, it is the same as that of embodiment shown in the above-mentioned FIG. 1 thru | or FIG. In FIG. 22, the initial position of the cam receiving surface 60 is indicated by a broken line.

The cam receiving surface 53 is a guide for guiding the rotation of the cam 62 in the same manner as the cam receiving surface of the embodiment shown in FIGS. 1 to 7, 8 to 13, 14 to 18, and 19 to 24. It functions as a surface, and a smooth operation feeling can be obtained when the inner cover 15 is rotated. Similarly, it can be detected that the urging direction has been switched from a change in the operational feeling. In this embodiment, a feeling of operation becomes light near the inflection point. In the case of this embodiment, when the angle formed by the upper end surface of the holder and the inner cover main body is θ4, the angle θ4 of the inner cover 15 in the middle open state is 39 °. When the position of the inner cover 15 is larger than 39 °, the inner cover is biased in the opening direction. When the position of the inner cover 15 is smaller than 39 °, the inner cover 15 is biased in the closing direction.

In each of the above embodiments, the center opening position is preferably set such that the angles (θ1, θ2, θ3, θ4) formed by the upper end surface of the holder and the inner cover main body are 35 to 65 °, It is more preferable to set the position at 50 °. Thereby, when the inner cover is opened and closed, if the inner cover is pushed up or down by hand until the middle opening position, the inner cover can be automatically displaced by the urging force thereafter.

In each of the above-described embodiments, the inner cover 15 and the holder 14 store an elastic body in a small chamber provided in the support portions 41, 41a, 41b, 41c, and a rotation shaft 48 is provided in the shaft hole of the inner cover and the holder. By inserting, it can be assembled easily. Since the elastic body is housed in the above-described small room and is stable, when the inner cover and the holder are assembled, the elastic body is prevented from being displaced and easily assembled. Since the elastic body comprised with the leaf | plate spring provided with the leg part 54 has few members, it is easier to assemble | attach. In terms of ease of assembly, the shape of the cam receiving surface is not particularly limited. For example, the cam receiving surface can be constituted by a flat surface, a surface recessed in a direction away from the axis of the inner cover rotational motion, or a surface convex in a direction approaching the axis of rotational motion of the inner cover.

Therefore, it is easy to extract the rotating shaft 48 and remove the inner cover 15 and assemble another inner cover. As shown in FIG. 1, another inner cover 15 a displaying graphics, characters, symbols, colors, or combinations thereof different from the inner cover 15 can be prepared and easily replaced. Those with different patterns are also included in the figures. The inner cover 15 is engraved with “Regular Gasoline” characters, a filling station figure, and “PULL” characters on its surface. The inner cover 15a has a pine pattern on its surface. The user can decorate the filler port by replacing the inner cover according to his / her preference.

As the inner cover 15b, for example, a letter “light oil”, a figure of a fueling stand, or a letter “PULL” imprinted on the surface thereof may be used. The inner cover can be selected according to the type of oil supported by the automobile to which the automobile oil supply unit is attached. Parts such as elastic bodies and holders other than the inner cover can be shared.

In the automobile fuel supply unit of each of the embodiments described above, the inner cover 15, the holder 14, and the fuel supply pipe 11 are made of a conductive material. The inner cover 15 and the holder 14 are made of a synthetic resin having conductivity. The fuel supply pipe 11 is made of a steel material. The inner cover 15 and the holder 14 are in direct contact with the inner cover 15 being closed. The holder 14 and the fuel supply pipe 11 are also in direct contact. Even if an electrostatically charged user touches the inner cover 15, the static electricity can be grounded through the inner cover 15, the holder 14, and the fuel supply pipe 11. This can prevent a fire accident due to static electricity.

DESCRIPTION OF SYMBOLS 1 Automobile oil supply unit 11 Fuel supply pipe 14 Holder 15 Inner cover 52 Cam (1st Embodiment, 2nd Embodiment)
59 Cam (Third Embodiment)
62 Cam (fourth embodiment)
53 Cam receiving surface (first embodiment, fourth embodiment)
57 Cam receiving surface (second embodiment)
60 Cam receiving surface (third embodiment)
46 Elastic body (first embodiment)
46a Elastic body (second embodiment)
46b Elastic body (third embodiment)
46c Elastic body (4th Embodiment)
41 Supporting part (first embodiment)
41a Supporting part (second embodiment)
41b Supporting part (third embodiment)
41c Supporting part (fourth embodiment)
51 Seat 54 Foot 55 Coil Spring 47 Shaft Hole (Cam)
44 Shaft hole (support)

Claims (11)

A fuel filler cover for an automobile including a holder attached to the fuel filler pipe side and an inner cover supported by the holder;
The inner cover and the holder are provided with a cam serving as an axis of rotational movement of the inner cover and an elastic body provided with a cam receiving surface at a connection portion between the two.
The cam receiving surface is a guide surface that is recessed in a direction away from the axis of the rotational motion,
A fuel filler port cover for an automobile that, when opening and closing the inner cover, transmits an urging force to the inner cover while the tip of the cam and the guide surface are in sliding contact with each other, and urges both in the opening direction and the closing direction of the fuel filler port. A fuel filler cover for an automobile including a holder attached to the fuel filler pipe side and an inner cover supported by the holder;
The inner cover and the holder are provided with a cam serving as an axis of rotational movement of the inner cover and an elastic body provided with a cam receiving surface at a connection portion between the two.
The cam receiving surface is a guide surface that is convex in a direction approaching the axis of the rotational motion,
A fuel filler port cover for an automobile that, when opening and closing the inner cover, transmits an urging force to the inner cover while the tip of the cam and the guide surface are in sliding contact with each other, and urges both in the opening direction and the closing direction of the fuel filler port. When the position of the cam receiving surface when the inner cover is open or closed is the initial position,
The vehicle oil filler cover according to claim 1 or 2, wherein the cam and the elastic body are assembled in a state in which the displacement amount of the cam receiving surface is maximized with respect to the initial position when the inner cover reaches the center opening position. . The connection part of an inner cover and a holder is further equipped with the support part which supports an inner cover so that rotation is possible, and the receiving seat of the elastic body arrange | positioned in the direction which cross | intersects a support part. Automobile filler cover. The vehicle oil filler cover according to any one of claims 1 to 4, wherein the elastic body including the cam receiving surface is configured by a leaf spring including the cam receiving surface and a foot portion. The vehicle oil filler cover according to any one of claims 1 to 4, wherein the elastic body including the cam receiving surface is a coil spring, and further includes a cam receiver between the coil spring and the cam. The cam and the support part are provided with shaft holes that communicate with each other, and the cam or the support part is pivotally supported in a state where the rotation shaft is inserted through both shaft holes. Automobile filler cover. The fuel filler cover for automobiles according to any one of claims 1 to 7, wherein the inner cover and the holder are made of a synthetic resin having conductivity. The vehicle fuel filler cover according to any one of claims 1 to 8, wherein the holder includes an engaging portion for engaging with the fuel fuel supply pipe. The fuel filler cover includes a plurality of inner covers, and each inner cover displays different graphics, characters, symbols, or colors, or a combination thereof.
The vehicle fuel filler cover according to any one of claims 1 to 9, wherein the inner cover can be removed and replaced with another inner cover. An automobile fuel supply unit comprising the automobile fuel filler cover according to any one of claims 1 to 10 and a fuel supply pipe.

Images