WO2020203802A1

WO2020203802A1 - Saddle ride type vehicle

Info

Publication number: WO2020203802A1
Application number: PCT/JP2020/014106
Authority: WO
Inventors: 哲堀内; 裕司岸; ポンナイアグレンジョン
Original assignee: 本田技研工業株式会社
Priority date: 2019-03-29
Filing date: 2020-03-27
Publication date: 2020-10-08
Also published as: CN113544051B; JP7186285B2; JPWO2020203802A1; CN113544051A

Abstract

A saddle ride type vehicle (11) is provided with: a fuel cap (55) that is attached to a fuel tank (44) so as to be displaceable along a track around an axis (56) and closes a fuel filler port (44a) in the close position; a regulating body (111) that is disposed out of the track of the fuel cap and coupled to the fuel tank; a lock hook (102a) that is supported by the fuel cap and displaced between a first position (Pf) in which the lock hook projects outward from the outer periphery of the fuel cap, engages with the regulating body and holds the fuel cap in the close position and a second position (Ps) in which the lock hook retracts from the first position and is detached from the regulating body; and an operation member (113) that is supported by a support body coupled to the fuel tank, is connected to the lock hook, and generates a driving force for releasing the lock hook from the engagement with the regulating body. Thus, the saddle ride type vehicle capable of preventing an operation force from being applied in the opening direction to the fuel cap before releasing the lock hook is provided.

Description

Saddle-riding vehicle

INDUSTRIAL APPLICABILITY The present invention includes a fuel tank having a fuel filler port, a fuel cap that is mounted on the fuel tank so that it can be displaced along the track along the axis and closes the fuel filler port at a closed position, and a fuel cap that is arranged off the track of the fuel cap. , The restrictor that is connected to the fuel tank, the lock position that is supported by the fuel cap, protrudes outward from the outer circumference of the fuel cap, engages with the regulator, and holds the fuel cap in the closed position, and retracts from the lock position. The present invention relates to a saddle-riding vehicle provided with a lock claw that displaces between release positions that separate from the regulator.

Japanese Patent Application Laid-Open No. 2017-196951 discloses an operation knob that is swingably supported by a fuel cap and connected to a slider having a lock claw. When the operation knob is pulled up around the swing axis, the lock claw retracts from the lock position and separates from the regulator. In this way, the fuel cap is unlocked. If the operation knob is kept pulled up, the fuel cap is displaced around the axis in the opening direction. The fuel filler port is opened.

Japanese Patent Application Laid-Open No. 2017-196951

In Japanese Patent Application Laid-Open No. 2017-196951, since the operating portion for operating the lock claw is provided on the fuel cap, the fuel cap is required to have strength to support the operating portion, and the structure of the fuel cap is complicated.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a saddle-riding vehicle capable of unlocking the fuel cap without providing an operation unit on the fuel cap.

According to the first aspect of the present invention, a fuel tank having a fuel filler port, a fuel cap that is provided so as to be freely displaceable along the track around the axis and closes the fuel filler port at a closed position, and a fuel cap that is out of the track of the fuel cap A first position that is supported by the fuel cap, projects outward from the outer periphery of the fuel cap, engages with the restrictor, and holds the fuel cap in a closed position, and the first position. In a saddle-riding vehicle provided with a lock claw that retracts from one position and displaces between a second position that retracts from the regulator, the lock is supported by a support that swingably supports the fuel cap. The operating member is connected to the claw and generates a driving force to release the lock claw from the engagement with the restricting body.

According to the second side surface, in addition to the configuration of the first side surface, the restricting body, the support body and the operating member are supported by the fuel tank.

According to the third side surface, in addition to the configuration of the first or second side surface, an elastic member exhibiting an elastic force for driving the fuel cap is connected to the fuel cap in the opening direction.

According to the fourth side surface, in addition to the configuration of the third side surface, the elastic member exerts an elastic force for driving the fuel cap to an opening position where the fuel filler port is opened.

According to the fifth side surface, in addition to the configuration of the fourth side surface, a slider that is coupled to the lock claw at one end, is displaced linearly along the surface of the fuel cap, and protrudes from the outer periphery of the fuel cap at the other end. A guide path formed on the fuel cap to guide the displacement of the slider and an extension of the guide path when the fuel cap is located at the closed position are arranged according to the movement of the operating member. When the fuel cap is coupled to the lock claw and is connected to the engagement piece when the fuel cap is located in the closed position, and the fuel cap is displaced in the opening direction from the closed position. It further includes a hook that is released from the engagement piece.

According to the sixth side surface, in addition to the configuration of the fifth side surface, the saddle-riding vehicle projects from the surface of the slider, and when the lock claw is located at the first position, the outer edge of the fuel cap is said to be said. Equipped with a protrusion that blocks the guideway.

According to the seventh side surface, in addition to the configuration of any one of the first to sixth side surfaces, the fuel tank is provided on the outer periphery of the fuel filler port, and the support is arranged on one side of the fuel filler port. A cap base for arranging the regulator on the other side of the fuel filler port is supported.

According to the eighth side surface, in addition to the configuration of any one of the first to seventh side surfaces, the saddle-riding vehicle is connected to the operating member and drives the operating member in response to the axial displacement. A cable that produces the driving force to open the lock claw is further provided.

According to the ninth side surface, in addition to the configuration of any one of the first to eighth side surfaces, the operating member is swingably supported around the hinge axis and connected to the lock claw in the first angle range. , The cable is connected to the cable in a second angle region that is displaced by a specific angle from the first angle region around the hinge axis.

According to the tenth side surface, in addition to the configuration of the ninth side surface, the operating member is connected to the lock claw at a position separated from the hinge shaft by the first length, and from the hinge shaft by the first length. It is connected to the cable at a distant position with a large second length.

According to the first side surface, when the operating member is operated, the driving force is transmitted to the lock claw. The driving force releases the lock claw from the engagement with the regulator. In this way, the fuel cap is unlocked. The operation of the fuel cap in the opening direction is allowed. The refueling port can be opened. Although the operating member generates a driving force for opening the lock claw, it does not apply a driving force to the fuel cap around the axis. Therefore, it is possible to prevent an operating force from being applied to the fuel cap in the opening direction before the lock claw is released. The strength required for lock claws can be reduced. On the other hand, when the operating member is installed on the fuel cap, the operating force is applied to the fuel cap from the operating member even if the engagement between the lock claw and the regulator is maintained. The lock claw is required to have strength against the operating force applied. Such a demand for strength leads to an increase in the weight of the lock claw. In addition, since the operating member is arranged at a position separated from the fuel cap, the structure of the fuel cap is not complicated, and the surface of the fuel cap can be tailored to a simple structure.

According to the second aspect, since the fuel cap and the restricting body are supported by the fuel tank, the lock claw on the fuel cap and the restricting body can be positioned with good accuracy. Engagement and disengagement of the lock claw with respect to the regulator can be successfully achieved.

According to the third aspect, when the lock claw is released from the restricting body, the fuel cap is driven in the opening direction by the action of elastic force. Therefore, even if the lock claw protrudes outward from the outer circumference of the fuel cap again, the engagement between the lock claw and the regulator is not established. The release of the lock claw can be maintained.

According to the fourth side surface, the fuel cap can reach the opening position where the fuel filler port is opened by the action of elastic force. In this way, the fuel filler port can be opened even if no operating force is applied to the fuel cap around the axis.

According to the fifth side surface, when the fuel cap is in the closed position, the hook is connected to the engagement piece. When the engagement piece is displaced according to the movement of the operating member, the displacement of the engagement piece is transmitted from the hook to the lock claw. The lock claw is driven from the first position to the second position. The engagement between the lock claw and the regulator is released. The fuel cap is driven in the opening direction by the action of elastic force. When the fuel cap swings in this way, the hook is released from the engagement piece. The operating member is separated from the movement of the fuel cap. Therefore, the fuel cap can be opened to the opening position by a small operation of the operating member.

According to the sixth side surface, the guide path of the slider is blocked by a projecting piece at the outer edge of the fuel cap, so that water can be prevented from entering from the guide path toward the inside of the fuel cap.

According to the seventh aspect, the cap base can unitize the fuel cap, the regulator, the lock claw and the operating member. The fuel cap, regulator, lock claw and operating member can be pre-assembled and assembled into the fuel tank. Therefore, the workability of assembly can be improved.

According to the eighth side surface, a driving force is generated by the operating member according to the axial displacement of the cable. The operating member can be operated remotely. The opening of the fuel cap can be well restricted.

According to the ninth side surface, the axial displacement of the cable is converted into the swing of the operating member. The swing of the operating member is converted into the displacement of the lock claw. Therefore, the orientation of the cable and the orientation of the displacement of the lock claw do not have to match, and the degree of freedom in arranging the cable can be expanded.

According to the tenth side surface, the pulling force of the cable is converted into the driving force of the lock claw. Since the cable is separated from the hinge shaft by a second length larger than the first length, the torque of the lock claw can be amplified with respect to the pulling force of the cable. The operating force applied to the cable can be reduced.

FIG. 1 is a side view schematically showing an overall configuration of a scooter which is a specific example of a saddle-riding vehicle according to an embodiment of the present invention. (First Embodiment) FIG. 2 is a rear enlarged perspective view of the vehicle schematically showing the shape of the rear cowl. (First Embodiment) FIG. 3 is a conceptual diagram schematically showing a switch unit embedded in the inner cover. (First Embodiment) FIG. 4 is an enlarged vertical sectional view of the rear end of the vehicle schematically showing the structure of the fuel cap unit. (First Embodiment) FIG. 5 is an enlarged perspective view of the fuel cap unit. (First Embodiment) FIG. 6 is an enlarged exploded perspective view of the fuel cap unit. (First Embodiment) FIG. 7 corresponds to a part of FIG. 4 and is an enlarged vertical sectional view of the fuel cap unit. (First Embodiment) FIG. 8 is an enlarged vertical cross-sectional view of the fuel cap unit including the slider located at the second position, corresponding to FIG. (First Embodiment) FIG. 9 is an enlarged vertical cross-sectional view of the fuel cap unit including the fuel cap swinging in the opening direction corresponding to FIG. (First Embodiment) FIG. 10 is an enlarged vertical cross-sectional view of the rear end of the vehicle, which corresponds to FIG. 4 and schematically shows the structure of the fuel cap unit when the fuel lid is opened. (First Embodiment) FIG. 11 is a conceptual diagram corresponding to FIG. 10 and schematically showing a state of refueling. (First Embodiment) FIG. 12 is an enlarged vertical sectional view of a fuel cap unit including a lock claw that hits a regulator when the fuel lid is closed, corresponding to FIG. (First Embodiment)

11 ... Saddle-riding vehicle (scooter)
44 ... Fuel tank 44a ... Refueling port 54 ... Cable 55 ... Fuel cap 57 ... Cap base 57b ... Support 89 ... Elastic member (twisting spring)
102 ... Slider 102a ... Lock claw 102b ... Projection piece 111 ... Regulator 113 ... Operating member 119 ... Engagement piece 121 ... Hook Pf ... First position Ps ... Second position LG1 ... First length LG2 ... Second length α ... Specific angle

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, front / rear, left / right, and up / down refer to the directions seen from the occupant of the motorcycle.

First Embodiment

FIG. 1 schematically shows the overall configuration of the scooter 11, which is a specific example of a saddle-riding vehicle (motorcycle). The scooter 11 includes a vehicle body frame 12 and a vehicle body cover 13 mounted on the vehicle body frame 12. The vehicle body frame 12 is coupled to the head pipe 14, the down tube 15 extending downward from the head pipe 14, the cross frame 16 connected to the rear end of the down tube 15 and extending in the vehicle width direction, and both ends of the cross frame 16. It is formed by a pair of left and right side frames 17 extending rearward from the cross frame 16. The front fork 18 and the steering handle 19 are rotatably supported by the head pipe 14. The front wheel WF is rotatably supported on the front fork 18 around the axle 21.

The vehicle body cover 13 has a front cowl 22a that covers the head pipe 14 and the down tube 15 from the front, an inner cover 22b that is coupled to the front cowl 22a and covers the head pipe 14 and the down tube 15 from the rear, and a lower end of the inner cover 22b. A floor step 22c that is coupled to and spreads parallel to the ground and a body cover 22d that is coupled to the rear end of the floor step 22c and covers the side frame 17 are provided. The occupant seat 23 is supported on the body cover 22d above the rear wheel WR. A storage box 24 is supported by the side frame 17 in the body cover 22d. The storage box 24 is opened and closed by the occupant seat 23.

A swing-type power unit 25 is swingably supported in the vertical direction between the side frames 17 on the vehicle body frame 12. The power unit 25 is connected to the side frame 17 by a link 26. The power unit 25 includes an internal combustion engine 27 that generates power based on fuel, and a transmission device 28 that is connected to the internal combustion engine 27 and transmits the power of the internal combustion engine 27 at a gear ratio that changes linearly to the rear wheel WR.

The rear wheel WR is rotatably supported around the axle 29 at the rear end of the power unit 25. A rear cushion unit 31 is attached between the rear end of the power unit 25 and the rear end of the side frame 17. The power unit 25 functions as a suspension device that connects the rear wheel WR to the vehicle body frame 12 so as to be swingable.

The engine body 32 of the internal combustion engine 27 is coupled to a crankcase 34 that rotatably accommodates the crankshaft around the rotation axis 33, and a linear reciprocating motion of the piston along the forward tilted cylinder axis C. The guiding cylinder block 35, the cylinder head 36 which is coupled to the cylinder block 35 to form a combustion chamber between the piston and the cylinder head 36, and the cylinder head 36 which is coupled to the cylinder head 36 and covers the valve mechanism assembled to the cylinder head 36. It includes a head cover 37. The cylinder head 36 is connected to an intake system 38 that introduces an air-fuel mixture into the combustion chamber and an exhaust system 39 that discharges the gas after combustion from the combustion chamber. The transmission device 28 includes a continuously variable transmission (not shown) housed in a transmission case 41 integrated with the crankcase 34 of the engine body 32.

The body cover 22d is arranged behind the occupant seat 23 and includes a rear cowl 43 that supports the tail lamp 42. A fuel tank 44 is supported on the side frame 17 inside the rear cowl 43. The fuel tank 44 is at least partially covered with the body cover 13. The fuel tank 44 includes a filler neck 45 that partitions the fuel filler port 44a. A fuel cap unit 46 that closes the fuel filler port 44a is attached to the filler neck 45. Details of the fuel cap unit 46 will be described later. A fuel pump (not shown) is attached to the fuel tank 44. The fuel in the fuel tank 44 is supplied to the fuel injection device of the internal combustion engine 27 by the action of the fuel pump.

As shown in FIG. 2, the rear cowl 43 is partitioned with an opening 47 at a position facing the fuel tank 44 behind the occupant seat 23. A fuel lid 48 is arranged in the opening 47. The fuel lid 48 covers the opening 47 from the outside of the rear cowl 43. The fuel lid 48 opens and closes the opening 47. The opening / closing operation of the fuel lid 48 is realized in the space outside the rear cowl 43. When the fuel lid 48 closes the opening 47, the outer edge of the fuel lid 48 and the outer surface of the rear cowl 43 are flush with each other.

As shown in FIG. 3, the switch unit 49 is incorporated in the inner cover 22b below the steering handle 19. The switch unit 49 is arranged at a position where the occupant seating on the occupant seat 23 can easily reach. The switch unit 49 includes a key cylinder 52 that rotatably supports the key plug 51, and the key plug 51 receives a key in the key hole 51a. When the angle of the key hole 51a is adjusted to the "OFF" position, the key can be taken in and out of the key hole 51a. When the angle of the key hole 51a is adjusted to the "ON" position, the vehicle's electrical system is switched on. When the angle of the key hole 51a exceeds the "ON" position and is adjusted to the "IGNITION" position, the starter motor of the internal combustion engine 27 starts.

The "SEAT FUEL" position is set between the "ON" position and the "OFF" position. When the angle of the key hole 51a is adjusted to the "SEAT FUEL" position, the operation of the seesaw switch 53 is permitted. In the seesaw switch 53, when the "FUEL" side is pushed in, the fuel lid 48 opens the opening 47. When the "SEAT" side is pushed in, the occupant seat 23 is unlocked. The user can access the storage box 24 according to the opening of the occupant seat 23. As shown in FIG. 1, the "SEAT" side of the seesaw switch 53 is connected to the fuel cap unit 46 by a cable 54. The seesaw switch 53 is locked except in the "SEAT FUEL" position. When the seesaw switch 53 is locked, the seesaw switch 53 is prevented from being pushed into both the "SEAT" side and the "FUEL" side.

As shown in FIG. 4, the fuel cap unit 46 is provided separately from the fuel lid 48, and includes a fuel cap 55 that closes the fuel filler port 44a of the fuel tank 44. The fuel cap 55 is swingably supported by the cap base 57 around the axis 56 between the opening position for opening the fuel filler port 44a and the closed position for closing the fuel filler port 44a. The cap base 57 is attached to the filler neck 45 around the fuel filler port 44a. The cap base 57 is fixed to the fuel tank 44 with screws 58.

A fuel tray 59 is arranged between the fuel cap unit 46 and the fuel tank 44. The fuel tray 59 spreads around the filler neck 45 and closes the space between the filler neck 45 and the rear cowl 43. Water and dust entering through the opening 47 are collected by the fuel tray 59. The fuel tray 59 may be molded from, for example, a resin material.

The fuel cap unit 46 includes a link mechanism 61 that links the opening and closing of the fuel lid 48 with the movement of the fuel cap 55. The link mechanism 61 is rotatably supported by the fuel tank 44 around the rotation axis 62, and is rotatably attached to the hinge arm 63 that supports the fuel lid 48 and the connecting axis 64 that is parallel to the axis 56 at one end. It has a link member 66 that is connected and rotatably connected to the hinge arm 63 around a connecting axis 65 that is parallel to the rotating axis 62 at the other end. The link member 66 interlocks the opening / closing operation of the fuel lid 48 with the swing of the fuel cap 55. The link member 66 may be molded from, for example, a resin material.

As shown in FIGS. 5 and 6, one end of the link member 66 is coupled to the fuel cap 55 by the first link shaft 67 so as to be relatively rotatable around the connecting axis 64. The first link shaft 67 is composed of a bush that is fixed to the fuel cap 55 with a screw 68. The bush is composed of, for example, a resin molded body having good wear resistance and slidability. For example, POM (polyacetal) resin can be used as the resin material. The connecting axis 64 is separated from the axis 56 by a first distance DS1.

The other end of the link member 66 is connected to the hinge arm 63 by the second link shaft 69 so as to be relatively rotatable around the connecting axis 65. The second link shaft 69 is composed of a bush fixed to the hinge arm by a screw 71. The bush is composed of, for example, a resin molded body having good wear resistance and slidability. For example, POM (polyacetal) resin can be used as the resin material. The connecting axis 65 separates from the rotating axis 62 at a second distance DS2, which is larger than the first distance DS1.

The hinge arm 63 is rotatably connected to the cap base 57 by a bush 72 around the rotation axis 62. The bush 72 is fixed to the cap base 57 with a screw 73. The bush 72 is made of, for example, a resin molded body having good wear resistance and slidability. For example, POM (polyacetal) resin can be used as the resin material.

The rotation axis 62 of the hinge arm 63 extends parallel to the axis 56, unlike the axis 56 of the fuel cap 55. The hinge arm 63 extends from the rotation axis 62 to the rear of the vehicle, and extends to the front of the vehicle while facing the inner surface of the fuel lid 48 and extending downward from the connection 63a. It has two curved arms 63b with a front end that are rotatably connected to the cap base 57 by a bush 72. The hinge arm 63 may be molded from, for example, a resin material. The cap base 57 is partially placed between the curved arms 63b.

As shown in FIG. 4, the fuel lid 48 has a first coupling 48a that protrudes from the inner surface facing the hinge arm 63 and is received by the front edge of the coupling 63a of the hinge arm 63, and more than the first coupling 48a. At the rear of the vehicle, a second coupling 48b is formed that projects from the inner surface facing the hinge arm 63 and is received by the trailing edge of the connecting body 63a of the hinge arm 63. The second coupling 48b may be formed of, for example, bosses arranged on both sides of the coupling 63a. The first coupling 48a is formed with a hook 75 having a claw that protrudes from the plane 74 received by the coupling 63a and extends backward. The second coupling 48b is formed with a screw hole 77 having a female screw that is bored in a flat surface 76 that is received by the coupling 63a and is carved on the inner surface. The fuel lid 48 may be molded from the same material as the rear cowl 43.

The first coupling body 48a is received by the first seat surface 78 formed on the connecting body 63a of the hinge arm 63. A slit 79 for receiving the hook 75 of the first coupling 48a is formed on the first seat surface 78. When the first coupling 48a is positioned with respect to the first seat 78, the hook 75 in the slit 79 engages the coupling 63a. The rattling of the first coupling 48a with respect to the first seat surface 78 is prevented. The hook 75 maintains contact between the first seat surface 78 and the first coupling 48a.

The second coupling body 48b is received by the second seating surface 81 formed on the connecting body 63a of the hinge arm 63. A circular hole 83 is formed in the second seat surface 81 to receive the shaft portion of the screw 82 screwed into the screw hole 77 of the second coupling 48b. The second coupling 48b is coupled to the hinge arm 63 with a screw 82. The fuel lid 48 is thus coupled to the hinge arm 63 with hooks 75 and screws 82.

The fuel lid 48 is fastened to the hinge arm 63 by the first coupling 48a and the second coupling 48b, and a top plate that covers the hinge arm 63 from above while creating a sense of unity with the rear cowl 43 at the front end of the opening 47. A hidden plate 48d that bends from the top plate 48c and covers the second coupling 48b and the screw 82 is formed from the rear while creating a sense of unity between the rear cowl 43 and the rear cowl 43 at the rear end of the opening 47.

As shown in FIG. 6, the cap base 57 is continuous with the enclosure plate 57a which surrounds the filler neck 45 and is screwed to the fuel tank 44, and is unidirectionally outward from the outer edge of the fuel filler port 44a. It has a support 57b that extends apart and is connected to a fuel cap 55 and a hinge arm 63. The support 57b has a pair of wall bodies 84 that rise from a plane including the surface of the enclosure 57a, spaced apart from each other. Here, the support 57b is arranged forward with respect to the fuel filler port 44a in the vehicle front-rear direction. Therefore, the fuel cap 55 is located on the front side of the vehicle with respect to the fuel filler port 44a when the fuel filler port 44a is opened. The fuel lid 48 is located on the front side of the vehicle with respect to the opening 47 when the opening 47 is opened.

The fuel cap 55 includes a cap body 55a that is swingably connected to the pivot shaft 85 around the axis 56. The cap body 55a has a diameter larger than that of the fuel filler port 44a and extends outward from the outer edge of the fuel filler port 44a, and extends from the disk body 86 to the front of the vehicle and rotatably receives the pivot shaft 85. It is provided with a connecting arm 87 having a through hole 87a at the front end. The pivot shaft 85 penetrates the two wall bodies 84 and is fixed to the cap base 57 with the flange 85a and the C clip 88.

A pair of cylindrical bodies 55b are formed on the connecting arm 87 so as to project coaxially outward with the pivot shaft 85. A torsion spring 89 is attached to each of the cylindrical bodies 55b. One end of the torsion spring 89 is connected to the cap base 57. The other end of the torsion spring 89 is connected to the fuel cap 55. The torsion spring 89 exerts an elastic force for driving the fuel cap 55 in the opening direction around the axis 56. Here, the torsion spring 89 exerts an elastic force for driving the fuel cap 55 to an opening position where the fuel filler port 44a is opened to the maximum extent.

As shown in FIG. 7, the connecting arm 87 is formed with a limiter 91 projecting from the outer surface so as to move away from the axis 56. A contact surface 92 is formed on the cap base 57 on the orbit of the limiter 91 which is displaced around the axis 56. The contact surface 92 limits the swing of the cap body 55a in the opening direction around the axis 56. The opening position of the fuel cap 55 is set when the limiter 91 hits the contact surface 92 when the fuel cap 55 swings.

The disk body 86 is formed with a cylindrical wall 93 that rises coaxially with the filler neck 45 toward the fuel tank 44 at the closed position of the fuel cap 55. A fuel packing 94 is mounted inside the cylindrical wall 93. The fuel packing 94 has a thick body 94a that is in close contact with the tip of the filler neck 45 around the fuel filler port 44a, and a fold body 94b that extends outward from the thick body 94a. The fold body 94b is connected to the disk body 86 by a packing holder 95 fitted inside the cylindrical wall 93. The fuel packing 94 is molded from, for example, a rubber material. The cap body 55a may be molded from, for example, an aluminum material. The packing holder 95 may be molded from, for example, an aluminum material.

The thick body 94a of the fuel packing 94 is supported by the push member 96. The push member 96 sandwiches the fuel packing 94 with the filler neck 45 at the closed position of the fuel cap 55. The push member 96 can be guided by a guide shaft 97 protruding from the disk body 86 and displaced in the line direction of the central axis of the cap body 55a. A C clip 98 is fixed to the tip of the guide shaft 97. The C clip 98 prevents the push member 96 from coming off from the guide shaft 97.

A string winding spring 99 is sandwiched between the push member 96 and the disk body 86 around the guide shaft 97. The string-wound spring 99 exerts an elastic force that applies a driving force to the push member 96 toward the C clip 98 in a direction away from the disk body 86. At the closed position of the fuel cap 55, the fuel packing 94 is pressed against the tip of the filler neck 45 by the elastic force of the string winding spring 99 with a predetermined pressure. When the fuel packing 94 is released from the restraint of the filler neck 45, the push member 96 is pressed against the C clip 98 by the elastic force of the string winding spring 99.

The fuel cap unit 46 incorporates a lock mechanism 101 that restrains the fuel cap 55 at the closed position. The lock mechanism 101 includes a slider 102 having a lock claw 102a at one end, and a pair of standing walls 104 formed on the cap body 55a to partition a guide path 103 that linearly guides the displacement of the slider 102. The slider 102 is linearly displaced along the surface of the fuel cap 55. The lock claw 102a retreats from the first position Pf toward the outer circumference of the disc body 86 and the first position Pf protruding outward from the outer circumference of the disc body 86 as much as possible according to the displacement of the slider 102. Displace with the second position Ps. The other end of the slider 102 projects outward from the edge of the cap body 55a.

A holding plate 105 that closes the guide path 103 is connected to the standing wall 104 from above. The pressing plate 105 is received by the step 104a lowered from the upper end of the standing wall 104, and is pressed against the step 104a by the caulking piece 104b bent above the step 104a.

At the other end of the slider 102, a projecting piece 102b that comes into contact with the edge of the pressing plate 105 from the outside is formed along the guide path 103. The projecting piece 102b restricts the advance of the slider 102 by contacting the edge of the pressing plate 105. At this time, the lock claw 102a is positioned at the first position Pf that protrudes outward as much as possible from the outer circumference of the disk body 86. The projecting piece 102b closes the guide path 103 with the outer edge of the fuel cap 55.

A storage space 107 for the string winding spring 106 is partitioned on the slider 102. The string-wound spring 106 is arranged in the guide path 103 in a compressed state between the slider 102 and the cap body 55a. The string-wound spring 106 comes into contact with the slider 102 at one end close to the lock claw 102a and with the cap body 55a at the other end far from the lock claw 102a. The cap body 55a is formed with a wall 108 arranged in the accommodation space 107 to support the other end of the string-wound spring 106. The string-wound spring 106 exerts an elastic force for holding the lock claw 102a at the first position Pf along the guide path 103.

The lock mechanism 101 includes a regulator 111 that is arranged at a position off the track of the fuel cap 55 that goes back and forth between the open position and the closed position and is coupled to the fuel tank 44. The restricting body 111 can restrain the lock claw 102a at the first position Pf around the axis 56 against the elastic force of the torsion spring 89. The lock claw 102a at the first position Pf engages with the regulator 111 to hold the fuel cap 55 at the closed position. The lock claw 102a at the second position Ps separates from the restricting body 111 and allows the fuel cap 55 to swing around the axis 56 between the closed position and the open position. The regulator 111 is formed on the cap base 57 rearward in the vehicle front-rear direction with respect to the fuel filler port 44a.

The lock mechanism 101 further includes an operating member 113 that is swingably supported by a support 57b of the cap base 57 around a hinge axis 112 parallel to the axis 56. The operating member 113 is arranged between one wall body 84 and the connecting arm 87. The operating member 113 is formed with a shaft body 113a coaxially with the hinge axis 112. The shaft body 113a penetrates the wall body 84 from the inside and is prevented from coming off by the C clip 114.

The operating member 113 is formed with a retaining piece 115 that receives the tip of the cable 54 at a position separated from the hinge axis 112 in the centrifugal direction. The clasp 115 is formed of, for example, a cylinder having a central axis parallel to the hinge axis 112. The tip of the cable 54 is connected to the retaining piece 115.

The cable 54 can be guided by the sheath 116 supported by the cap base 57 and displaced relative to the cap base 57 in the axial direction. When the "FUEL" side is pushed by the seesaw switch 53, the cable 54 is pulled. The operating member 113 swings in the first direction FR around the hinge axis 112. The operating member 113 is formed with a first stopper 117a that hits the edge of the wall body 84 when swinging in the first direction FR and limits swinging in the first direction FR. The first stopper 117a defines the unlocked position of the operating member 113.

A string winding spring 118 is mounted on the cable 54 in a compressed state between the operating member 113 and the cap base 57. The string-wound spring 118 exerts an elastic force for driving the operating member 113 in the second direction SE in the direction opposite to the first direction FR around the hinge axis 112. When the push on the "FUEL" side is released by the seesaw switch 53, the operating member 113 swings in the second direction SE around the hinge axis 112 by the action of the elastic force of the string winding spring 118. The operating member 113 is formed with a second stopper 117b that hits the edge of the wall body 84 when swinging in the second direction SE and limits swinging in the second direction SE. The second stopper 117b defines the lock position of the operating member 113. The elastic force of the string-wound spring 118 holds the operating member 113 at the locked position.

The operating member 113 is formed with a engaging piece 119 having a central axis parallel to the hinge axis 112 and projecting from the operating member 113 at a position separated from the hinge axis 112 in the centrifugal direction. The engagement piece 119 is formed of, for example, a cylinder having a central axis parallel to the hinge axis 112. The engagement piece 119 is arranged on the extension of the guide path 103 when the fuel cap 55 is in the closed position. The engagement piece 119 is displaced in the linear direction of the guide path 103 according to the movement of the operating member 113. When the operating member 113 is positioned at the locked position around the hinge axis 112, the engagement piece 119 comes closest to the guide path 103 on the cap body 55a. When the operating member 113 is located in the unlocked position around the hinge axis 112, the engagement piece 119 is farthest from the guide path 103 on the cap body 55a.

In the operation member 113, the engagement piece 119 connected to the lock claw 102a is arranged in the first angle region around the hinge axis 112. The distance between the central axis of the engagement piece 119 and the hinge axis 112 is set to the first length LG1. On the other hand, the clasp 115 connected to the cable 54 is arranged in a second angle region that is displaced from the first angle region by a specific angle α around the hinge axis 112. The distance between the central axis of the retaining piece 115 and the hinge axis 112 is set to the second length LG2, which is larger than the first length LG1.

At the other end of the slider 102, a hook 121 is formed which is connected to the engagement piece 119 when the fuel cap 55 is located at the closed position and is released from the engagement piece 119 when the fuel cap 55 is displaced from the closed position in the opening direction. When the operating member 113 swings from the locked position to the unlocked position when the fuel cap 55 is in the closed position, the lock claw 102a retracts from the first position Pf to the second position Ps which separates from the regulator 111. Displace.

When refueling, the key is inserted into the key hole 51a of the key plug 51 on the scooter 11. The angle of the key hole 51a is adjusted to the "SEAT FUEL" position. Subsequently, the seesaw switch 53 pushes the "FUEL" side. The cable 54 is pulled axially against the elastic force of the string spring 118. Then, as shown in FIG. 8, the operating member 113 rotates around the hinge shaft 112 in the first direction FR. In response to the swing of the operating member 113, the engagement piece 119 moves away from the guide path 103 on the extension of the guide path 103. In response to the displacement of the engagement piece 119, the slider 102 retracts against the elastic force of the string winding spring 106. In this way, the driving force is transmitted to the lock claw 102a. As a result, the lock claw 102a retracts from the first position Pf to the second position Ps. The driving force releases the lock claw 102a from the engagement with the regulator 111. The lock claw 102a separates from the regulator 111. The operation of the fuel cap 55 in the opening direction is allowed. The operating member 113 stops at the unlocked position.

Since the torsion spring 89 acts on the fuel cap 55 in the opening direction around the axis 56, the fuel cap 55 swings in the opening direction from the closed position. Then, as shown in FIG. 9, the hook 121 is separated from the engagement piece 119 in response to the swing of the fuel cap 55. The slider 102 is released from the restraint of the operating member 113. Therefore, the slider 102 moves forward by the action of the string winding spring 106, and the lock claw 102a is pressed against the first position Pf again.

When the fuel cap 55 swings in the opening direction around the axis 56, the limiter 91 hits the contact surface 92 of the cap base 57 as shown in FIG. The contact surface 92 limits the swing of the fuel cap 55 in the opening direction around the axis 56. In this way, the opening position of the fuel cap 55 is determined. The fuel filler port 44a of the fuel tank 44 is opened to the maximum.

By the action of the torsion spring 89, a driving force is generated in the fuel cap 55 in the tangential direction around the axis 56. A component of the driving force in the axial direction of the link member 66 is transmitted to the hinge arm 63. In this way, a driving force is applied to the hinge arm 63 around the rotation axis 62. The fuel lid 48 opens the opening 47 in conjunction with the opening operation of the fuel cap 55.

When the fuel cap 55 reaches the open position, the fuel lid 48 reaches the open position where the opening 47 is opened to the maximum. The fuel lid 48 in the open position is located above the occupant seat 23. The horizontal HP passing through the lower end of the fuel lid 48 when the fuel lid 48 is fully opened is located above the passenger seat 23. At this time, the second coupling 48b and the screw 82 of the fuel lid 48 are covered with the concealing plate 48d from the rear, but the screw 82 is exposed downward. As shown in FIG. 11, the refueling operator can easily insert the refueling gun 122 into the refueling port 44a from the rear through the opening 47.

Once the lock claw 102a is released from the restraint of the restrictor 111, the seesaw switch 53 can be released from the user's operating force. Then, since the operating member 113 is released from the pulling force of the cable 54, the operating member 113 rotates in the second direction SE around the hinge shaft 112 by the action of the string winding spring 118. The operating member 113 returns to the locked position.

When refueling is completed, the refueling worker pulls out the refueling gun 122 from the refueling port 44a. Subsequently, the fuel lid 48 is closed around the rotation axis 62. An operating force is applied to the fuel lid 48 by the operator's hand. A driving force is generated tangentially around the rotation axis 62 on the hinge arm 63. One component of the driving force in the axial direction of the link member 66 is transmitted to the cap body 55a of the fuel cap 55. In this way, a driving force is applied to the fuel cap 55 around the axis 56. The fuel cap 55 closes the fuel filler port 44a in conjunction with the closing operation of the fuel lid 48.

When the fuel cap 55 swings toward the closed position when the fuel filler port 44a is closed, the lock claw 102a at the first position Pf collides with the regulator 111. At this time, when an operator's operating force is further applied from the fuel lid 48, a driving force is generated on the lock claw 102a toward the second position Ps based on the slope of the regulator 111. The slider 102 retracts against the elastic force of the string spring 106. The lock claw 102a separates from the slope of the regulator 111. The fuel cap 55 further swings to reach the closed position. The refueling port 44a is closed. Since the lock claw 102a is released from the restraint of the regulator 111, the slider 102 moves forward again by the action of the string winding spring 106, and the lock claw 102a returns to the first position Pf. The lock claw 102a engages with the regulator 111. Even if the fuel lid 48 is released from the operator's operating force, the regulator 111 restrains the fuel cap in the closed position.

When the fuel cap 55 is restrained in the closed position, the fuel packing 94 is sandwiched between the push member 96 and the filler neck 45. A pressing force is applied to the push member 96 toward the filler neck 45 by the action of the string winding spring 99. Therefore, the fuel packing 94 is in close contact with the push member 96 and the filler neck 45. Good airtightness is ensured between the fuel cap 55 and the filler neck 45. When the fuel cap 55 swings toward the closed position, the operating member 113 is held in the locked position by the action of the string winding spring 118, so that the hook 121 is engaged again with the engaging piece 119 of the operating member 113.

In the lock mechanism 101 according to the present embodiment, when the operation member 113 is operated, the driving force is transmitted to the lock claw 102a. The driving force releases the lock claw 102a from the engagement with the regulator 111. In this way, the lock of the fuel cap 55 is released. The operation of the fuel cap 55 in the opening direction is allowed. The refueling port 44a can be opened. At this time, the release of the lock claw 102a can be confirmed according to the operation of the operating member 113. Although the operating member 113 generates a driving force for opening the lock claw 102a, the operating member 113 does not apply a driving force to the fuel cap 55 around the axis 56. Therefore, it is possible to prevent an operating force from being applied to the fuel cap 55 in the opening direction before the lock claw 102a is released. The strength required for the lock claw 102a is reduced. On the other hand, when the operating member is installed on the fuel cap 55, the operating force is applied to the fuel cap 55 from the operating member even if the engagement between the lock claw 102a and the restricting body 111 is maintained. .. The lock claw 102a is required to have a strength that resists the applied operating force. Such a demand for strength causes an increase in the weight of the lock claw 102a. In addition, in the present embodiment, since the operating member 113 is arranged at a position separated from the fuel cap 55, the surface of the fuel cap 55 can be tailored to a simple structure.

Since the fuel cap 55 and the restricting body 111 are supported by the fuel tank 44, the lock claw 102a on the fuel cap 55 and the restricting body 111 can be positioned with good accuracy. Engagement and disengagement of the lock claw 102a with respect to the regulator 111 is satisfactorily realized.

A torsion spring 89 that exerts an elastic force for driving the fuel cap 55 in the opening direction is connected to the fuel cap 55. When the engagement of the lock claw 102a with respect to the restricting body 111 is released, the fuel cap 55 is driven in the opening direction by the action of the elastic force. Therefore, even if the lock claw 102a projects outward from the outer circumference of the fuel cap 55 again, the relationship between the lock claw 102a and the restrictor 111 is not established. The release of the lock claw 102a is maintained.

Here, the torsion spring 89 exerts an elastic force for driving the fuel cap 55 to the opening position where the fuel filler port 44a is opened. Due to the action of elastic force, the fuel cap 55 reaches the opening position where the fuel filler port 44a is opened. In this way, the refueling port 44a can be opened even if no operating force is applied to the fuel cap 55 around the axis 56.

The lock mechanism 101 according to the present embodiment has a slider 102 that is coupled to the lock claw 102a at one end, is displaced linearly along the surface of the fuel cap 55, and protrudes from the outer periphery of the fuel cap 55 at the other end, and a fuel cap. A guide path 103 formed on the 55 to guide the displacement of the slider 102 and an extension of the guide path 103 when the fuel cap 55 is located at the closed position are arranged on the guide path 103 according to the movement of the operating member 113. The engagement piece 119 that is displaced in the linear direction of 103 is connected to the engagement piece 119 when the fuel cap 55 is positioned in the closed position, and is connected to the engagement piece 119 when the fuel cap 55 is displaced from the closed position in the opening direction. It includes a hook 121 released from 119. When the fuel cap 55 is in the closed position, the hook 121 is connected to the engagement piece 119. When the engagement piece 119 is displaced according to the movement of the operating member 113, the displacement of the engagement piece 119 is transmitted from the hook 121 to the lock claw 102a. The lock claw 102a is driven from the first position Pf toward the second position Ps. The engagement between the lock claw 102a and the regulator 111 is released. The fuel cap 55 is driven in the opening direction by the action of elastic force. When the fuel cap 55 swings in this way, the hook 121 is released from the engagement piece 119. The operating member 113 is separated from the movement of the fuel cap 55. Therefore, the fuel cap 55 can be opened to the opening position by a small operation of the operating member 113.

On the surface of the slider 102, when the lock claw 102a is located at the first position Pf, a projecting piece 102b that closes the guide path 103 at the outer edge of the fuel cap 55 projects. Since the guide path 103 of the slider 102 is blocked by the projecting piece 102b at the outer edge of the fuel cap 55, water can be prevented from entering from the guide path 103 toward the inside of the fuel cap 55.

The fuel tank 44 is provided on the outer periphery of the fuel filler port 44a, and the cap base 57 on which the support 57b is arranged on one side of the fuel filler port 44a and the regulator 111 is arranged on the other side of the fuel filler port 44a is supported. The cap base 57 unitizes the fuel cap 55, the regulator 111, the lock claw 102a, and the operating member 113. The fuel cap 55, the regulator 111, the lock claw 102a and the operating member 113 can be preassembled and assembled to the fuel tank 44. Therefore, the workability of assembly can be improved.

The scooter 11 according to the present embodiment includes a cable 54 that is connected to the operating member 113 to drive the operating member 113 in response to an axial displacement and generate a driving force to release the lock claw 102a. A driving force is generated by the operating member 113 according to the axial displacement of the cable 54. The operating member 113 is operated remotely. The opening of the fuel cap 55 can be well restricted.

The operating member 113 is swingably supported around the hinge axis 112, is connected to the lock claw 102a in the first angle range, and is displaced from the first angle range around the hinge axis 112 by a specific angle α in the second angle range. It is connected to the cable 54. The axial displacement of the cable 54 is converted into the swing of the operating member 113. The swing of the operating member 113 is converted into the displacement of the lock claw 102a. Therefore, the orientation of the cable 54 and the displacement orientation of the lock claw 102a do not have to match, and the degree of freedom in arranging the cable 54 increases.

Here, the operating member 113 is connected to the lock claw 102a at a position separated from the hinge axis 112 by a first length LG1, and is separated from the hinge axis 112 by a second length LG2 larger than the first length LG1. Is connected to the cable 54. The pulling force of the cable 54 is converted into the driving force of the lock claw 102a. Since the cable 54 has a second length LG2 larger than the first length LG1 and is separated from the hinge axis 112, the torque of the lock claw 102a is amplified with respect to the pulling force of the cable 54. The operating force applied to the cable 54 can be reduced.

Claims

A fuel tank (44) having a fuel filler port (44a) and
A fuel cap (55) that is provided so as to be freely displaceable along the track around the axis (56) and closes the fuel filler port (44a) at the closed position.
A regulator (111) provided at a position off the track of the fuel cap (55) and
A first position (Pf) that is supported by the fuel cap (55), projects outward from the outer periphery of the fuel cap (55), engages with the restricting body (111), and holds the fuel cap (55) in a closed position. ), And a saddle-riding vehicle provided with a lock claw (102a) that retracts from the first position (Pf) and displaces between the second position (Ps) that retracts from the regulator (111).
The fuel cap (55) is supported by a support (57b) that swingably supports the fuel cap (55), is connected to the lock claw (102a), and is engaged with the restricting body (111). A saddle-riding vehicle comprising an operating member (113) that generates a driving force to release the fuel.
The saddle-riding vehicle according to claim 1, wherein the restricting body (111), the support (57b), and the operating member (113) are supported by the fuel tank (44). Type vehicle.
In the saddle-riding vehicle according to claim 1 or 2, the fuel cap (55) is connected to an elastic member (89) that exerts an elastic force for driving the fuel cap (55) in the opening direction. A saddle-riding vehicle featuring.
In the saddle-riding vehicle according to claim 3, the elastic member (89) exerts an elastic force for driving the fuel cap (55) to an opening position where the fuel filler port (44a) is opened. Saddle-riding vehicle.
In the saddle-riding vehicle according to claim 4.
A slider (102) that is coupled to the lock claw (102a) at one end, displaced linearly along the surface of the fuel cap (55), and protrudes from the outer circumference of the fuel cap (55) at the other end.
A guide path (103) formed on the fuel cap (55) to guide the displacement of the slider (102),
When the fuel cap (55) is located in the closed position, it is arranged on the extension of the guide path (103) and is displaced in the linear direction of the guide path (103) according to the movement of the operating member (113). Displacement piece (119) and
It is coupled to the lock claw (102a), and when the fuel cap (55) is located in the closed position, it is connected to the engagement piece (119), and when the fuel cap (55) is displaced from the closed position in the opening direction, the engagement A saddle-riding vehicle characterized by further including a hook (121) released from one piece (119).
In the saddle-riding vehicle according to claim 5, when the lock claw (102a) protrudes from the surface of the slider (102) and the lock claw (102a) is located at the first position (Pf), the outer edge of the fuel cap (55). A saddle-riding vehicle comprising a projecting piece (102b) that closes the guideway (103).
In the saddle-riding vehicle according to any one of claims 1 to 6, the fuel tank (44) is provided on the outer periphery of the fuel filler port (44a) and is provided on one side of the fuel filler port (44a). A saddle-riding vehicle characterized in that a cap base (57) on which the support (57b) is arranged and the regulation body (111) is arranged on the other side of the fuel filler port (44a) is supported.
In the saddle-riding vehicle according to any one of claims 1 to 7, the operating member (113) is connected to the operating member (113) to drive the operating member (113) according to an axial displacement, and the lock claw (11) is used. A saddle-riding vehicle, further comprising a cable (54) that produces the driving force that opens 102a).
In the saddle-riding vehicle according to any one of claims 1 to 8, the operating member (113) is swingably supported around a hinge shaft (112), and the lock claw (11) is supported in a first angle region. A saddle-riding type that is connected to 102a) and is connected to the cable (54) in a second angle range that is displaced from the first angle range by a specific angle (α) around the hinge axis (112). vehicle.
In the saddle-riding vehicle according to claim 9, the operating member (113) is connected to the lock claw (102a) at a position separated from the hinge shaft (112) by a first length (LG1). A saddle-riding vehicle characterized in that it is connected to the cable (54) at a position separated from the hinge shaft (112) by a second length (LG2) larger than the first length (LG1).