JP2010188812A - Restriction part structure for filler cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a restriction part structure for a filler cap capable of ensuring favorable handling of a cord member without increasing the size of a vehicle even in the vehicle in which a seat is openably/closably arranged above a fuel tank. <P>SOLUTION: A seat hinge 26 is provided on a front end part of the seat 22 arranged above the fuel tank 25, and a lower hinge plate 34 of the seat hinge 26 is fixed to the fuel tank 25. The filler cap 31 is mounted to one end part of the cord member 33. A support stay 56 is mounted to the lower hinge plate 34, and the other end part of the cord member 33 is engaged with the support stay 56. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a filler cap restraining portion structure that is detachably attached to a fuel filler port of a fuel tank.

A fuel tank in an automobile is usually disposed at a low position of the vehicle, and a filler cap is detachably attached to a tip end portion of a filler tube extending from the tank body.
As a structure of the filler cap part of this type of fuel tank, a filler cap and a filler tube are connected by a cord member so that the filler cap is not separated from the predetermined range with respect to the fuel tank when fuel is supplied. Has been devised (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 11-43171

  However, this conventional structure does not inconvenience the handling of the cord member when the fuel tank is provided with a filler tube as in an automobile and there is a space beyond a certain extent around the fuel filler opening. In a small vehicle such as a motorcycle in which a seat is disposed so as to be openable and closable, it is difficult to secure a handling space for the cord member, and an attempt to secure a sufficient handling space results in an increase in the size of the vehicle.

  Accordingly, the present invention provides a filler cap restraining portion structure that can ensure good handling of a cord member without causing an increase in the size of the vehicle even in a vehicle in which a seat can be opened and closed above the fuel tank. It is something to try.

The invention according to claim 1, which solves the above problem, is provided with a filler cap (e.g., a filler cap (e.g., a fuel supply port 29 in an embodiment described later) of a fuel tank (e.g. A filler cap 31) in an embodiment described later is detachably attached, and is restrained by a cord member (for example, a cord member 33 in an embodiment described later) so that the filler cap is not separated from the fuel filler port by a certain range or more. A vehicle filler cap restraint portion structure, in which a seat (for example, a seat 22 in an embodiment described later) is disposed above the fuel tank, and this seat is attached to one end of the fuel tank with a seat hinge ( For example, it can be opened and closed via a seat hinge 26) in the embodiment described later, It said filler cap along with attached to one end portion of the cord member, the other end of the cord member is characterized by being attached to the seat hinge.
Since the seat hinge is arranged on the upper surface side of the fuel tank like the fuel filler port, the cord member is arranged along the upper surface of the fuel tank with the filler cap attached to the fuel filler port, and occupies a large space. Thus, a sufficient length of the cord member is secured.

According to a second aspect of the present invention, in the constraining portion structure of the filler cap according to the first aspect, a substantially S-shaped stay (for example, described later) made of a linear member at the fuel tank side fixing portion of the seat hinge. One end side of the support stay 56) in the embodiment is fixed, the other end side of the stay extends upward, and the other end portion of the cord member is attached to the stay through the other end side. .
When attaching the other end portion of the cord member to the fixed portion of the seat hinge on the fuel tank side, the cord member is engaged from the other end side facing the upper side of the substantially S-shaped stay, and the curved intermediate region of the stay The cord member is locked.

According to a third aspect of the present invention, in the restraint part structure of the filler cap according to the second aspect, the stay hinge is fixed to the seat hinge so that the other end side is positioned on a rotation center side of the seat hinge. A ring-shaped connecting portion (for example, a connecting portion 43 in an embodiment described later) that is engaged with the stay from the other end side is formed on the other end portion of the cord member. Features.
The other end portion of the cord member is engaged with the ring-shaped connecting portion from the other end side of the stay, and is locked to the intermediate region of the stay by moving along the substantially S-shaped curved shape of the stay. become.

According to a fourth aspect of the present invention, in the filler cap restraining portion structure according to any one of the first to third aspects, the hinge rotation center (for example, the upper part of the fuel tank) sandwiching the fuel filler opening (for example, A sheet support portion (for example, a sheet support portion 58 in the embodiment described later) for supporting the lower surface of the sheet is provided at a position opposite to the hinge shaft 51) in the embodiment described later, and the length of the cord member is The filler cap is set to a length that cannot be placed on the sheet support portion.
The filler cap is restrained by the cord member and cannot be placed on the sheet support portion, and the cord member is restrained from slackening when the sheet is closed.

According to a fifth aspect of the present invention, in the restraint portion structure of the filler cap according to any one of the first to fourth aspects, the fixing portion on the fuel tank side of the seat hinge has a substantially U opening to the upper side. A character-shaped helmet holder (for example, a helmet holder 59 in an embodiment described later) is provided.
When the seat is opened and the filler cap is removed from the fuel filler opening, the filler cap is held by the helmet holder and the displacement of the cord member is guided by the helmet holder.

According to the first aspect of the present invention, since the cord member is disposed along the upper surface of the fuel tank with the filler cap attached to the fuel filler port, the seat is disposed above the fuel tank so as to be openable and closable. Even in a vehicle, a sufficient length of the cord member can be ensured without occupying a large space, and good handling of the cord member can be ensured without causing an increase in size of the vehicle. Since the other end portion of the member is attached to the seat hinge, it is not necessary to separately provide a structure for attaching the cord member to the fuel tank with tight sealing management, and the manufacturing cost can be suppressed.

  According to the second aspect of the present invention, the cord member can be engaged from the other end side of the substantially S-shaped stay made of the linear member, and the cord member can be locked to the curved intermediate region of the stay. Therefore, the cord member can be easily attached to the fixing portion of the seat hinge while having a simple structure. Therefore, the manufacturing cost can be further reduced.

  According to the third aspect of the present invention, the cord member can be easily moved to the intermediate region of the stay by simply engaging the ring-shaped connecting portion of the cord member from the other end side of the stay and moving it to the intermediate region of the stay. In addition to being able to be locked, since the other end side of the stay is positioned on the rotation center side of the seat hinge, there is an advantage that the cord member is unlikely to come off from the other end portion of the stay due to unexpected handling.

  According to the invention described in claim 4, since the filler cap is restrained by the cord member and cannot be placed on the sheet support portion, even if the sheet is closed with the filler cap removed, the filler cap and the sheet Since the cord member is not pinched by the seat support part and the slack of the cord member when the seat is closed is suppressed, the storage space under the seat of the cord member can be reduced and the compaction can be achieved. become.

  According to the fifth aspect of the present invention, the filler cap can be stably held by the helmet holder provided in the fixed portion of the seat hinge on the fuel tank side, and the displacement of the cord member is guided by the helmet holder. Therefore, the filler cap can be kept in a position where it can be easily seen by the fueling worker and easily handled.

1 is an overall side view of a motorcycle according to an embodiment of the present invention. 1 is a partial cross-sectional side view of a fuel tank portion when a seat of a motorcycle according to an embodiment of the present invention is closed. 1 is a plan view of a fuel tank portion when a motorcycle seat according to an embodiment of the present invention is opened. FIG. 1 is a partial cross-sectional side view of a fuel tank portion when a seat of a motorcycle according to an embodiment of the present invention is opened. 1 is a perspective view of a fuel tank portion when a seat of a motorcycle according to an embodiment of the present invention is opened. It is a perspective view which shows the filler kit restraint part of one Embodiment of this invention. It is a disassembled perspective view of the attachment part of the filler kit of one Embodiment of this invention. It is explanatory drawing which shows the attachment process of the cord member of one Embodiment of this invention, (a), (b) is sectional drawing corresponding to the AA cross section of FIG. 7, (c) is B-- of (b). It is sectional drawing corresponding to B cross section.

Next, an embodiment of the present invention will be described with reference to the drawings. Hereinafter, the vehicle traveling direction will be described as the front, and the direction opposite to the vehicle traveling direction will be described as the rear.
FIG. 1 is a side view of a motorcycle in which the filler cap restraining portion structure of this embodiment is employed.
As shown in the figure, in the motorcycle 10, a main pipe 23 that extends toward the lower rear side of the vehicle is attached to a head pipe 12 that supports a front fork 13 in a turnable manner. A power unit 16 comprising an engine 17 and a transmission 18 is attached to the motor. A handle 14 is attached to the upper end portion of the front fork 13, and a front wheel 15 is rotatably supported on the lower end side.

  One end of a swing arm 19 is swingably attached to the rear side of the main pipe 23 and the power unit 16, and a rear wheel 20 is rotatably supported on the other end of the swing arm 19. The rear wheel 20 receives driving force from the power unit 16 through a chain (not shown).

  The main pipe 23 is connected to a rear frame 21 extending toward the upper rear side of the vehicle. The rear frame 21 includes a fuel tank 25 for storing fuel and a seat 22 on which a passenger is seated. It is supported. Specifically, the fuel tank 25 is fixedly installed on the upper part of the front side region of the rear frame 21 via a stay (not shown), and the seat 22 can be opened and closed at the front end of the fuel tank 25 via a seat hinge 26. It is attached. The seat 22 is opened and closed up and down with the front end side of the fuel tank 25 as a rotation fulcrum, and covers the upper side of the fuel tank 25 in the closed state. Further, as shown in FIGS. Is held in a substantially upright state. The front and both sides of the fuel tank 25 are covered with a vehicle body cover 27, and the opening above the vehicle body cover 27 is closed by the lower edge of the seat 22.

FIG. 2 is a view showing a substantially central portion of the vehicle body with the seat 22 closed, and FIGS. 3 to 5 are views showing a substantially central portion of the vehicle body with the seat 22 open.
A bulging portion 28 that bulges upward in the vehicle width direction is provided on the upper surface near the front portion of the fuel tank 25, and a substantially cylindrical fuel supply projecting upward at the center of the bulging portion 28. A mouth 29 is provided. A filler cap 31 having a gripping protrusion 30 on its upper surface is detachably attached to the fuel filler port 29. The filler cap 31 is engaged / disengaged with respect to the fuel filler port 29 by a left / right rotation operation.

  A cap engaging member 32 is attached to the filler cap 31 so as to be relatively rotatable, and one end of a cord member 33 having a predetermined length made of resin or the like is attached to the cap engaging member 32. The other end of the cord member 33 is locked to a lower hinge plate 34 (fixing member) joined to the upper surface side of the fuel tank 25 of the seat hinge 26. 2, reference numeral 50 denotes an upper hinge plate of the seat hinge 26 joined to the rear surface of the front end portion of the seat 22, and 51 denotes a hinge shaft (hinge rotation center) for connecting the upper hinge plate 50 and the lower hinge plate 34. It is.

6 is a perspective view showing a restraining portion of the filler cap 31 around the cord member 33, FIG. 7 is an exploded perspective view showing an assembled state of the cap engaging member 32 and the filler cap 31, and FIG. FIG. 11 is an assembly process diagram of the cord member 33 with respect to the cap engaging member 32.
As shown in FIG. 7, the filler cap 31 is provided with a guide convex portion 36 to be inserted into the oil supply port 29 inside the bottomed cylindrical cap main body 35, and the above-described gripping protrusion on the top surface of the top of the cap main body 35. 30 is provided.

  The cap engaging member 32 includes a cylindrical peripheral wall 37 that is fitted to the outer peripheral surface of the cap main body 35 of the filler cap 31 so as to be relatively rotatable, and upper locking claws 38 are respectively provided on upper and lower inner peripheral edge portions of the peripheral wall 37. And a plurality of lower locking claws 39 are provided. A plurality of upper locking claws 38 and lower locking claws 39 are arranged apart from each other in the circumferential direction of the peripheral wall 37 and project toward the center of the peripheral wall 37. When the peripheral wall 37 is engaged with the outer peripheral surface of the cap body 35, the upper locking claw 38 and the lower locking claw 39 come into contact with the upper and lower edges of the cap body 35, thereby The axial displacement of the cap engaging member 35 is restricted. A substantially trapezoidal locking flange 40 projects from the outer peripheral surface of the peripheral wall 37, and one end of the cord member 33 is locked to the locking flange 40. The structure of the locking flange 40 will be described in detail later.

  On the other hand, the cord member 33 is integrally provided with a substantially T-shaped locking block 42 (see FIG. 7) on one end side of the cord main body 41 having a circular cross section, and on the other end side of the cord main body 41. The connecting portion 43 is integrally provided. Here, a portion of the locking block 42 that is lowered downward from the T-shaped intersection is referred to as a leg portion 42a, and a portion that protrudes from the intersection to both sides is referred to as a head portion 42b. One end portion is integrally connected to the extended end portion of the leg portion 42 b, and the head portion 42 b is locked to the cap engaging member 32.

  As shown in FIGS. 7 and 8, the peripheral wall 37 of the cap engaging member 32 is formed with a substantially rectangular insertion hole 44 having a width capable of inserting the head portion 42 b of the locking block 42 of the cord member 33. In addition, a guide slit 45 extending from the inner peripheral surface of the peripheral wall 37 toward the distal end portion of the locking flange 40 is formed immediately below the insertion hole 44. A locking groove extends below the guide slit 45 toward the distal end portion of the locking flange 40 and finally locks the head portion 42b and the leg portion 42a of the locking block 42 in a fitted state. 46 is formed. The most part of the guide slit 45 is formed with a constant width that is slightly wider than the diameter of the cord body 41, but a pair of support protrusions 47, 47 are provided in the vicinity of the terminal end of the guide slit 45. A portion narrower than the diameter of the cord main body 41 is locally provided in the guide slit 45 by the locking projections 47.

Here, attachment of the cord member 33 to the cap engaging member 32 will be described with reference to FIG.
The cord member 33 is attached to the cap engaging member 32 at a stage before the cap engaging member 32 is attached to the filler cap 31.
First, as shown in FIG. 8A, the substantially T-shaped locking block 42 of the cord member 33 is inserted inside the peripheral wall 37 through the insertion hole 44 of the peripheral wall 37 of the cap engaging member 32. Next, as shown in FIG. 8 (b), the posture of the locking block 42 is changed from this state, the cord main body 41 is pulled out from the guide slit 45, and the cord main body 41 is moved along the guide slit 45. By moving, the locking block 42 is slid into the locking groove 46 and inserted. Thus, when the cord main body portion 41 moves in the guide slit 45 by a predetermined amount, the cord main body portion 41 gets over the support protrusions 47 and 47 and is fitted to the end portion of the guide slit 45, and the locking block 42 is locked. The groove 46 is fixed at a predetermined position. At this time, the locking block 42 is completely fitted in the locking groove 46 and does not protrude in the direction of the inner peripheral surface of the peripheral wall 37.
When the cap engaging member 32 is attached to the filler cap 31 after the cord member 33 is attached in this way, even if the locking block 42 of the cord member 33 tries to come out in the inner circumferential direction of the peripheral wall 37, the locking block 42 The movement is prevented by the outer peripheral surface of the filler cap 31.

  By the way, the lower hinge plate 34 has a plate body portion 53 fastened and fixed to stud bolts 52 and 52 projecting from the upper surface of the front end portion of the fuel tank 25, and is bent at substantially right angles on both sides of the plate body portion 53. The part flange 54 is integrally formed. In addition, a beam wall 55 is provided at a substantially central portion in the width direction of the plate main body 53 (an intermediate position between two fastening portions by the stud bolt 52). A support stay 56 made of a substantially S-shaped metal rod is fixed to the center of the upper surface of the beam wall 55 by welding.

In the support stay 56, an edge portion 56a on one end side of the S-shape is welded and fixed to the upper surface of the beam wall 55, an edge portion 56b on the other end side of the S-shape rises upward, A gap is provided between the upper surfaces of the beam walls 55. Note that the edge portion 56b on the other end side (open side) of the support stay 56 is disposed on the hinge shaft 51 side with respect to the edge portion 56a on the one end side.
The support stay 56 is engaged with a ring-shaped connecting portion 43 at the other end of the cord member 33. The connecting portion 43 of the cord member 33 is engaged from an end portion that rises upward on the other end side of the support stay 56 so that the above-described rising base portion is hidden and locked to the curved intermediate region of the support stay 33. It has become.

  Further, the seat 22 is opened and closed up and down around the seat hinge 26 on the front end side. However, as shown in FIGS. Is attached so that the cushion member 57 contacts the seat support 58 on the fuel tank 25 when the seat 22 is closed. The seat support portions 58 are disposed at both left and right positions on the rear side of the bulging portion 28 provided with the fuel filler port 29 on the upper surface of the fuel tank 25.

  The cord member 55 needs to have a length that allows at least the opening / closing operation of the filler cap 31 with respect to the fuel filler port 29 in a state where the cord member 55 is locked to the support stay 56, but the imaginary line (A), As shown in (B), the length is set so that the filler cap 31 cannot be placed on the sheet support portion 58 even when the filler cap 31 is removed from the fuel filler port 29 and extended to the maximum.

  In addition, helmet holders 59 made of a substantially U-shaped plate-like member that opens upward are integrally fixed to the side flanges 54 on both sides of the lower hinge plate 34 by welding. The front end portion 59a of each helmet holder 59 that is curved in a U-shape extends obliquely inwardly at the top of the periphery of the closed seat 22, and locks the seat 22 in a state in which the helmet ring is engaged with the bent portion 59b. By doing so, the helmet can be locked to the vehicle body. Further, each helmet holder 59 is disposed at a position closer to the rear part on the lower hinge plate 34 (position close to the fuel filler port 29), and the front end portion 59a of each helmet holder 59 is positioned sufficiently higher than the lower hinge plate 34. It extends to.

  In the above configuration, when refueling the fuel tank 25 of the motorcycle 10, the seat 22 is lifted upward with the seat hinge 26 as a center after releasing the lock of the seat 22 (see FIG. 2), and in that state the filler The filler cap 31 is removed from the fuel filler port 29 by rotating the cap 31 in a predetermined direction. When the filler cap 31 is rotated and removed from the fuel filler port 29, the filler cap 31 rotates relative to the cap engaging member 32.

The filler cap 31 removed from the fuel filler port is hooked on the bulging portion 28 of the fuel tank 25 and one helmet holder 59, for example, with the guide protrusion 35 facing upward, as indicated by a virtual line (C) in FIG. In this way, a part of the filler cap 31 is placed in contact with the helmet holder 59 so as to be inclined to the fuel tank 25, and in this state, the fuel nozzle is inserted into the fuel filler port 29 and fuel is supplied to the fuel tank 25. During this time, the filler cap 31 is connected to the lower hinge plate 34 at the front portion of the fuel tank 25 via the cord member 33, so that it cannot be placed on the bulging portion 28 and the helmet holder 59. Even in this case, the fuel supply port 29 is restricted within a certain range.
After completing the refueling in this way, the refueling port 29 is closed by the filler cap 31 and the seat 22 is closed to complete the operation.

As described above, in the restraint portion structure of the filler cap 31 of this embodiment, the other end portion of the cord member 33 locked to the filler cap 31 is connected to the lower hinge plate 34 on the fuel tank 25 via the support stay 56. Therefore, the cord member 33 is arranged so as to be substantially along the upper surface of the fuel tank 25 with the filler cap 31 attached to the fuel filler port 29.
Therefore, it is possible to ensure a sufficient length of the cord member 33 without occupying a large space in the height direction, even though the seat 22 is a motorcycle that can be opened and closed above the fuel tank 25. it can. For this reason, the favorable handling of the cord member 33 can be ensured without increasing the size of the vehicle.

  Further, in this restraint portion structure, the support portion on the other end side of the cord member 33 is not directly installed on the upper surface of the fuel tank 25 but is installed on the lower hinge plate 34 of the seat hinge 26. Therefore, it is not necessary to separately provide a dedicated structure for locking the cord member 33 on the fuel tank 25 that requires strict sealing management. Therefore, an increase in manufacturing cost can be suppressed.

  Moreover, in the restraint part structure of this embodiment, one end side of the support stay 56 made of a substantially S-shaped metal rod is fixed to the lower hinge plate 34 by welding, and the other end side extends upward. Since the connecting portion 43 of the cord member 33 is engaged from the other end side, the coat member 33 can be easily attached to the lower hinge plate 34 with a simple structure. The attached cord member 33 is unlikely to be detached from the support stay 56. Therefore, the manufacturing cost can be further reduced by this structure.

  Further, in the case of this embodiment, the other end portion that extends above the support stay 56 is fixed to the lower hinge plate 34 so as to be positioned on the hinge shaft 51 side of the seat hinge 26, and is engaged with the support stay 56. Since the connecting portion 43 of the cord member 33 to be stopped is formed in a ring shape, the ring-like connecting portion 43 of the cord member 33 is hidden from the other end side of the support stay 56 and easily locked in the intermediate region. be able to. Further, since the other end portion of the support stay 56 is positioned on the hinge shaft 51 side of the seat hinge 26, when the seat 22 is held in the substantially upright state when the seat 22 is opened, the cord member 33 is The support stay 56 is not easily pulled to the other end side, that is, the sheet 22 side. For this reason, this motorcycle has an advantage that the cord member 33 is unlikely to be detached from the support stay 56 due to unexpected handling.

  Further, in the motorcycle of this embodiment, a seat support portion 58 that supports the lower surface of the seat 22 is provided at a position opposite to the hinge shaft 51 on the fuel tank 25 sandwiching the fuel filler port 29 therebetween, and the cord member 33. The length of the filler cap 31 is set such that the filler cap 31 cannot be placed on the sheet support portion 58. Therefore, even if the sheet 22 may be closed with the filler cap 31 removed, the filler cap 31 may be closed. There is no possibility that 31 is sandwiched between the sheet 22 and the sheet support portion 58. In addition, since unnecessary slack of the cord member 33 in a state where the sheet 22 is closed can be suppressed, a useless space below the sheet 22 can be eliminated.

  Furthermore, in the case of the restraint part structure of this embodiment, since the substantially U-shaped helmet holder 59 that opens upward is integrally attached to both sides of the lower hinge plate 34 to which the support stay 56 is attached, By using the holder 59 and the bulging portion 28 of the fuel tank 25, the filler cap 31 removed from the fuel filler port 29 can be stably placed on top of these, and the tip portion from the bent portion 59b of the helmet holder 59 can be placed. By guiding the cord member 33 by the portion extending over 59a, the filler cap 31 can be always kept at an easy-to-handle position that is easily visible to the refueling operator.

  In addition, this invention is not limited to said embodiment, A various design change is possible in the range which does not deviate from the summary. For example, in the above embodiment, the filler cap restraint portion structure according to the present invention is applied to a motorcycle. However, the restraint portion structure is applied to a vehicle in which an openable / closable seat is disposed above the fuel tank. If so, the present invention can be applied to small vehicles other than motorcycles such as four-wheel buggies.

DESCRIPTION OF SYMBOLS 22 ... Seat 25 ... Fuel tank 26 ... Seat hinge 29 ... Refueling port 31 ... Filler cap 33 ... Cord member 43 ... Connection part 51 ... Hinge shaft (hinge rotation center)
56 ... Support stay
58 ... Seat support 59 ... Helmet holder

Claims (5)

A filler cap is detachably attached to the fuel tank filler port,
The filler cap is a restraint portion structure of a filler cap of a vehicle that is restrained by a cord member so that the filler cap is not separated from the fuel filler port by a certain range,
A seat is disposed above the fuel tank;
This seat is attached to one end of the fuel tank so as to be openable and closable via a seat hinge,
The filler cap is attached to one end of the cord member,
The filler cap restraining portion structure, wherein the other end portion of the cord member is attached to the seat hinge. One end side of a substantially S-shaped stay made of a linear member is fixed to a fixing portion on the fuel tank side of the seat hinge, and the other end side of the stay extends upward.
The filler cap restraint portion structure according to claim 1, wherein the other end portion of the cord member is attached to the stay through the other end side. The stay is attached to the fixing portion of the seat hinge so that the other end side is positioned on the rotation center side of the seat hinge,
3. The filler cap restraint portion structure according to claim 2, wherein a ring-shaped connecting portion that is engaged with the stay from the other end side is formed at the other end portion of the cord member. A seat support portion for supporting the lower surface of the seat is provided at a position opposite to the hinge rotation center across the fuel filler opening in the upper portion of the fuel tank,
The length of the said code member is set to the length which cannot put the said filler cap on the said sheet | seat support part, The filler cap of any one of Claims 1-3 characterized by the above-mentioned. Restraint structure.   The filler cap according to any one of claims 1 to 4, wherein a substantially U-shaped helmet holder that opens upward is provided at a fixed portion of the seat hinge on the fuel tank side. Constraint part structure.

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