WO2018179299A1 - Fuel tank fixing part structure - Google Patents

Fuel tank fixing part structure Download PDF

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Publication number
WO2018179299A1
WO2018179299A1 PCT/JP2017/013481 JP2017013481W WO2018179299A1 WO 2018179299 A1 WO2018179299 A1 WO 2018179299A1 JP 2017013481 W JP2017013481 W JP 2017013481W WO 2018179299 A1 WO2018179299 A1 WO 2018179299A1
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WO
WIPO (PCT)
Prior art keywords
stay
fuel tank
tank
plate
seat
Prior art date
Application number
PCT/JP2017/013481
Other languages
French (fr)
Japanese (ja)
Inventor
将太 鈴木
敬済 林
Original Assignee
本田技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to BR112019019314-6A priority Critical patent/BR112019019314B1/en
Priority to DE112017007349.9T priority patent/DE112017007349T5/en
Priority to JP2019508075A priority patent/JP6709879B2/en
Priority to PCT/JP2017/013481 priority patent/WO2018179299A1/en
Publication of WO2018179299A1 publication Critical patent/WO2018179299A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/063—Arrangement of tanks
    • B60K15/067—Mounting of tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
    • B62J1/12—Box-shaped seats; Bench-type seats, e.g. dual or twin seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J35/00—Fuel tanks specially adapted for motorcycles or engine-assisted cycles; Arrangements thereof

Definitions

  • the present invention relates to a structure for fixing a fuel tank in a saddle-ride type vehicle, and more particularly to a structure for fixing a rear portion of a fuel tank to a vehicle body frame side.
  • a metal fuel tank is formed into a hollow sealed container shape by aligning an outer plate press-projected upward and a bottom plate formed into an appropriate shape with a flange formed on the entire circumference and welding them together. ing.
  • the fuel tank is fixed to the vehicle body frame by locking the front end portion to the vehicle body frame and bolting a tank stay provided at the rear end portion to the vehicle body frame.
  • the tank stay is formed by projecting a part of the flange backward.
  • a flangeless tank that does not form a flange is also known. In this flangeless tank, since the tank stay cannot be formed integrally with the flange, the tank stay is welded to the rear end portion of the bottom plate (see Patent Document 1).
  • the present application distributes the load at the rear part of the fuel tank to the outer plate side and the bottom plate side and transmits it to the tank stay so that the stress concentration on the attachment portion when the tank stay is attached to the fuel tank by welding or the like. The purpose is to relax.
  • the fuel tank fixing portion structure includes a fuel tank (13) formed by vertically aligning the outer plate (13a) and the bottom plate (13b), and a rear portion extending rearward.
  • a tank stay (15) that is fixed to the vehicle body frame at the rear end of the tank stay.
  • a first stay (20) extending rearward from the rear portion of the outer plate (13a);
  • a second stay (21) extending rearward from the rear portion of the bottom plate (13b); With The rear ends of the first stay (20) and the second stay (21) are fixed to the body frame, The front end sides of the first stay (20) and the second stay (21) are separated vertically.
  • a front end portion of the first stay (20) is attached to a back surface of the outer plate (13a) at a rear portion of the fuel tank (13);
  • the front end portion of the second stay (21) is attached to the bottom surface of the bottom plate (13b) at the rear portion of the fuel tank (13).
  • the tank stay (15) comprises two members, a first stay (20) and a second stay (21).
  • the first stay (20) is attached to the outer plate (13a) by welding or the like
  • the second stay (21) is attached to the bottom plate (13b) by welding or the like. Accordingly, the weight applied from the fuel tank (13) to the tank stay (15) is distributed and added to the first stay (20) and the second stay (21), and the tank stay (15) and the fuel tank (13) are added. ) And the stress concentration on the mounting part is alleviated.
  • FIG. 1 an upper part of a front fork 3 is rotatably supported by a head pipe 2 provided at the front end of a body frame 1, and the upper part of the front fork 3 is connected to a handle 4.
  • the front wheel 5 supported by the lower end portion of the front fork 3 is steered by rotating the handle 4.
  • the vehicle body frame 1 includes a main frame 6 that obliquely descends from the head pipe 2 and extends backward, a center frame 7 that extends downward from the rear end portion thereof, and a seat rail 8 that obliquely rises from the upper portion of the center frame 7 and extends backward.
  • the center frame 7 supports a front end portion of the rear swing arm 10 so as to be swingable, and a rear wheel 11 is supported on the rear end portion of the rear swing arm 10.
  • An engine 12 is supported below the main frame 6, and the rear wheel 11 is driven by the engine 12.
  • a fuel tank 13 is supported on the main frame 6 above the engine 12.
  • a seat 14 is disposed behind the fuel tank 13 and supported by the seat rail 8.
  • the fuel tank 13 is a vertical type that has a relatively long vertical direction when viewed from the side, and is disposed so as to straddle the main frame 6. Both left and right side portions extend downward to reach the side of the engine 12.
  • the front end of the fuel tank 13 is locked to the main frame 6.
  • the rear end of the fuel tank 13 is fixed to the seat rail 8 by a tank stay (described later).
  • This fixed portion is covered with a sheet 14 from above.
  • the seat 14 is a tandem type, and the front end portion is turned up to overlap the back surface of the fuel tank 13.
  • the left and right sides of the vehicle body below the seat 14 are covered with a vehicle body cover 9.
  • FIG. 2 is a perspective view showing a fixing portion of the rear end portion of the fuel tank 13 with the seat 14 removed.
  • the lock guard described later is also omitted.
  • FIG. 3 is an enlarged cross-sectional view along the vehicle body center CT (see FIGS. 5 and 7) in a state including the seat 14 and the lock guard.
  • a tank stay 15 extending rearward is provided at the rear portion of the fuel tank 13.
  • the rear end portion of the tank stay 15 forms a frame side fixing portion 15a and is fixed to a cross plate 17 spanned between the left and right seat rails 8 by bolts 16 on the vehicle body center CT.
  • a nut 18 is welded to the cross plate 17 and protrudes upward, and a grommet bar 19 is externally fitted around the nut.
  • the tank stay 15 is attached to the frame side fixing portion 15a. At one point, it is attached to the cross plate 17 (frame side) in a vibration-proof manner.
  • a fixed structure portion for the rear portion of the tank stay 15 is disposed in a recess 22 formed behind the fuel tank 13 and below the seat 14.
  • the fuel tank 13 is a flangeless tank in which the outer plate 13a and the bottom plate 13b are vertically aligned and the periphery is welded and integrated.
  • the outer plate 13a is formed in a container shape opened downward by curving the center side upward by press molding or the like.
  • the rear part has a back surface inclined obliquely downward to the rear, and the first stay 20 of the tank stay 15 is attached to the outer surface side.
  • the bottom plate 13b is formed in a relatively flat shape by press molding or the like, and closes the opening of the outer plate 13a from below.
  • the rear portion of the bottom plate 13b has a substantially flat shape, and the second stay 21 of the tank stay 15 is attached to this lower surface.
  • the periphery of the bottom plate 13b forms a folded edge 13c that is folded upward.
  • the folded edge portion 13c is overlapped around the opening edge portion 13d which is the lower end portion of the bottom plate 13b, and the overlapped portion of the folded edge portion 13c and the opening edge portion 13d is fillet welded, whereby the outer plate 13a and the bottom plate 13b are An integrated, hollow, flangeless fuel tank 13 is formed.
  • Reference numeral 13e denotes a welded portion.
  • the tank stay 15 includes a first stay 20 whose front end is attached to the outer plate 13a, and a second stay 21 whose front end is attached to the bottom plate 13b.
  • the rear end portions of the first stay 20 and the second stay 21 form a frame-side fixing portion 15a that is overlapped and integrated and is flat when viewed from above, and is attached to the nut 18 here.
  • the tank stay 15 includes a first stay 20 attached to the back surface of the outer plate 13a and a second stay 21 welded to the bottom surface of the bottom plate 13b at the rear portion of the fuel tank 13, and the first stay 20 and Each of the second stays 21 is extended rearward to form a frame-side fixing portion 15a in which each rear portion is welded and integrated.
  • the second stay 21 is fixed to the vehicle body frame 1 side, and on the front side of the tank stay 15, the first stay 20 and Each front portion of the second stay 21 is configured to hold the rear surface of the outer plate 13a and the bottom surface of the bottom plate 13b at the rear portion of the fuel tank 13 so as to sandwich the rear surface.
  • a seat catch 23 is disposed above the frame side fixing portion 15a.
  • the seat catch 23 is supported by a rigid lock plate 24 made of metal or the like.
  • the lock plate 24 surrounds the seat catch 23 by a top wall 24a, a rear wall 24b, and left and right side walls 24c (see FIG. 10).
  • the front side is open toward the outer plate 13a.
  • the lock plate 24 can be attached to and detached from the body frame integrally with the seat catch 23.
  • the recess 22 accommodates the frame side fixing portion 15 a of the tank stay 15, its fixing portion with respect to the cross plate 17, the seat catch 23 and the lock plate 24, and the recess 22 is covered on the upper side and the left and right by the seat 14. .
  • the seat catch 23 forms a seat lock together with a hook (described later) on the seat 14 side.
  • the seat 14 is openable and closable. When the seat 14 is closed, the seat 14 is locked by the seat catch 23 and maintained in the closed state. When the seat catch 23 is unlocked, the seat 14 is unlocked and can be opened.
  • FIG. 4 and 5 show the mounting structure on the first stay 20 side
  • FIG. 4 is a perspective view obliquely from above
  • FIG. 5 is a top view.
  • the first stay 20 is a plate-like member formed by press-molding a metal plate, and has a front portion 30 inclined obliquely downward and rearward along the back surface of the outer plate 13a, and a substantially flat continuous with the lower portion. A rear portion 31.
  • the rear part 31 is also an upper part of the frame side fixing part 15a.
  • the left and right sides of the first stay 20 are formed with flanges 27 bent downward to increase the rigidity.
  • the front portion 30 is attached to the outer plate side attachment portion 25 at the rear end portion of the outer plate 13a via a reinforcing plate 32.
  • the outer plate side mounting portion 25 is a relatively flat concave portion and is symmetrical with respect to the vehicle body center CT, and a reinforcing plate 32 is welded thereto.
  • the reinforcing plate 32 is bent and welded to the outer plate side mounting portion 25 with its front and left and right sides bent to the outer plate side mounting portion 25 side.
  • Reference numeral 33 denotes a welded portion.
  • the portion of the reinforcing plate 32 to which the first stay 20 is welded is spaced upward from the surface of the outer plate side mounting portion 25, and a predetermined gap is formed between the reinforcing plate 32 and the outer plate side mounting portion 25 (see FIG. 3). ).
  • the front portion 30 is overlaid on the reinforcing plate 32 and is welded to the reinforcing plate 32 by slot welding in a slot 34 formed in advance. Since the portion to which the front portion 30 of the reinforcing plate 32 is welded is separated from the outer plate 13a, the front portion 30 is also separated from the outer plate 13a at a predetermined interval, and when the front portion 30 is slot welded to the reinforcing plate 32. The heat effect does not reach the outer plate 13a.
  • a relatively large rectangular hole-like window hole 35 extending in the left-right direction is formed so as to extend over most of the front portion 30. From this window hole 35, a welded portion 13e between the outer plate 13a and the bottom plate 13b can be seen. If it does in this way, the welding part 13e can be visually inspected through the window hole 35, and the presence or absence of the liquid leak by welding failure can be confirmed easily. Therefore, even if the first stay 20 is attached to the outer plate 13a so as to cover the welded portion 13e, the visual inspection of the welded portion 13e is possible.
  • a mounting hole 36 for mounting the grommet bar 19 (FIG. 3) is formed on the vehicle body center CT of the rear portion 31.
  • the mounting hole 36 is larger than the outer shape of the bolt 16 and slightly smaller than the maximum outer periphery of the grommet rubber bar 19.
  • a plurality of spot welding points 37 (four in this example) with the second stay 21 are provided around the mounting hole 36.
  • the second stay 21 is a plate-like member formed by press-molding a metal plate, and is attached to the bottom plate side attachment portion 26 formed at the rear portion of the bottom plate 13b via the reinforcing plate 42.
  • a portion 40 and a rear portion 41 that is slightly bent from the rear portion and overlaps the rear portion 31 of the first stay 20 are continuously formed.
  • the rear portion 41 is also a lower portion of the frame side fixing portion 15a.
  • the left and right sides of the second stay 21 form a flange portion 28 that is bent downward, and overlaps the flange 27 of the first stay 20.
  • the front portion 40 is attached to the bottom plate side attachment portion 26 via the reinforcing plate 42.
  • the bottom plate side mounting portion 26 is formed flat, and the reinforcing plate 42 made of a plate-like member that overlaps the bottom plate side mounting portion 26 has a flat plate shape and is overlapped with the bottom plate side mounting portion 26 and spot-welded.
  • Reference numeral 43 denotes a spot weld, which is provided at a plurality of points (in this example, 7 points).
  • the front end of the front portion 40 is in contact with the reinforcing plate 42 and the contact portion is fillet welded.
  • Reference numeral 44 denotes a welded portion.
  • the rear portion 41 is overlapped under the rear portion 31 of the first stay 20 and an attachment hole 36 is opened.
  • the periphery of the mounting hole 36 is spot welded at a plurality of welding portions 37 and integrated with the rear portion 31.
  • An annular bead 45 that protrudes downward is formed at the opening edge of the mounting hole 36.
  • FIG. 8 shows a state in which the lock guard 50 and the lock plate 24 are added to FIG. 2 and the left half side is broken.
  • a lock guard 50 is disposed so as to cover the window hole 35 from the rear.
  • the lock guard 50 is also arranged in front of the lock plate 24 so as to cover the opening.
  • FIG. 9 shows the lock guard 50, (A) is a perspective view from the front side, (B) is a perspective view from the rear side, and (C) is a bottom view.
  • the lock guard 50 is made of a resin plate, and integrally includes a bridge portion 51 that connects the left and right directions, a side guard portion 52 that protrudes to the left and right, and a hanging portion 53 that extends obliquely forward and downward from the bridge portion 51.
  • the left and right side guard portions 52 are provided with attachment portions 52a that are attached to the frame side fixing portion 17a (see FIG. 10) provided on the vehicle body frame side by fastening with bolts or the like.
  • the left and right end portions of the hanging portion 53 form an open end portion that bends forward, and there is a discontinuous portion between the front portions of the left and right side guard portions 52.
  • a swash plate portion 53a that expands and extends in the direction is integrally provided, and the discontinuous portion is closed by connecting the tip of each swash plate portion 53a to each side guard portion 52 in the vicinity.
  • the bridge portion 51 is inclined obliquely upward and extends upward along the outer plate 13 a and covers the upper side of the window hole 35.
  • the lower part 53 enters the window hole 35 at the lower part, covers the window hole 35 from the rear, and covers the front opening of the lock plate 24 opened forward from the front.
  • the front side of the seat catch 23 that is not covered with the lock plate 24 is covered with the lock guard 50.
  • FIG 10 is a cross-sectional view of the lock guard 50, the seat catch 23, and the lock plate 24 taken along line 10-10 of FIG.
  • the hanging part 53 closes the window hole 35 of the front part 30, so that an operation member such as a tool or a thin wire is inserted into the lock plate 24 through the window hole 35 as indicated by arrow A.
  • the left and right sides of the window hole 35 are covered with a side guard portion 52 and a swash plate portion 53a.
  • the left and right swash plate portions 53 a extend from the hanging portion 53 to the left and right sides, and cover the front side of the frame side fixing portion 17 a together with the side guard portion 52. Therefore, as indicated by arrow B, the operation member cannot be inserted from the side of the tank stay 15 (the illustrated portion is the front portion 30 and the reinforcing plate 32). The mischief with respect to the catch 23 can be prevented.
  • FIG. 13 shows the appearance of the vicinity of the rear end of the fuel tank 13 and the front end of the seat 14.
  • (A) shows the state where the lock guard 50 is provided
  • (B) shows the state where the lock guard 50 is not provided for the same parts.
  • a slight gap S is formed between the seat 14 and the seat rail 8, and the upper edge of the vehicle body cover 9 is positioned lower than the upper end of the seat rail 8. Yes, the gap S is not covered. Therefore, the operation member can be inserted under the seat 14 from the front and obliquely outward from the gap S.
  • a lock guard 50 is provided inside the gap S, and the space behind the gap S is closed by the lock guard 50. Therefore, an operation member is inserted from the gap S.
  • the lock guard 50 (particularly, the side guard portion 52 and the swash plate portion 53a) does not allow the operation member to be inserted further into the back and prevents the operation member from accessing the seat catch 23. For this reason, the mischief from the B arrow direction in FIG. 10 can be prevented.
  • FIG. 13B is an enlarged view of the circled portion in FIG. As is apparent from this figure, if the lock guard 50 is not provided, the seat catch 23 can be seen from the gap S, and the operation member can be inserted from the gap S to operate the seat catch 23. The mischief from the indicated direction cannot be prevented.
  • FIG. 11 is a cross-sectional view schematically showing the hook 60 that is locked by the seat catch 23.
  • the hook 60 is substantially U-shaped, has an upper end attached to the bottom plate 14a of the seat 14, and protrudes downward therefrom.
  • the lower portion 60a enters and exits into the lock plate 24 from a slit hole 24d that is formed in the top wall 24a of the lock plate 24 in the front-rear direction.
  • the seat 14 is closed, when the slider 61 of the seat catch 23 slides and moves above the lower portion 60a with respect to the lower portion 60a of the hook 60, the hook 60 cannot move upward (indicated by an arrow a).
  • the seat 14 is closed and locked.
  • FIG. 12 is a cross-sectional view of the seat catch 23 taken along the line 12-12 in FIG. 10, and shows a locking mechanism of the seat catch 23.
  • a U-shaped groove 63 opened upward is formed at the left end of the seat catch body 64 so that the lower portion 60a of the hook 60 enters and exits.
  • the seat catch 23 is provided with a cylinder portion 62 for moving the slider 61 forward and backward in the axial direction, and the slider 61 moves forward and backward in the direction indicated by the arrow b or c (left and right direction).
  • the slider 61 is advanced and retracted by an appropriate method such as a wire cable or a solenoid.
  • an appropriate method such as a wire cable or a solenoid.
  • reference numeral 65 denotes a return spring which is housed in a recess 66 formed in the slider 61 and has one end abutting against an end wall 66a of the recess 66 and the other end contacting a projection 67 protruding from the cylinder portion 62.
  • the slider 61 is urged in the locking direction (the direction indicated by the arrow b).
  • the fuel tank 13 is supported on the vehicle body frame 1.
  • the seat 14 is not attached, and the lock plate 24, the seat catch 23, and the lock guard 50 are not attached.
  • the fuel tank 13 is placed on the main frame 6 in FIG. 1 and pushed forward from the rear, whereby the front end is locked to the main frame 6 with an engagement structure (not shown).
  • the frame side fixing portion 15 a that is the rear end portion of the tank stay 15 is placed on the nut 18, and the mounting hole 36 is aligned with the nut 18 and fastened with the bolt 16.
  • the fuel tank 13 can be quickly fixed to the vehicle body frame 1 (cross plate 17) only by fastening at one location of the bolt 16. Thereafter, the lock plate 24 and the lock guard 50 in which the seat catch 23 is integrated are attached to the vehicle body frame, and the seat 14 is also attached.
  • the tank stay 15 includes two members, a first stay 20 and a second stay 21.
  • the first stay 20 is attached to the outer plate 13a
  • the second stay 21 is attached to the bottom plate 13b. Therefore, the weight applied from the fuel tank 13 to the tank stay 15 is distributed and added to the first stay 20 and the second stay 21, and stress applied to the attachment portion (welded portion) between the tank stay 15 and the fuel tank 13 is increased. Concentration is eased.
  • the tank stay structure is advantageous in a flangeless type fuel tank that does not have a flange that can be used for the tank stay.
  • the tank stay 15 is composed of two members, a plate-like first stay 20 and second stay 21, and the front side is separated and attached to the outer plate 13a and the bottom plate 13b, and the rear side is integrated vertically.
  • the frame side fixing portion 15a is formed, and is fixed to the cross plate 17 of the vehicle body frame 1 by bolts 16 here. For this reason, even though the tank stay 15 is composed of two members, only one point is fixed by one bolt 16, so that the two surfaces consisting of the rear surface of the outer plate 13 a and the bottom surface of the bottom plate 13 b at the rear portion of the fuel tank 13 can be obtained. Can be held.
  • the front portion 30 of the first stay 20 is attached to the outer plate side attaching portion 25 via the reinforcing plate 32 by welding, and the front portion 40 of the second stay 21 is attached to the bottom plate side attaching portion 26 via the reinforcing plate 42. It is attached by welding. For this reason, the strength of the welded portion of the outer plate 13a and the bottom plate 13b of the fuel tank 13 with respect to the first stay 20 and the second stay 21 can be increased.
  • the tank stay 15 (partially covering the rear portion of the fuel tank 13 ( Even if the first stay 20) is provided, the visibility of the rear portion of the fuel tank can be secured in the finished product inspection process of the fuel tank, and the inspection becomes easy.
  • the welded portion 13e between the outer plate and the bottom plate at the rear portion of the fuel tank can be visually recognized, so that the accuracy of the welded portion inspection at this portion can be improved and the quality of the flangeless tank can be improved.
  • the tank stay 15 can be reduced in weight by providing a relatively large window hole 35 in the front portion 30 and removing the meat.
  • a lock guard 50 covering the window hole 35 is provided, and the lock guard 50 prevents external contact with the seat catch 23 disposed behind the fuel tank 13 and below the seat 14. For this reason, even if an operation member is inserted into the window hole 35 from the outside, even the seat catch 23 cannot be inserted by the lock guard 50. Therefore, even if the window hole 35 is provided, mischief with respect to the seat catch 23 can be prevented. Can help prevent theft.
  • the target fuel tank may have a flange.
  • the lock guard 50 is not limited to the illustrated one, and may have any shape or structure as long as it can prevent external contact with the seat catch 23.
  • the attachment of the tank stay 15 to the fuel tank 13 is not limited to welding, and various other known coupling structures are possible.
  • the fuel tank fixing portion structure in the present invention is useful in a vehicle that uses a tank stay to fix the fuel tank to the vehicle body frame because stress concentration in the attachment portion of the tank stay to the fuel tank can be reduced.

Abstract

[Problem] When a tank stay for mounting a rear portion of a fuel tank to a vehicle body is to be provided, if the tank stay is welded only to a baseplate, great stress is easily concentrated on this welded part, and thus, the present invention addresses the problem of enabling dispersion of stress that is applied to the tank stay. [Solution] To a rear portion of a flangeless fuel tank 13, a first stay 20 extending rearward from an outer plate 13a, and a second stay 21 extending rearward from a baseplate 13b, are provided. Rear portions respectively of the first stay 20 and the second stay 21 are superposed on each other so as to be integrated with each other, thereby obtaining a frame-side fixing part 15a. In this state, mounting to the frame side of a vehicle body is performed by means of a bolt 16 at a single point. A front portion 30 of the first stay 20 is mounted to the back surface of the outer plate 13a through welding, and a front portion 40 of the second stay 21 is mounted to the bottom surface of the baseplate 13b through welding. The weight applied from the fuel tank 13 to a tank stay 15 is dispersed to the first stay 20 and the second stay 21, whereby the concentration of stress that is applied to a part at which the tank stay 15 is mounted to the fuel tank 13, is mitigated.

Description

燃料タンクの固定部構造Fixed structure of fuel tank
この発明は、鞍乗り型車両における燃料タンクの固定部構造に係り、特に、燃料タンクの後部を車体フレーム側へ固定する部分の構造に関する。 The present invention relates to a structure for fixing a fuel tank in a saddle-ride type vehicle, and more particularly to a structure for fixing a rear portion of a fuel tank to a vehicle body frame side.
金属製の燃料タンクは、上方へ凸にプレス成形した外板と、適宜形状に成形した底板とを、全周囲に形成したフランジ部で合わせ、ここを溶接することにより中空密閉容器状に形成されている。
また、燃料タンクの車体フレームに対する固定は、前端部を車体フレームへ係止し、後端部に設けられたタンクステーを車体フレームへボルト止めすることにより行われている。
ここで、タンクステーは、フランジの一部を後方へ突出させることにより形成される。
また、フランジを形成しないフランジレスタンクも公知である。このフランジレスタンクは、タンクステーをフランジと一体に形成できないため、底板の後端部へタンクステーを溶接している（特許文献１参照）。 A metal fuel tank is formed into a hollow sealed container shape by aligning an outer plate press-projected upward and a bottom plate formed into an appropriate shape with a flange formed on the entire circumference and welding them together. ing.
The fuel tank is fixed to the vehicle body frame by locking the front end portion to the vehicle body frame and bolting a tank stay provided at the rear end portion to the vehicle body frame.
Here, the tank stay is formed by projecting a part of the flange backward.
A flangeless tank that does not form a flange is also known. In this flangeless tank, since the tank stay cannot be formed integrally with the flange, the tank stay is welded to the rear end portion of the bottom plate (see Patent Document 1).
特開２００５－３４３２１１号公報JP-A-2005-343211
ところで、上記フランジレスタンクにおいて、タンクステーを底板へ溶接する形式では、燃料タンクの後部側における全分担荷重がタンクステーへかかることになり、底板とタンクステーとの溶接部に大きな応力が集中する。このため、タンクステーを大型化して剛性アップを図ったり、溶接部の剛性をアップする等の必要が生じる。
そこで本願は、燃料タンクの後部における荷重を、外板側及び底板側に分散させてタンクステーへ伝達させるようにして、タンクステーを燃料タンクへ溶接等により取付けたときにおける取付部に対する応力集中を緩和させることを目的とする。
By the way, in the flangeless tank, in the type in which the tank stay is welded to the bottom plate, the entire shared load on the rear side of the fuel tank is applied to the tank stay, and a large stress is concentrated on the welded portion between the bottom plate and the tank stay. . For this reason, it is necessary to increase the rigidity of the tank stay and increase the rigidity of the welded portion.
Therefore, the present application distributes the load at the rear part of the fuel tank to the outer plate side and the bottom plate side and transmits it to the tank stay so that the stress concentration on the attachment portion when the tank stay is attached to the fuel tank by welding or the like. The purpose is to relax.
上記課題を解決するため本願発明に係る燃料タンクの固定部構造は、外板（１３ａ）と底板（１３ｂ）を上下合わせにして形成される燃料タンク（１３）と、その後部から後方へ延出するタンクステー（１５）とを備え、このタンクステーの後端部にて車体フレームへ固定される燃料タンクの固定部構造において、
前記外板（１３ａ）の後部から後方へ延出する第１ステー（２０）と、
前記底板（１３ｂ）の後部から後方へ延出する第２ステー（２１）と、
を備え、
これら第１ステー（２０）と第２ステー（２１）の各後端部は前記車体フレームへ固定されるとともに、
前記第１ステー（２０）と第２ステー（２１）の各前端部側は上下に分離し、
前記第１ステー（２０）の前端部を前記燃料タンク（１３）の後部における前記外板（１３ａ）の背面に取付けられ、
前記第２ステー（２１）前端部を前記燃料タンク（１３）の後部における前記底板（１３ｂ）の底面に取付けられていることを特徴とする。
In order to solve the above problems, the fuel tank fixing portion structure according to the present invention includes a fuel tank (13) formed by vertically aligning the outer plate (13a) and the bottom plate (13b), and a rear portion extending rearward. A tank stay (15) that is fixed to the vehicle body frame at the rear end of the tank stay.
A first stay (20) extending rearward from the rear portion of the outer plate (13a);
A second stay (21) extending rearward from the rear portion of the bottom plate (13b);
With
The rear ends of the first stay (20) and the second stay (21) are fixed to the body frame,
The front end sides of the first stay (20) and the second stay (21) are separated vertically.
A front end portion of the first stay (20) is attached to a back surface of the outer plate (13a) at a rear portion of the fuel tank (13);
The front end portion of the second stay (21) is attached to the bottom surface of the bottom plate (13b) at the rear portion of the fuel tank (13).
車体フレームに対する支持状態において、燃料タンク（１３）の重量はタンクステー（１５）へ加わる。しかし、タンクステー（１５）は、第１ステー（２０）と第２ステー（２１）の２部材からなり、第１ステー（２０）は外板（１３ａ）へ溶接等で取付けられ、第２ステー（２１）は底板（１３ｂ）へ溶接等で取付けられている。したがって、燃料タンク（１３）からタンクステー（１５）に加わる重量は、第１ステー（２０）と第２ステー（２１）へ分散して加わることになり、タンクステー（１５）と燃料タンク（１３）との取付部に対する応力の集中が緩和される。
その結果、底板のみへタンクステーを取付けた場合のような大きな応力集中を回避でき、燃料タンクのタンクステーとの取付部における重量の増加を伴うような特別な補強構造を不要にできるので、燃料タンクとタンクステーの取付部における必要な強度を維持しつつも、この部分の構造を簡単にできるとともに燃料タンクとタンクステーからなる燃料タンクの固定部構造を軽量化できる。
In the support state with respect to the vehicle body frame, the weight of the fuel tank (13) is added to the tank stay (15). However, the tank stay (15) comprises two members, a first stay (20) and a second stay (21). The first stay (20) is attached to the outer plate (13a) by welding or the like, and the second stay (21) is attached to the bottom plate (13b) by welding or the like. Accordingly, the weight applied from the fuel tank (13) to the tank stay (15) is distributed and added to the first stay (20) and the second stay (21), and the tank stay (15) and the fuel tank (13) are added. ) And the stress concentration on the mounting part is alleviated.
As a result, it is possible to avoid a large stress concentration as in the case where the tank stay is attached only to the bottom plate, and it is possible to eliminate the need for a special reinforcing structure that increases the weight at the attachment portion of the fuel tank to the tank stay. While maintaining the required strength of the tank and the tank stay mounting portion, the structure of this portion can be simplified and the weight of the fuel tank fixing portion structure comprising the fuel tank and the tank stay can be reduced.
実施形態に係る自動２輪車の側面図Side view of a motorcycle according to an embodiment 燃料タンクの後部側固定部を示す斜視図The perspective view which shows the rear side fixing | fixed part of a fuel tank 燃料タンクの後部側固定部を示す断面図Sectional view showing the rear side fixing part of the fuel tank 燃料タンクの後部側固定部の上方を示す斜視図The perspective view which shows the upper part of the rear side fixing | fixed part of a fuel tank 上記部分の上方視図Top view of the above part 燃料タンクの後部側固定部の底面側を示す斜視図The perspective view which shows the bottom face side of the rear side fixing | fixed part of a fuel tank 上記部分の下方視図Bottom view of the above part ロックガードを備えた、図２と同様部位の斜視図A perspective view of the same part as FIG. 2 with a lock guard ロックガードを示す図Figure showing lock guard ロックガード部分の平断面図Flat cross section of lock guard シートロック部分の構造を示す断面図Sectional view showing structure of seat lock part シートキャッチの断面図Cross section of seat catch 車両の外側部からロックガード部分を示す図The figure which shows a lock guard part from the outside part of vehicles
以下、図面に基づいて一実施の形態を説明する。なお、前後・左右等の方向は、本願発明を適用する車両における各方向を基準とする。また、必要により適宜な図中に、前方を矢示Ｆｒ、後方を矢示Ｒｒ、左方を矢示ＬＨ、右方を矢示ＲＨとして示す。
図１において、車体フレーム１の前端に設けられたヘッドパイプ２にフロントフォーク３の上部が回動自在に支持され、フロントフォーク３の上部はハンドル４に連結されている。フロントフォーク３の下端部に支持された前輪５は、ハンドル４を回動させることにより操向される。 Hereinafter, an embodiment will be described based on the drawings. The directions such as front and rear, left and right are based on the directions in the vehicle to which the present invention is applied. In addition, in an appropriate drawing as necessary, the front is indicated by arrow Fr, the rear is indicated by arrow Rr, the left is indicated by arrow LH, and the right is indicated by arrow RH.
In FIG. 1, an upper part of a front fork 3 is rotatably supported by a head pipe 2 provided at the front end of a body frame 1, and the upper part of the front fork 3 is connected to a handle 4. The front wheel 5 supported by the lower end portion of the front fork 3 is steered by rotating the handle 4.
車体フレーム１は、ヘッドパイプ２から斜め下がり後方へ延びるメインフレーム６と、その後端部から下方へ延出するセンターフレーム７と、センターフレーム７の上部より斜め上がり後方へ延出するシートレール８を備える。
センターフレーム７にはリヤスイングアーム１０の前端部が揺動自在に支持され、リヤスイングアーム１０の後端部には後輪１１が支持される。メインフレーム６の下方にはエンジン１２が支持され、このエンジン１２により後輪１１が駆動される。 The vehicle body frame 1 includes a main frame 6 that obliquely descends from the head pipe 2 and extends backward, a center frame 7 that extends downward from the rear end portion thereof, and a seat rail 8 that obliquely rises from the upper portion of the center frame 7 and extends backward. Prepare.
The center frame 7 supports a front end portion of the rear swing arm 10 so as to be swingable, and a rear wheel 11 is supported on the rear end portion of the rear swing arm 10. An engine 12 is supported below the main frame 6, and the rear wheel 11 is driven by the engine 12.
エンジン１２の上方となるメインフレーム６上には、燃料タンク１３が支持される。燃料タンク１３の後方にはシート１４が配置され、シートレール８に支持される。
燃料タンク１３は側面視で比較的上下方向が長い縦型であり、メインフレーム６を跨いで配置され、左右の両側部は下方へ延びてエンジン１２の側方まで達している。 A fuel tank 13 is supported on the main frame 6 above the engine 12. A seat 14 is disposed behind the fuel tank 13 and supported by the seat rail 8.
The fuel tank 13 is a vertical type that has a relatively long vertical direction when viewed from the side, and is disposed so as to straddle the main frame 6. Both left and right side portions extend downward to reach the side of the engine 12.
燃料タンク１３の前端部はメインフレーム６に対して係止されている。燃料タンク１３の後端部はタンクステー（後述）によりシートレール８へ固定される。この固定部は上方からシート１４にて覆われる。シート１４はタンデム型であり、前端部は上返りして燃料タンク１３の背面へ重なっている。シート１４下方の車体は、左右を車体カバー９により覆われている。 The front end of the fuel tank 13 is locked to the main frame 6. The rear end of the fuel tank 13 is fixed to the seat rail 8 by a tank stay (described later). This fixed portion is covered with a sheet 14 from above. The seat 14 is a tandem type, and the front end portion is turned up to overlap the back surface of the fuel tank 13. The left and right sides of the vehicle body below the seat 14 are covered with a vehicle body cover 9.
図２は、シート１４を外した状態で燃料タンク１３後端部の固定部を示す斜視図である。なお、後述するロックガードも省略してある。
図３は、シート１４及びロックガードを含む状態で車体中心ＣＴ（図５、図７参照）に沿う拡大断面図である。 FIG. 2 is a perspective view showing a fixing portion of the rear end portion of the fuel tank 13 with the seat 14 removed. The lock guard described later is also omitted.
FIG. 3 is an enlarged cross-sectional view along the vehicle body center CT (see FIGS. 5 and 7) in a state including the seat 14 and the lock guard.
これらの図において、燃料タンク１３の後部には、後方へ延出するタンクステー１５が設けられている。タンクステー１５の後端部はフレーム側固定部１５ａをなし、車体中心ＣＴ上にてボルト１６により左右のシートレール８間に掛け渡されたクロスプレート１７へ固定されている。 In these drawings, a tank stay 15 extending rearward is provided at the rear portion of the fuel tank 13. The rear end portion of the tank stay 15 forms a frame side fixing portion 15a and is fixed to a cross plate 17 spanned between the left and right seat rails 8 by bolts 16 on the vehicle body center CT.
図３に示すように、クロスプレート１７にはナット１８が溶接されて上方へ突出し、その周囲にグロメットラバー１９が外嵌されている。グロメットラバー１９の外周をタンクステー１５のフレーム側固定部１５ａに設けられた取付穴３６に嵌合し、さらにボルト１６をナット１８へ締結することにより、タンクステー１５は、フレーム側固定部１５ａにおける１点でクロスプレート１７（フレーム側）へ防振取付されている。
このタンクステー１５の後部に対する固定構造部分は、燃料タンク１３の後方かつシート１４の下方に形成されている凹部２２内に配置されている。 As shown in FIG. 3, a nut 18 is welded to the cross plate 17 and protrudes upward, and a grommet bar 19 is externally fitted around the nut. By fitting the outer periphery of the grommetra bar 19 into a mounting hole 36 provided in the frame side fixing portion 15a of the tank stay 15 and further fastening the bolt 16 to the nut 18, the tank stay 15 is attached to the frame side fixing portion 15a. At one point, it is attached to the cross plate 17 (frame side) in a vibration-proof manner.
A fixed structure portion for the rear portion of the tank stay 15 is disposed in a recess 22 formed behind the fuel tank 13 and below the seat 14.
燃料タンク１３は外板１３ａと底板１３ｂを上下に合わせ、周囲を溶接一体化したフランジレスタンクである。
外板１３ａは、プレス成形等により中央側を上方へ凸に湾曲形成することにより、下方へ開放された容器状をなす。その後部は、後方へ斜め下がりに傾斜する背面をなし、この外表面側に、タンクステー１５の第１ステー２０が取付けられている。 The fuel tank 13 is a flangeless tank in which the outer plate 13a and the bottom plate 13b are vertically aligned and the periphery is welded and integrated.
The outer plate 13a is formed in a container shape opened downward by curving the center side upward by press molding or the like. The rear part has a back surface inclined obliquely downward to the rear, and the first stay 20 of the tank stay 15 is attached to the outer surface side.
底板１３ｂは、プレス成形等により比較的平坦状に形成され、外板１３ａの開口部を下方から塞ぐようになっている。底板１３ｂの後部は略平坦状をなし、この下面にタンクステー１５の第２ステー２１が取付けられている。 The bottom plate 13b is formed in a relatively flat shape by press molding or the like, and closes the opening of the outer plate 13a from below. The rear portion of the bottom plate 13b has a substantially flat shape, and the second stay 21 of the tank stay 15 is attached to this lower surface.
底板１３ｂの周囲は、上方へ折り返された折り返し縁部１３ｃをなす。この折り返し縁部１３ｃを、底板１３ｂの下端部である開口縁部１３ｄの周囲へ重ね、折り返し縁部１３ｃと開口縁部１３ｄの重合部を隅肉溶接することにより、外板１３ａと底板１３ｂが一体化され、中空でフランジレスの燃料タンク１３が形成されている。１３ｅは溶接部を示す。 The periphery of the bottom plate 13b forms a folded edge 13c that is folded upward. The folded edge portion 13c is overlapped around the opening edge portion 13d which is the lower end portion of the bottom plate 13b, and the overlapped portion of the folded edge portion 13c and the opening edge portion 13d is fillet welded, whereby the outer plate 13a and the bottom plate 13b are An integrated, hollow, flangeless fuel tank 13 is formed. Reference numeral 13e denotes a welded portion.
タンクステー１５は、前端部を外板１３ａへ取付けられている第１ステー２０と、前端部を底板１３ｂへ取付けられている第２ステー２１とで構成されている。
第１ステー２０と第２ステー２１の各後端部は、重ね合わされて一体化された、上方視で平坦なフレーム側固定部１５ａをなし、ここでナット１８へ取付けられる。 The tank stay 15 includes a first stay 20 whose front end is attached to the outer plate 13a, and a second stay 21 whose front end is attached to the bottom plate 13b.
The rear end portions of the first stay 20 and the second stay 21 form a frame-side fixing portion 15a that is overlapped and integrated and is flat when viewed from above, and is attached to the nut 18 here.
すなわち、タンクステー１５は、燃料タンク１３の後部において、外板１３ａの背面に取付けられた第１ステー２０と、底板１３ｂの底面に溶接された第２ステー２１を備え、これら第１ステー２０及び第２ステー２１をそれぞれを後方へ延ばして、各々の後部を溶接一体化したフレーム側固定部１５ａとし、ここで車体フレーム１側へ固定するとともに、タンクステー１５の前側では、第１ステー２０と第２ステー２１の各前部で、燃料タンク１３の後部における外板１３ａの背面と底板１３ｂの底面を挟むようにして把持するように構成した。 That is, the tank stay 15 includes a first stay 20 attached to the back surface of the outer plate 13a and a second stay 21 welded to the bottom surface of the bottom plate 13b at the rear portion of the fuel tank 13, and the first stay 20 and Each of the second stays 21 is extended rearward to form a frame-side fixing portion 15a in which each rear portion is welded and integrated. Here, the second stay 21 is fixed to the vehicle body frame 1 side, and on the front side of the tank stay 15, the first stay 20 and Each front portion of the second stay 21 is configured to hold the rear surface of the outer plate 13a and the bottom surface of the bottom plate 13b at the rear portion of the fuel tank 13 so as to sandwich the rear surface.
フレーム側固定部１５ａの上方には、シートキャッチ２３が配置されている。シートキャッチ２３は、金属製等の剛性のあるロックプレート２４に支持されている。ロックプレート２４は、頂壁２４ａ、後壁２４ｂ及び左右の側壁２４ｃ（図１０参照）によりシートキャッチ２３の周囲を囲んでいる。前方側は外板１３ａに向かって開放されている。
ロックプレート２４は車体フレームに対してシートキャッチ２３と一体になって着脱できるようにっている。 A seat catch 23 is disposed above the frame side fixing portion 15a. The seat catch 23 is supported by a rigid lock plate 24 made of metal or the like. The lock plate 24 surrounds the seat catch 23 by a top wall 24a, a rear wall 24b, and left and right side walls 24c (see FIG. 10). The front side is open toward the outer plate 13a.
The lock plate 24 can be attached to and detached from the body frame integrally with the seat catch 23.
凹部２２には、タンクステー１５のフレーム側固定部１５ａ、そのクロスプレート１７に対する固定部、並びにシートキャッチ２３及びロックプレート２４が収容され、この凹部２２はシート１４によって上方及び左右を覆われている。
シートキャッチ２３は、シート１４側のフック（後述）とともにシートロックを構成している。シート１４は、開閉自在であり、シート１４を閉じるとシートキャッチ２３によりロックされて閉じられた状態が維持される。また、シートキャッチ２３をアンロック操作すると、シート１４はロックが解除されて開くことが可能になる。 The recess 22 accommodates the frame side fixing portion 15 a of the tank stay 15, its fixing portion with respect to the cross plate 17, the seat catch 23 and the lock plate 24, and the recess 22 is covered on the upper side and the left and right by the seat 14. .
The seat catch 23 forms a seat lock together with a hook (described later) on the seat 14 side. The seat 14 is openable and closable. When the seat 14 is closed, the seat 14 is locked by the seat catch 23 and maintained in the closed state. When the seat catch 23 is unlocked, the seat 14 is unlocked and can be opened.
以下、燃料タンク１３に対するタンクステー１５の取付について詳述する。
図４及び図５は、第１ステー２０側の取付構造を示し、図４は斜め上方からの斜視図、図５は上方視図である。 Hereinafter, the attachment of the tank stay 15 to the fuel tank 13 will be described in detail.
4 and 5 show the mounting structure on the first stay 20 side, FIG. 4 is a perspective view obliquely from above, and FIG. 5 is a top view.
これらの図において、第１ステー２０は、金属板をプレス成形した板状部材であり、外板１３ａの背面に沿って後方へ斜め下がりに傾斜する前部３０と、この下部に連続する略平坦な後部３１とからなる。後部３１はフレーム側固定部１５ａの上側部分でもある。第１ステー２０の左右は、下方へ折り曲げられたフランジ２７をなし、剛性を高くしている。 In these drawings, the first stay 20 is a plate-like member formed by press-molding a metal plate, and has a front portion 30 inclined obliquely downward and rearward along the back surface of the outer plate 13a, and a substantially flat continuous with the lower portion. A rear portion 31. The rear part 31 is also an upper part of the frame side fixing part 15a. The left and right sides of the first stay 20 are formed with flanges 27 bent downward to increase the rigidity.
前部３０は、補強プレート３２を介して外板１３ａの後端部における外板側取付部２５へ取付けられている。外板側取付部２５は比較的平坦な凹部であり、車体中心ＣＴを挟んで左右対称をなし、ここに補強プレート３２が溶接されている。補強プレート３２は前部及び左右を外板側取付部２５側へ折り曲げ、この折り曲げ部の先端を外板側取付部２５へ当接させて隅肉溶接されている。３３は溶接部を示す。補強プレート３２の第１ステー２０が溶接される部分は外板側取付部２５の表面から上方へ離隔し、外板側取付部２５との間に所定の間隙が形成されている（図３参照）。 The front portion 30 is attached to the outer plate side attachment portion 25 at the rear end portion of the outer plate 13a via a reinforcing plate 32. The outer plate side mounting portion 25 is a relatively flat concave portion and is symmetrical with respect to the vehicle body center CT, and a reinforcing plate 32 is welded thereto. The reinforcing plate 32 is bent and welded to the outer plate side mounting portion 25 with its front and left and right sides bent to the outer plate side mounting portion 25 side. Reference numeral 33 denotes a welded portion. The portion of the reinforcing plate 32 to which the first stay 20 is welded is spaced upward from the surface of the outer plate side mounting portion 25, and a predetermined gap is formed between the reinforcing plate 32 and the outer plate side mounting portion 25 (see FIG. 3). ).
前部３０は補強プレート３２の上に重ねられ、予め形成されているスロット３４において、スロット溶接により補強プレート３２へ溶接されている。補強プレート３２の前部３０が溶接される部分が外板１３ａから離れているため、前部３０も外板１３ａから所定間隔で離れており、前部３０を補強プレート３２へスロット溶接する際における熱影響が外板１３ａへ及ばないようになっている。 The front portion 30 is overlaid on the reinforcing plate 32 and is welded to the reinforcing plate 32 by slot welding in a slot 34 formed in advance. Since the portion to which the front portion 30 of the reinforcing plate 32 is welded is separated from the outer plate 13a, the front portion 30 is also separated from the outer plate 13a at a predetermined interval, and when the front portion 30 is slot welded to the reinforcing plate 32. The heat effect does not reach the outer plate 13a.
前部３０のスロット３４より下方には、左右方向へ長くかつ比較的大きな角穴状の窓穴３５が前部３０の大半部分に及んで形成されている。この窓穴３５より、外板１３ａと底板１３ｂとの溶接部１３ｅが見えている。
このようにすると、窓穴３５を通して溶接部１３ｅを目視検査でき、溶接不良による液漏れの有無を容易に確認できる。したがって、溶接部１３ｅの上を覆うように第１ステー２０を外板１３ａに取付けても、溶接部１３ｅの目視検査が可能になる。 Below the slot 34 of the front portion 30, a relatively large rectangular hole-like window hole 35 extending in the left-right direction is formed so as to extend over most of the front portion 30. From this window hole 35, a welded portion 13e between the outer plate 13a and the bottom plate 13b can be seen.
If it does in this way, the welding part 13e can be visually inspected through the window hole 35, and the presence or absence of the liquid leak by welding failure can be confirmed easily. Therefore, even if the first stay 20 is attached to the outer plate 13a so as to cover the welded portion 13e, the visual inspection of the welded portion 13e is possible.
後部３１の車体中心ＣＴ上には、グロメットラバー１９（図３）を取付けるための取付穴３６が形成されている。取付穴３６はボルト１６の外形より大きく、グロメットラバー１９の最大外周よりも若干小さい。
取付穴３６の周囲には第２ステー２１とのスポット溶接点３７が複数（この例では４点）設けられている。 A mounting hole 36 for mounting the grommet bar 19 (FIG. 3) is formed on the vehicle body center CT of the rear portion 31. The mounting hole 36 is larger than the outer shape of the bolt 16 and slightly smaller than the maximum outer periphery of the grommet rubber bar 19.
A plurality of spot welding points 37 (four in this example) with the second stay 21 are provided around the mounting hole 36.
図６及び図７は第２ステー２１を示し、図６は下方からの斜視図、図７は下方視図である。
これらの図において、第２ステー２１は金属製のプレートをプレス成形してなる板状部材であり、底板１３ｂの後部に形成された底板側取付部２６に、補強プレート４２を介して取付けられる前部４０と、その後部から若干屈曲して第１ステー２０の後部３１へ重なる後部４１とを連続して形成されている。後部４１はフレーム側固定部１５ａの下側部分でもある。
第２ステー２１の左右は下方へ折れ曲がるフランジ部２８をなし、第１ステー２０のフランジ２７の内側へ重なるようになっている。 6 and 7 show the second stay 21, FIG. 6 is a perspective view from below, and FIG. 7 is a bottom view.
In these drawings, the second stay 21 is a plate-like member formed by press-molding a metal plate, and is attached to the bottom plate side attachment portion 26 formed at the rear portion of the bottom plate 13b via the reinforcing plate 42. A portion 40 and a rear portion 41 that is slightly bent from the rear portion and overlaps the rear portion 31 of the first stay 20 are continuously formed. The rear portion 41 is also a lower portion of the frame side fixing portion 15a.
The left and right sides of the second stay 21 form a flange portion 28 that is bent downward, and overlaps the flange 27 of the first stay 20.
前部４０は、補強プレート４２を介して底板側取付部２６へ取付けられる。底板側取付部２６は平坦に形成され、ここに重なる板状部材からなる補強プレート４２は平板状であり、底板側取付部２６へ重ねられてスポット溶接されている。４３はスポット溶接部であり、複数カ所（この例では７点）設けられる。 The front portion 40 is attached to the bottom plate side attachment portion 26 via the reinforcing plate 42. The bottom plate side mounting portion 26 is formed flat, and the reinforcing plate 42 made of a plate-like member that overlaps the bottom plate side mounting portion 26 has a flat plate shape and is overlapped with the bottom plate side mounting portion 26 and spot-welded. Reference numeral 43 denotes a spot weld, which is provided at a plurality of points (in this example, 7 points).
前部４０の前端は補強プレート４２へ当接され、この当接部を隅肉溶接されている。４４は溶接部を示す。
後部４１は第１ステー２０の後部３１の下に重ねられ、取付穴３６が開口されている。取付穴３６の周囲は複数カ所の溶接部３７でスポット溶接されて後部３１と一体化されている。また、取付穴３６の開口縁部には下方へ隆起する環状ビード４５が形成されている。 The front end of the front portion 40 is in contact with the reinforcing plate 42 and the contact portion is fillet welded. Reference numeral 44 denotes a welded portion.
The rear portion 41 is overlapped under the rear portion 31 of the first stay 20 and an attachment hole 36 is opened. The periphery of the mounting hole 36 is spot welded at a plurality of welding portions 37 and integrated with the rear portion 31. An annular bead 45 that protrudes downward is formed at the opening edge of the mounting hole 36.
次に、シートロックの構造及びロックガード５０の詳細を説明する。
図８は、図２に対してロックガード５０及びロックプレート２４を加えるとともに、左半分側を破断した状態で示す。この図において、窓穴３５を後方から覆うようにロックガード５０が配置されている。ロックガード５０はロックプレート２４の前方にも、その開口部を覆うように配置されている。 Next, the structure of the seat lock and details of the lock guard 50 will be described.
FIG. 8 shows a state in which the lock guard 50 and the lock plate 24 are added to FIG. 2 and the left half side is broken. In this figure, a lock guard 50 is disposed so as to cover the window hole 35 from the rear. The lock guard 50 is also arranged in front of the lock plate 24 so as to cover the opening.
図９はロックガード５０を示し、（Ａ）は前方側からの斜視図、（Ｂ）は後方からの斜視図、（Ｃ）は下方視図である。
ロックガード５０は樹脂製プレートからなり、左右方向を連結するブリッジ部５１、その左右に張り出すサイドガード部５２及びブリッジ部５１から前方斜め下がりに延出する垂下部５３を一体に有する。左右のサイドガード部５２には、車体フレーム側に設けられたフレーム側固定部１７ａ（図１０参照）へボルトによる締結等で取付けられる取付部５２ａが設けられている。垂下部５３の左右側端部は前方へ曲がる開放端部をなし、左右のサイドガード部５２の前部との間には不連続部があるが、垂下部５３の左右側部から前方かつ側方へ拡開して延びる斜板部５３ａが一体に設けられ、各斜板部５３ａの先端がそれぞれが近傍の各サイドガード部５２へ接続することにより、上記不連続部が閉じられている。 FIG. 9 shows the lock guard 50, (A) is a perspective view from the front side, (B) is a perspective view from the rear side, and (C) is a bottom view.
The lock guard 50 is made of a resin plate, and integrally includes a bridge portion 51 that connects the left and right directions, a side guard portion 52 that protrudes to the left and right, and a hanging portion 53 that extends obliquely forward and downward from the bridge portion 51. The left and right side guard portions 52 are provided with attachment portions 52a that are attached to the frame side fixing portion 17a (see FIG. 10) provided on the vehicle body frame side by fastening with bolts or the like. The left and right end portions of the hanging portion 53 form an open end portion that bends forward, and there is a discontinuous portion between the front portions of the left and right side guard portions 52. A swash plate portion 53a that expands and extends in the direction is integrally provided, and the discontinuous portion is closed by connecting the tip of each swash plate portion 53a to each side guard portion 52 in the vicinity.
図３にも示すように、ブリッジ部５１は外板１３ａに沿って前方へ斜め上がりに傾斜して上方へ延出し、窓穴３５の上部側を覆う。垂下部５３は下部が窓穴３５内へ入り込み、窓穴３５を後方から覆うとともに、前方へ開放されているロックプレート２４の前方開口部を前方から覆う。これにより、シートキャッチ２３は、ロックプレート２４で覆われていない前方側をロックガード５０により覆われる。 As shown in FIG. 3, the bridge portion 51 is inclined obliquely upward and extends upward along the outer plate 13 a and covers the upper side of the window hole 35. The lower part 53 enters the window hole 35 at the lower part, covers the window hole 35 from the rear, and covers the front opening of the lock plate 24 opened forward from the front. Thus, the front side of the seat catch 23 that is not covered with the lock plate 24 is covered with the lock guard 50.
図１０は、図３の１０－１０線に沿うロックガード５０及びシートキャッチ２３及びロックプレート２４の断面図である。この図に示すように、垂下部５３が前部３０の窓穴３５を塞ぐので、窓穴３５を通して、矢示Ａのように、ロックプレート２４の内側へ工具や細い針金などの操作部材を入れてもシートキャッチ２３へアクセスできないようにして、窓穴３５の後方に位置するシートキャッチ２３のロック機構（後述）を不本意に操作するいたずらを防止できる。 10 is a cross-sectional view of the lock guard 50, the seat catch 23, and the lock plate 24 taken along line 10-10 of FIG. As shown in this figure, the hanging part 53 closes the window hole 35 of the front part 30, so that an operation member such as a tool or a thin wire is inserted into the lock plate 24 through the window hole 35 as indicated by arrow A. However, it is possible to prevent access to the seat catch 23 and to prevent mischief of unintentionally operating the locking mechanism (described later) of the seat catch 23 located behind the window hole 35.
窓穴３５の後方左右は、サイドガード部５２及び斜板部５３ａにより覆われている。左右の斜板部５３ａは垂下部５３から左右の側方へ長く張り出し、サイドガード部５２とともにフレーム側固定部１７ａの前方まで覆っている。したがって、Ｂ矢示のように、タンクステー１５（図示部分は前部３０及び補強プレート３２）の側方からも操作部材を入れることができないようにしてあり、窓穴３５の左右両側からもシートキャッチ２３に対するいたずらを防止できようになっている。 The left and right sides of the window hole 35 are covered with a side guard portion 52 and a swash plate portion 53a. The left and right swash plate portions 53 a extend from the hanging portion 53 to the left and right sides, and cover the front side of the frame side fixing portion 17 a together with the side guard portion 52. Therefore, as indicated by arrow B, the operation member cannot be inserted from the side of the tank stay 15 (the illustrated portion is the front portion 30 and the reinforcing plate 32). The mischief with respect to the catch 23 can be prevented.
Ｂ矢示方向におけるいたずらを防止構造についてさらに説明する。図１３は燃料タンク１３の後端部とシート１４の前端部との近傍部分における外観状態を示す。（Ａ）はロックガード５０を設けた状態、（Ｂ）はロックガード５０を設けない状態を、それぞれ同じ部位について示している。
この部分では、図１３の（Ｂ）に示すように、シート１４とシートレール８の間に若干の間隙Ｓが形成され、しかも車体カバー９の上縁部がシートレール８の上端より低い位置にあり、間隙Ｓを覆っていない。
したがって、この間隙Ｓから操作部材をシート１４の下へ前方かつ斜め外側方より入れることができる。 The structure for preventing mischief in the direction indicated by the arrow B will be further described. FIG. 13 shows the appearance of the vicinity of the rear end of the fuel tank 13 and the front end of the seat 14. (A) shows the state where the lock guard 50 is provided, and (B) shows the state where the lock guard 50 is not provided for the same parts.
In this portion, as shown in FIG. 13B, a slight gap S is formed between the seat 14 and the seat rail 8, and the upper edge of the vehicle body cover 9 is positioned lower than the upper end of the seat rail 8. Yes, the gap S is not covered.
Therefore, the operation member can be inserted under the seat 14 from the front and obliquely outward from the gap S.
しかし、（Ａ）に示すように、この間隙Ｓの内側にはロックガード５０が設けられ、ロックガード５０により間隙Ｓから奥の空間が塞がれているので、間隙Ｓから操作部材を入れても、ロックガード５０（特に、サイドガード部５２及び斜板部５３ａ）によりそれ以上奥へ操作部材を差しこむことができず、シートキャッチ２３へ操作部材をアクセスさせないようになっている。このため、図１０におけるＢ矢示方向からのいたずらを防止できる。 However, as shown in (A), a lock guard 50 is provided inside the gap S, and the space behind the gap S is closed by the lock guard 50. Therefore, an operation member is inserted from the gap S. However, the lock guard 50 (particularly, the side guard portion 52 and the swash plate portion 53a) does not allow the operation member to be inserted further into the back and prevents the operation member from accessing the seat catch 23. For this reason, the mischief from the B arrow direction in FIG. 10 can be prevented.
図１３の（Ｂ）は、（Ａ）における丸囲み部を拡大して示す。この図に明らかなように、ロックガード５０を設けないと、間隙Ｓからシートキャッチ２３が見え、間隙Ｓから操作部材を入れてシートキャッチ２３を操作することが可能になり、図１０におけるＢ矢示方向からのいたずらを防止できない。 FIG. 13B is an enlarged view of the circled portion in FIG. As is apparent from this figure, if the lock guard 50 is not provided, the seat catch 23 can be seen from the gap S, and the operation member can be inserted from the gap S to operate the seat catch 23. The mischief from the indicated direction cannot be prevented.
図１１は、シートキャッチ２３でロックされるフック６０を模式的に示す断面である。フック６０は略Ｕ字状をなし、シート１４の底板１４ａに上端を取付けられ、ここから下方へ突出している。シート１４の開閉に伴って上下し、下部６０ａがロックプレート２４の頂壁２４ａに形成されている前後方向に長いスリット穴２４ｄからロックプレート２４内部へ出入する。シート１４を閉じたとき、フック６０の下部６０ａに対して、シートキャッチ２３のスライダ６１が下部６０ａの上方に交差するようにスライド移動すると、フック６０は上方（ａ矢示）へ移動できず、シート１４は閉じられたロック状態になる。 FIG. 11 is a cross-sectional view schematically showing the hook 60 that is locked by the seat catch 23. The hook 60 is substantially U-shaped, has an upper end attached to the bottom plate 14a of the seat 14, and protrudes downward therefrom. As the seat 14 opens and closes, the lower portion 60a enters and exits into the lock plate 24 from a slit hole 24d that is formed in the top wall 24a of the lock plate 24 in the front-rear direction. When the seat 14 is closed, when the slider 61 of the seat catch 23 slides and moves above the lower portion 60a with respect to the lower portion 60a of the hook 60, the hook 60 cannot move upward (indicated by an arrow a). The seat 14 is closed and locked.
図１２は、図１０の１２－１２線に沿うシートキャッチ２３の断面図であり、シートキャッチ２３のロック機構を示す。シートキャッチ本体６４の左端部にフック６０の下部６０ａが出入りする上方に開放されたＵ字状溝部６３が形成される。シートキャッチ２３にはスライダ６１を軸方向へ進退させるシリンダ部６２が設けられ、これにスライダ６１がｂ又はｃ矢示方向（左右方向）へ進退する。 12 is a cross-sectional view of the seat catch 23 taken along the line 12-12 in FIG. 10, and shows a locking mechanism of the seat catch 23. As shown in FIG. A U-shaped groove 63 opened upward is formed at the left end of the seat catch body 64 so that the lower portion 60a of the hook 60 enters and exits. The seat catch 23 is provided with a cylinder portion 62 for moving the slider 61 forward and backward in the axial direction, and the slider 61 moves forward and backward in the direction indicated by the arrow b or c (left and right direction).
スライダ６１は、ワイヤーケーブルやソレノイド等の適宜方法で進退する。フック６０の下部６０ａがＵ字状溝部６３内へ入り込んだ状態で、スライダ６１がｂ矢示方向へ突出すると、下部６０ａの上に重なり、下部６０ａがＵ字状溝部６３から脱出できないロック状態になる。 The slider 61 is advanced and retracted by an appropriate method such as a wire cable or a solenoid. When the slider 61 protrudes in the direction indicated by the arrow b while the lower portion 60a of the hook 60 enters the U-shaped groove portion 63, the hook 61 overlaps with the lower portion 60a, and the lower portion 60a is locked so that it cannot escape from the U-shaped groove portion 63. Become.
逆に、スライダ６１がｃ矢示方向へ後退すると、Ｕ字状溝部６３内の下部６０ａを解放し、Ｕ字状溝部６３から上方のａ矢示方向へ脱出するアンロック状態となる。
なお、図中の６５はリターンスプリングであり、スライダ６１に形成された凹部６６内に収容され、一端が凹部６６の端壁６６ａ、他端がシリンダ部６２から突出する凸部６７にそれぞれ当接され、スライダ６１をロック方向（ｂ矢示方向）へ付勢している。 On the contrary, when the slider 61 moves backward in the direction indicated by the arrow c, the lower portion 60a in the U-shaped groove 63 is released, and the unlocked state in which the slider 61 escapes from the U-shaped groove 63 in the upward arrow a direction.
In the figure, reference numeral 65 denotes a return spring which is housed in a recess 66 formed in the slider 61 and has one end abutting against an end wall 66a of the recess 66 and the other end contacting a projection 67 protruding from the cylinder portion 62. Thus, the slider 61 is urged in the locking direction (the direction indicated by the arrow b).
次に、本実施の形態における作用を説明する。
まず、燃料タンク１３を車体フレーム１へ支持させる。このとき、シート１４は未装着であり、かつロックプレート２４及びシートキャッチ２３並びにロックガード５０も取付けられていない状態である。この状態で図１におけるメインフレーム６の上に燃料タンク１３を乗せ、後方から前方へ押し込むことにより、図示しない係合構造にて前端をメインフレーム６へ係止する。続いて、図２に示すように、タンクステー１５の後端部であるフレーム側固定部１５ａをナット１８の上に乗せ、取付穴３６をナット１８に合わせてボルト１６にて締結する。これにより、燃料タンク１３はボルト１６の１カ所で締結するだけで車体フレーム１（クロスプレート１７）へ迅速に固定できる。その後、シートキャッチ２３が一体化されたロックプレート２４及びロックガード５０を車体フレームへ取付け、シート１４も取付ける。 Next, the operation in the present embodiment will be described.
First, the fuel tank 13 is supported on the vehicle body frame 1. At this time, the seat 14 is not attached, and the lock plate 24, the seat catch 23, and the lock guard 50 are not attached. In this state, the fuel tank 13 is placed on the main frame 6 in FIG. 1 and pushed forward from the rear, whereby the front end is locked to the main frame 6 with an engagement structure (not shown). Subsequently, as shown in FIG. 2, the frame side fixing portion 15 a that is the rear end portion of the tank stay 15 is placed on the nut 18, and the mounting hole 36 is aligned with the nut 18 and fastened with the bolt 16. As a result, the fuel tank 13 can be quickly fixed to the vehicle body frame 1 (cross plate 17) only by fastening at one location of the bolt 16. Thereafter, the lock plate 24 and the lock guard 50 in which the seat catch 23 is integrated are attached to the vehicle body frame, and the seat 14 is also attached.
この燃料タンク１３の車体フレーム１に対する支持状態において、燃料タンク１３の重量はタンクステー１５へ加わる。しかし、タンクステー１５は、第１ステー２０と第２ステー２１の２部材からなり、第１ステー２０は外板１３ａへ取付けられ、第２ステー２１は底板１３ｂへ取付けられている。したがって、燃料タンク１３からタンクステー１５に加わる重量は、第１ステー２０と第２ステー２１へ分散して加わることになり、タンクステー１５と燃料タンク１３との取付部（溶接部）に対する応力の集中が緩和される。 In a state where the fuel tank 13 is supported with respect to the vehicle body frame 1, the weight of the fuel tank 13 is applied to the tank stay 15. However, the tank stay 15 includes two members, a first stay 20 and a second stay 21. The first stay 20 is attached to the outer plate 13a, and the second stay 21 is attached to the bottom plate 13b. Therefore, the weight applied from the fuel tank 13 to the tank stay 15 is distributed and added to the first stay 20 and the second stay 21, and stress applied to the attachment portion (welded portion) between the tank stay 15 and the fuel tank 13 is increased. Concentration is eased.
その結果、従来例のように底板のみへタンクステーを取付ける場合のような大きな応力集中を回避でき、この応力集中に打ち勝つことができるように燃料タンクとタンクステーの取付部における剛性を著しく高くするとともに重量の増加を伴う特別な補強構造を不要にできるので、燃料タンクとタンクステーの取付部における必要な強度を維持しつつも、この部分の構造が簡単になるとともに、燃料タンク１３とタンクステー１５からなる燃料タンクの固定部構造を軽量化できる。
特に、タンクステーに利用できるフランジを有さない、フランジレスタイプの燃料タンクにおいて有利なタンクステーの構造となる。 As a result, it is possible to avoid a large stress concentration as in the case of attaching the tank stay only to the bottom plate as in the conventional example, and to significantly increase the rigidity of the attachment portion of the fuel tank and the tank stay so as to overcome this stress concentration. In addition, since a special reinforcing structure accompanied by an increase in weight can be eliminated, the structure of this portion is simplified while maintaining the necessary strength in the mounting portion of the fuel tank and the tank stay, and the fuel tank 13 and the tank stay are also maintained. The fuel tank fixing part structure consisting of 15 can be reduced in weight.
In particular, the tank stay structure is advantageous in a flangeless type fuel tank that does not have a flange that can be used for the tank stay.
また、タンクステー１５は、板状の第１ステー２０と第２ステー２１の２部材からなり、前側は分離して外板１３ａと底板１３ｂへ取付けられるとともに、後ろ側は上下合わせに一体化されフレーム側固定部１５ａをなし、ここでボルト１６により車体フレーム１のクロスプレート１７へ固定される。
このため、タンクステー１５が２部材からなるにもかかわらず、１本のボルト１６による１点の固定だけで、燃料タンク１３の後部における外板１３ａの背面と底板１３ｂの底面からなる２面を保持することができる。 The tank stay 15 is composed of two members, a plate-like first stay 20 and second stay 21, and the front side is separated and attached to the outer plate 13a and the bottom plate 13b, and the rear side is integrated vertically. The frame side fixing portion 15a is formed, and is fixed to the cross plate 17 of the vehicle body frame 1 by bolts 16 here.
For this reason, even though the tank stay 15 is composed of two members, only one point is fixed by one bolt 16, so that the two surfaces consisting of the rear surface of the outer plate 13 a and the bottom surface of the bottom plate 13 b at the rear portion of the fuel tank 13 can be obtained. Can be held.
さらに、第１ステー２０の前部３０は補強プレート３２を介して外板側取付部２５へ溶接により取付けられ、第２ステー２１の前部４０は、補強プレート４２を介して底板側取付部２６へ溶接により取付けられている。
このため、燃料タンク１３の外板１３ａ及び底板１３ｂにおける第１ステー２０及び第２ステー２１に対する溶接部の強度を高めることができる。 Further, the front portion 30 of the first stay 20 is attached to the outer plate side attaching portion 25 via the reinforcing plate 32 by welding, and the front portion 40 of the second stay 21 is attached to the bottom plate side attaching portion 26 via the reinforcing plate 42. It is attached by welding.
For this reason, the strength of the welded portion of the outer plate 13a and the bottom plate 13b of the fuel tank 13 with respect to the first stay 20 and the second stay 21 can be increased.
また、第１ステー２０の前部３０に窓穴３５を設け、この窓穴３５を通して、燃料タンク１３の後部を視認できるようにしたので、燃料タンク１３の後部を部分的に覆うタンクステー１５（第１ステー２０）を設けても、燃料タンクの完成品検査工程において、燃料タンク後部の視認性確保でき、検査が容易になる。特に、フランジレスタンクにおいて、燃料タンク後部の外板と底板との溶接部１３ｅを視認できるので、この部分における溶接部検査の精度を高め、フランジレスタンクの品質を高くすることができる。しかも、比較的大きな窓穴３５を前部３０に設けて肉抜きすることにより、タンクステー１５を軽量化できる。 Further, since a window hole 35 is provided in the front portion 30 of the first stay 20 so that the rear portion of the fuel tank 13 can be visually recognized through the window hole 35, the tank stay 15 (partially covering the rear portion of the fuel tank 13 ( Even if the first stay 20) is provided, the visibility of the rear portion of the fuel tank can be secured in the finished product inspection process of the fuel tank, and the inspection becomes easy. In particular, in the flangeless tank, the welded portion 13e between the outer plate and the bottom plate at the rear portion of the fuel tank can be visually recognized, so that the accuracy of the welded portion inspection at this portion can be improved and the quality of the flangeless tank can be improved. In addition, the tank stay 15 can be reduced in weight by providing a relatively large window hole 35 in the front portion 30 and removing the meat.
そのうえ、窓穴３５を覆うロックガード５０を設け、このロックガード５０により、燃料タンク１３の後方かつシート１４の下方に配置されたシートキャッチ２３に対する外部からの接触を防ぐようした。このため、外部から窓穴３５に操作部材を入れても、ロックガード５０によりシートキャッチ２３まで入れることができないので、窓穴３５を設けても、シートキャッチ２３に対するいたずらを防止でき、さらには車両の盗難の防止に役立つことができる。 In addition, a lock guard 50 covering the window hole 35 is provided, and the lock guard 50 prevents external contact with the seat catch 23 disposed behind the fuel tank 13 and below the seat 14. For this reason, even if an operation member is inserted into the window hole 35 from the outside, even the seat catch 23 cannot be inserted by the lock guard 50. Therefore, even if the window hole 35 is provided, mischief with respect to the seat catch 23 can be prevented. Can help prevent theft.
なお、上記実施の形態の説明は一実施例を示すものである。本願発明は上記に限定されるものではなく、発明の原理内において種々に変形や応用が可能である。
例えば、対象となる燃料タンクは、フランジを有するものであっても良い。
また、ロックガード５０も図示したものに限定されず、シートキャッチ２３に対する外部からの接触を防ぐことができれば、どのような形状や構造でもよい。
さらに、タンクステー１５の燃料タンク１３に対する取付けは、溶接に限らず他の公知結合構造が種々可能である。
Note that the description of the above embodiment shows an example. The present invention is not limited to the above, and various modifications and applications are possible within the principle of the invention.
For example, the target fuel tank may have a flange.
Further, the lock guard 50 is not limited to the illustrated one, and may have any shape or structure as long as it can prevent external contact with the seat catch 23.
Furthermore, the attachment of the tank stay 15 to the fuel tank 13 is not limited to welding, and various other known coupling structures are possible.
本願発明における燃料タンクの固定部構造は、タンクステーの燃料タンクに対する取付部における応力集中を緩和できるので、タンクステーを用いて燃料タンクを車体フレームへ固定する車両において有用である。
The fuel tank fixing portion structure in the present invention is useful in a vehicle that uses a tank stay to fix the fuel tank to the vehicle body frame because stress concentration in the attachment portion of the tank stay to the fuel tank can be reduced.
１３：燃料タンク、１４：シート、１５：タンクステー、１５ａ：フレーム側固定部、１６：ボルト、２０：第１ステー、２１：第２ステー、２３：シートキャッチ、３０：前部、３１：後部、３５：窓穴、４０：前部、４１：後部、５０：ロックガード、６０：フック 13: Fuel tank, 14: Seat, 15: Tank stay, 15a: Frame side fixing part, 16: Bolt, 20: First stay, 21: Second stay, 23: Seat catch, 30: Front part, 31: Rear part 35: Window hole, 40: Front part, 41: Rear part, 50: Lock guard, 60: Hook

Claims (5)

  1. 外板（１３ａ）と底板（１３ｂ）を上下合わせにして形成される燃料タンク（１３）と、
    その後部から後方へ延出するタンクステー（１５）とを備え、このタンクステーの後端部にて車体フレームへ固定される燃料タンクの固定部構造において、
    前記外板（１３ａ）の後部から後方へ延出する第１ステー（２０）と、
    前記底板（１３ｂ）の後部から後方へ延出する第２ステー（２１）と、
    を備え、
    これら第１ステー（２０）と第２ステー（２１）の各後端部は前記車体フレームへ固定されるとともに、
    前記第１ステー（２０）と第２ステー（２１）の各前端部側は上下に分離し、
    前記第１ステー（２０）の前端部は前記燃料タンク（１３）の後部における前記外板（１３ａ）の背面に取付けられ、
    前記第２ステー（２１）前端部は前記燃料タンク（１３）の後部における前記底板（１３ｂ）の底面に取付けられていることを特徴とする燃料タンクの固定部構造。     A fuel tank (13) formed by aligning the outer plate (13a) and the bottom plate (13b) vertically;
    A tank stay (15) extending rearward from the rear portion, and a fuel tank fixing portion structure fixed to the vehicle body frame at the rear end portion of the tank stay;
    A first stay (20) extending rearward from the rear portion of the outer plate (13a);
    A second stay (21) extending rearward from the rear portion of the bottom plate (13b);
    With
    The rear ends of the first stay (20) and the second stay (21) are fixed to the body frame,
    The front end sides of the first stay (20) and the second stay (21) are separated vertically.
    The front end of the first stay (20) is attached to the back of the outer plate (13a) at the rear of the fuel tank (13),
    A fuel tank fixing portion structure, wherein the front end of the second stay (21) is attached to the bottom surface of the bottom plate (13b) at the rear of the fuel tank (13).
  2. 前記第１ステー（２０）と第２ステー（２１）はそれぞれ板状をなして後方に延び、各後端部は重ね合わされて一体化されたフレーム側固定部（１５ａ）をなし、ここで前記車体フレームへ固定されることを特徴とする請求項１に記載した燃料タンクの固定部構造。 Each of the first stay (20) and the second stay (21) has a plate shape and extends rearward, and each rear end portion is overlapped and integrated to form an integrated frame side fixing portion (15a). The fuel tank fixing portion structure according to claim 1, wherein the fuel tank fixing portion structure is fixed to a vehicle body frame.
  3. 前記第１ステー（２０）の前端部は、補強部材（３２）を介して前記外板（１３ａ）の背面に溶接され、
    前記第２ステー（２０）の前端部は、補強部材（４２）を介して前記底板（１３ｂ）の底面に溶接されていることを特徴とする請求項１又は２に記載した燃料タンクの固定部構造。     The front end of the first stay (20) is welded to the back surface of the outer plate (13a) via a reinforcing member (32).
    The front end portion of the second stay (20) is welded to the bottom surface of the bottom plate (13b) via a reinforcing member (42), and the fixed portion of the fuel tank according to claim 1 or 2, Construction.
  4. 前記後面取付部に取付けられた板状のステーは、窓部が形成されていることを特徴とする
    前記第１ステー（２０）には窓穴（３５）が設けられ、この窓穴（３５）を通して前記燃料タンク（１３）の後部が視認可能であることを特徴とする請求項１～３のいずれか１項に記載した燃料タンクの固定部構造。     The plate-like stay attached to the rear attachment portion has a window portion, and the first stay (20) is provided with a window hole (35), and the window hole (35). The fuel tank fixing part structure according to any one of claims 1 to 3, wherein a rear part of the fuel tank (13) is visible through the fuel tank (13).
  5. 前記燃料タンク（１３）の後方にシートキャッチ（２３）が配置され、このシートキャッチ（２３）に対する外部からの接触を規制するための保護部材（５０）が配置されるとともに、
    この保護部材（５０）が前記窓穴（３５）を覆うように配置されることを特徴とする請求項４に記載した燃料タンクの固定部構造。     A seat catch (23) is disposed behind the fuel tank (13), and a protective member (50) for restricting external contact with the seat catch (23) is disposed.
    The fuel tank fixing portion structure according to claim 4, wherein the protective member (50) is disposed so as to cover the window hole (35).
PCT/JP2017/013481 2017-03-30 2017-03-30 Fuel tank fixing part structure WO2018179299A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BR112019019314-6A BR112019019314B1 (en) 2017-03-30 2017-03-30 FIXING STRUCTURE FOR A FUEL TANK
DE112017007349.9T DE112017007349T5 (en) 2017-03-30 2017-03-30 Fuel tank mounting substructure
JP2019508075A JP6709879B2 (en) 2017-03-30 2017-03-30 Fixed structure of fuel tank
PCT/JP2017/013481 WO2018179299A1 (en) 2017-03-30 2017-03-30 Fuel tank fixing part structure

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3524499A1 (en) * 2018-02-13 2019-08-14 Honda Motor Co., Ltd. Stay of a tank of a saddle riding vehicle
WO2020083558A1 (en) * 2018-10-25 2020-04-30 Bayerische Motoren Werke Aktiengesellschaft Fuel tank fastening assembly for a motorcycle, and motorcycle assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5277160U (en) * 1975-12-05 1977-06-09
JPS52108751U (en) * 1976-02-16 1977-08-18

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
JPS5277160U (en) * 1975-12-05 1977-06-09
JPS52108751U (en) * 1976-02-16 1977-08-18

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3524499A1 (en) * 2018-02-13 2019-08-14 Honda Motor Co., Ltd. Stay of a tank of a saddle riding vehicle
US11214327B2 (en) 2018-02-13 2022-01-04 Honda Motor Co., Ltd. Saddle riding vehicle
WO2020083558A1 (en) * 2018-10-25 2020-04-30 Bayerische Motoren Werke Aktiengesellschaft Fuel tank fastening assembly for a motorcycle, and motorcycle assembly

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BR112019019314B1 (en) 2023-09-26
JPWO2018179299A1 (en) 2020-01-16
DE112017007349T5 (en) 2019-12-12
BR112019019314A2 (en) 2020-04-14

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