CN105599836A - Fuel tank and manufacturing method thereof - Google Patents
Fuel tank and manufacturing method thereof Download PDFInfo
- Publication number
- CN105599836A CN105599836A CN201510788978.3A CN201510788978A CN105599836A CN 105599836 A CN105599836 A CN 105599836A CN 201510788978 A CN201510788978 A CN 201510788978A CN 105599836 A CN105599836 A CN 105599836A
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- China
- Prior art keywords
- fuel
- tank
- fuel tank
- filling
- neck
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention provides a fuel tank made of resin materials. The fuel tank comprises a fuel tank body, a lifting part, a fuel filling neck, an inlet filling part, and a fuel gun nozzle locking part, wherein the fuel tank body includes a component on the tank and a component below the tank; the components are molded through injection of resin materials and are hot welded; the lifting part lifts in the cylindrical shape from the component on the tank; the fuel filling neck is arranged on the liftign part which lifts from the component on the tank; the inlet filling part extends to the fuel tank from the cylindrical shape part of the fuel filling neck; and the fuel gun nozzle locking part is integrated with the inlet filling part, and is arranged below the internal cylinder.
Description
Technical field
The present invention relates to a kind of fuel tank, this fuel tank is for dilly such as motorcycle, and especially, this car is provided with useImproved oil in resin fuel tank is filled neck structure, and relates to a kind of method of manufacturing this fuel tank.
Background technology
Some compact cars are such as motorcycle, motor tricycle and all-terrain vehicle (ATV) are provided with resin fuel tank.Traditional resin fuel tank is designed to allow fill neck (oil by the tubular articles that is called entrance filling part is inserted to oilFilling access) the full oil level of visually inspection. Entrance filling part is provided with passage, and this passage is for being heated swollen when fuelWhen swollen, prevent from extinguishing from fuel cap such as the fuel of gasoline. In addition, entrance filling part can not standardization, and this is because fuelBe full of position and passage position and change to another fuel tank from a fuel tank.
Further, in the situation that entrance filling part is metal inlet, shaft-like fuel gun mouth stopping part is as separatelyThereby parts soldered and be fixed to entrance lower end keep fuel gun.
Patent documentation 1 (the flat patent No.2009-101748 that opens of Japan) discloses a kind of for having traditional oil filling neckThe tank technology of the resin fuel tank of structure.
For resin fuel tank, neck filled by oil and index board part is manufactured in advance integratedly by injection mo(u)lding, and work asWhen whole fuel tank is molded by blow molding, the oil of manufacturing is in advance filled neck and index board part is set as in metal dieThereby and be blow molded moulding insert fuel tank. Then,, after blow molding, the bottom of index board is divided by the die-cut quilt that waitsManufacture resin fuel tank thereby remove.
In the time utilizing fuel gun to supply fuel to fuel tank, the nozzle segment of fuel gun is filled neck via oil and is inserted resinIn fuel tank, and feed fuels is such as gasoline. If the nozzle segment of fuel gun touches inner pot parts or element, such asAt petrolift, fuel meter or the oil filter of the inside of fuel tank, inner pot parts may damage and be broken. Therefore, insideTank component is positioned at position that fuel gun do not arrive to avoid contact.
For the disclosed resin fuel tank of patent documentation 1, index board is formed in tank below that oil fills neck alsoAnd the bottom that open pore is formed on index board is divided. But this patent documentation 1 is not mentioned open pore in index boardShape and size. In addition, also do not show or be proposed to be used in the structure that keeps fuel gun at the end portion of index board, thereforeResin fuel tank does not provide the ability that stably keeps fuel gun.
Thereby in the time that fuel gun insertion is filled neck through the oil of fuel tank, fuel gun may be stably supported on nozzleEnd side, or fuel gun mouth may, through the open pore insertion in index board, make to be difficult to stably to keep fuel gun. AddFuel handling should be by remaining that fuel gun carries out, and be difficult to carry out refueling operation without hand keeps fuel gun.
Further, for resin fuel tank, although fuel tank main body manufactured by blow molding, oil fill neck andIndex board part need to be manufactured in advance integratedly by injection mo(u)lding. , in the time that fuel tank main body is molded by blow molding, pre-The oil of first manufacturing is separately filled neck and index board part is set in mould and by the combustion of inserted mode system and blow moldingBatch can body junction integrator.
For resin fuel tank, must be by the die-cut lower end of removing index board of waiting after the blow molding of fuel tank main bodyPart forms open pore, and this just needs multiple formation steps to manufacture resin fuel tank, thus, has increased processing work stepSuddenly, thus make complexity and cost increase.
Summary of the invention
The present invention considers above-mentioned situation, and its objective is a kind of fuel tank is provided, and this fuel tank is made up also of resin materialAnd there is oil and fill neck structure, and a kind of method of manufacturing this fuel tank is provided, the fuel tank parts that the method is reducingOr in the situation of the quantity of element, during refueling operation, make fuel gun stably be kept, and can hold with low costThe manufacture fuel tank of changing places.
On the one hand, above-mentioned and other object can be according to the present invention by providing a kind of fuel tank to realize, and this fuel tank comprises:
Fuel tank main body, fuel tank main body comprises tank upper member and tank lower member, tank upper member and tank lower member pass through resinous woodMaterial injection mo(u)lding, and fuel tank main body by thermal weld by integrally welded to tank upper member and tank lower member;
Rising part, rising part is tubular from tank upper member and rises;
Fuel is filled neck, and fuel is filled neck and is arranged at the rising part rising from tank upper member and has cylindrical portion;
Entrance filling part, entrance filling part is arranged to extend to fuel tank from the cylindrical portion of fuel filling neck; With
Fuel gun mouth stopping part, fuel gun mouth stopping part and entrance filling part are set to one, are positioned at entrance filling partThe below of the inner cylinder portion of dividing.
Of the present invention above-mentioned aspect, below more excellent embodiment may be used.
Can be preferred, entrance filling part has air throttle part, and air throttle part is formed as below inner cylinder portion and downward courtInside all lateral bends, and the below of fuel gun mouth stopping part and air throttle part is set to one.
Can be preferred, fuel gun mouth stopping part comprises multiple pillars and support ring, and pillar is connected to the air throttle part of inner cylinder,Support ring is for linking together pillar, and the hole that the first oilhole is formed by the interior circumferential portion of support ring forms, the second oilHole is formed between pillar and in the bottom of air throttle part to be divided between support ring.
Can be preferred, in fuel gun mouth stopping part, the aperture of the first oilhole and the second oilhole is only set as being less than fuel gun mouthThe external diameter of moving part.
Can be preferred, in fuel gun mouth stopping part, the cross sectional shape of support ring is: in the side of the axis perpendicular to support ringUpwards, ring upper surface is formed as the Curved top surface contacting with side surface, and the inner side of Curved top surface is formed as courtTo the downward-sloping curved surface of the first oilhole.
Can be preferred, in the lower part of the inner cylinder portion of entrance filling part, the lower end position of air throttle part is as fuel contents gaugeFull line.
Can be preferred, the nozzle end part of the fuel gun in the lower end position of the air throttle part of entrance filling part and use connectsTouch and close, and fuel gun is kept by the lower end position of air throttle part and a mouth shape portion for fuel filling neck.
Can be preferred, fuel is filled neck and be provided with passage on the route of the inner cylinder portion along entrance filling part.
In another aspect of this invention, provide a kind of method of manufacturing fuel tank, fuel tank is made and is arranged by resin materialHave fuel to fill neck, wherein, rising part is formed as rising from the upper surface of fuel tank, and method comprises step: by treeFat material injection mo(u)lding tank upper member and tank lower member to be to form fuel tank main body, and by by the tank upper member of injection mo(u)ldingWith the matching surface thermal weld of tank lower member and form the fuel tank main body of box-shaped, fuel tank main body is provided with riser portionsPoint; During injection mo(u)lding at tank upper member, in fuel tank, fuel fill neck below form with fuel tank and beThe entrance filling part of one.
Aspect this, may be preferably, the method further comprises step: during the injection mo(u)lding of tank upper member, at inner coreIn the lower part of portion, below air throttle part with entrance filling part molded fuel gun mouth stopping part integratedly; With withFuel gun mouth stopping part is molded multiple pillar and support ring integratedly, and pillar is passed through from air throttle part downwards with insideBending extension and support ring are fixed to the end of pillar.
In another aspect of this invention, also provide a kind of fuel tank of being made up of resin material, fuel tank has resin materialThe fuel tank main body forming by blow molding, fuel tank main body is formed with the rising part forming as one with it, wherein,Rising part is tubular and is arranged in fuel tank main body, and fuel is filled neck and is arranged in rising part, and ladderPart is that the cylindrical of filling neck by fabricate fuel forms; And wherein, be injection molded into by other resin materialType forms entrance filling part, and this entrance filling part is formed as inserting fuel and fills the stepped portion of neck, and entersMouth filling part has fuel gun mouth stopping part, and fuel gun mouth stopping part is arranged on the below of inner cylinder portion and is formed as with itOne, inner cylinder portion is extended downwards from the tank upper surface of fuel tank.
According to the present invention, because the fuel tank of the present embodiment is made up of resin material and the fuel filling neck subordinate of fuel tankSide is provided with entrance filling part, and entrance filling part has fuel gun mouth stopping part, this fuel gun mouth stopping partBe provided with integratedly the lower part of the inner cylinder portion of entrance filling part, so during refuelling, (fuel supplies refueling operationGive) can through completing, the fuel gun mouth of fuel filling neck needn't worry to contact fuel gun mouth by stably keeping insertingAnd damage inner pot parts, such as petrolift or fuel meter.
In addition because the tank upper member of resin fuel tank and tank lower member form by injection mo(u)lding is molded, and on tank structureDuring the injection mo(u)lding of part, entrance filling part forms, and fuel gun mouth stopping part and entrance filling part underPart forms, form the quantity of step can minimizing and the quantity of member or parts also can reduce, make costReduce.
To from following description, make characteristic of the present invention and further performance and technical characterictic more apparent with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 shows the left view of dilly such as scooter-type vehicle;
Fig. 2 is the plane that shows the dilly of the state of removing seat;
Fig. 3 is the structure diagram of car body frame structure that shows dilly, wherein resin according to an embodiment of the inventionFuel tank is installed on this dilly;
Fig. 4 shows according to the side view of the resin fuel tank of the first embodiment of the present invention;
Fig. 5 is the plane that shows the resin fuel tank in Fig. 4;
Fig. 6 is the plane that shows the oil filling neck of resin fuel tank;
Fig. 7 is the longitdinal cross-section diagram of filling neck along the fuel of VII-VII line in Fig. 6;
Fig. 8 is the longitdinal cross-section diagram of filling neck along the fuel of VIII-VIII line in Fig. 6;
Fig. 9 is the local amplification sectional view that shows the IX part of Fig. 8;
Figure 10 is the frog view of seeing fuel filling neck from the inside of fuel tank;
Figure 11 shows that fuel gun enters the stereogram (birds-eye view) of the fuel injection state of resin fuel tank;
Figure 12 is the figure being presented at during refuelling from the fuel flow of fuel gun; And
Figure 13 is the side view that shows resin fuel tank according to a second embodiment of the present invention.
Detailed description of the invention
Below with reference to accompanying drawing, embodiments of the invention are described.
In addition, note, the terms such as noun "up" and "down", " right side " and " left side ", " front " and " afterwards " represent the figure with reference to accompanying drawingThe direction of solution state or the driver driving condition on vehicle.
Fig. 1 is the left view of display application dilly of the present invention such as the first embodiment of scooter-type vehicle, and Fig. 2 is aobviousShow the plane of the pedal-type dilly of the state of removing seat, and Fig. 3 shows to be equipped with according to reality of the present inventionExecute the stereogram of the car body frame structure of the pedal-type dilly of routine resin fuel tank.
As shown in Figures 1 to 3, there is body shell 11 as the scooter-type vehicle 10 of dilly. Body shell 11 is mainComprise front pipe 12, underframe 13 and a pair of left and right afterframe 15, wherein, front pipe 12 is located at foremost portion, underframe13 manage 12 lower rear section downwards in the past and extend back and then almost flatly extend backward by bending midway, Er QieThe rear end part of underframe 13, the horizontal frame 14 that afterframe 15 extends via broad ways upwards and extend back.
Can stores such as the storage box 16 of the helmet is arranged on the top of the bridge joint framework between afterframe 15. Also serve asThe driver's of the lid of storage box 16 seat 17 is arranged in storage box 16 and opens and closes, and resin fuel tank18 be positioned at storage box 16 after. Resin fuel tank 18 is placed and remains on backboard 19, and this backboard is installedOn a pair of left and right afterframe 15.
Unit oscillating engine 20 is positioned in the middle of the approximate bottom of afterframe 15. A pair of left and right engine hangs protuberance (engineSuspensionboss) 21 on the width of car, be arranged on abreast on the front downside of unit oscillating engine 20, and drawHold up and hang protuberance 21 by being arranged on a pair of left and right engine suspension holdfast 22 in the middle of the bottom of body shell 11 by swingableGround supports.
Unit oscillating engine 20 comprises the engine body 24 and the gearbox 25 that arrange integratedly, wherein, and in the width side of vehicleUpwards, gearbox 25 is from a side of engine body 24, and left side extends back along the travel direction of vehicle. Gearbox 25Also serve as swing arm and be flexibly supported on body shell 11 by rear buffer cell 26. The rear end of gearbox 25 aroundAxis supports the trailing wheel 27 as drive.
In addition, front pipe 12 is equipped with front fork 29 and handle 30, and wherein, front fork 29 pivotally supports as turning to control wheelFront-wheel 28. Thereby handle 30 is handled front-wheel 28, front-wheel 28 left and right pivots are rotated.
On the other hand, body shell 11 is covered by body gate 32, and this body gate has been determined the outward appearance of vehicle. Body gate 32Combination by multiple cap members forms. Particularly, cap member comprises foreleg protective cover 33, back leg protective cover 34, lower leg guarantorGuard shield 35 and afterframe lid 36.
The first embodiment:
Fig. 4 is the side view of demonstration for the first embodiment of the resin fuel tank 18 of scooter-type vehicle 10, and Fig. 5 is aobviousShow the plane of resin fuel tank 18.
Resin fuel tank 18 is made up of the injection mo(u)lding article of resin material. Fuel tank 18 is manufactured into by by universal treeFat material is such as polyethylene or polyamide molding tank upper member 40 and tank lower member 41 and pass through to utilize the heating plate not showingThe tank upper member 40 of thermal weld injection mo(u)lding and the matching surface 42 of tank lower member 41, and be made for a body deformability case.
On tank deck surface, be the tank upper member 40 1 of cylindrical portion 43 with the fuel tank 18 of tubular rising from outstanding shoulderBody ground arranges. Fuel filling neck (being that fuel is supplied with port) 45 is arranged on from the tank deck surface 44 of fuel tank 18 and is tubularIn the cylindrical portion 43 rising, be formed near cylindrical portion 43 for the installing hole 46 of fuel sensor etc.In tank upper member 40. Allow fuel meter such as the attached multiple insertion nuts of fuel sensor 47 by inserted mode system technique aroundInstalling hole 46 forms.
Further, the fuel of fuel tank 18 is filled neck 45 and is had external screw thread 48, and this external screw thread is formed on cylindrical portionIn the outer circumferential sides of 43 mouth shape portion, and the internal thread of fuel cap 49 as shown in Figures 2 and 3 via be threaded withExternal screw thread 48 engages and is assemblied on external screw thread 48.
The cylindrical portion 43 that fuel is filled neck 45 extends to fuel tank 18 by the tank deck surface 44 of running through fuel tank 18In. As shown in Figure 7, fuel is filled neck 45 and is had entrance filling part 50, and this entrance filling part is arranged on fuel tankThe below of the cylindrical portion 43 on 18 tank deck surface 44. In entrance filling part 50, the inner cylinder portion 50a of tubular doesFor entrance filling part extends downwards integratedly from cylindrical portion 43. The lower part one of air throttle part 50b and inner cylinder portion 50aBody ground forms, and is then combined into one with the cylindrical portion 43 of fuel filling neck 45. 50b is towards inner circle for air throttle partWeek is bending. The physics of entrance filling part 50 and mechanical strength are strengthened by air throttle part 50b.
As shown in Fig. 6 to 10, in entrance filling part 50, fuel gun mouth stopping part 53 with tie with cylindrical portion 43The lower part of the air throttle part 50b of incorporated inner cylinder portion 50a arranges integratedly. Fuel gun mouth stopping part 53 comprisesThe multiple pillars 54 and the support ring 55 that arrange integratedly, wherein, pillar 54 from air throttle part 50b downwards and extend internallyAnd bending, and support ring 55 links together pillar 54. On the other hand, pillar 54 from support ring 55 upward and outwardExtend and, radially the end of curved struts 54 and with the end side of pillar 54 to, this pillar 54 with fill at entranceAir throttle part 50b in the lower part of part 50 connects integratedly. As mentioned above, when fuel gun is for filling fuelWhile entering fuel tank, fuel gun mouth stopping part 53 is as the stopping part of nozzle segment.
In the support ring 55 of fuel gun mouth stopping part 53, as the first oilhole 56 of center oilhole, and as side oilholeThe hole opening of the second oilhole 57 many between support ring 55 and air throttle part 50b on the excircle of support ring 55For example, between individual (four) pillar 54 opening.
In the support ring 55 of fuel gun mouth stopping part 53, the first oilhole 56 has the spray nozzle part that does not allow fuel gun 60Divide the diameter of 61 processes. More specifically, the aperture of the first oilhole 56 of support ring 55 is set to be equal to or less than ISOThe nozzle od (21.3 millimeters) of the fuel gun 60 that (International Organization for standardization) 9158:1988 standard specifies.
As shown in Figure 9, the cross sectional shape of the support ring 55 of fuel gun mouth stopping part 53 is formed as perpendicular to support ring 55The direction of axis on closed section shape. In the cross sectional shape of support ring 55, ring upper surface is formed as and side surfaceBending (R shape) top of the curve shape of contact (on) surperficial 55a. The Curved top surface 55a's of shape protruding upwardInner surface is formed as by bending downward-sloping towards the first oilhole 56 and that bending top surface 55a is connected smoothly and continuouslySurface.
As shown in figure 10, fuel filling neck 45 is configured to: entrance filling part 50 is arranged on the cylinder in fuel tank 18The below of shape part 43, air throttle part 50b is formed on the below of the inner cylinder portion 50a of entrance filling part 50, and combustionSpray gun mouth stopping part 53 is arranged on the below of air throttle part 50b. Fuel gun mouth stopping part 53 is configured to: asThe aperture of the first oilhole 56 of support ring 55 center oilhole is less than the nozzle od of fuel gun 60, thereby prevents reliablyThe nozzle segment 61 of fuel gun 60 passes through.
In the time supplying fuel in fuel tank 18, fuel gun 60 inserts as shown in FIG. 11 and 12 through fuel and fills neck45, and the nozzle segment 61 of fuel gun 60 stops in the time that it inserts end against fuel gun mouth stopping part 53. At that time,Because the nozzle od of the nozzle segment 61 of fuel gun 60 is greater than of (fuel gun mouth stopping part 53) support ring 55The aperture of one oilhole 56, so the nozzle segment 61 of fuel gun 60 is without the first oilhole 56. Fuel gun mouth portion 61End is booked by contacting (joint) with the lower end position of the air throttle part 50b of entrance filling part 50.
Thereby by inserting a mouth shape portion for end and fuel filling neck 45, (fuel enters the nozzle segment 61 of fuel gun 60Mouthful) supported at two points, and stably keep, therefore just can refuelling without hand.
Further, as shown in Fig. 8,9 and 12, fuel fill neck 45 cylindrical portion 43 below part,Thereby the full line of fuel contents gauge 51 is served as operator (driver) in the lower end of the air throttle part 50b of entrance filling part 50Fill the oil that is easy to visually check tank when neck 45 is looked down via fuel from upside.
As shown in figure 12, in the time that fuel gun 60 inserts in fuel filling neck 45, the nozzle segment 61 of fuel gun 60Insert end by contact with the lower end position of the air throttle part 50b below entrance filling part 50 be booked fromAnd keep, thereby just can refuelling without hand. Because being equipped with in the fuel system of fuel gun 60, fuel gun 60The bonding part of nozzle segment 61 is set to the height identical with the position level of fuel contents gauge part, therefore the height of support ring 55Degree position sets in advance in fuel tank 18, so that fuel is supplied to the flat (oil of full water in the time that auto stop brings into operationAmount meter 51). Entrance filling part 50 has fuel gun mouth stopping part 53, and this fuel gun mouth stopping part is arranged on inner coreThe below of the air throttle part 50b of the 50a of portion and nozzle stopping part 53 have as shown in Figure 9 the support ring 55 of structureCross sectional shape. In addition, for feed fuels is such as gasoline reposefully, fuel gun 60 has the steam vent 63 of minor diameter, asShown in Figure 12, this steam vent is arranged on the below of the nozzle segment 61 of fuel gun 60.
Fuel gun 60 is communicated with the balancing gate pit not showing, this balancing gate pit is formed in rifle and has the steam vent 63 through light wall pipe,During refuelling by via steam vent 63 sucking-off air, balancing gate pit being remained on to atmospheric pressure, thereby steady refuelling.Balancing gate pit prevents that the supply of fuel from being interrupted by the mobile generation negative pressure of feed fuels. Fuel gun 60 is configured to when steam vent 63While covering by fuel splash, be cut off to the supply of the air of balancing gate pit, in balancing gate pit, produce negative pressure, thereby cut off combustionMaterial is supplied with.
In addition, as shown in figure 12, fill in neck structure at the oil of fuel tank 18, support ring 55 has almost streamlinedCross sectional shape and the fuel supplied with from the nozzle segment 61 of fuel gun 60 by be successfully assigned to the first oilhole 56 (inHeart oilhole) and the second oilhole 57 (side oilhole) flow. Support ring 55 is configured with cross sectional shape, this cross sectional shape byBe not easy to produce the drop of fuel in inflow comparison of resistance, such as the drop of gasoline. Be arranged so that steam vent 63 using fuelDuring rifle 60 refuellings, be relatively not easy the structure being covered by fuel droplet.
Further, fill in the cylindrical portion 43 of neck 45 entrance filling part 50 in a circumferential direction at fuelInner cylinder portion (entrance filling part) 50a arrange so that depression mode is local. As shown in Figure 10 and 12, at entrance filling partDivide in 50, passage 64 forms along inner cylinder portion 50a midway. In the time that fuel heat expands, passage 64 prevents combustionMaterial is such as gasoline extinguishes from fuel cap 49. Passage 64 in cylindrical portion 43 can by by do not show be injection molded intoThe matching surface of mould is formed as groove shoulder structure and molded integratedly during injection mo(u)lding.
The manufacture of resin fuel tank:
Resin fuel tank 18 is resin material injection mo(u)lding article such as polyethylene or polyamide. By by thermosolResin material injects the mould of injection mo(u)lding and makes resin material cooling and solidify, and each has the large of complex geometric shapesAmount injection mo(u)lding article can be manufactured by an injection mo(u)lding operation.
In the time manufacturing resin fuel tank 18, first, tank upper member 40 and tank lower member 41 are respectively by utilizing as Fig. 4Injection molding process manufacture with injection forming mold shown in 5.
For tank upper member 40, there is an injection mo(u)lding that is placed in advance multiple insertion nuts 47 wherein by utilizationMould, the tank upper member 40 of complex geometric shapes can be molded integratedly by injection mo(u)lding, wherein, entrance filling part50 air throttle part 50b and fuel gun mouth stopping part 53 are in being formed for the base (mount) of fuel meter etc.Being arranged on integratedly fuel fills in neck 45.
Tank lower member 41 is also molded by injection mo(u)lding. The tank upper member 40 of injection mo(u)lding and the cooperation table of tank lower member 41Face 42 is by utilizing heater such as the thermosol of heating plate is by thermal weld, thereby is combined into one, thereby, resinFuel tank 18 is manufactured into distortion case.
Thereby the definite installation sky of dilly such as scooter-type vehicle 10 that be assemblied in of the tank geometry of resin fuel tank 18In. For example,, if resin fuel tank 18 is designed to be assemblied on the backboard 19 of scooter-type vehicle 10, for drawingThe desired location of the guide recess 66 of leading afterframe 15 on the lateral wall at tank during injection mo(u)lding is molded integratedly in advance.Guide recess 66 allows fuel tank 18 be stably mounted.
In addition, the inner pot part not showing, such as petrolift, fuel meter and oil filter, by inserting through installing hole 46And be arranged in resin fuel tank 18. These interior sections during refuelling not can due to the spray nozzle part of fuel gun 60Point (fuel nozzle) 61 contacts and damaged. Fill in neck 45 fuel gun mouth stopping part 53 and cylindrical part at fuelPoints 43 are arranged on the below of the inner cylinder portion 50a of entrance filling part 50 integratedly, and the nozzle segment 61 of fuel gun 60Without the deep fuel tank 18 of inserting of nozzle stopping part 53.
The operation of the first embodiment:
Below description is there is to the operation of the first embodiment of said structure.
In the time supplying fuel in resin fuel tank 18, the nozzle segment 61 of fuel gun 60 is by removing fuel cap 49Filling neck 45 through fuel inserts in fuel tank 18. Fuel nozzle (nozzle segment) 61 is inserted into nozzle insertion end and connectsTill contacting the support ring 55 of fuel gun mouth stopping part 53 of the below of the inner cylinder portion 50a that is arranged on entrance filling part 50.At fuel nozzle 61, after the support ring 55 of fuel gun mouth stopping part 53, fuel starts by operation fuel gun 60Supply with and be injected in fuel tank 18. Fuel nozzle 61 near the support ring 55 of fuel gun mouth stopping part 53 itAfter, fuel starts to supply with and be injected in fuel tank 18 by operation fuel gun 60.
During via fuel gun 60 refuellings, the nozzle segment (fuel nozzle) 61 of fuel gun 60 stops inserting as figureShown in 12, be positioned at the nozzle end part contacting with support ring 55. Suppress the upper surface of the nozzle end part of fuel nozzle 61With contacting in interior week of air throttle part 50b. Similarly, because the nozzle segment of fuel gun 60 61 is filled neck 45 with fuelThe contact of (entrance) mouthful shape portion and be kept, therefore fuel gun 60 exists by end portion and the upper part of nozzle segment 61On two (up and down) point, be kept, thus just can refuelling without hand.
Further note, in the time being equipped with the auto stop of fuel system of fuel gun 60 and bringing into operation, support ring 55Height and position preset into fuel and will be supplied to full water in fuel tank 18 flat (fuel contents gauge).
The effect of the first embodiment:
The first embodiment will realize following effect.
Because resin fuel tank 18 is by thermal weld with in conjunction with the tank upper member 40 of injection mo(u)lding and tank lower member 41The injection mo(u)lding article that matching surface 42 is manufactured, therefore, during the injection mo(u)lding of tank upper member 40, are arranged on fuel and fillInner cylinder portion 50a, air throttle part 50b and the fuel gun of the entrance filling part 50 of the below of the cylindrical portion 43 of neck 45Mouth stopping part 53 can with tank upper member 40 injection mo(u)lding integratedly. Therefore, resin fuel tank 18 can be to reduceThe injection mo(u)lding article that the quantity of a lot of parts and manufacturing step is manufactured, thus reduce production costs.
Further, filling in neck structure according to the oil of the resin fuel tank 18 of the present embodiment, air throttle part 50bBe molded in integratedly in the lower part of the entrance filling part 50 being combined into one with cylindrical portion 43, strengthen resin fuelMachinery and the physical strength of the entrance filling part 50 in tank 18.
Further, filling in neck structure according to the oil of the resin fuel tank 18 of the present embodiment, air throttle part 50bDuring the injection mo(u)lding of tank upper member 40, be arranged on integratedly entrance filling part 50 with fuel gun mouth stopping part 53The below of inner cylinder portion 50a, therefore, during injection mo(u)lding, insert fuel and fill the nozzle of the fuel gun 60 of neck 45Partly (fuel nozzle) 61 do not inserted nozzle stopping part 53. This can prevent and be arranged in resin fuel tank 18Inner pot part such as petrolift contacts with fuel meter, and solve inner pot part due to the impaired worry of contact.
In addition, in the fuel gun mouth stopping part 53 being arranged in resin fuel tank 18, the first oilhole 56 (center oilHole) and the second oilhole 57 (side oilhole) nozzle segment 61 of being configured with fuel gun 60 can be from the hole chi of process whereinVery little and shape. The fuel gun 60 of insertion fuel filling neck 45 is placed in nozzle end part and the combustion with fuel nozzle 61(entrance) mouthful shape portion that material is filled neck 45 contacts and stably keeps on two (up and down) points. In addition, becauseThe upper surface of the nozzle end part of fuel nozzle 61 by with the connecing in interior week of the air throttle part 50b of entrance filling part 50Touch and be engaged, the entrance side mouth shape portion that fuel gun 60 allows the end of nozzle segment 61 fill neck 45 by fuel is grabbedLive and support, thus just can refuelling without hand.
Further, in resin fuel tank 18, because the lower end position of the air throttle part 50b of entrance filling part 50The end of putting the air throttle part 50b that serves as the full line of fuel contents gauge 51 and inwardly narrow is set to full oil level, therefore as behaviourWhen work person looks down through fuel filling neck 45, easily and simply visually check fuel.
Further, fill in the cylindrical portion 43 of neck 45 at fuel, in passage 64 and entrance filling part 50The 50a of cylinder portion forms, and passage 64 can utilize the groove shoulder structure formation of injection forming mold, therefore elimination standardStandby new die is to form the needs of passage 64. This can lower die cost.
The second embodiment:
Next, the second embodiment of resin fuel tank is described with reference to Figure 13.
As shown in figure 13, according to the resin fuel tank 18A of the second embodiment by conjunction with blow molding and injection mo(u)lding andThe moulded resin article of manufacturing, and in this, the second embodiment is different from the resin fuel tank according to the first embodiment18 injection mo(u)lding resin article. In addition, with the identical mark of parts identical in the resin fuel tank 18 of the first embodimentNumber represent, and its describe omit.
According in the resin fuel tank 18A of the second embodiment, because can body 70 is molded by blow molding, andThe overall exterior shape of can body 70 is with almost similar according to the resin fuel tank 18 of the first embodiment, and it describes province in detailSlightly. But, because can body 70 is formed by blow molding, therefore needn't be independent to tank upper member 40 and tank lower member 41Injection mo(u)lding is carried out on ground, and this is different from the resin fuel tank 18 according to the first embodiment, and the outer pot of can body 70Shape is utilized the blow molding integratedly of blowing mould.
But the cylindrical portion 43 rising from the tank deck surface 44 of can body 70, this can body 70 is blow moldingProduct, the cylindrical that stepped portion 72 is filled neck 45A by fabricate fuel forms. The inner cylinder portion 73a of entrance filling part 73The stepped portion 74 of (head part) is inserted and is remained in the stepped portion 72 of cylindrical portion 43. Form fuel filling neckThe inner cylinder portion 73a of the entrance filling part 73 of the 45A of portion by with air throttle part 73b and fuel gun mouth stopping part 53 1Body ground is molded and manufacture individually.
As inner cylinder portion 73a and air throttle part 73b and the nozzle retainer of the entrance filling part 73 of injection mo(u)lding articleDivide 53, be formed as having the inner cylinder portion being similar to according to the entrance filling part 50 of the resin fuel tank 18 of the first embodimentThe entrance geometry of 50a, air throttle part 50b and fuel gun mouth stopping part 53.
According in the resin fuel tank 18A of the second embodiment, determine that the can body 70 of outer pot shape is by being blow molded intoType is manufactured, but is mounted in inner cylinder portion 73a, air throttle part 73b and the combustion of the entrance filling part 73 in fuel tank 18ASpray gun mouth stopping part 53 is injection mo(u)lding article of manufacturing individually by injection mo(u)lding. Injection mo(u)lding article are inserted from upsideThe fuel that enters the can body 70 of blow molding is filled neck 45A, and the ladder of the inner cylinder portion 73a of entrance filling part 73Part 74, fills the stepped portion 72 of neck 45A and assembles and engage with fuel, this stepped portion is injection mo(u)lding article.The stepped portion 74 of entrance filling part 73 is formed in the head part on tubular outer circumferential side.
The operation of the second embodiment and effect:
The second embodiment of said structure is by operating below and having a beneficial effect.
According in the resin fuel tank 18A of the second embodiment, although determine that the can body 70 of outer pot shape is to pass throughBlow molding manufacture blow molding article, but such as form fuel fill neck structure entrance filling part 73 inThe insertion formed article of the 73a of cylinder portion and fuel gun mouth stopping part 53 is injection-molded articles.
According in the resin fuel tank 18A of the second embodiment, stepped portion 72 by after blow molding tank masterIn the hole side of the cylindrical portion in the fuel filling neck 45A of body 70, be processed to form. , by the independent landform of injection mo(u)ldingThe injection mo(u)lding article of the entrance filling part 73 becoming insert the fuel filling neck of fuel tank 18A from the upside of fuel tank 18AIn the 45A of portion, and as the outer circumferential side stepped portion 74 of the head part of injection mo(u)lding inner cylinder portion 73a, be engaged and be fitted to cylinderIn stepped portion 72 in the side of shape hole. This adaptation can be carried out by thermal weld technique. Resin fuel tank 18A passes throughIn fuel filling neck 45A, inserted mode system injection mo(u)lding article are manufactured.
In resin fuel tank 18A, the injection mo(u)lding article 75 (entrances of inserted mode system in fuel filling neck 45AFilling part 73 and fuel gun mouth stopping part 53) have with according to the injection mo(u)lding article of the first embodiment, (entrance is filledPart 50 and fuel gun mouth stopping part 53) identical geometry.
In addition, resin fuel tank 18A has the structure being formed by following mode inserted mode system. Stepped portion 72 is passed throughAfter blowing molding forming treatment in the cylindrical of the fuel filling neck 45A of the can body 70 of blow molding, process operation setting,The entrance filling part 73 of the injection mo(u)lding article 75 of injection mo(u)lding inserts in stepped portion 72 individually, and in tubularStepped portion 74 on outer circumferential side is adapted therein. Under the entrance filling part 73 at injection mo(u)lding article 75Side arranges the fuel filling neck 45A that fuel gun mouth stopping part 53 is constructed integratedly, can obtain and be similar to according to first in factExecute routine fuel and fill operation and the effect of the entrance filling part 50 of neck 45.
It should be noted that in the above description, although described and be assemblied in pedal-type car with reference to embodiments of the inventionResin fuel tank on, resin fuel tank is not limited to a kind of scooter-type vehicle, can also be installed in motorcycle,On motor tricycle, all-terrain vehicle and other similar dillies. Further, although only present by way of example of the present inventionEmbodiment, they do not think the category that restriction is invented. Without prejudice to mentally of the present invention, can be with various other forms andThese embodiment are implemented in various omissions, replacement and change.
Claims (11)
1. a fuel tank, is characterized in that, comprises:
Fuel tank main body, described fuel tank main body comprises tank upper member and tank lower member, described tank upper member and described tankLower member is by resin material injection mo(u)lding, and described fuel tank main body be by thermal weld by described tank upper member and described inTank lower member is integrally welded;
Rising part, described rising part is tubular from described tank upper member and rises;
Fuel is filled neck, and described fuel is filled neck and is arranged at the described rising part rising from described tank upper member;
Entrance filling part, described entrance filling part is arranged to extend to from the cylindrical portion of described fuel filling neckDescribed fuel tank; With
Fuel gun mouth stopping part, described fuel gun mouth stopping part and described entrance filling part are set to one, positionIn the below of the inner cylinder portion of described entrance filling part.
2. fuel tank as claimed in claim 1, is characterized in that, described entrance filling part has air throttle part,Described air throttle part is formed as below described inner cylinder portion and downwards towards inner circumferential side bending, and described fuel gun mouth onlyMoving part is set to one with the below of described air throttle part.
3. fuel tank as claimed in claim 1 or 2, is characterized in that, described fuel gun mouth stopping part comprises multiplePillar and support ring, described pillar is connected to the described air throttle part of described inner cylinder portion, and described support ring is used for describedPost links together, and the hole that the first oilhole is formed by the interior circumferential portion of described support ring forms, and the second oilhole is formed on instituteState between pillar and in the bottom of described air throttle part and divide between described support ring.
4. fuel tank as claimed in claim 3, is characterized in that, in described fuel gun mouth stopping part, and describedThe aperture of one oilhole and the second oilhole is set as being less than the external diameter of described fuel gun mouth stopping part.
5. the fuel tank as described in claim 3 or 4, is characterized in that, in described fuel gun mouth stopping part, and instituteThe cross sectional shape of stating support ring is: in the direction of the axis perpendicular to described support ring, ring upper surface is formed as and side surfaceThe Curved top surface of contact, and the inner surface of described Curved top surface is formed as towards described the first oilhole downward-slopingCurved surface.
6. fuel tank as claimed in claim 2 or claim 3, is characterized in that, at the described inner core of described entrance filling partIn the lower part of portion, the lower end position of described air throttle part is as the full line of fuel contents gauge.
7. fuel tank as claimed in claim 6, is characterized in that, the described air throttle part of described entrance filling partDescribed lower end position contact joint with the nozzle end part of fuel gun in using, and described fuel gun is by described solar termThe mouth shape portion that the described lower end position of door section and described fuel are filled neck keeps.
8. fuel tank as claimed in claim 1, is characterized in that, described fuel is filled neck and filled out along described entranceFill on the route of described inner cylinder portion of part and be provided with passage.
9. for the manufacture of a method for fuel tank, described fuel tank is provided with that fuel is filled neck and from fuel tank main bodyThe rising part that upper surface rises, is characterized in that, described method comprises step:
By resin material injection mo(u)lding tank upper member and tank lower member to form fuel tank main body, and by by injection mouldingThe tank upper member of moulding and the matching surface thermal weld of tank lower member and form the fuel tank main body of box-shaped, described fuelCan body is provided with above-mentioned rising part; With
During the injection mo(u)lding of described tank upper member, in described fuel tank, below described fuel filling neckForm the entrance filling part being integrated with described fuel tank.
10. the method for the manufacture of fuel tank as claimed in claim 9, is characterized in that, further comprises step:During the injection mo(u)lding of described tank upper member, in the lower part of described inner cylinder portion, below air throttle part with described in enterMouth filling part molded fuel gun mouth stopping part integratedly; With with molded multiple integratedly of described fuel gun mouth stopping partsPost and support ring, make described pillar by extending and described support ring quilt with curving inwardly from described air throttle part downwardsBe fixed to the end of described pillar.
11. 1 kinds of fuel tank, described fuel tank has the fuel tank main body that resin material is formed by blow molding, described inFuel tank main body is formed with the rising part forming as one with it; It is characterized in that,
Described rising part is tubular and is arranged in described fuel tank main body, and fuel is filled described in neck is arranged onIn rising part, and stepped portion is that the cylindrical of filling neck by processing described fuel forms; And
Wherein, form entrance filling part by other resin material injection mo(u)lding, this entrance filling part is formed asCan insert described fuel and fill the described stepped portion of neck, and described entrance filling part has fuel gun mouth retainerPoint, described fuel gun mouth stopping part is arranged on the below of inner cylinder portion and forms as one with it, and described inner cylinder portion is from described combustionThe tank upper surface of batch can extends downwards.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-232489 | 2014-11-17 | ||
| JP2014232489A JP6464690B2 (en) | 2014-11-17 | 2014-11-17 | Filling port structure of resin fuel tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105599836A true CN105599836A (en) | 2016-05-25 |
| CN105599836B CN105599836B (en) | 2019-06-28 |
Family
ID=55980316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510788978.3A Expired - Fee Related CN105599836B (en) | 2014-11-17 | 2015-11-17 | Fuel tank |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6464690B2 (en) |
| CN (1) | CN105599836B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6593888B2 (en) * | 2017-06-27 | 2019-10-23 | 株式会社Ｆｔｓ | Fuel tank pipe mounting structure |
| WO2021205467A1 (en) * | 2020-04-09 | 2021-10-14 | Tvs Motor Company Limited | A vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08198161A (en) * | 1995-01-23 | 1996-08-06 | Suzuki Motor Corp | Fuel receiving port of resin-made fuel tank used for small vehicle |
| JP2008155587A (en) * | 2006-12-26 | 2008-07-10 | Fts:Kk | Manufacturing method of hollow resin molded product |
| CN101412417A (en) * | 2007-10-19 | 2009-04-22 | 本田技研工业株式会社 | Fuel inlet structure of fuel tank |
| CN202879690U (en) * | 2012-10-12 | 2013-04-17 | 江门市大长江集团有限公司 | Fuel tank oil filler component |
| CN103228727A (en) * | 2010-10-14 | 2013-07-31 | 提克纳有限责任公司 | VOC or compressed gas containment device made from polyoxymethylene polymer |
| JP2014121906A (en) * | 2012-12-20 | 2014-07-03 | Daimler Ag | Fuel filler structure for fuel tank |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5435413U (en) * | 1977-08-13 | 1979-03-08 | ||
| JPS56120921U (en) * | 1980-02-18 | 1981-09-14 | ||
| JPS63183815A (en) * | 1987-01-27 | 1988-07-29 | Honda Motor Co Ltd | Manufacture of synthetic resin fuel tank |
| JP3577925B2 (en) * | 1997-12-25 | 2004-10-20 | スズキ株式会社 | Motorcycle fuel tank structure |
| JP2007131031A (en) * | 2005-11-08 | 2007-05-31 | Yamaha Motor Co Ltd | Saddle riding type vehicle |
| JP4991346B2 (en) * | 2007-02-27 | 2012-08-01 | 本田技研工業株式会社 | Motorcycle fuel tank |
| JP5049737B2 (en) * | 2007-10-23 | 2012-10-17 | 本田技研工業株式会社 | Refueling port device for vehicle fuel tank |
| US8714212B2 (en) * | 2010-12-17 | 2014-05-06 | Kenneth A. Watson | Fuel inlet including a nozzle retention device |
-
2014
- 2014-11-17 JP JP2014232489A patent/JP6464690B2/en active Active
-
2015
- 2015-11-17 CN CN201510788978.3A patent/CN105599836B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08198161A (en) * | 1995-01-23 | 1996-08-06 | Suzuki Motor Corp | Fuel receiving port of resin-made fuel tank used for small vehicle |
| JP2008155587A (en) * | 2006-12-26 | 2008-07-10 | Fts:Kk | Manufacturing method of hollow resin molded product |
| CN101412417A (en) * | 2007-10-19 | 2009-04-22 | 本田技研工业株式会社 | Fuel inlet structure of fuel tank |
| CN103228727A (en) * | 2010-10-14 | 2013-07-31 | 提克纳有限责任公司 | VOC or compressed gas containment device made from polyoxymethylene polymer |
| CN202879690U (en) * | 2012-10-12 | 2013-04-17 | 江门市大长江集团有限公司 | Fuel tank oil filler component |
| JP2014121906A (en) * | 2012-12-20 | 2014-07-03 | Daimler Ag | Fuel filler structure for fuel tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6464690B2 (en) | 2019-02-06 |
| JP2016094146A (en) | 2016-05-26 |
| CN105599836B (en) | 2019-06-28 |
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Granted publication date: 20190628 Termination date: 20211117 |