CN1091710C - Auxiliary part's installation for motor bicycle - Google Patents

Abstract

The invention provides a configuration and structure of the auxiliary machinery for a motorcycle. An oil tank is arranged between a two-cycle engine and a fuel tank arranged above. The oil tank is disposed in a position closer to the left side of a motorcycle body so as to be overlapped with the left side of the fuel tank from the top view and below the lower edge of the fuel tank from the side view and that in a position partially overlapped with the upper part of the engine, and suspension-supported to an auxiliary machinery support member supported to a body frame. The outside of the oil tank is covered with an auxiliary machinery cover fitted to the lower end part of the fuel tank. The auxiliary machinery cover is of divided structure of a body part and an auxiliary part, and the body part is decoratively painted so as to be conspicuous. An inspection opening is further provided for the auxiliary part to inspect the oil quantity of an auxiliary chamber.

Description

The arrangement of the auxiliary part of motor bike

The present invention relates to structure, especially relate to the structure of the auxiliary part configuration that is suitable for two-cycle engine at the driving engine of motor bike and the spatial allocation auxiliary part between the Fuel Tank.

At the real arrangement that discloses a kind of auxiliary part for clear 61-91482 number of opening of Japanese patent gazette, it has disposed Fuel Tank above two-cycle engine, the front side, bottom of Fuel Tank is tilted up toward oblique the place ahead, form the recess space, and at this recess spatial allocation fuel tank.

Under the situation of above-mentioned structure, sacrifice propellant capacity because of the recess space that forms auxiliary part configuration usefulness easily.In addition, just because of in this recess space, disposed fuel tank separately as auxiliary part, so there is not rich space can place other auxiliary part.

In order to solve above-mentioned problem, the invention provides a kind of auxiliary part arrangement of motor bike, this motor bike is equipped with driving engine of being supported by the vehicle body frame of supporting front and back wheel and the Fuel Tank that disposes above it; It is characterized in that: fluid box is seen under Fuel Tank below the ora terminalis and overlapping with the part, top of driving engine from the side, and then, see and be configured on the position that the left and right directions either side to car body gets close to from overlooking, simultaneously, the side direction of side sees that the auxiliary part cover of ovalize is provided with the body opposite side with being pair of right and left substantially outside hiding this liquid tank.

At this moment can get aforementioned driving engine and make two-cycle engine, make fuel tank and fluid box got.

In addition, can see position configuration aforesaid liquid case other auxiliary part in addition that is hidden from side direction by the auxiliary part cover of the opposite side that is arranged at above-mentioned car body, and this structure is two-cycle engine and fluid box when being fuel tank and under other situation at driving engine, and for example driving engine is that four-stroke motor and fluid box are got and done also can be suitable under the situation of liquid with storage bin etc.

And then above-mentioned driving engine is a two-cycle engine, when the aforesaid liquid case is fuel tank, also can adopt as above-mentioned other auxiliary part to be used to drive the actuating device that two-cycle engine exhaust timing control valve is used.

In addition, the auxiliary part cover that hides the aforesaid liquid case is split up into main part and assisted parts, spray paint at main part, simultaneously, form on assisted parts surface and to compare the so unshowy surface of outward appearance with aforementioned body portion, and also can on this assisted parts, observation window be set for the oil mass of estimating the aforesaid liquid case.

Between Fuel Tank and driving engine top, dispose fluid box, make this fluid box see and get close to car body left and right directions either side simultaneously from overlooking direction, and from side direction see below ora terminalis under the Fuel Tank and also a part overlapping with the top of driving engine, so even disposed as the bigger fluid box of the capacity of auxiliary part with also can sacrificing fuel tank capacity.

And, because this fluid box is configured between Fuel Tank and the driving engine top and a side of getting close to car body, thereby make it be configured to script from the position that lateral direction is seen clearly easily, this sacrifices outward appearance of car body certainly easily.

Yet, because the outer side at fluid box is hidden by the auxiliary part cover of pair of right and left cardinal principle ovalize, so see that from side direction Shi Buhui feels the overhanging of liquid tank, and this auxiliary part cover is not simple cover, but the outward appearance of formation as duty of engine parts, make it outstanding in appearance, thereby can not sacrifice the outward appearance of car body.

At this moment, the occasion adopt two-cycle engine as the form of driving engine can dispose the fuel tank that two-cycle engine is used as fluid box.

In addition, the space that the auxiliary part cover that utilization is provided with by an opposite side with fluid box in car body hides, can dispose the auxiliary part outside the fluid box,, thereby improve space availability ratio so the space between Fuel Tank and driving engine can dispose a plurality of auxiliary parts along left and right directions.

And, situation at two-cycle engine, if fluid box is a fuel tank, other auxiliary part then forms and is easy to the structure of distribution and pipe arrangement between these auxiliary parts and two-cycle engine respectively for driving the actuating device of two-cycle engine exhaust timing control valve.

And then, the auxiliary part cover that hides fluid box is split up into main part and assisted parts, only main part is sprayed paint and make it showy, owing to have not compelling in appearance surface, main part is familiar with is the auxiliary part cover at assisted parts.

Therefore, the size that can irrespectively set the auxiliary part cover with the capacity and the oad size of fluid box can be provided with the auxiliary part cover of every kind of desired desirable amount in appearance design of car, so commonality has also improved.

And, by not setting assisted parts, can make main part very eye-catching with making one notice, and, can take off the auxiliary part cover and just can estimate the amount of liquid of determining fluid box, and can be arranged on not compelling position by observation window is set.

Accompanying drawing 1: the left side view of the motor bike that the present invention is suitable for;

Accompanying drawing 2: the main portion enlarged drawing of motor bike

Accompanying drawing 3: the outward appearance left side view around the Fuel Tank

Accompanying drawing 4: the outward appearance birds-eye view around the Fuel Tank

Accompanying drawing 5: auxiliary part props up the birds-eye view of frame peripheral

Accompanying drawing 6: auxiliary part props up the left side view of frame peripheral

Accompanying drawing 7: the figure of the main part of expression auxiliary part cover and the joint construction of assisted parts

Accompanying drawing 8: the broad cross-section map of the supporting mechanism of expression fuse box

Following according to description of drawings one embodiment of the invention.Fig. 1 is the integral left lateral plan of the motor bike that is suitable for of the present invention, and Fig. 2 is the figure that its main portion is amplified.At first according to these two its single-piece general structures of figure explanation.

This motor bike is to constitute so as a whole,, by making the front fork long wheel base of bevelled greatly, is formed on the outward appearance of configuration American or traditional (カ ス system) motor bike Fuel Tank, that the vehicle seat position is low on the lower position between the front and back wheel that is.

Support that the top of the front fork 2 of front-wheel 1 is being supported by end crane span structure 3 and 4 correct pipe 5 rotations of top crane span structure tilted rearward the time greatly freely.

After being installed in handle 6 on the top crane span structure 4 and stretching greatly upward earlier, make handle, be formed on such conventional handle shape in American version or the traditional motor bike towards the below.

Head pipe 5 is installed in main frame 10 on its leading section along the direction configuration forwards, backwards of car body line of centers, and from the beginning forebody 10a manages the slow geosyncline of 5 beginnings below and extend to the rear always, bends to substantially the latter half of 10b that direction up and down stretches afterwards.

From the beginning manage about 5 bottom and begin, under stretch framework 11 and be pair of right and left geosyncline below and stretch, its bottom is connected to the underframe 12 that stretches of direction forwards, backwards of on even keel substantially, and backstay 13 begins obliquely the side and be pair of right and left ground backward to stretch continuously from the rearward end of this left and right sides underframe 12.

About the rearward end of underframe 12 between right angle intersection pipe 12a is set, the bottom that constitutes the latter half of 10b of main frame 10 is connected on the pars intermedia of this right angle intersection pipe 12a (Fig. 2).

Connect pivot plate 14 between underframe 12 rear portions, the left and right sides and backstay 13 bottoms, that cardinal principle is triangular in shape and be provided with in pairs about vehicle body, its central portion is provided with the hinge portion 14a of underframe described later.

From the rearward end of the forebody 10a that constitutes main frame 10, pair of right and left seat rail 15 stretches backwards to oblique below, and the top of left and right sides backstay 13 is connected to its middle part.

About seat rail 15 nearby crooked at pars intermedia and connecting portion backstay 13, be on even keel substantially and rearward stretch, by the foreign side of rear mudguard 42 described later, lateral surface hides with clamping bar 16 simultaneously.

This clamping bar 16 usefulness secure component 17a and 17b and about seat rail 15 and in rear mudguard the pair of right and left subframe 18 of configured in parallel integrated, simultaneously back signal lamp 19 is supported on the rearward end of clamping bar 16.

Main frame 10, stretch framework 11, underframe 12, backstay 13 down and seat rail 15 constitutes vehicle body frames, wherein main frame 10, stretch the front portion that framework 11 and underframe 12 constitute vehicle body frames down, support driving engine 20 herein.

Driving engine 20 is water-cooled two stroke formulas, formation is just like the such outward appearance of air cooling four stroke formula, imitated air cooling four-stroke engine cylinder part side face appearance shape about the 20a of cylinder portion, hidden by the cylinder cowl 20b that forms the such shape of air cooling radiating gill etc.

This driving engine 20 is air-breathing from the air purifier 22a in the side cover 22 by carburettor 21, through freeing pipe 23, exhaust chamber 23a and silencer 24 exhausts that are configured to the car body right side.

As shown in Figure 2, exhaust chamber 23a is configured in the fore-and-aft direction of the central portion below of driving engine 20, by the diversion division 23b of hole enlargement and diameter maximum gradually and line part 23c that diameter is certain rearward and rearward gradually the coniform diversion division 23d of undergauge constitute.

Dispose two sections catalysis tube 23e longways in the axle center part upper edge of exhaust chamber 23a fore-and-aft direction length; The front side of this catalysis tube 23e is small-bore, and rear side is a heavy caliber, and diameter is divided into two sections variations; Be provided with catalyst in advance equably on its surface, the waste gas of the higher temperatures that is contacted to by two sections catalysis tube 23e inside and outside the time purifies.

Be formed for avoiding the curve 23f of right angle intersection pipe 12a on the top of line part 23c, begin branch simultaneously goes out tail pipe 23g and extends to the car body right side from rearward end side nearby, thereafter the end is routed to silencer 24, has so improved the installation degree of freedom of exhaust chamber 23a.

The right flank of this tail pipe 23g is hidden by the exhaust side cover 23h of appearance through electroplating processes, is integral ground continuously as silencer 24 with diversion division 23d in appearance when car body right side side is seen.

Symbol 25 is crank cases, the 26th, and output chain gear relies on this output chain gear 26, chain 27 and driven sprocket 28 to drive trailing wheel 29.This trailing wheel 29 is equipped with discoideus butterfly wheel.

Trailing wheel 29 is being supported by the rearward end of postbrachium 30.This postbrachium 30 is made of with the 30b of right angle intersection portion that is connected each leading section a pair of arm 30a.The 30b of this right angle intersection portion is by supporting that on the pivot point 14a of pivot plate 14 the pivot 14b (Fig. 2) at its two ends can be towards upper and lower to swingingly being supported freely.

In addition, as among Fig. 2 pivot plate 14 cut shown in the part back like that, the 30b of the right angle intersection portion that is in the latter half of 10b of main frame 10 part nearby forms forwards crooked recess 10c, even latter half of 10b is arranged on the car body central portion, also can to left and right direction right angle intersection portion be set continuously and hinder latter half of 10b.

Utilize the spatial allocation heat transmission water storage tank 31 that forms between the left and right sides arm 30a of toe lateral of postbrachium 30, see with the arm 30a of postbrachium 30 overlapping from side direction, dispose the storage battery 32 that its major part is hidden by side cover 22 above it, and then energy disperser 33 is installed between the top of the rear portion of arm 30a of postbrachium 30 and backstay 13.

On main frame 10, support normally used tear drop shape Fuel Tank 34 in American version or the traditional motor bike, various meters 36 such as instrument case 35, speed meter are set on the front portion in the above are installed in here, on its rear portion, giving prominence to the head of Fuel Tank inlet block 34d.

Auxiliary part cover 37 is installed in about the bottom of Fuel Tank 34, auxiliary part cover 37 usefulness resins about these form and surface electrical is plated to silver color, hide till each upper side of the cylinder cover 20b that is positioned at Fuel Tank 34 belows, perhaps look like the such outward appearance of metal style air purifier.

The step-like seat 38 in the rear of Fuel Tank 34 is supported on the seat rail 15, and there is one section seat 39 higher, that the formation co-driver is used at the rear portion of this step-like seat 38, thereby constitutes love seat.

This seat 38 is to trailing wheel 29 lower position configuration nearby, so that reduce the seat, the shape of above-mentioned handle bar 6 and Fuel Tank 34 jointly is formed on characteristic car body outward appearance commonly used in American version or the traditional motor bike.

At the rear of co-driver seat 39, the defensive position that duct member is formed arcuation substantially towards upper and lower to configuration, the defensive position that connects its bottom is held in the lateral branch of base portion 41 by rear mudguard 42 on the rearward end of seat rail 15.

Rear mudguard 42 enters between the left and right sides seat rail 15 and is being supported, simultaneously, configuration taillight 43 and mudflap 44 etc. on rearward end, these parts are supported by the subframe 18 of rear mudguard 42 inboards.

Symbol 45 is to hide by the forebody 10a of head pipe 5, main frame 10 and stretch the pair of right and left corner plate in the space that framework 11 forms down; The 46th, by the fuel tank of auxiliary part cover 37 coverings; The 47th, oil pump is installed near the inlet manifold, and is routed on the electromagnetic valve 49 of upholder 48 supports that stretched upward.

The 50th, fuel valve, the 51st, the induction chamber that links to each other with the induction pipe of carburettor 21 downstream sides, the 52nd, cooling vessel, 52a are water pumps.

The 53rd, change pedal, the 54th, the brake pedal on car body right side, they are arranged on the position in the place ahead, bottom that is equivalent to driving engine 20, and the driver adopts the posture by bus of forwards stretching the such American or traditional motor bike of pin.

Brake pedal 54 is bearing near the front running board 55, by the master cylinder 56 that the fore-and-aft direction at length direction disposes towards underframe 12, brake brake clamp 57 actions after just making.

Rise and fall on the centre portion of the underframe 12 on the left of car body side stand 58 (Fig. 1) is set freely, back step 59a is installed on the backstay 13 by pedal support 59.

The arrangement of auxiliary part below is described in further detail.Fig. 3 is the outward appearance left side view around the Fuel Tank, Fig. 4 is its birds-eye view (an omission instrument case), Fig. 5 is the birds-eye view around the auxiliary part support rack, Fig. 6 is its left side view (omitting the auxiliary part cover), Fig. 7 is illustrated in the main part of auxiliary part cover of liquid tank side and the joint construction figure of assisted parts, and Fig. 8 is the schematic cross-sectional views of expression fuse box support structure.

The left and right sides sidepiece of Fuel Tank 34 hangs down in these figure, forms left chamber 34L and the 34R of right ventricle, so that form saddle type substantially, and then they is communicated with, and forms central upper chamber 34C.

As shown in Figure 4, general plan was the portion that bend into 60 that U word shape (overlook and see) enters after the front, center of Fuel Tank 34 formed in the past direction, relied on this to bend into portion 60 and formed the auxiliary part configuration use space 61 between the place ahead of central upper chamber 34C and left chamber 34L and the 34R of right ventricle.

This top that bend into portion 60 is hidden by instrument case 35, and the part of the meters of being supported by instrument case 35 36 is charged into configuration in the space 61 by making its underpart, and the overhang to the Fuel Tank top has been reduced.

The auxiliary part holding components 65 that is made of left tray 62 and the right carriage 63 of the 34R of right ventricle side and the right angle intersection pipe 64 that is connected two carriages etc. of left chamber 34L side is contained in this space 61 in addition.

The central portion of right angle intersection pipe 64 connects by the support (having omitted diagram) of and be connected main frame 10 and stretching reinforced pipe 57 (Fig. 1, the 2) side of framework 11 down at car body bracket for mounting 66 places, thereby suspention supports to constitute the reinforced pipe of a vehicle body frame part.

Fig. 5 clearly illustrates that, supporting fuel tank 46 by left tray 62 by rubber plinth 68,69 suspentions, and its bottom is supported in the lower bracket 71 that is installed on from sagging support 70 bottoms of right angle intersection pipe 64.

Form hole 72 on one end of this lower bracket 71, be inserted on the fixedly rubber 72a that is matched with in the hole from the projection 73 of the bottom overhanging formation integratedly downwards of fuel tank 46, thus the decision position.

As shown in Figure 4, fuel tank 46 is from overlooking on direction sees than the position that bend into portion 60 more close left sides, and direction is extended configuration forwards, backwards, so that overlapping substantially with the top left side of Fuel Tank 34.Inlet forwards stretches out on leading section, and lid 75 has been installed on its top.

As shown in Figure 3, fuel tank 46 sees to side direction from the side-looking direction and stretches out, so that below the following ora terminalis of Fuel Tank 34 and with the cylinder head 20a that constitutes driving engine 20 and to hide its top of cylinder cover 20b overlapping.

On the cylinder 20c that constitutes the cylinder 20a of portion, form ventilation path 20d and exhaust channel 20e, near exhausr port 20f, the exhaust device 20g that can rely on pulley 20h being provided with to open and close its top with rotating freely.

Pulley 20h is driven by exhaust device actuating device described later and rotates, in case exhaust device 20g and its rotate integratedly, then makes the Level Change of exhausr port 20f, just can control evacuation time.

The symbolic representation of Fig. 3: 20i is a piston, opens and closes scavenge port 20j and exhausr port 20f by the crank motion in cylinder 20c.20k is the dome-type fuel chambers, and 20m is a cylinder head, and 20n is a light-up plug.

As shown in Figure 7, the rear portion of fuel tank 46 forms the concubine 76 that stretches out downwards with further dipping, and its inside is provided with fuel head switch 77, and joint 78 extends downwards from the bottom of concubine 76, is connected to the oil pump 47 (Fig. 2) of driving engine.

As shown in Figure 2, the feed path of oil begins to supply with in right amount to the downstream portion of carburettor 21 through the electromagnetic valve 49 of control oil supply amount from oil pump 47, and simultaneously, redundance turns back to the nearby portion of the inlet 74 of fuel tank 46.

By Fig. 3 and Fig. 7 as can be known, the outer side of sump housing hides (following when being necessary to distinguish the left and right sides by the auxiliary part cover 37L that adopts the aftermentioned structure to be installed to the lower end edge portion of left chamber 34L, after reference marks 37, when the regulation right side, add R, add L during the left side), and auxiliary part cover 37L separated into two parts, that is, hide the main part 80 of fuel tank 46 base portions and the assisted parts 81 of covering concubine 76.

Main part 80 and assisted parts 81 form with suitable materials such as plastics respectively, main part 80 surfaces are handled by vivid silver color coating and are imposed ornamental japanning, as the impression of the duty of engine parts of the air purifier box cover of seeing usually in the motor bike of American version or traditional motor bike.

Assisted parts 81 imposes surface treatment, adopt dark-coloured japanning or unobtrusive surface treatment with stressing main portion 80, giving a kind of impression of people, is another kind of functional component as main part 80 fully, forms the observation window 82 of the remaining liquid measure of range estimation concubine 76 simultaneously in the side.This position is selected in visual easily and is not subject to the place that the people gazes in appearance.

On the other hand, by Fig. 4 and Fig. 5 as can be known, nearby part Fuel Tank 34 34R of right ventricle one side in space 61, right carriage 63 will be supported the right angle intersection pipe as the exhaust device actuating device 83 and the fuse box 84 of auxiliary part.

As shown in Figure 5, exhaust device actuating device 83 is used to drive the exhaust device, and this exhaust device is used to control the evacuation time of driving engine 20.This exhaust gas drive device 83 is equipped with the pulley 86 that is driven by stepper motor that is contained in the main body box 85 and by the cable wire 87 of these pulley 86 operations.

As shown in Figure 3, the top of this cable wire 87 is connected on the pulley 20h, makes exhaust device 20g rotation by the stepper motor of exhaust device actuating device 83 by pulley 20h.

As shown in Figure 5, the main body box 85 of exhaust device actuating device 83 is installed on the carriage 91 by stretching out to be formed on its anterior installation portion 88,89 respectively by fixing rubber 90, and this carriage 91 is fixed on the right angle intersection pipe 64.

At this moment,, the hole portion of fixing rubber 90 is inserted on the pin 92 that stretches out from carriage 91 one,, tighten up (with reference to Fig. 6) with bolt 93 and the nut that is installed on carriage 91 1 sides in advance in installation portion 89 sides in installation portion 88 sides.

As shown in Figure 6, fuse box 84 engages to be supported to support on 96, and this supports 96 is installed to carriage 94 by the fixing WELD NUTS 94b of rubber 94a dependence bolt 95 and carriage 94, and this carriage 94 is installed on the right angle intersection pipe 64.

Fig. 8 is the schematic cross-sectional views that structure is supported in this connection of explanation, by being inserted into to the protrusion 98 that is T font section substantially that fuse box 84 lateral surfaces stretch out formation in the centre of supporting the rail-like portion 97 that 96 tops form, fuse box 84 is supported rapidly to support on 96.

By Fig. 5 and Fig. 6 as can be known, left and right sides auxiliary part cover 37L, 37R are equipped with wall portion 100 respectively, respectively at front and back hole 101 are set in each side of these wall portions 100, insert at these to cooperate annular rim rubber 102 on holes 101.

By being inserted into respectively from the tab 103 that inward direction before and after each upper inner edge portion of auxiliary part cover 37L, 37R stretch out by in this edge rubber 102 cingens insertion holes 101 and vibrationproof ground is installed.

Have again, for the main part 80 of auxiliary part cover 37L that the installation portion 105 that its underpart center through hole 104 and end at carriage 71 form is overlapping by Fig. 7 and Fig. 6 as can be known, and be fixed to screw 107 and be arranged on its inboard nut.

In addition, be with screw 110 and nut 111 bonded assemblys in the installation of the connecting portion of assisted parts 81 and main part 80, inboard overlapping to the flange 109 of the edge portion 108 of foreign side's bending and the inside side bending that forms at main part that will form this moment at assisted parts 81.

The below effect of explanation present embodiment.Configuration fuel tank 46 between Fuel Tank 34 and driving engine 20 tops, simultaneously, this fuel tank is overlooked down near the car body left side, and from the side-looking direction, the below of the following ora terminalis of close Fuel Tank 34, even and its part disposes overlappingly with the cylinder 20a of driving engine 20 and the top of cylinder cowl 20b thereof, so as the bigger fuel tank 46 of the capacity of one of required auxiliary part of two-cycle engine, also can dispose and needn't sacrifice the capacity of Fuel Tank 34.

And, fuel tank 46 is between Fuel Tank 34 and driving engine 20, stretch out to car body one side owing to its part simultaneously, regard as from outer side and to be more eye-catching configuration, but because this part hidden by auxiliary part cover 37L of ovalize slightly, so when the side is seen and fail to feel the stretching out of fuel tank 46.

And, because auxiliary part cover 37R is arranged on and the opposite car body right side of fuel tank 46 configuration sides, so auxiliary part cover 37L, 37R are seen as parts in appearance, and the surface is plated to silver color, it or not simple cover, but it is the same to seem the such duty of engine parts of air purifier, thus auxiliary part cover 37L, 37R can be used for the part of appearance design, even consequently configuration fuel tank 46 also can not be sacrificed the outward appearance of car body.

Utilize the space 61 of the auxiliary part cover 37R covering that is arranged at fuel tank 46 opposite sides in addition, can dispose the auxiliary part outside the fuel tank 46, be exhaust device actuating device 83 and fuse box 84, the place can dispose a plurality of auxiliary parts along left and right directions in the space between Fuel Tank 34 and the driving engine 20, improve space availability ratio.

And, for two stroke formula driving engines 20, fuel tank 46, exhaust device actuating device 83 and fuse box 84 nearby dispose on the top of driving engine 20 transversely arrangedly, so the exhaust pipe connection section that is formed on exhaust device actuating device 83 and cylinder 20a nearby and the arrangement that is easy to distribution and pipe arrangement between the oil pump of fuel tank 46 and below thereof.

And then the auxiliary part cover 37L separated into two parts that hides fuel tank 46: main part 80 and assisted parts 81, only japanning is decorated so that it is eye-catching to main part, and makes assisted parts not eye-catching, thereby can make and only main body 80 is familiar with as the auxiliary part cover.

Thus, because can irrespectively set auxiliary part cover size with the capacity and the oad size of fuel tank 46, so can pay the utmost attention to outward appearance ground be provided with can satisfy that each car type requires, for outward appearance sizeable auxiliary part cover, and commonality has also improved.

And then, observably do not set assisted parts 81 by appearance, can make main part 81 showy, and by observation window 82 is set, need not lay down auxiliary part cover 37 and just can estimate the amount of liquid of affirmation fuel tank 46, and can be arranged in appearance the not too position of interest.

In addition, when the main body box 85 that constitutes exhaust device actuating device 83 is installed, with the installation portion 88 of two positions, the installation portion 88 of a side in 89 is as the joint construction that adopts pin 92, and on the opposing party's installation portion 89, only connect a position, so loading and unloading operation is fast, assembleability has improved.

Equally, can support simply that so loading and unloading operation is fast, assembleability has improved because be inserted in supporting the rail-like portion 97 that 96 tops form with integrally formed 98 need of protrusion of fuse box 84.

In addition, the present invention does not limit the foregoing description, and various deformation programs can be arranged.For example, driving engine also can be a four-stroke motor, and fuel tank also can be replaced by the fluid box that holds various liquid.At this moment use the storagetank of cooling water expansion tank good.

Claims (5)

1. the auxiliary part arrangement of a motor bike, this motor bike are equipped with the driving engine supported by the vehicle body frame of supporting front and back wheel and the Fuel Tank of top configuration thereof, it is characterized by:

Fluid box is configured in from the side-looking direction and sees below ora terminalis under the Fuel Tank and some is overlapping but see on the position that gets close to car body left and right directions either side from overlooking direction with driving engine top, simultaneously, hide the outer side of this fluid box, when side direction is seen substantially the auxiliary part cover of ovalize be pair of right and left ground with the car body opposite side and be provided with.

2. the auxiliary part arrangement of motor bike according to claim 1 is characterized by:

Above-mentioned driving engine is a two-cycle engine, and the aforesaid liquid case is a fuel tank simultaneously.

3. the auxiliary part arrangement of motor bike according to claim 1 and 2 is characterized by:

Seeing on the position that is hidden by the auxiliary part cover that is arranged at above-mentioned car body opposite side the other auxiliary part beyond the configuration aforesaid liquid case from the side.

4. the auxiliary part arrangement of motor bike according to claim 3 is characterized by:

Above-mentioned driving engine is a two-cycle engine, and the aforesaid liquid case is a fuel tank, and simultaneously, above-mentioned other auxiliary part is the actuating device that is used to drive two-cycle engine exhaust timing control valve.

5. the auxiliary part arrangement of motor bike according to claim 1 is characterized by:

The auxiliary part cover that hides the aforesaid liquid case is divided into main part and assisted parts, the main part surface is covered with paint, lacquer, colour wash, etc., compare the so not eye-catching surface of outward appearance and the assisted parts surface formed with aforementioned body portion surface, and on this assisted parts, be provided for estimating the observation window of the amount of liquid of aforesaid liquid groove.

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