CN101970285A

CN101970285A - Layout structure for cooling duct for stepless transmsiion of straddle-riding type vehicle

Info

Publication number: CN101970285A
Application number: CN200980108999.9A
Authority: CN
Inventors: 中林俊一
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2008-03-18
Filing date: 2009-02-17
Publication date: 2011-02-09
Anticipated expiration: 2029-02-17
Also published as: CN101970285B; BRPI0910302A2; AR070823A1; WO2009116226A1

Abstract

A layout structure for a cooling duct for a stepless transmission of a straddle-riding type vehicle achieves high degrees of freedom in layout and design of portions around the cooling duct with a sufficient amount of cooling air supply in the duct assured. In the layout structure, a part of the cooling duct (43) is mounted so as to extend along a main pipe (12) and a rear frame (14) with a bend (80C) of the cooling duct located at the joint between the main pipe (12) and a rear upper pipe (14A). A suction opening (65) of the cooling duct (43) is connected to a side wall of a housing box (27) after passing through between the rear upper pipe (14A) and a rear lower pipe (14B). The layout structure facilitates fastening of a suspension section (90) of an engine (51) equipped with a belt converter cooling duct and is constructed without an increase in the weight of an engine hanger (50A).

Description

The toric transmission cooling duct arrangement structure of saddle-ride type vehicle

Technical field

The present invention relates to the toric transmission cooling duct arrangement structure of saddle-ride type vehicle, this arrangement structure is used to arrange the cooling duct of the belt-type transmission chamber that is connected to toric transmission.

Background technology

Known motor bike, wherein driving engine is provided with variable v-belt drive, and described toric transmission is to hang on the person in charge from being responsible for the mode of extending backward downwards.The pipeline of cooling duct is provided with air chamber, and this air chamber is arranged in the upside (for example, referring to patent documentation 1) of midway location front part along its length of the arm of postbrachium.

In addition, known traditional motor bike, wherein driving engine is provided with variable v-belt drive.This driving engine is provided with the belt-type transmission cooling duct that is used to cool off the belt-type transmission chamber.The driving engine that is provided with variable v-belt drive hangs on the person in charge's downside downwards in the mode of from the beginning managing backward and extend diagonally.

Be provided with the front end that suspension part on the front side of driving engine of variable v-belt drive is set at the end face of crankcase.The belt-type transmission cooling duct is connected to the top of toric transmission housing in the belt-type transmission chamber at the place, the back side of the suspension part on the front side of driving engine.The belt-type transmission cooling duct is installed to driving engine suspension (for example, referring to Patent Document 2) with its state of being installed to the top of belt-type transmission chamber in advance.

Patent documentation 1:JP-A No.2007-62716

Patent documentation 2:JP-A No.2007-62715

Summary of the invention

The problem that the present invention is to be solved

Yet problems of the prior art are that the capacity of air chamber is lower than the degree of freedom of the perimembranous of big and layout air chamber.It is overhanging that the problem of Cun Zaiing is to hide the body cover broad ways of air chamber in addition.Thereby the design-calculated degree of freedom is lower.

In addition, in above-mentioned structure, since the suspension part on the front side of driving engine the downside of being responsible for along main body backward and the downward diagonally mode mode of extending be set at the front end of the crankcase of horizontal engine, the person in charge is left in suspension part on the front side of driving engine, the driving engine suspension is grown and is broadened, and the weight of main body increases.

Be conceived to above-mentioned situation and make the present invention, and the target of embodiment is to provide the toric transmission cooling duct arrangement structure of saddle-ride type vehicle, wherein can strengthen the degree of freedom and the design-calculated degree of freedom of the perimembranous of arranging cooling duct, and the sufficient air that is used to cool off is provided.

The target of embodiments of the present invention is to provide the toric transmission cooling duct arrangement structure of saddle-ride type vehicle, and the suspension part that wherein is provided with the driving engine of belt-type transmission cooling duct can be easy to fastening and prevent that the weight of installation suspension from increasing.

The scheme of dealing with problems

For realizing above-mentioned target, according to the embodiment of the present invention, provide the toric transmission cooling duct arrangement structure that is provided with from the person in charge's that is responsible for backward and extends saddle-ride type vehicle downwards, wherein be responsible for rotating mode support handle.Rear frame portion comprises a pair of right back upper tube and left back upper tube and a pair of right back lower tube and left back lower tube formation, all from the rear portion be responsible for backward and extend upward, this a pair of right back lower tube and left back lower tube are set at the downside of upper back pipe and are incorporated into described upper back pipe the front end of this a pair of right back upper tube and left back upper tube.Housing box is disposed between this a pair of right back upper tube and the left back upper tube, and combustion engine hangs on the person in charge's rear portion and the cooling duct that variable v-belt drive and being used to cools off the gear shift band of toric transmission is installed.Curve is set up as the part of cooling duct and in the junction of the person in charge and upper back pipe and arranges along the person in charge and rear frame, and the inlet of cooling duct passes the sidewall that is connected to housing box between upper back pipe and the rear lower pipe.

According to this structure, cooling duct can be along being responsible for and rear lower pipe layout.

In addition, cooling duct can also be connected to the front portion of the toric transmission of combustion engine.

According to this structure, cooling duct can be lengthened out.

In addition, housing box can also be installed in main body frame by the mode of Rubber Parts buffering, and cooling duct can also be configured to by resin duct that is connected to toric transmission and the rubber catheter that is connected to resin duct and is connected to housing box.

According to this structure, the housing box of installing by the mode of Rubber Parts buffering since vibration and other reasons be moved, cooling duct also can servo-actuated should motion.

Cross section perpendicular to the axis of rubber catheter is an elliptical shape, the major axis directed in orthogonal direction of described elliptical shape, the cross section along the axis of the part of being responsible for from connecting portion to rubber catheter perpendicular to resin duct can also be circle, with the cross section perpendicular to resin duct along the axis of the part of toric transmission can also be elliptical shape, the major axis directed in orthogonal direction of described elliptical shape.

According to this structure, prevented generally that roughly cooling duct is overhanging along the direction of vehicle width, fully guaranteed the flow rate of coolant air.

The front side is provided with the toric transmission cooling duct arrangement structure that is used for from the saddle-ride type vehicle of the suspension part of being responsible for the side mounting combustion engine, wherein is responsible for the top that is set to combustion engine.Cooling duct is disposed in the top of combustion engine in spaced mode between cooling duct and the combustion engine, and the suspension part on the front side of combustion engine is set up in spaced mode in lateral plan at the back of the connecting portion of cooling duct and toric transmission housing.

According to this structure, the suspension part on the front side of combustion engine can be set near the position of being responsible for, and combustion engine can be installed to the person in charge by spaced mode between cooling duct and the combustion engine.

Cooling duct can also be connected to end face and the suspension part front side of driving engine on of toric transmission housing in the belt-type transmission chamber can be set at the end face of crankcase between the axis of the axis of main pulley and secondary pulley.

According to this structure, power unit can be fixed between the axis of the axis of main pulley and secondary pulley.

In addition, this saddle-ride type vehicle can also be provided with the housing box of the back and the upside that be arranged in combustion engine that is arranged in combustion engine, cooling duct is made of resin duct and rubber catheter, wherein resin duct is connected to toric transmission, and rubber catheter is connected to resin duct and is connected to housing box in addition.

According to this structure, resin duct and power unit become one with the quilt assembling and can be installed in the main body frame, and rubber catheter and housing box become one with the quilt assembling and can be installed in the main body frame.

The effect of invention

In the toric transmission cooling duct arrangement structure of according to the embodiment of the present invention saddle-ride type vehicle, because curve is set up as the part of cooling duct and in the junction of the person in charge and upper back pipe and arranges along the person in charge and rear frame, the inlet of cooling duct passes the sidewall that is connected to housing box between upper back pipe and the rear lower pipe, and cooling duct can be along being responsible for and rear lower pipe layout and can being lengthened out.Therefore, can supply with the sufficient air that is used to cool off, and not require needed before this air chamber.Owing to do not need to be provided with air chamber, strengthened and arranged the degree of freedom of the perimembranous of cooling duct, and strengthened the design-calculated degree of freedom in addition yet.

In addition, because cooling duct is connected to the front portion of the toric transmission housing of combustion engine, can guarantees the enough length of cooling duct, and guarantee that coolant air is fed into the belt-type transmission chamber.

In addition, because housing box is installed to main body frame and cooling duct in the mode by Rubber Parts buffering and is configured to by resin duct that is connected to toric transmission and the rubber catheter that is connected to resin duct and is connected to housing box, though cooling duct at the housing box of installing by the mode of Rubber Parts buffering because vibration or other reasons and also can servo-actuated motion subsequently under the mobile situation.Thus, require electric apparatus and other devices of the measure be used for vibrating can be configured in housing box.In addition, by the cooling duct of constructing length with two-part form the manufacturing cost such as metal pattern die and material is minimized with a plurality of curves.

Because the cross section perpendicular to the axis of rubber catheter is an elliptical shape, and the major axis directed in orthogonal direction of this elliptical shape, the cross section along the axis of the part of being responsible for from connecting portion to rubber catheter perpendicular to resin duct be a circle, the cross section along the axis of the part of toric transmission perpendicular to resin duct is an elliptical shape, and the major axis directed in orthogonal direction of this elliptical shape has prevented generally that roughly cooling duct is overhanging along the direction of vehicle width.Thus, guarantee the flow rate of coolant air, strengthened the degree of freedom of arranging the perimembranous of cooling duct along vehicle-width direction.In addition, also strengthened the design-calculated degree of freedom.In addition, the body cover that has prevented to hide the sidepiece of cooling duct is stretched out along the horizontal direction of main body.

Compare with the space of Width, requiring in the part in the space of the vertical direction of being responsible for, cross section by making cooling duct can prevent cooling duct and the person in charge, back pipe and the interference of their joint portion for circular size with the vertical direction that minimizes cooling duct.

In the toric transmission cooling duct arrangement structure of according to the embodiment of the present invention saddle-ride type vehicle, since cooling duct with keep between cooling duct and the combustion engine mode at interval be arranged in combustion engine above, suspension part on the front side of combustion engine is arranged in the back of the connecting portion of cooling duct and toric transmission housing to have at interval mode in lateral plan, and the suspension part on the front side of combustion engine can be set near position of being responsible for and the driving engine suspension that is set to the person in charge and can be minimized and lightweight.Combustion engine can be installed to the person in charge in spaced mode between cooling duct and the combustion engine, and combustion engine can be easy to be installed to the driving engine suspension.

In addition, because cooling duct is connected to the end face of toric transmission housing in strap drive device chamber, and the suspension part on the front side of combustion engine is set at the end face of crankcase between the axis of the axis of main pulley and secondary pulley, and combustion engine can be fixed between the axis of the axis of main pulley and secondary pulley.Thus, combustion engine can be supported on stable installation site.

In addition, because this saddle-ride type vehicle is provided with the housing box of the back and the upside that be arranged in described combustion engine that is arranged in combustion engine, cooling duct is made of resin duct that is connected to toric transmission and the rubber catheter that is connected to resin duct and is connected to described housing box in addition, resin duct and power unit become one with the quilt assembling and can be installed in the main body frame, and rubber catheter and housing box become one with the quilt assembling and can be installed in the main body frame.Thus, be convenient to fitting work.Because miscellaneous part is made of rubber catheter, is convenient to the connection to resin duct.

According to detailed description hereinafter, other field of applications of the present invention will become clear.But, because according to detailed description, various changes within the spirit and scope of the present invention and modification are clearly for those skilled in the art, show preferred implementation of the present invention though should understand detailed explanation and concrete example, and these explanations and example only are illustrative.

Description of drawings

According to following detailed description and accompanying drawing, can understand the present invention more completely, be the cross-sectional perspective view of optical navigation attachment with Fig. 1, given explanation and accompanying drawing only are for illustrative purposes, therefore do not limit to the present invention, wherein:

Fig. 1 is the lateral plan that illustrates according to the motor bike of an embodiment of the invention;

Fig. 2 is the upward view that the motor bike that has wherein omitted main support and miscellaneous part is shown;

Fig. 3 is the birds-eye view that the along continuous straight runs of the power unit of observing from upside is shown;

Fig. 4 illustrates the lateral plan of the main body of observing from the right side and shows the state that housing box wherein is mounted;

Fig. 5 is the birds-eye view of Fig. 4;

Fig. 6 is the in-to-in block diagram that housing box is shown;

Fig. 7 illustrates the block diagram that battery wherein is added to the state of Fig. 6;

Fig. 8 illustrates the lateral plan of wherein removing the state of housing box from Fig. 4;

Fig. 9 is the birds-eye view that the housing box of observing from upside of example is shown according to a modification of this invention;

Figure 10 shows first variation of the present invention of observing from the right side of main body; With

Figure 11 shows second variation of the present invention of observing from the right side of main body.

The specific embodiment

With reference to the accompanying drawings, below preferred implementation of the present invention will be described.

Fig. 1 illustrates the motor bike of conduct according to an example of the saddle-ride type vehicle of preferred implementation of the present invention.In the following description, the position such as front portion, rear portion, right part, left part, upside and downside of vehicle all is based on vehicle body.In the accompanying drawings, arrow FR points to the forward direction along main body, arrow R point to along main body to right, arrow UP point to along main body upward to.

Motor bike 1 is provided with main body frame 10, wherein main body frame 10 by head pipe 11, from the beginning manage 11 one of rear side of extending downward main body diagonally be responsible for 12, from being responsible for a pair of left and right sides pivot plate 13 and a pair of left and right sides rear frame 14 that extend 12 rear end downwards, each rear frame in the wherein a pair of left and right sides rear frame 14 is connected to each pivot plate 13 and is responsible for 12 rear end and this a pair of left and right sides rear frame 14 and extends upward backward and diagonally.Rear frame 14 comprises upper back, a pair of left and right sides pipe 14A and a pair of left and right sides rear lower pipe 14B, wherein pipe 14A in upper back, the left and right sides extends upward main body backward and diagonally from being responsible for 12 rear portion, and left and right sides rear lower pipe 14B connects each pivot plate 13 and each upper back pipe 14A at the downside of each upper back pipe 14A.

The handle 16 of the horizontal expansion that is used to drive is mounted via direction post 15 (steering stem) and manages 11 upside to the end.A pair of left and right sides front fork is supported by front fork 17 in rotating mode at the downside extension and the front-wheel 18 of head pipe 11.Front fender apron 38 hides the upside of front-wheel 18.

In addition, head lamp 25 is set at the place ahead of head pipe 11, and wherein the described from behind pretectum 37B of head pipe is exposed to the front portion of main body.

Power unit 50 (combustion engine) and airfilter 19 mainly are installed to is responsible for 12.The top of power unit 50 (suspension part on the front side) is fixed to driving engine suspension 50A, and wherein suspension 50A is installed to and is responsible for 12 central part along the longitudinal direction, and the rear portion of power unit is fixed to pivot plate 13 at two positions.That is, power unit 50 is suspended in the downside at the person in charge 12 rear portion.

Airfilter 19 is installed in the place ahead of power unit 50 in the underside of forward of being responsible for 12.Airfilter 19 is connected to the throttling bodies 30A that is arranged between power unit 50 and the airfilter 19 via air inlet pipe 30, and throttling bodies 30A is connected to power unit 50.Extraneous air flows into airfilter 19 and is fed into throttling bodies 30A.Throttling bodies 30A composite fuel and air and mixture gas supplied to power unit 50.

Power unit 50 is made of driving engine 51 and the variable v-belt drive on the right side of driving engine 51 52 (hereinafter being called CVT) roughly.Piston in the driving engine 51 moves and whole unit has long and flat shape on the longitudinal direction of main body along the longitudinal direction of main body.

One end of freeing pipe 31 is connected to the exhausr port of the downside that is positioned at driving engine 51.Freeing pipe 31 is arranged main body after extending downwards from exhausr port backward, and the other end of freeing pipe 31 is coupled to the silencer 32 at the back side that is arranged on power unit 50.The catalyst 33 that is used for removing respectively by redox reaction hydro-carbon, carbonic oxide, Nitrogen oxides and other materials of waste gas is set in the path of freeing pipe 31.

The foot-operated startup pedal 34 that is used for driving engine 51 is set at the central portion of the bottom of power unit 50 on the right side of main body.Be used for being set at the left side in main body of power unit 50 with the side stand 35 that the bevelled state stops.

Be used for being installed in below pivot plate 13 in turnover mode the back side of power unit 50 with the main support 36 that upright state is stopped.Main support 36 is arranged to following mode: make when main support as shown in Figure 1 stand and when stopping with upright state and when main support 36 backward and substantially on even keel extend and when not being used, main support can not disturb the rotation of riding startup pedal 34.Thus, the rider stands and can both trample when main support 36 is not used at main support 36 and starts pedal 34.

In addition, the brake pedal of being operated by rider's pin 60 is supported by the rear end of the downside of driving engine 51 and rotates.

Pivot part (pivot) 20 is set at the pars intermedia of pivot plate 13 vertical direction.But back vent 22 is supported by pivot part 20 in the mode of vertical oscillation, and trailing wheel 21 is rotated by the back support of back vent 22.Trailing wheel 21 and power unit 50 connect via unshowned drive-system (driving chain), are transferred to trailing wheel 21 from the rotational power of power unit 50 via drive-system.Back vent 22 is arranged such that swing is absorbed by the rear shock absorber between rear end that is arranged on back vent 22 and the rear frame 14 23.

The housing box 27 that has an opening at end face is installed to each front portion of left and right sides rear frame 14.The cooling duct 43 that stretches out from the end face of power unit 50 is connected to the downside of housing box 27.Cooling duct 43 is set up in order to will supply to belt-type transmission chamber 57C from the air outside of housing box 27, and belt-type transmission chamber 57C will describe in detail below.The electrical device chamber 27B that is used for holding battery 44 and other electric apparatuss also is formed on housing box 27.

Fuel Tank 28 is disposed in the rear of housing box 27.Petrolift 28A is embedded in the Fuel Tank 28, and fuel supplies to throttling bodies 30A by petrolift 28A.

Each upside of housing box 27 and Fuel Tank 28 is hidden by series type seat (tandem seat) 29.The seat 29 can utilize central part be arranged at housing box 27 the front side jointed shaft 66 and rotate.Thus, seat 29 can be opened and closed to take in article and to be used for fueling.The containment member (not shown) is set at the upper limb of opening of the upside of housing box 27, and wherein the base plate of containment member contact base 29 penetrates into inside to prevent rainwater or other chips.

Left and right sides stepwise supports (step supporting) framework and is set to rear lower pipe 14B to 26, and the left and right sides back seat pedal that is used for his/her foot of rear rider placement is installed to pedal support frame 26 to 25.

The rear mudguard 39 of the upside of covering trailing wheel 21 and each rear end that taillight 40 is installed to rear frame 14.

Motor bike 1 is hidden by the body cover 37 that mainly is formed from a resin.Particularly, body cover 37 comprise the place ahead that hides handle 16 and handle cover 37A, hide the preface of main body frame 10 front upper part lid 37B, hide the person in charge who is responsible for 12 upside cover 37C, hide the opening (not shown) of being responsible for 12 sidepiece and airfilter 19 person in charge's side cover 37D, hide the downside of main body frame 10 unshowned lower cover, hide the central portion of main body frame 10 unshowned main body central portion lid, hide main body frame 10 sidepiece unshowned main body side cover and hide the unshowned rear lateral portion lid of sidepiece at the rear portion of main body frame 10.

Space S is the recess of roughly U-shaped in lateral plan and is set for the rider and up and down crosses over (stride) for the rider during motor bike, and this space S is positioned in the place ahead of being responsible for the top of

cover

37C and 29.

Fig. 2 shows the motor bike of observing from downside 1, has wherein omitted main support 36 and miscellaneous part.

The pedal-rod 42 that extends in the both sides of the Width of vehicle be set at power unit 50 below.Be used for for the rider place his/her pedal of foot is to 41 two ends of being installed to pedal-rod 42.Pedal-rod 42 is installed to the bottom of crankcase 53 via pedal-

rod bracket

42A, 42B.

The outer shape of power unit 50 is asymmetric about the line of centers X that extends along the longitudinal direction in the person in charge 12 the main body.Particularly, the line of centers Q of driving engine 51 is positioned at the left side along vehicle-width direction of line of centers X.The mode projection that the toric transmission housing 57 of CVT52 is pushed out on the right side of main body with described housing.That is, toric transmission housing 57 is configured in driving engine 51 and reaches to the right between the brake pedal 60 that extends forward diagonally.

In Fig. 2, pedal 41 is set together with the arm 62 and the pedal 63 of pedal-rod 42, brake pedal 60, in order to trample arm 62.

Fig. 3 illustrates power unit 50 cross section of observing from upside in the horizontal direction.

Driving engine 51 is provided with: the crankcase 53 (crankshaft shell) that is arranged in the rear portion (downside of Fig. 4) of main body; Be connected to the cylinder body 54 of the front side of crankcase 53; Be connected to the cylinder head 55 of the front side of cylinder body 54; Cylinder cap 45 with the front end that is provided for hiding driving engine 51.

Crankcase 53 comprises left crankcase 53A and right crankcase 53B, and wherein left crankcase 53A and right crankcase 53B are along the Width positioned opposite of vehicle.

The crank 53D that extends along the vehicle-width direction on even keel of bent axle 53C is accommodated in the crankcase 53, and bent axle 53C is supported by crankcase 53 in rotary mode.

The foot-operated pedal 34 (shown in Figure 1) that starts is installed to crankcase 53, when the rider trample foot-operated when starting pedal 34 with start the engine 51 moment of torsion be applied to crankcase 53C, and driving engine 51 is activated.

Longitudinal direction and piston 54B that cylinder 54A is formed in the cylinder body 54 of main body slidably insert cylinder 54A.In the present embodiment, the line of centers of cylinder 54A is thought the line of centers Q of driving engine 51.

The end of connecting rod 54C is connected to piston 54B, and the other end of connecting rod 54C is connected to bent axle 53C.

In cylinder head 55, be formed with combustion chamber 55A, be communicated with combustion chamber 55A respectively and unshowned respectively admission port and exhausr port, and light-up plug 55B is inserted among the combustion chamber 55A.Throttling bodies 30A (being illustrated among Fig. 1) is connected to admission port, and freeing pipe 31 (being illustrated among Fig. 1) is connected to exhausr port.

In cylinder head 55, be provided with camshaft 55C, camshaft 55C is connected to bent axle 53C via cam-train 55D, and rotating with the mode of bent axle 53C interlocking, and gear wheel shaft opens and closes unshowned air inlet valve and blow off valve respectively.

The generator housing 56 that holds electrical generator 56A is installed to the left side of crankcase 53, and the toric transmission housing 57 that holds CVT52 is set to the right side of crankcase 53.

Toric transmission housing 57 is independent of the parts that crankcase 53 and other use and forms under the state that exists such as the oil of lubricating oil and liquid, and uses down at the state of doing (dry condition).Toric transmission housing 57 comprises: belt-type transmission housing 57A, and it hides the inboard (left side) along vehicle-width direction; With belt-type transmission lid 57B, it hides the outside (right side) along vehicle-width direction.The belt-type transmission chamber 57C that holds CVT52 is set among belt-type transmission housing 57A and the belt-type transmission lid 57B.

The right-hand member of bent axle 53 passes crankcase 53 and belt-type transmission housing 57A and extends among the 57C of belt-type transmission chamber.Because the main pulley 57D of CVT 52 is installed to bent axle 53C's, this main pulley 57D rotates according to the rotation of bent axle 53C.

The left end of bent axle 53C passes crankcase 53 and extends in the generator housing 56.Electrical generator 56A is installed to the left end of bent axle 53C.

Subband wheel shaft 57E is disposed in rear portion at crankcase 53 in the mode parallel with bent axle 53C.The right-hand member of subband wheel shaft 57E passes crankcase 53 and belt-type transmission housing 57A, and extends among the 57C of belt-type transmission chamber.The secondary pulley 57F of CVT 52 is installed to the right-hand member of subband wheel shaft 57E.

CVT 52 is equipped with main pulley 57D, secondary pulley 57F and the unshowned V-belt that is wound in main pulley 57D and secondary pulley 57F.

The a plurality of blade 57H that are used to dry are formed at the right side of main pulley 57D, air is directed among the 57C of belt-type transmission chamber from cooling duct 43 (being illustrated in Fig. 1) by these blades 57H, air among the 57C of belt-type transmission chamber from unshowned exhausr port by carrying to the outside, belt-type transmission chamber 57C is cooled.

Centrifugal clutch 58 is provided with stay bearing plate 58B and clutch plate 58C, and wherein power-transfer clutch bearing 58A is set to stay bearing plate 58B.Stay bearing plate 58B is installed to the left side of subband wheel shaft 57E and is rotated integratedly with subband wheel shaft 57E.

Reducing gear 59 is set at the left side of centrifugal clutch 58.Intermediate gear 59B and the 59C that reducing gear 59 comprises the input gear 59A that is arranged at clutch plate 58C, supported in rotating mode by crankcase 53 and be arranged at the terminal gear 59D of the output shaft 59E that supports in rotating mode by crankcase 53.Input gear 59A engages with intermediate gear 59B, and engages with terminal gear 59D with intermediate gear 59C that intermediate gear 59B coaxially is provided with.

When the revolution of stay bearing plate 58B also is an engine speed when equaling or exceeding predetermined speed, power-transfer clutch bearing 58A is owing to the increase of centnifugal force contacts clutch plate 58C.Thus, clutch plate 58C to be rotating with the mode of subband wheel shaft 57E interlocking, and output shaft 59E via input gear 59,

intermediate gear

59B and 59C, and terminal gear 59D rotate.

The left end of output shaft 59E passes left crankcase 53A, and is projected into the outside of crankcase 53, and above-mentioned transport sector (not shown) is installed to this left end.The rotation output of output shaft 59E is transferred to trailing wheel 21 via transport sector, and trailing wheel 21 is rotated.

As mentioned above, because power unit 50 according to the present invention is set at CVT 52 on the right side of crankcase 53C, the toric transmission housing 57 that holds CVT 52 is outstanding from crankcase 53 on the right side of main body.

Fig. 4 is the lateral plan of observing from the right side of main body, and it illustrates power unit 50 and is accommodated in the main body frame 10 and by cooling duct 43 with housing box 57 and is connected.Fig. 5 is the in-to-in block diagram that housing box 57 is shown, and Fig. 7 illustrates the block diagram that battery 44 is added to Fig. 6.

As shown in Figure 4, cooling duct 43 is configured to the rubber catheter 43B that is installed to the sidepiece of housing box 57 by the resin duct 43A of the sidepiece that is installed to power unit 50.And by making the inside of belt-type transmission chamber 57C (see figure 3) and the internal communication of housing box 27 via connecting portion 85 connection resin duct 43A and rubber catheter 43B.Connecting portion 85 is connected in the air tight mode to prevent that the air leak in the cooling duct 43 from going out.

As shown in Figure 4, resin duct 43A is connected to the end face of the belt-type transmission chamber 57C of power unit 50.Resin duct 43A is configured to by the first conduit part 80A, the described first conduit part 80A along the direction of the end face that is approximately perpendicular to belt-type transmission chamber 57C and along main body forward and the direction projection that makes progress diagonally, the second conduit part 80B has end face backward and the direction that diagonally make progress on the extending in main body of the mode at interval 81 along crankcase 53 with the upper end with the first conduit part 80A, the 3rd conduit part 80C (curve) along main body backward and downward diagonally direction is extended so that upper back pipe 14A and be responsible for 12 the joint portion 67 along being responsible for 12 and avoid with the rear end of the second conduit part 80B, the 4th conduit part 80D along main body backward and the direction that makes progress diagonally from the lower end extension of the 3rd conduit part 80C.

In the birds-eye view shown in Figure 5, the first conduit part 80A to the, four conduit part 80D extend at the upside of toric transmission housing 57 and on the upside of the belt-type transmission chamber 57C longitudinal direction substantial linear ground along main body.The rear end of the 4th conduit part 80D is as connecting portion 85, and rubber catheter 43B is connected to this connecting portion.Resin duct 43A by bolt 183 upper back pipe 14A and be responsible for 12 joint portion 67 near be installed to the upper back and manage 14A.

The first conduit part 80A and the second conduit part 80B are that oval-shaped mode is formed with their cross sectional shape.

As shown in Figure 5, in the first conduit part 80A, the major axis of oval cross section points to the vertical of main body, and minor axis points to vehicle-width direction.

In the second conduit part 80B, the major axis directed in orthogonal direction of oval cross section and the minor axis of oval cross section point to vehicle-width direction.

As mentioned above, point to vehicle-width direction by the minor axis that makes the first conduit part 80A and the second conduit part 80B and reduced resin duct 43A along the space that vehicle-width direction occupies, thus the space that can guarantee to be used to install other parts.By making cooling duct 43, prevented that body cover is protruding along the extending laterally of main body.

The 3rd conduit part 80C and the 4th conduit part 80D are that the mode of circle forms with their section form.Reason is to interfere for the upper back pipe 14A of the upside of avoiding laying respectively at the 3rd conduit part 80C and the 4th conduit part 80D and housing box 27, and for the bigger spatial accommodation of guaranteeing housing box 27 possibly.Thus, reduced the size of the weight of the 3rd conduit part 80C and the 4th conduit part 80D.The sectional area of the 3rd conduit part 80C and the 4th conduit part 80D is configured to equal the sectional area of the first conduit part 80A and the second conduit part 80B.

Housing box 27 is installed in via the elastic component that does not go out in the mode by the Rubber Parts buffering and is responsible for 12 end face and is installed in rear frame 14.As shown in Figure 4 and Figure 5, the inside of housing box 27 is separated into: housing 27A, and it can hold parcel (parcel) in the front side; Electrical device chamber 27B with at the back side of housing 27A has wherein held the electric apparatus such as battery 44.

As shown in Figure 5, lid 86 is set at the upside of electrical device chamber 27B in openable mode.Instrument 89 can be installed to and cover 86 upside.At length, rope 88 is mounted on and is arranged on the pin 87 that covers 86 front side and is mounted on the claw 91 that is arranged at rear side.Instrument 89 is kept by rope 88.

As shown in Figure 6, the opening 65 that rubber catheter 43B is connected to is used to install rubber catheter is formed on the downside of the sidewall of electrical device chamber 27B.As shown in Figure 7, battery 44 is installed to the upside of the opening 65 that is used to install rubber catheter.

Be used for the opening (not shown) of cable by being connected to battery 44 and miscellaneous part and be used to make the air of electrical device chamber 27B also to be formed on the sidewall of electrical device chamber 27B to the air discharge port (not shown) in the outside.Thus, the air in housing box 27 outsides is inhaled into electrical device chamber 27B, and the electric apparatus of cooling raio such as battery 44 flows into cooling duct 43 then.

Rubber catheter 43B in housing box 27 quilt assembling and with the state of this conduit and housing box 27 one by device in main body frame 10.

As shown in Figure 4, rubber catheter 43B along main body forward and downward diagonally direction extend from housing box 27, and be connected to the 4th conduit part 80D of resin duct 43A in the lower end of housing box by connecting portion 85.As shown in Figure 4, the opening 65 that is used to install rubber catheter is formed and makes opening between upper back pipe 14A and rear lower pipe 14B, and rubber catheter 43B passes between upper back pipe 14A and the rear lower pipe 14B and is connected.

Rubber catheter 43B is made by elastic rubber material and can be according to the position of housing box 27 and the position Free Transform of resin duct 43A.That is, elastic rubber material is used to rubber catheter 43B in case the vibration of stopping power unit 50 is transferred to the housing box 27 that is provided with vibration isolation structure, to keep electric apparatus.The material that is used for rubber catheter 43B is not limited to rubber, as long as this material has elasticity, and for example conduit also can be made by silicon.

Rubber catheter 43B is formed and makes its cross sectional shape for oval, and is mounted in the mode that this long axis of ellipse is pointed to the vertical direction of main body.

Fig. 8 is the lateral plan that has wherein removed housing box 27 from the state shown in Fig. 4.

Resin duct 43A quilt assembling and be assembled in the main body frame 10 in power unit 50 in the mode of conduit and power unit 50 one wherein.With the interrelation that illustrates below between power unit 50, driving engine suspension 50A and the cooling duct 43.

As shown in Figure 8, the belt-type transmission chamber 57C of power unit 50 with power unit 50 wherein be accommodated in state in the main body frame 10 from the front side of main body towards the rear side diagonal angle up tilting (tilt).In addition as shown in Figure 1, the person in charge 12 is down tilting towards the rear side diagonal angle from the front side of main body.In lateral plan, between the end face of the person in charge 12 and belt-type transmission chamber 57C, be provided with near interval the and the narrowest rear end of power unit 50.Therefore, being used on front side 90 suspension part that power unit 50 is installed be positioned at and be responsible for 12 downside, driving engine suspension 50A be responsible for 12 and the end face of belt-type transmission chamber 57C between projection.Thus, bolt 182 can be inserted in the suspension part on the front side 90 from the sidepiece of main body.

The length from belt-type transmission chamber 57C to housing box 27 by guaranteeing cooling duct 43 is long as much as possible, and cooling duct 43 is required more effectively to cool off by the in-to-in air.

From the visual angle of the cooling effectiveness of guaranteeing cooling duct 43, the first conduit part 80A of resin duct 43A and the connection location of belt-type transmission chamber 57C are arranged in the front side in main body of belt-type transmission chamber 57C.

Driving engine suspension 50A is arranged in and wherein is responsible for 12 and the approaching position of power unit 50 and be arranged in the first conduit part 80A and the rear side in main body of the connecting portion of belt-type transmission chamber 57C, thereby makes shape minimization.In addition, as shown in Figure 4, the suspension part on the front side 90 is set at the end face of crankcase 57 between the axis 57Q of the axis 57P of main pulley 57D and secondary pulley 57F along the longitudinal direction of main body.

At interval 81 (being applied with halftone point type grid (half-tone dot meshing) in Fig. 4) are set between the end face of the second conduit part 80B and belt-type transmission chamber 57C with can be by sidepiece stationary engine suspension 50A and the power unit 50 of bolt 182 from main body.

The toric transmission cooling duct arrangement structure of the saddle-ride type vehicle according to the embodiment of the present invention, owing to being set up as the part of cooling duct 43 and at the place, joint portion of the person in charge 12 and upper back pipe 14A, the 3rd conduit part 80C as curve manages the 14A layout along the person in charge 12 and upper back, and the rubber catheter 43B of cooling duct 43 passes the opening 65 that is connected between upper back pipe 14A and the rear lower pipe 14B on the sidewall that is formed at the housing box 27 that is used to install rubber catheter, cooling duct 43 can be arranged along the person in charge 12 and rear lower pipe 14B, thereby can be increased cooling duct 43.Thus, can only supply with the sufficient air that is used to cool off by cooling duct 43.Strengthen the degree of freedom of arranging the perimembranous of cooling duct, also strengthened the design-calculated degree of freedom in addition.

Because cooling duct 43 is connected to the front portion of the toric transmission housing 57 of power unit 50, the situation that is connected to central portion or rear portion with cooling duct is compared, and can guarantee fully that the air of the length of cooling duct 43 and more cooling can be fed in the belt-type transmission chamber 57.

In addition, because housing box 27 is installed in the person in charge 12 and upper back pipe 14A by the mode by the Rubber Parts buffering, and cooling duct 43 is configured to by resin duct 43A that is connected to CVT 52 and the rubber catheter 43B of opening 65 that is used to rubber catheter is installed that is connected to resin duct 43A and is connected to housing box 27, even the housing box 27 that the mode that cushions by Rubber Parts is mounted is because vibration or other reasons move, cooling duct 43 also can servo-actuated motion subsequently.Thus, require to be disposed in the housing box 27 at the battery 44 of the measure of vibrating.Be configured to two parts owing to have the cooling duct 43 of the length of a plurality of curves, can minimize the manufacturing cost that comprises metal pattern die and material.

Because the cross section perpendicular to rubber catheter 43B is oval shape, this long axis of ellipse directed in orthogonal direction wherein, the cross section along the axis of being responsible for 12 part from the connecting portion 85 that is used to connect resin duct and rubber catheter 43B perpendicular to resin duct 43A is circular, the cross section along the axis of the end face of belt-type transmission chamber 57C perpendicular to resin duct 43A is oval, this long axis of ellipse directed in orthogonal direction wherein, prevented generally that roughly cooling duct 43 from stretching out along vehicle-width direction, strengthened along the circumferential degree of freedom of vehicle-width direction cloth cooling duct 43.In addition, the body cover that can prevent to hide the sidepiece of cooling duct 43 is stretched out along the horizontal direction of main body.

Compare with space along vehicle-width direction, requiring in the part of being responsible for 12 space vertically, cross section by making cooling duct 43 is circular size with the vertical direction that minimizes cooling duct 43, can prevent cooling duct 43 and be responsible for 12, upper back pipe 14A and their joint portion 67 interfere.

In addition, can make the extraneous air that supplies among the 57C of belt-type transmission chamber by with the electrical device chamber 27B that supplies to housing box 27, can also cool batteries 44.

Because awkward silence at a meeting conduit 43 is disposed in the top of power unit 50 in the mode that is provided with interval 81 and is arranged in the end face of the belt-type transmission chamber 57 of power unit 50, suspension part on the front side 90 of power unit 50 is arranged to the back side of the connecting portion that is connected to toric transmission housing 57 of cooling duct 43 in the mode that is provided with interval 81 in lateral plan, suspension part on the front side of power unit 50 can be set at main body near being responsible for 12, along backward with the tilting position of downward direction, can minimize to be set to and be responsible for 12 driving engine suspension 50A with lightweight.Power unit 50 can by be provided with at interval 81 mode on the front side 90 between cooling duct 43 and the power unit 50 the suspension part and be mounted by bolt 182 from the sidepiece of main body, even and power unit 50 and the assembling of cooling duct 43 quilts, also can easily power unit 50 be installed to driving engine suspension 50A.

Because cooling duct 43 is connected to the end face of belt-type transmission chamber 57C, suspension part on the front side 90 of power unit 50 is set to the end face between the axis of the axis of main pulley 57D and secondary pulley 57F of crankcase 53, and power unit 50 can be supported on stable installation site.

In addition, because motor bike 1 is equipped with the housing box 27 of the upside of the back side that is arranged in power unit 50 and power unit 50, cooling duct 43 is configured to by resin duct 43A that is connected to CVT 52 and the rubber catheter 43B that is connected to resin duct 43A and is connected to housing box 27, and the conduit 43A that is made of resin becomes one with power unit 50 and assembles and can be installed in the main body frame 10 with quilt.Rubber catheter 43B and housing box 27 become one with the quilt assembling and can be installed in the main body frame 10.Thus, be convenient to carry out fitting work.Because other part is configured to by rubber catheter 43B, is convenient to be connected to resin duct 43A.

Embodiments of the present invention have been described, yet, allow various variation and change based on technical conceive of the present invention.

Fig. 9 illustrates birds-eye view as the housing 270 of variation from what upside was observed.

Housing 270A and electrical device chamber 270B are by partition wall 120 separations that are used for the inside of housing box is divided into front and rear.Containment member 121 is set to the edge of upper opening of housing 270A with by making containment member contact and prevent that rainwater, extraneous air and other chips from entering housing 270A with the base plate of seat.Simultaneously, there is not containment member to be set to the edge of the upper opening of electrical device chamber 270B.Thus, extraneous air W is easy to enter electrical device chamber 270B between seat 29 and housing box 27, and is easy to supply to cooling duct 43.

In the present embodiment, the second conduit part 80B of resin duct 43A along the end face of the crankcase 53 of power unit 50 along main body backward and the direction that makes progress diagonally extend.Then, the present invention is not limited to above-mentioned situation, as long as be provided with between the end face of resin duct 43A and power unit 50 at interval.For example, as shown in figure 10,181 also can be formed between the end face and resin duct 43A of crankcase 53 at interval, make the first conduit part 180A be responsible for 12 near projection and along be responsible for 12 from the rear end of the first conduit part 180A along main body backward and downward diagonally direction extend.Thus, when being installed to driving engine suspension 50A when power unit 50 is installed to the state of power unit 50 temporarily with resin duct 43A wherein under, bolt 180 can insert by 181 sidepieces from main body at interval.

In addition, because resin duct 143A is lengthened out and whole cooling duct 143 can be lengthened out, can cool off the air of being supplied with effectively.

In addition, as shown in figure 11, resin duct 243A also can be from the front projection of power unit 50.At length, the length of whole cooling duct 243 (being used to make the length of air flows) can form inlet 283 by the sidepiece at belt-type transmission chamber 57C and resin duct 243A is extended more from entering the mouth 283 projections.Resin duct 243A in the front side of main body from enter the mouth 283 projections and along the front side of belt-type transmission chamber 57C along main body upward after extending, resin duct along the end face of belt-type transmission chamber 57C along main body backward and the direction that makes progress diagonally extend.In this structure, power unit 50 can also be installed to driving engine suspension 50A by the interval 81 between resin duct 243A and the belt-type transmission chamber 57C, and by making whole cooling duct 243 lengthenings can improve cooling effectiveness.

In addition, as shown in figure 11, when cooling duct 243 extends to the front side of belt-type transmission chamber 57C, be used for also can being set at the front end of belt-type transmission chamber 57C by the support portion 284 of belt-type transmission chamber 57C support cooling duct 243.Thus, even cooling duct 243 is lengthened out on the whole, cooling duct 243 also can be mounted in the mode of not vibrated.

The present invention has been described thus, and clearly the present invention can change in several ways.Such variation does not think to have departed from the spirit and scope of the present invention, and such being included in the scope of claims for the tangible variation intention of those skilled in the art.

Claims

1. the stepless change cooling duct arrangement structure of saddle-ride type vehicle is characterized in that described structure comprises:

Be responsible for, it extends backward and downwards from the head pipe of support handle rotationally;

Rear frame portion, it is made of a pair of right back upper tube and left back upper tube and a pair of right back lower tube and left back lower tube, all from the described person in charge's rear portion backward and extend upward, described a pair of right back lower tube and left back lower tube are set at the downside of described upper back pipe and are incorporated into described upper back pipe the front end of described a pair of right back upper tube and left back upper tube;

Housing box, it is disposed between described a pair of right back upper tube and the left back upper tube;

Combustion engine, it is installed from the variable v-belt drive of the described person in charge's rear suspension; With

Cooling duct, it is used to cool off the gear shift band of toric transmission;

Wherein, a curve being set arranges along the described person in charge and rear frame as the part of described cooling duct and in the junction of the described person in charge and described upper back pipe; With

The inlet of described cooling duct passes the sidewall that is connected to described housing box between described upper back pipe and the described rear lower pipe.

2. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 1 is characterized in that, described cooling duct is connected to the front portion of the toric transmission housing of described combustion engine.

3. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 1 is characterized in that, described housing box is installed in main body frame in the mode by the Rubber Parts buffering; With

Described cooling duct is made of resin duct and rubber catheter, and described resin duct is connected to described toric transmission, and described rubber catheter is connected to described resin duct and is connected to described housing box.

4. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 2 is characterized in that, described housing box is installed in main body frame in the mode by the Rubber Parts buffering; With

Described cooling duct is made of resin duct and rubber catheter, and described resin duct is connected to described toric transmission, and described rubber catheter is connected to described resin duct and is connected to described housing box in addition.

5. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 1 is characterized in that, is elliptical shape perpendicular to the cross section of the axis of described rubber catheter, the major axis directed in orthogonal direction of described elliptical shape;

The cross section along the described person in charge's the axis from connecting portion to the part of described rubber catheter perpendicular to described resin duct be a circle; With

The cross section along the axis of the part of described toric transmission perpendicular to described resin duct is an elliptical shape, and the major axis of described elliptical shape points to described vertical direction.

6. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 2 is characterized in that, is elliptical shape perpendicular to the cross section of the axis of described rubber catheter, the major axis directed in orthogonal direction of described elliptical shape;

7. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 3 is characterized in that, is elliptical shape perpendicular to the cross section of the axis of described rubber catheter, the major axis directed in orthogonal direction of described elliptical shape;

8. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 4 is characterized in that, is elliptical shape perpendicular to the cross section of the axis of described rubber catheter, the major axis directed in orthogonal direction of described elliptical shape;

9. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 1 is characterized in that, comprising:

The suspension part, it is positioned at the front side and is used for hanging described combustion engine from the described person in charge, and described suspension part is set at the top of combustion engine,

Wherein said cooling duct by be arranged at the interval between described cooling duct and the described combustion engine described combustion engine above; With

Described suspension part on the front side of described combustion engine is arranged in the back of the connecting portion of described cooling duct and described toric transmission housing in the mode that has the interval in lateral plan.

10. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 9 is characterized in that, described cooling duct is connected to the end face of the described toric transmission housing in strap drive device chamber; With

Be set at the end face of crankcase between the axis of the axis of main pulley and secondary pulley in the described suspension part on the front side of described combustion engine.

11. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 9 is characterized in that, described saddle-ride type vehicle is provided with the housing box of the back and the upside that be arranged in described combustion engine that is arranged in described combustion engine in addition; With

12. the toric transmission cooling duct arrangement structure of saddle-ride type vehicle according to claim 10 is characterized in that, described saddle-ride type vehicle is provided with the housing box of the back and the upside that be arranged in described back that is arranged in described combustion engine in addition; With