CN1951755A - Motorcycle - Google Patents
Motorcycle Download PDFInfo
- Publication number
- CN1951755A CN1951755A CNA2006101409336A CN200610140933A CN1951755A CN 1951755 A CN1951755 A CN 1951755A CN A2006101409336 A CNA2006101409336 A CN A2006101409336A CN 200610140933 A CN200610140933 A CN 200610140933A CN 1951755 A CN1951755 A CN 1951755A
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- CN
- China
- Prior art keywords
- mentioned
- change
- speed box
- box case
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Arrangement Of Transmissions (AREA)
Abstract
The present invention provides a motorcycle with a simple structure capable of reducing its cost. The motorcycle 1 comprises an engine body 11; a transmission case 12 connected to the engine body 11 and extending to a rear side of the vehicle; and a belt type transmission 13 stored in the transmission case 12 in which a primary sheave 30 arranged at an output shaft side of the engine body 11 and a secondary sheave 31 arranged at a rear wheel axle side are connected by a belt 32, a cover 37 for covering an outer side surface of the transmission case 12 is attached to the transmission case 12 in the state that a clearance is provided between the outer side surface of the transmission case 12 and it and a ventilation passage 39 for circulating traveling air is formed by the cover 37 and the outer side surface of the transmission case 12.
Description
Technical field
The present invention relates in the change-speed box case that rearward extends from engine main body, take in the motor bike of belt change-speed box, more particularly, relate to the cooling of above-mentioned change-speed box case.
Background technology
As the cooling mechanism of the change-speed box case of taking in the belt change-speed box, for example there is the Japanese documentation spy to open the device of being put down in writing in the flat 6-272750 communique.In this installs in the past, be provided with case lid at the lateral surface of change-speed box case, and between this case lid and change-speed box case, be formed with path of cool air.In addition, crank shaft extends to path of cool air, and on the extended end of this crank shaft cooling fan is installed.
In above-mentioned cooling mechanism in the past,, therefore has the high advantage of cooling power owing to adopt by the mode of cooling fan with extraneous air forced air supply in path of cool air.But, owing to adopt the structure that cooling fan is set in end of crank, therefore crank shaft need be extended to path of cool air, also need cooling fan and crank shaft extended end are carried out the bearing that axle supports.Thereby there is the problem that number of components increases, structure complicates, cost uprises.
Summary of the invention
The present invention makes in view of above-mentioned problem in the past, its purpose be to provide a kind of simple in structure, and can suppress the motor bike of cost.
Motor bike of the present invention comprises: engine main body; The change-speed box case that links to each other with this engine main body and extend to rear view of vehicle; And the belt change-speed box, this belt change-speed box is incorporated in the described change-speed box case, and the elementary pulley that is configured in output shaft one side of above-mentioned engine main body couples together with band with the secondary pulley that is configured in hind axle one side; Described motor bike is characterised in that, on above-mentioned change-speed box case, with and change-speed box case lateral surface between leave state at interval the cover that covers change-speed box case lateral surface be installed, by this cover and the formation of the change-speed box case lateral surface air flue of wind of travelling that circulates.
According to motor bike of the present invention, cool off the change-speed box case owing to can be used in, thereby do not need Air Blast fan by the wind that travels that circulates in change-speed box case lateral surface and the hood-shaped air flue that becomes, can make simple in structure thus.
Description of drawings
Fig. 1 is the left view of the motor bike of one embodiment of the present invention;
Fig. 2 is the sectional plane expansion drawing of the engine unit of above-mentioned embodiment;
Fig. 3 is the left view of the change-speed box case part of above-mentioned engine unit;
Fig. 4 is a lateral plan of observing the cover cap of above-mentioned engine unit from the inboard;
Fig. 5 is from the observed lateral plan in the outside of above-mentioned cover cap;
Fig. 6 is the upward view of above-mentioned cover cap;
Fig. 7 is the cross-sectional plan view of above-mentioned cover cap;
Fig. 8 is the cross section front view of above-mentioned case lid and cover cap.
The specific embodiment
Embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 to Fig. 8 is the instruction diagram that is used to illustrate the motor bike of one embodiment of the present invention.Said all around in the present embodiment is meant all around that is sitting in when observing on the vehicle seat.
Among the figure, the 1st, scooter type motor bike, it has following general structure.Front fork 3 can about turn to by a piping support of low bone type vehicle frame front end.Axle is supported with front-wheel 4 on the lower end of this front fork 3, and the upper end is equipped with steering handle 5.In addition, the engine unit 6 of unit oscillating can be supported by the substantial middle portion of above-mentioned vehicle frame with swinging up and down.Trailing wheel 7 is supported by the rearward end of this engine unit 6, and vehicle seat 8 is installed above this engine unit 6.
In addition, surrounded by front shroud 9a around the above-mentioned front fork 3, surrounded by back cover 9b around the downside of above-mentioned vehicle seat 8.Between this back cover 9b and above-mentioned front shroud 9a, be formed with the 9c of pedal portion of low floor.In addition, the downside at above-mentioned vehicle seat 8 is formed with the containing box 9d that opens and closes by this vehicle seat 8.
In addition, the 10th, the front car light that disposes near front fender apron 4a.The 41st, be configured in the kickpedal on the sidewall of aftermentioned change-speed box case 12, the 42nd, be configured in the main support on the bottom of engine main body 11 described later, 43 are mounted in the side stand on the vehicle frame.
Above-mentioned engine unit 6 comprises: engine main body 11, link to each other with this engine main body 11 and the change-speed box case 12 that extends back and be accommodated in belt change-speed box 13 in this change-speed box case 12.
Above-mentioned engine main body 11 comprises: the crankcase 14 of left and right sides partition type, link to each other with the antetheca of this crankcase 14 and cylinder band 15 that approximate horizontal ground forwards extends and be combined in this cylinder band 15 before close cylinder cover 16 on the face.Dispose the piston 17 that can be free to slide in the cylinder diameter 15a in being formed at said cylinder body 15, this piston 17 is connected with the crank pin 19a of crank shaft 19 by connecting rod 18.
In addition, dispose the valve device of driven for opening and closing air suction valve, blow off valve in the said cylinder lid 16.At the left end of the camshaft 16a of this valve device, be connected with the pump shaft 20a of cooling water pump 20 according to the mode that can rotate together.16b is the head-shield that covers the front opening of cylinder cover 16, the 21st, and light-up plug.
In addition, on the 19b of the right part of above-mentioned crank shaft 19 flywheel type permanent-magnet generator 22 is installed, at its lateral surface Air Blast fan 23 is installed, these parts are incorporated in the right-hand part 14a of crankcase 14.In addition, at the outside of above-mentioned Air Blast fan 23 equipped with radiator 24.In engine operation process, come cooling radiator 24 by the extraneous air that sucks by Air Blast fan 23.
Observe in the vehicle side, above-mentioned change-speed box case 12 is the approximate ellipsoidal that rearward extends through vehicle left side from the left part of above-mentioned crankcase 14.This change-speed box case 12 comprises: the box main body 25 integrally formed and that rearward extend with the left side 14b of above-mentioned crankcase 14; With the case lid 26 on the opening 25a that is installed in this box main body 25.In addition, 28 airfilters that are mounted on the upper wall of change-speed box case 12.
From the side, above-mentioned box main body 25 is the dish-like of sub-elliptical, and, integrally formed being useful on of its upper front end this engine unit 6 is bearing in engine suspension shaft sleeve part 25a on the vehicle frame.In addition, at the integrally formed bumper axle sleeve 25b of portion of the upper rear end of above-mentioned box main body 25, damper unit 27 is between this hub portion 25b and vehicle frame.
Above-mentioned case lid 26 is the dish of the sub-elliptical identical with above-mentioned box main body 25, and it has surrounding wall portion a and bottom wall portion b, and this bottom wall portion b is equivalent to the lateral surface of change-speed box case of the present invention.This case lid 26 is located by knock pin 29a, releasably is installed on the box main body 25 by a plurality of bolt 29b.In addition, above-mentioned case lid 26 has anterior 26a and rear portion 26b, and this rear portion 26b is than the inboard of anterior 26a deflection overall width direction, and forms end difference 26c in the two boundary portion.Observe from the vehicle side, this end difference 26c forms has the 26c ' of vertical edge portion and the 26c of hypotenuse portion " approximate trapezoid; wherein, the 26c ' of this vertical edge portion is positioned at the substantial middle portion on the short transverse, the 26c of this hypotenuse portion " from the upper and lower end of the 26c ' of this vertical edge portion to oblique rear extension.
Above-mentioned change-speed box 13 has: be installed in elementary pulley 30 on the left part 19c of above-mentioned crank shaft 19, be configured in the secondary pulley 31 of trailing wheel 7 one sides and be wrapped in V-belt 32 on these two pulleys 30,31.
Above-mentioned elementary pulley 30 has: be fixed on the dead sheave 30a on the above-mentioned crank shaft 19; With the movable sheave 30b that is configured on the crank shaft direction, to move and together rotates with crank shaft 19.In addition, on the face of engine center one side of above-mentioned movable sheave 30b, dispose and under action of centrifugal force, drive the driver train 30c that this movable sheave 30b moves to axial left.
In addition, above-mentioned secondary pulley 31 is furnished with dead sheave 31a and movable sheave 31b, described dead sheave 31a output shaft 33 relatively rotates and can not be installed in movably in the axial direction on the output shaft 33, and described movable sheave 31b can move in the axial direction and together be installed in rotatably on the shaft sleeve part of this dead sheave 31a with this dead sheave 31a.In addition, be connected with the counterweight 31d of centrifugal clutch 31c on the said fixing pulley 31a, the drum 31e of this centrifugal clutch 31c is fixed on the above-mentioned output shaft 33.This drum 31e is the bottom surface and outwards expand into the bowl-shape of sphere shape.The rear portion of above-mentioned case lid 26 26b, be formed with the cooresponding part of drum 31e of above-mentioned centrifugal clutch 31 and cover bulge 26d, the bottom shape of this lid bulge 26d and this drum 31e correspondingly is dome shape and outwards expands.When above-mentioned secondary pulley 31 reached predetermined rotational speed, above-mentioned centrifugal clutch 31c connected, thereby rotation that will this secondary pulley 31 passes to output shaft 33.
In addition, the rearward end at above-mentioned box main body 25 is formed with reducing gearbox 34.This reducing gearbox 34 is made of well gear incorporating section 25c and incorporating section lid 34a leak tightness, described gear incorporating section 25c is integrally formed on the above-mentioned box main body 25, and described incorporating section lid 34c is installed on the opening of overall width direction inboard of this gear incorporating section 25c.The latter half of aft end face from box main body 25 of said gear incorporating section 25c is rearward outstanding, and is partial to overall width direction inboard with respect to the opening 25a of this box main body 25.
In above-mentioned reducing gearbox 34, taken in reduction gear 35.This reduction gear 35 with the rotation of above-mentioned output shaft 33 from being integrally formed in miniature gears 33a on the output shaft 33 via the intermediate gear of not shown tween drive shaft and output gear 36a and pass to hind axle 36.Above-mentioned trailing wheel 7 splines are entrenched on the hind axle 36, and the rotation of above-mentioned output shaft 33 is slowed down by above-mentioned reduction gear 35, and passes to trailing wheel 7.
Leave the cover cap 37 of compartment of terrain configuration as the cover that covers change-speed box case lateral surface of the present invention on the 26b of the rear portion of above-mentioned case lid 26, it releasably is installed on the box main body 25 by the bolt 29c that connects above-mentioned case lid 26.Described cover cap 37 is formed from a resin, and observes from the vehicle side, and the shape of the rear portion 26b of itself and above-mentioned case lid 26 is basic identical, and its front edge portion forms approximate trapezoid along above-mentioned end difference 26c.In addition, the anterior 37a of this cover cap 37 and the anterior 26a of above-mentioned case lid 26 are approximately continuous, are formed with the lid bulge 26d of corresponding case lid 26 at the rear portion and the cover bulge 37b that expands to the outside.In addition, be formed with opening 37d on the rear wall 37c of cover cap 37, follow this opening 37d part, guide part 37e forms the frame shape.In addition, form direction protrusion 37f in the mode that connects above-mentioned rear wall 37c and guide part 37e.37h, 37i are the inserting holes of above-mentioned bolt 29c, 29d.
In addition, formed the 37g of gear cover portion at the and then above-mentioned guide part 37e of the rearward end of above-mentioned cover cap 37.The 37g of this gear cover portion is partial to overall width direction inboard than above-mentioned guide part 37e, and covers the rear protrusion of the gear incorporating section 25c of above-mentioned box main body 25.Sound absorption parts 40 are between this gear incorporating section 25c and the 37g of gear cover portion, and these sound absorption parts 40 stick on the inside face of cover portions 37g.The 48th, be screwed on the pouring orifice cap on the gear incorporating section 25c of above-mentioned box main body 25,48a is formed in the cap inserting hole on the 37g of gear cover portion of above-mentioned cover cap 37.
The air introducing port 39a of above-mentioned air flue 39 is formed on the front lower ends portion of cover cap 37, towards the road surface, and substantially to oblique front openings, air outlet 39b from the opening 37d of cover cap 37 to the rear view of vehicle opening.Here, above-mentioned air introducing port 39a is positioned near the part of V-belt 32 by elementary pulley 30, in other words, the slack-side part 32 of V-belt 32 when above-mentioned air introducing port 39a is positioned at and quickens ' near.
Above-mentioned slack-side partly is meant the lower portion of the straight line at the center that connects elementary pulley 30, secondary pulley 31, the i.e. part that does not act on propulsive effort of V-belt 32.In addition, the upper portion of straight line that connects the pulley center of above-mentioned V-belt 32 is called as advancing side.
In addition, the bolt 29c that is used to install above-mentioned cover cap 37 is configured in the position of departing from above-mentioned air flue 39, ventilates thereby avoided hindering.Though the bolt 29d that is used to install cover cap 37 is positioned at the air outlet 39b of above-mentioned air flue 39,, therefore can not hinder ventilation because this air outlet 39b has than large tracts of land, and only has the head of bolt 29d to be projected in the air flue.
Here, Fig. 4 is the scheme drawing of the stickup face when above-mentioned sound absorption parts 38 are sticked on the inside of cover cap 37.The cover cap 37 that is pasted with the sound absorption parts 38 of present embodiment is not the plane, but three-dimension curved surface, therefore, if paste the sound absorption parts of a sheet, then manufacturability is low.Therefore as shown in Figure 4, be divided into a plurality of stickup face 38b～38f, paste then pasting the sound absorption parts of face.By interfering with each other of the sound absorption parts cut apart, gap a, the b, the c that are located at each cutting part border almost are eliminated.In addition, also can not cut apart above-mentioned sound absorption parts, but paste the sound absorption parts removing on whole of air flue part.
In the present embodiment, when travelling, shown in arrowed curve A among Fig. 1, the part of the wind that travels flows through between 9c of pedal portion and the road surface, running air inlet 39a below being formed on change-speed box case 12 is imported into air flue 39, and discharges from air outlet 39b.
Like this, in the present embodiment, because cover cap 37 is installed, and be formed on the travel air flue 39 of wind of circulation between this cover cap 37 and the case lid 26 on case lid 26, therefore, do not need specially to be provided with the Air Blast fan wind that can will travel and import in the air flue.Thus, can be by cover cap 37 with the sound in the simple STRUCTURE DEPRESSION change-speed box case 12 to external leaks, and can utilize the wind that travels to cool off change-speed box case 12.Consequently, the temperature with 32 that can suppress in the change-speed box case 12 rises, thereby can prolong the life-span of band.
In addition, owing between above-mentioned case lid 26 and cover cap 37, accompany sound absorption parts 38, and form above-mentioned air flue 39 by on these sound absorption parts 38, forming otch 38a, therefore, can cool off the desired part of case lid 26 by the circulation wind that travels by improving above-mentioned notch geometry, thereby the temperature that can suppress in the change-speed box case 12 rises, and can further reduce the sound that above-mentioned change-speed box case 12 sends reliably by sound absorption parts 38.
Since the running air inlet 39a of above-mentioned air flue 39 be positioned at above-mentioned with 32 slack-side parts 32 by above-mentioned elementary pulley 30 ' near, therefore, can by the wind that travels cool off because of propulsive effort easily the above-mentioned band portion 32 that rises of temperature ', also can prolong life-span of band thus.
In addition, because above-mentioned running air inlet 39a is relative with the road surface, opening slightly forwards also, therefore, can be by the air flue 39 importings wind that more travels.Promptly, shown in the motor bike 1 of present embodiment, for the situation that the motor bike of engine unit 6 is installed in the part of being surrounded by the car body cover at pedal portion 9c rear, shown in the arrowed curve A of Fig. 1, travel wind mainly below the 9c of pedal portion and circulate between the road surface.Therefore, by running air inlet 39a being formed relative and, can effectively the wind that travels being imported in the air flue 39 slightly to open front with the road surface.
In addition, in the present embodiment, when making gear incorporating section 25c from change-speed box case 12 when rearward outstanding, this gear incorporating section 25c forms deflection overall width direction inboard, in above-mentioned cover cap 37, cover the 37g of the gear cover portion deflection overall width direction inboard of gear incorporating section 25c, therefore, the processing transfiguration of vehicle is easy.
That is, if gear incorporating section 25c is outstanding to rear view of vehicle, then when handling vehicle, protrusion is interfered processor's foot etc. easily.In the present embodiment, because therefore gear incorporating section 25c and the 37g of gear cover portion deflection overall width direction inboard can suppress the above-mentioned interference problem.
In addition, when forming above-mentioned air flue 39, the rear portion 26b of case lid 26 is by end difference 26c deflection overall width direction inboard, cover cap 37 only covers this rear portion 26b, and the front portion of this cover cap 37 is formed and approximately continuous of the anterior 26a of case lid 26, therefore, can when cover cap 37 is set, avoid change-speed box case 12 single-piece overall width direction sizes to become big, can make the whole width of vehicle become compact.In addition, when cover cap 37 is set,, then can have problem uncomfortable, poor designs if cover cap is outstanding to the overall width direction outside.But in the present embodiment,, therefore can avoid the problem in the above-mentioned design because the anterior 26a of cover cap 37 and case lid 26 presents continuous face.
Because the hold-down bolt 29c that above-mentioned cover cap 37 is installed on the change-speed box case 12 is configured on the position of departing from above-mentioned air flue 39, therefore, can avoid increasing because of hold-down bolt 29c the problem of windage.
In addition, in the above-described embodiment, the situation that the change-speed box case is divided into box main body and case lid on the overall width direction is illustrated, but Applicable scope of the present invention is not subjected to the influence of segmenting structure of change-speed box case etc., for example applicable to situation about cutting apart up and down yet.In addition, in the above-described embodiment scooter type motor bike is illustrated, but the present invention goes for scooter type motor bike in addition.
Claims (9)
1. a motor bike comprises: engine main body; The change-speed box case that links to each other with this engine main body and extend to rear view of vehicle; And the belt change-speed box, this belt change-speed box is incorporated in the described change-speed box case, and the elementary pulley that is configured in output shaft one side of above-mentioned engine main body is coupled together with band with the secondary pulley that is configured in hind axle one side; Described motor bike is characterised in that,
On above-mentioned change-speed box case, with and change-speed box case lateral surface between the state that leaves at interval the cover that covers change-speed box case lateral surface is installed, by this cover and the formation of the change-speed box case lateral surface air flue of wind of travelling that circulates.
2. motor bike as claimed in claim 1, it is characterized in that, accompany inhibition from the leak sound absorption parts of sound of change-speed box case between above-mentioned change-speed box case lateral surface and cover, above-mentioned air flue forms by being formed on the space that the notch on these sound absorption parts, above-mentioned change-speed box case lateral surface and cover surrounded.
3. motor bike as claimed in claim 1 is characterized in that, the running air inlet of above-mentioned air flue is positioned near the slack-side part of above-mentioned band when quickening.
4. motor bike as claimed in claim 1 is characterized in that the running air inlet of above-mentioned air flue is relative with the road surface.
5. motor bike as claimed in claim 1 is characterized in that, in above-mentioned change-speed box case, the gear incorporating section is rearward outstanding and be partial to overall width direction inboard from this change-speed box case, and in above-mentioned cover, the gear cover portion that covers the said gear incorporating section rearward extends.
6. motor bike as claimed in claim 1 is characterized in that, the installing component that above-mentioned cover is installed on the change-speed box case is configured on the position of departing from above-mentioned air flue.
7. motor bike as claimed in claim 1 is characterized in that, above-mentioned cover only covers the part of above-mentioned change-speed box case lateral surface.
8. motor bike as claimed in claim 7 is characterized in that, the remainder of above-mentioned cover and above-mentioned change-speed box case lateral surface is the approximate continuity face.
9. motor bike as claimed in claim 8 is characterized in that, the rear portion of above-mentioned change-speed box case lateral surface is than anterior deflection overall width direction inboard, and above-mentioned cover covers the rear portion of above-mentioned change-speed box case lateral surface, and is the approximate continuity face with the front portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005302071 | 2005-10-17 | ||
| JP2005302071A JP2007106382A (en) | 2005-10-17 | 2005-10-17 | Motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1951755A true CN1951755A (en) | 2007-04-25 |
| CN100593003C CN100593003C (en) | 2010-03-03 |
Family
ID=38032578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610140933A Active CN100593003C (en) | 2005-10-17 | 2006-10-17 | Motorcycle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2007106382A (en) |
| CN (1) | CN100593003C (en) |
| TW (1) | TW200728131A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012245795A (en) | 2009-09-25 | 2012-12-13 | Yamaha Motor Co Ltd | Two-wheeled motor vehicle |
| JP2013099970A (en) * | 2011-10-17 | 2013-05-23 | Yamaha Motor Co Ltd | Two-wheeled motor vehicle |
| CN107848411B (en) * | 2015-08-21 | 2020-06-16 | 本田技研工业株式会社 | Power unit for saddle-ride type vehicle |
| JP2018140732A (en) * | 2017-02-28 | 2018-09-13 | ヤマハ発動機株式会社 | Saddle-riding type vehicle |
-
2005
- 2005-10-17 JP JP2005302071A patent/JP2007106382A/en not_active Withdrawn
-
2006
- 2006-09-12 TW TW095133702A patent/TW200728131A/en unknown
- 2006-10-17 CN CN200610140933A patent/CN100593003C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN100593003C (en) | 2010-03-03 |
| TW200728131A (en) | 2007-08-01 |
| TWI301464B (en) | 2008-10-01 |
| JP2007106382A (en) | 2007-04-26 |
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| C14 | Grant of patent or utility model | ||
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