CN100590024C - Power unit for vehicle - Google Patents
Power unit for vehicle Download PDFInfo
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- CN100590024C CN100590024C CN200610094026A CN200610094026A CN100590024C CN 100590024 C CN100590024 C CN 100590024C CN 200610094026 A CN200610094026 A CN 200610094026A CN 200610094026 A CN200610094026 A CN 200610094026A CN 100590024 C CN100590024 C CN 100590024C
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- power unit
- combustion engine
- transmission system
- axle
- suspended portion
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- Arrangement Of Transmissions (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The power unit for vehicle is equipped with an engine case 21 to emit a rotational driving force from a crank shaft 26 installed parallel with a rear wheel shaft 33 whereto rear wheels 4L and 4R are connected and a transmission case 22 accommodating the transmission device 37 to transmit the rotational driving force of the crank shaft 26 to the rear wheel shaft 33 through a counter-shaft 34 installed parallel with the rear wheel shaft 33, and power unit 6 mounted on a body frame 2 by a hanger member 12 is configured so that the engine case 21 and the transmission case 22 are installed detachably, the hanger member 12 is installed in the second 68 and the third mounting part 69 of the engine case 21 and the transmission case 22, and that the engine case 21, the transmission case 22, and thehanger member 12 are coupled together by the same coupling member 73 .
Description
Technical field
The present invention relates to a kind of Vehicular power unit, it has combustion engine and transmission system, and is equipped on dillies such as automatic three-wheel vehicle.
Background technology
In dillies such as automatic three-wheel vehicle, known have a following structure, and promptly suspension is constituted and be provided with the power unit of drive wheel by combustion engine and transmission system on the vehicle body frame with wheel (front-wheel) that travel.In this case, power unit is suspended on suspended portion on the vehicle body frame and in the bottom of power unit, is connected in transmission system (speed change casing) (reference example as, patent documentation 1).
[patent documentation 1] spy opens the 2001-322440 communique
Yet, when suspended portion is incorporated into transmission system, have to carry out assemble the work of power unit and suspended portion is incorporated into the work of assembled power unit, so there is the problem that increases assembling man-hour and part number of packages (combination member) in conjunction with combustion engine and transmission system.
Summary of the invention
The present invention forms in view of such problem, and purpose is to provide a kind of Vehicular power unit, its with identical combination member to combustion engine, transmission system, and suspended portion carry out combination.
In order to solve described problem, Vehicular power unit of the present invention constitutes to have: combustion engine (for example, engine shell 21 in the embodiment), it exports rotary driving force from bent axle, this bent axle is arranged at abreast and (for example is connected with drive wheel, trailing wheel 4L, 4R in the embodiment) live axle (for example, the hind axle in the embodiment 33) on; Transmission system (for example, in embodiment the speed change casing 22 that contains transmission system 37), its rotary driving force with bent axle passes to live axle via the countershaft that is arranged at live axle abreast, and, this Vehicular power unit by an end is installed on the car body suspended portion (for example, suspension member 12 in the embodiment) (for example is installed on car body, vehicle body frame 2 in the embodiment) on, wherein, this power unit has: the combustion engine that is made of cylinder head and engine shell; With the transmission system that is contained in the speed change casing, combustion engine and transmission system loading and unloading constitute freely, in the joint portion of combustion engine and transmission system (for example, second and third installation portion 68,69 in the embodiment) goes up the configuration suspended portion, and by identical combination member (for example, bolt 73a in the embodiment and nut 73b) with combustion engine, transmission system and suspended portion combination.
At this moment, preferred suspension portion has: be installed in the main part (for example, front end components 12a in the embodiment and rear end member 12b) on the car body; With two combination members (for example, the coupling member 12c in the embodiment) of main part, combustion engine and transmission system combination, the left and right sides portion of combination member clamping combustion engine and transmission system and combination.
In addition, preferred combustion engine has food tray portion in the in-to-in bottom, is used to store lubricating oil, and suspended portion is configured in the below of combustion engine.
If constitute Vehicular power unit of the present invention as described above, then can shared assembling combustion engine and the combination member of transmission system and suspended portion is combined in the combination member of institute's stack-mounted power unit, therefore, can reduce assembling man-hour, and, can reduce the part number of packages.
In addition,, can improve binding force, and the counter-force of self-powered driving wheel is delivered to the car body side effectively in the future, can improve and take sensation by by two combination member clamping power units that constitute suspended portion.
Also have, when being formed with food tray portion in the bottom of combustion engine, by suspended portion being configured in the below of combustion engine, can be by this suspended portion protection food tray portion.
Description of drawings
Fig. 1 is the left side view that expression is equipped with the automatic three-wheel vehicle of power unit of the present invention.
Fig. 2 is the left side view of power unit of the present invention.
Fig. 3 is the rear portion of above-mentioned automatic three-wheel vehicle and the birds-eye view of power unit.
Fig. 4 is the right side view of power unit.
Fig. 5 is the figure of the halfbody of the expression fore shell that constitutes engine shell, (a) is front elevation, (b) is left side view.
Fig. 6 is the figure that constitutes the back cover halfbody of engine shell, (a) is front elevation, (b) is left side view.
Fig. 7 is the right side view of speed change casing.
Fig. 8 is the VIII-VIII cutaway view of Fig. 7.
Fig. 9 is the IX-IX cutaway view of Fig. 2.
Among the figure, 2-vehicle body frame (car body), 4L-left rear wheel (drive wheel), 4R-off hind wheel (drive wheel), 6-Vehicular power unit, 12-suspension part (suspended portion), 21-engine shell (combustion engine), 22-speed change casing (transmission system), 26-bent axle, 33-hind axle (live axle), 34-countershaft, 68-second installation portion (joint portion), 69-the 3rd installation portion (joint portion).
The specific embodiment
Below, with reference to accompanying drawing, preferred embodiment describe of the present invention.At first, use Fig. 1, the automatic three-wheel vehicle 1 that is equipped with Vehicular power unit of the present invention (abbreviating in the following description, " power unit " as) is described.Automatic three-wheel vehicle 1 with a front-wheel 3 and two trailing wheel 4L, 4R constitutes: have the vehicle body frame 2 that forms U word shape under the situation of observing in the side, leading section at this vehicle body frame 2, be supported with front-wheel 3 via steering hardware 5, at the rear portion of vehicle body frame 2, be provided with the power unit 6 that drives left and right sides trailing wheel 4L, 4R.In addition, the top in the rearward end of vehicle body frame 2 is equipped with vehicle seat 14, and power unit 6 launched casings 15 cover.
Rearward end in the bottom of vehicle body frame 2 can joltily be equipped with the oscillating structural member 11 that downwards extend at fore-and-aft direction with the angular range of regulation with respect to vehicle body frame 2.In addition, in the bottom of this oscillating structural member 11, the suspension element 12 that rearward extends joltily is installed in the above-below direction freedom with respect to this oscillating structural member 11.
Then, use Fig. 2～Fig. 8 that power unit 6 is described.Also have, in the present embodiment, the direction of the arrow F among Fig. 2 as the place ahead, is described the direction of arrow U as the top.Power unit 6 has: the driving engine 19 that is made of cylinder head 20 and engine shell 21; With the transmission system 37 that is contained in speed change casing 22.
Engine shell 21 combination fore shell halfbody 21a and back cover halfbody 21b and constitute.In the front portion of fore shell halfbody 21a, extend ground by direction forwards, backwards and embed and have cylinder liner 23 to surround and be formed with the 23a of cylinder chamber, in the 23a of cylinder chamber, be provided with piston 24 sliding freely with direction forwards, backwards.In addition, this piston 24 is via connecting rod 25, and the bent axle 26 that remains in freely on the engine shell 21 with rotation is connected.Also have, the combustion chamber 27 by cylinder liner 23, cylinder head 20 and piston 24 form is connected with admission port that is formed at cylinder head 20 and exhausr port.
Extend upward and be installed on the bent axle 26 of engine shell 21 at right and left, constitute by left crankshaft half 26L and right crankshaft half 26R, the crank pin 30 that is provided with via linking two crankshaft half 26L, 26R, and be connected with connecting rod 25.In addition, bent axle 26 is arranged on the joint portion of fore shell halfbody 21a and back cover halfbody 21b, two crankshaft half 26L, 26R separately via about bearing 31,32 be held in front and rear casing halfbody 21a, 21b.
Sidepiece is equipped with speed change casing 22 in the left side of engine shell 21, and the axle journal of left crankshaft half 26L (journal) portion gives prominence in this speed change casing 22 and disposes.On speed change casing 22, hind axle 33 is installed, this hind axle 33 is positioned at the rear of bent axle 26 and extends abreast with this bent axle 26, and rotation remains on the speed change casing 22 freely, in addition, at its rear, countershaft 34 is installed, this countershaft 34 extends abreast with bent axle 26, and rotation remains on the speed change casing 22 freely.
In the left lateral sides of speed change casing 22, left side cover member 35 is installed, in the speed change unit room 36 that surrounds by this speed change casing 22 and left side cover member 35, contain transmission system 37.Transmission system 37 comprises: drive pulley 38, and it is installed in the collar of left crankshaft half 26L and the one rotation, and this left side crankshaft half 26L extends in speed change unit room 36; Follow-up pulley 39, it is installed in the left part of countershaft 34, and rotates relatively for this countershaft 34; Power-transfer clutch 40, the central portion that it is installed in countershaft 34,34 combinations separate with countershaft to make follow-up pulley 39; And variable-speed motor band 41, it is wound on drive pulley 38 and the follow-up pulley 39, and the rotation of drive pulley 38 is passed to follow-up pulley 39.
Drive pulley 38 comprises: dead sheave halfbody 38a, but its one is installed on the collar of left crankshaft half 26L rotatably; Movable sheave halfbody 38b, it can relatively move in the axial direction to this dead sheave halfbody 38a, and can rotate integratedly with left crankshaft half 26L, and variable-speed motor band 41 is held on these and fixes and movable sheave halfbody 38a, 38b.On the other hand, follow-up pulley 39 comprises: dead sheave halfbody 39a, and it can be installed on the countershaft 34 with the relative rotation; Movable sheave halfbody 39b, it can relatively move in the axial direction for this dead sheave halfbody 39a and can rotate relatively for countershaft 34, and variable-speed motor band 41 is held on these fixing and movable sheave 39a, 39b.Thereby, by the pulley variable-width ground of drive pulley 38 and follow-up pulley 39 is set, can make variable-speed motor band 41 be wound on the change in radius of two pulleys 38,39 continuously, thereby can electrodelessly control converter speed ratio (continuously).
Between countershaft 34 and hind axle 33, with these axle 34,33 almost parallel ground extensions lazy axle (idle shaft) 42 is installed, drive pulley 38 is rotated by the rotation of bent axle 26, this rotation is passed to follow-up pulley 39 via variable-speed motor band 41, in addition, be passed to countershaft 34 by power-transfer clutch 40.Then, the rotation of countershaft 34 via be arranged on countershaft 34, lazy axle 42, and the gear biographies of hind axle 33 be delivered to hind axle 33, and make trailing wheel 4L, the 4R rotation of drive installation about hind axle 33.
Also have, hind axle 33 comprises: left side axle 33L, and its left part is connected on the left rear wheel 4L; Right axle 33R, its right part is connected on the off hind wheel 4R, and these 33L, 33R are connected in modified roll mechanism 43, and this modified roll mechanism 43 is arranged on the right side of speed change casing 22.This modified roll mechanism 43 comprises: differential carriage 44, its can be configured in the relative rotation with hind axle 33 coaxial on; Pinion shaft 45, it connects on the direction vertical with hind axle 33 and is supported in the inside of differential carriage 44; A pair of miniature gears 46, it is installed on the two ends of pinion shaft 45; And pair of right and left side gear (side gear) 47, it meshes with two miniature gearss 46, Y-axis 33L, 33R respectively with about side gear 47 be connected.Then, the rotation of the countershaft 34 that transmits via lazy axle 42 is imported into the differential carriage 44 of modified roll mechanism 43, via pinion shaft 45 and two miniature gearss 46, is delivered to side gear 47, and axle 33L, 33R about separately being delivered to.
Side, right side at this speed change casing 22, right cover member 48 is installed, to cover this side, right side, countershaft 34, lazy axle 42, right axle 33R and modified roll mechanism 43 cover member 48 via bearing by the speed change casing 22 and the right side and keep, and left side axle 33L is kept by speed change casing 22 and the left member 35 that covers via bearing.
As mentioned above, by constitute make hind axle 33 and transmission system 37 bonded assembly bent axles 26 and countershaft 34 between, bent axle 26 and transmission system 37 are disposed near hind axle 33, therefore, under the situation of side-looking, bent axle 26 is positioned at the inboard of comparing with the profile of trailing wheel 4 (4L, 4R), has shortened the front and back length of power unit 6, thereby, can make this power unit 6 miniaturizations.In addition, under the situation of overlooking, with respect to the upwardly extending line of centers in front and back at automatic three-wheel vehicle 1, and transmission system 37 is configured in the left side of power unit 6, modified roll mechanism 43 is configured in the right side, thus, even make bent axle 26 and countershaft 34 near hind axle 33, the drive pulley 38 of transmission system 37, follow-up pulley 39, modified roll mechanism 43 can not disturb yet, and reduce the wasted space (dead space) in the speed change casing 22, thereby can make power unit 6 miniaturizations.
Also have, as shown in Figure 2, under the situation of side-looking, constitute the closed-loop (loop) that hind axle 33 is positioned at variable-speed motor band 41, thus, can further make power unit 6 miniaturizations.
In the front portion of speed change casing 22, be provided with the foot pedal starting mechanism 28 that is used for fire an engine 19.Foot pedal starting mechanism 28 comprises: pedal spindle (Kick shaft) 49, foot-operated arm (Kick arm) 50, foot-operated connection shaft 52, and foot-operated lazy axle (Kick idle shaft) 53.
Front portion at speed change casing 22, the place ahead and bent axle 26 at bent axle 26 are equipped with pedal spindle 49 abreast, and these pedal spindle 49 rotations remain on speed change casing 22 and the left side cover member 35 freely, the left end of this pedal spindle 49 is outstanding to the outside from engine shell 15, and at its front end foot-operated arm 50 is installed.On this pedal spindle 49, be wound with spring 51, under common state, keep foot-operated arm 50 to be located at the mode of waving the top.
In addition, at the left of bent axle 26, on this bent axle 26 coaxial, be provided with foot-operated connection shaft 52.Be somebody's turn to do the left part of foot-operated connection shaft 52, spiral inserts left side cover member 35 and keeps, and moves by rotating to right-hand, and engages with the left part of left bent axle 26L, so constitutes.In addition, between pedal spindle 49 and bent axle 26 (foot-operated connection shaft 52), be provided with foot-operated lazy axle 53 abreast with these axles 26,49, it is rotated and remains in freely on speed change casing 22 and the left side cover member 35.Also have, by be arranged on pedal spindle 49, foot-operated lazy axle 53, and foot-operated connection shaft 52 between the gear row, the rotation of pedal spindle 49 is delivered to foot-operated connection shaft 52 via foot-operated lazy axle 53, so constitute.
Step on downwards if will be located at the step tread 50a of the front end of foot-operated arm 50, then pedal spindle 49 overcomes the ejection force of spring 51 and rotates, and this rotation is passed to foot-operated lazy axle 53 by being located at the gear row of pedal spindle 49 and foot-operated lazy axle 53.Then, the rotation of this foot-operated lazy axle 53 is passed to foot-operated connection shaft 52 by being arranged on the gear row between foot-operated lazy axle 53 and the foot-operated connection shaft 52, foot-operated connection shaft 52 accompanying rotation and move to right-hand, and engage with left crankshaft half 26L, thereby rotation is passed to bent axle 26.Otherwise if pin leaves step tread 50a, then pedal spindle 49 utilizes spring 51 retrograde rotations, and will ride the position that arm 50 resets to the top, and, making foot-operated connection shaft 52 retrograde rotations, releasing engages with bent axle 26.
That is,, make bent axle 26 rotations downwards by step tread 50a is stepped on, thereby slided in piston 24 front and back, therefore, by also lighting a fire, can make power unit 6 (driving engine 19) starting with piston 24 compressions to combustion chamber 27 fuelings and Air mixing gas.
Be installed in the foot-operated gear 54 that also rotation of this pedal spindle 49 is delivered to foot-operated lazy axle 53 on the pedal spindle 49, as shown in Figure 2, have fan shape.This is owing to make the angle of pedal spindle 49 rotations limited by stepping on step tread 50a, by casting out the nonuseable part of foot-operated gear 54, shortens the front and back length of speed change casing 22, thereby can make this speed change casing 22 miniaturizations.
In addition, under the situation of side-looking, the S. A. that the S. A. of pedal spindle 49 is compared bent axle 26 is configured in the place ahead and place, below, and the S. A. that the S. A. of foot-operated lazy axle 53 is compared bent axle 26 is configured in the place ahead and place, top.53 rotations with pedal spindle 49 of foot-operated lazy axle are set are delivered to bent axle 26, by structure like this, can increase foot-operated than (kick ratio), can improve the startability of power unit 6, and by pedal spindle 49 being reached foot-operated lazy axle 53 relative bent axles 26 separate configuration up and down, can prevent that pedal spindle 49 from forwards bloating, thereby can make 22 miniaturizations of speed change casing.
Also have, if preventing pedal spindle 49 so forwards bloats, then in the place ahead of speed change casing 22, form the space at the left side of cylinder head 20 sidepiece, therefore, for example, as shown in Figure 2, the freeing pipe 55 that extends from cylinder head 20 this space can be configured in, therefore, power unit 6 miniaturizations can be made on the whole.
In addition,, make foot-operated arm 50 be positioned at the place ahead of left rear wheel 4L, therefore, can make the center of this foot-operated arm 50 near car bodies by the relative forwardly bent axle 26 of pedal spindle 49 is disposed.That is, take the people attend a banquet 14 near, need not painstakingly realize under the situation of left rear wheel 4L, just can operate (stepping on step tread 50a) this foot-operated arm 50, therefore, operability that should foot-operated arm 50 when improving starting.
In the inside of cylinder head 20, be formed with water jacket (not shown), this water jacket surrounds combustion chamber 27 and forms, and by cooling off at the internal flow cooling water expansion tank, the cooling water expansion tank that supplies to this water jacket is supplied with from the cooling water expansion tank supply port 56 that is formed on engine shell 21.In addition, flow through in the water jacket and the cooling water expansion tank of cold gas cylinder cap 20, in cooling water path 57 inflow engine shells 21, and discharge to the outside from cooling water outlet 58.
At the left side of cylinder head 20 sidepiece, be provided with cooling water pump 59, be used for supplying with cooling water expansion tank to cylinder head 20, supply with by the cooling water expansion tank supply port 56 of engine shell 21 through first pipe arrangement 60 from the cooling water expansion tank of these cooling water pump 59 ejections.Also have, the cooling water expansion tank that the water jacket of process cylinder head 20 warms is discharged from the cooling water outlet 58 of engine shell 21, through second pipe arrangement, 61 inflow radiators (radiator) 63.This cooling water expansion tank dispels the heat through radiator 63, flows into cooling water pump 59 through the 3rd pipe arrangement 62, thereby circulation between cylinder head 20 and radiator 63 so constitutes.
In the right side of engine shell 21, be formed with to right-hand opening and by the cooling fan chamber 64 of the 21c of wall portion encirclement, the collar of right crankshaft half 26R extends in this cooling fan chamber 64.Also have, in this cooling fan chamber 64, be provided with ACG65 at the collar of right crankshaft half 26R, and then be provided with cooling fan 66 at its leading section.
The launched casing 15 of the right openings portion of the 21c of wall portion covers.Engine shell 15 as shown in Figure 3, has: the 15a of cooling dome portion, and it covers right openings portion and forms cooling fan chamber 64; The 15d of vent path portion, it is formed with the vent path 15c that extends through the 15a of cooling dome portion from the front opening part 15b that is formed on the place ahead, in the right side of the 15a of cooling dome portion, with the position of cooling fan 66 subtends, be formed with through hole 15e vent path 15 and cooling fan chamber 64 be communicated with.
In addition, shown in Fig. 5 (a), right-hand member side at the front face of engine shell 21, above-mentioned radiator 63 is installed, make it towards the place ahead (heat delivery surface that is used in heat-dissipation air process is towards the place ahead), under the state that engine shell 15 is installed, the front opening part 15b of the launched casing 15 in the back of this radiator 63 covers, and so constitutes.Thereby, when three-wheel vehicle 1 travels automatically, directly contact radiator 63 of wind footpath travels, can effectively carry out the heat radiation of cooling water expansion tank, and then, take the vent path 15c of engine shell 15 to guide to cooling fan 66 through the air of this radiator 63, by this cooling fan 66 from through hole 15e, reach above-below direction forwards, backwards and blow, thus the inside that can cool off power unit 6 effectively.
So, the right side sidepiece of the front portion by radiator 63 being configured in engine shell 21 can effectively utilize the space in the place ahead of off hind wheel 4R, thereby can make automatic three-wheel vehicle 1 miniaturization.In addition and since can engine shell 21 that cooling water expansion tank is supplied with, and cylinder head 20 near configuration radiator 63, therefore, it is long to shorten the cooling tubing (first～the 3rd pipe arrangement 60～62) that connects them.And then, import cooling fan 66 by on the engine shell 15 at the rear portion of radiator cover 63, forming vent path 15c, do not make under the cooling structure complicated situation, just can efficient utilize the wind that travels well, and, can pass through cooling fan 66 cooling radiators 63.
Also have, the also launched casing 15 in the front of radiator 63 covers, but in engine shell 15
With the part of radiator 63 subtends, arrangement is formed with at right and left and extends upward and a plurality of vents of opening on above-below direction.This vent forms the wind facies that travels that is flowed in the past direction rear radiator 63 is blowed obliquely upward from oblique below, but flows through the cooling water expansion tank of radiator 63 effectively by the wind that travels, and so constitutes.
Secondly, use Fig. 9, to the power unit 6 of formation and the mounting structure of suspension element 12 describe as described above.In the bottom of power unit 6, shown in Fig. 4 waits, be formed with outstanding 67～68, two coupling member 12c of suspension installation portion downwards to install from the mode of this suspension installation portion 67～68 of right and left clamping.This coupling member 12c is fastened on the rear end member 12b between two coupling member 12c with two bolts 70a, 71a and nut 70b, 71b one group.In addition, power unit 6, its underpart connects and is fastened on coupling member 12c and the suspension installation portion 67～68 with nut 72b, 73b by making two bolts 72a, 73a.
Be positioned at first of the place ahead and hang installation portion 67, as shown in Figure 5, be formed on the bottom of fore shell halfbody 21a.In addition, be positioned at second and third suspension installation portion 68,69 at rear, as shown in Figure 6, second hangs the bottom that installation portion 68 is formed on back cover halfbody 21b, and as shown in Figures 7 and 8, the 3rd hangs the bottom that installation portion 69 is formed on speed change casing 22.As mentioned above, speed change casing 22 is installed in the left side sidepiece of engine shell 21, and second hangs installation portion 68 and the 3rd hangs installation portion 69 at right and left side by side, with one group bolt 73a and 73b be one group fastening with framing member 12c.Also have, as can be known clear and definite by Fig. 6～Fig. 9, for the left and right directions that makes two coupling member 12c equates at interval, form the left part of first installation portion 67 more outstanding to left than the left part of second installation portion 68, so that the width of the left and right directions of first installation portion 67, with the width cncr width of the left and right directions of second installation portion 68 and the 3rd installation portion 69 is roughly the same.
As mentioned above, by second and third installation portion 68,69 is anchored on coupling member 12c, power unit 6 can be fastened on the suspension element 12, and can fastening engine shell 21 and speed change casing 22, therefore, can carry out therefore, can reducing assembling man-hour and member number of packages with 73b by one group bolt 73a to the installation of suspension element 12 and fixing of speed change casing 22 relative engine shell 21.In addition, by using two coupling member 12c to carry out fastening from right and left clamping power unit 6, can improve the binding force between suspension element 12 and the power unit 6, and, the counter-force of self-powered driving wheel (trailing wheel 4L, 4R) passes to car body side (vehicle body frame 2 sides) effectively in the future, therefore, can improve the sensation of taking of taking the people.
Also have; bottom in engine shell 21; be formed with food tray portion 74 in inside; be used to store the lubricating oil of supply cylinder lid etc.; but it is as can be known clear and definite by Fig. 9; since about the coupling member 12c and the rear end member 12b of screw-tightened between them bottom that is positioned at this engine shell 21 of configuration, therefore, can protect the bottom of engine shell 21 by these suspension elements 12.
In addition, in above embodiment, show following situation, be that suspension element 12 is anchored on first～the 3rd suspension installation portion 67～68 outstanding to the bottom of power unit 6 and that front and back form side by side, and by the installation portion with rear side is that second and third hangs installation portion 68,69 are installed by two coupling member 12c clamping, fastening thus engine shell 21 and speed change casing 22, but also can constitute, (second and third hangs installation portion 68 by the installation portion with the installation portion of front side (first hangs installation portion 67) and rear side, 69) be formed at engine shell 21 and speed change casing 22 in the same manner respectively, so come fastening suspension element 12 and power unit 6, and fastening engine shell 21 and speed change casing 22.If be such structure, then can further improve the anchoring strength of engine shell 21 and speed change casing 22.
Claims (5)
1. Vehicular power unit, it is installed on car body by the suspended portion that an end is installed on the car body, has: combustion engine, its bent axle output rotary driving force from being provided with abreast with the live axle that is connected with drive wheel; Transmission system, it is the described rotary driving force of described bent axle, passes to described live axle via the countershaft that is provided with abreast with described live axle, and this Vehicular power unit is characterised in that,
This power unit has: the combustion engine that is made of cylinder head and engine shell; With the transmission system that is contained in the speed change casing,
Described combustion engine and the loading and unloading of described transmission system constitute freely,
Dispose described suspended portion in the joint portion of described combustion engine and described transmission system, and by same combination member with described combustion engine, described transmission system and described suspended portion combination.
2. Vehicular power unit according to claim 1 is characterized in that,
Described suspended portion is by constituting as lower member: main part, and it is installed on described car body; Two combination members, it is in conjunction with described main part and described combustion engine and described transmission system,
The left and right sides portion of described combustion engine of described combination member clamping and described transmission system and combination.
3. Vehicular power unit according to claim 1 and 2 is characterized in that,
Described combustion engine has the food tray portion that stores lubricating oil in the in-to-in bottom,
Described suspended portion is disposed at the below of described combustion engine.
4. Vehicular power unit according to claim 1 is characterized in that,
Described suspended portion is installed on the car body by oscillating structural member.
5. Vehicular power unit according to claim 1 is characterized in that,
Described suspended portion comprises: front end components, and the one end pivoting is linked on the oscillating structural member; The rear end member, it is distolateral that it inserts another of this front end components, and be that the center can be installed with the relative rotation with respect to this front end components with the axle that rearward extends; Coupling member, it links the bottom of this rear end member and power unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005187707 | 2005-06-28 | ||
| JP2005187707A JP4592515B2 (en) | 2005-06-28 | 2005-06-28 | Power unit for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1891564A CN1891564A (en) | 2007-01-10 |
| CN100590024C true CN100590024C (en) | 2010-02-17 |
Family
ID=37596822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610094026A Expired - Fee Related CN100590024C (en) | 2005-06-28 | 2006-06-21 | Power unit for vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4592515B2 (en) |
| CN (1) | CN100590024C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4596996B2 (en) * | 2005-07-05 | 2010-12-15 | 本田技研工業株式会社 | Cooling structure for vehicle power unit |
| JP5047746B2 (en) * | 2007-09-28 | 2012-10-10 | 本田技研工業株式会社 | Power unit for small vehicles |
| JP5664153B2 (en) * | 2010-11-15 | 2015-02-04 | スズキ株式会社 | Belt type continuously variable transmission for motorcycles |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5766079A (en) * | 1980-10-03 | 1982-04-22 | Honda Motor Co Ltd | Suspension device for rocking type tricycle |
| JPS61139576A (en) * | 1984-12-07 | 1986-06-26 | 本田技研工業株式会社 | Saddling type car |
| JPH01244995A (en) * | 1988-03-25 | 1989-09-29 | Honda Motor Co Ltd | Assembly of power unit and wheel |
| JPH05221370A (en) * | 1992-02-13 | 1993-08-31 | Suzuki Motor Corp | Power unit suspension device for scooter |
| JP3138947B2 (en) * | 1992-07-31 | 2001-02-26 | ヤマハ発動機株式会社 | Frame structure of scooter type motorcycle |
| JP3619290B2 (en) * | 1995-08-09 | 2005-02-09 | 本田技研工業株式会社 | Small vehicle |
| JP2002225774A (en) * | 2001-01-30 | 2002-08-14 | Yamaha Motor Co Ltd | Motorcycle structure |
| JP3828883B2 (en) * | 2003-08-20 | 2006-10-04 | 本田技研工業株式会社 | Power unit |
-
2005
- 2005-06-28 JP JP2005187707A patent/JP4592515B2/en active Active
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2006
- 2006-06-21 CN CN200610094026A patent/CN100590024C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1891564A (en) | 2007-01-10 |
| JP4592515B2 (en) | 2010-12-01 |
| JP2007008188A (en) | 2007-01-18 |
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