CN1263841A - Suction structure of small-sized motorcycle - Google Patents
Suction structure of small-sized motorcycle Download PDFInfo
- Publication number
- CN1263841A CN1263841A CN 00102201 CN00102201A CN1263841A CN 1263841 A CN1263841 A CN 1263841A CN 00102201 CN00102201 CN 00102201 CN 00102201 A CN00102201 A CN 00102201A CN 1263841 A CN1263841 A CN 1263841A
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- China
- Prior art keywords
- vehicle frame
- cleaner
- airfilter
- air suction
- bent axle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/10—Rider propelled cycles with auxiliary combustion engine
- B62M6/20—Rider propelled cycles with auxiliary combustion engine power-driven at crank shaft parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M7/00—Motorcycles characterised by position of motor or engine
- B62M7/02—Motorcycles characterised by position of motor or engine with engine between front and rear wheels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
To prevent sucking-in of dust to an air cleaner, and to improve the maintenance service life by forming an intake air passage for introducing outside air to the air cleaner in a car body frame, and opening the upstream end of the intake air passage outside in an upper part of a seat support part. An air cleaner 76 is formed by housing a cleaner element 80 in a cleaner case 79, and the cleaner case 79 is composed of a case main part 77 and a cover 78. A purifying chamber 82 continuing with the upstream end of a carburetor 70 and a nonpurifying chamber 83 are formed on both ends of the cleaner element 80 in the cleaner case 79, and the nonpurifying chamber 83 is communicated with the downstream end of an intake air passage 84 formed in a seat support part 19 arranged in a car body frame 10, and the upstream end of the intake air passage 84 is opened outside in an upper part of the seat support part 19 to thereby prevent the air cleaner from sucking dust to the possible minimum level to improve the maintenance service life of the air cleaner.
Description
The present invention relates to dilly, particularly to the air fed intake structure of driving engine.In this dilly, the vehicle seat support that last end bearing vehicle seat and extension up and down is located on the vehicle frame, near the driving engine that is contained in the vehicle frame bottom, is disposing airfilter.
In the prior art, this kind dilly is for example disclosed by the special fair 6-31057 communique of Japan, and in this vehicle, the upstream open end that extraneous air is imported the air suction way of airfilter also is configured near the driving engine.
But, in the above-mentioned existing intake structure, the upstream open end of air suction way is configured in the lower position of dilly, and the dust that produces when dilly travels is sucked by airfilter easily, the filtering parts of airfilter are made dirty easily, the lost of life of airfilter.
The present invention makes in view of the above problems, and its purpose is to provide a kind of can do one's utmost to prevent that dust is inhaled into the intake structure in airfilter, the dilly in raising airfilter life-span.
To achieve these goals, intake structure in the dilly of the present invention's first scheme, in this dilly, the vehicle seat support that last end bearing vehicle seat and extension up and down is located on the vehicle frame, near the driving engine that is contained in this vehicle frame bottom, disposing airfilter, it is characterized in that, the air suction way that extraneous air is imported airfilter is formed in the vehicle frame, and the upstream extremity of this air suction way is open facing outward on the top of vehicle seat support.
According to above-mentioned structure, because on the top that is located at the vehicle seat support on the vehicle frame up and down with extending, the upstream-end opening of air suction way, so, the upstream open end of air suction way is configured in the higher position of ratio of dilly, like this, can do one's utmost to prevent that the dust that produces when dilly travels from being sucked by airfilter, can improve the life-span of airfilter.And, because air suction way is formed in the vehicle frame, so, beyond vehicle frame, do not need to form the parts of air suction way, can reduce number of parts.
Alternative plan of the present invention, on the basis of above-mentioned first scheme, it is characterized in that, above-mentioned airfilter is housed in the filtering parts in the filter case and constitutes, filter case is made of case principal part and lid, the case principal part form by the part of vehicle frame and inside side's side recessed, the open end of inaccessible this case principal part of lid also releasably is installed on the vehicle frame.
According to this structure, not only can easily air suction way be formed in the vehicle frame, and can reduce number of parts.
Accompanying drawing is simply described as follows:
Fig. 1 is the biopsy cavity marker devices lateral plan of the bicycle of band auxiliary engine.
Fig. 2 is the skiagraph of driving engine, is the section-drawing along 2-2 line among Fig. 3.
Fig. 3 is the 3-3 line section-drawing of Fig. 2.
Fig. 4 is the 4-4 line section-drawing of Fig. 2.
Fig. 5 is the 5-5 line section-drawing of Fig. 2.
The section-drawing of state when Fig. 6 is the assembling of expression driving engine.
Below, with reference to description of drawings one embodiment of the invention.
Fig. 1 to Fig. 6 represents one embodiment of the invention, and Fig. 1 is the biopsy cavity marker devices lateral plan of the bicycle of band auxiliary engine.Fig. 2 is the longitudinal diagram of driving engine, is the section-drawing along 2-2 line among Fig. 3.Fig. 3 is the 3-3 line section-drawing of Fig. 2.Fig. 4 is the 4-4 line section-drawing of Fig. 2.Fig. 5 is the 5-5 line section-drawing of Fig. 2.The section-drawing of state when Fig. 6 is the assembling of expression driving engine.
Among Fig. 1, dilly, promptly with the vehicle frame 10 of the bicycle of auxiliary engine, have the head pipe 11 of its front end, the seat post 13 of from the beginning managing 11 undercarriages 12, being parallel to head pipe 11 and extending upward, inblock cast shapings such as head pipe 11, undercarriage 12 and seat post 13 usefulness aluminum alloys from the upper rear end of undercarriage 12 to back lower place extension.
Manage 11 upper supports at head and the front fork 14 that can turn to, axle is propping up front-wheel W in the lower end of this front fork 14
F, be provided with steering tiller 15 in the upper end of front fork 14.At the pair of right and left back vent 16 that rearward stretches out from undercarriage 12 rear ends ... the rear end between, axle is propping up trailing wheel W
R, at the above-below direction pars intermedia and two back vents 16 of seat post 13 ... the rear end between, be provided with pair of right and left and support 17 ...
Seat post 13 is a tubular, and the cylindric support tube 18 of both ends open inserts seat post 13 from the top, and the scalable upper-lower position be fixed on the seat post 13.The upper end of support tube 18 is installed with the vehicle seat of taking for the rider 20.
The forebody of undercarriage 12 has the summary U font transverse shape open towards the below, is accommodating Fuel Tank 21 in the forebody of this undercarriage 12, and the lid 22 that these Fuel Tank 21 upper ends are had is projected into the top from undercarriage 12.
At the rear portion of undercarriage 12, rotatably mounted pedal shaft 23 is for being sitting in the pedal 24 that the rider on the vehicle seat 20 tramples ... be fixed on the two ends of this pedal shaft 23 with being configured in undercarriage 12 both sides.At the state towards travel direction the place ahead of the bicycle of being with auxiliary engine, on the right side of undercarriage 12, drive sprocket 25 is disposing coaxially with pedal shaft 23, is located at trailing wheel W coaxially
RGo up by on movable sprocket 26 and the above-mentioned drive sprocket 25 endless chain 27 of reeling.
The bottom of the undercarriage 12 of vehicle frame 10 is provided with driving engine 28, as the inscape of a part that constitutes undercarriage 12.These driving engine 28 performances are to rider's pedal 24 ... the boosting power of legpower.
As Fig. 2, Fig. 3 and shown in Figure 4, the cylinder block 30 of driving engine 28 disposes like this: the axis that makes the cylinder chamber 31 that this cylinder block 30 had slightly on even keel along the bicycle fore-and-aft direction.Be configured in the cylinder head 32 and the crankcase 33 that is configured in these cylinder block 30 rears in these cylinder block 30 the place aheads, be combined on the cylinder block 30.
Be entrenched in slidably on the piston 34 in the cylinder chamber 31, connecting bent axle 36 by connecting rod 35, this bent axle 36 has along the axis of bicycle Width.Accommodate the crankcase 33 of this bent axle 36, being mutually combined by the upper tank 38 that is combined in the lower tank 37 on the cylinder block 30 and is formed on undercarriage 12 rear portions forms, and avoids upper tank 38 directly to combine with cylinder block 30.The division plane 39 of lower tank 37 and upper tank 38 is parallel to the axis of cylinder chamber 31 and the axis of bent axle 36.
Bent axle 36 is housed in the lower tank 37 among two casees 37,38 that constitute crankcase 33, and at least two positions of holding Crankpin 36a under the arm of this bent axle 36 (being two positions in the present embodiment) can be rotated to support on the lower tank 37.Promptly, the bent axle 36 of present embodiment has the Crankpin 36a that is connecting connecting rod 35, crank arm 36b, the 36c of this Crankpin 36a both sides and crank shaft crank journal 36d, the 36e that gives prominence to foreign side from two crank arm 36b, 36c integratedly, and two crankshaft bearing journal 36d, 36e can be rotated to support on the maintenance seat 40,41 that is fixed on the lower tank 37 by ball-bearing casing 42,43.
Above-mentioned two keep seat 40,41 to hold under the arm between cylinder block 30 and lower tank 37, by means of being configured in around the cylinder chamber 31 and being screwed into 4 thru- bolts 44,44 of lower tank 37 ... respectively with each thru- bolt 44,44 ... the nut 45,45 of screw thread combination ..., cylinder head 32, cylinder block 30, maintenance seat 40,41 and lower tank 37 are fixed together.That is, an end is located at the thru- bolt 44,44 on the lower tank 37 ... pass respectively and keep seat 40,41, cylinder block 30 and cylinder head 32, the thru- bolt 44,44 that stretches out from cylinder head 32 ... the other end, screw thread in conjunction with nut 45,45 ...Leaving each thru- bolt 44,44 ... with nut 45,45 ... the position of restraint location, one or several bolts 46 of cylinder head 32 usefulness are fastened on the cylinder block 30.
The outer shroud of above-mentioned ball-bearing casing 42,43 is pressed into respectively and keeps seat 40,41, and crankshaft bearing journal 36d, the 36e of bent axle 36 is pressed into the interior ring of above-mentioned ball-bearing casing 42,43 respectively.
Two keep among the seat 40,41, and foreign side's side of the maintenance seat 40 on the left of being configured in the posture towards bicycle fore-and-aft direction the place ahead is disposing electrical generator 48.The rotor 49 of this electrical generator 48 is fixed on from keeping an end of seat 40 bent axles that stretch out 36, is darted at integratedly on the 40a of carrying cylinder portion that keeps on the seat 40 around this ground, bent axle 36 1 ends coaxially, is fixing the stator 50 of electrical generator 48.
As shown in Figure 5, on above-mentioned maintenance seat 40, be provided with supporting arm 40b integratedly, this supporting arm 40b is towards along being to extend towards upper tank 38 sides in a radius direction foreign side side of bent axle 36, the present embodiment.In the outer end of this supporting arm 40b, fixing fire pulse device 52 with a pair of screw part 53,53, this fire pulse device 52 detects the magnet 51 of rotor 49 outsides that are fixed on electrical generator 48, the pulse of output decision driving engine 28 ignition timings.
This driving engine 28 is valve-on-the-side formulas, faces the combustion chamber 54 of the part at piston 34 tops, is formed between cylinder block 30 and the cylinder head 32, and with towards the configuration of the posture in bicycle fore-and-aft direction the place ahead, its center is from the axis of cylinder chamber 31 lateral deviation to the right.On cylinder head 32, the light-up plug 57 that the inner faces combustion chamber 54 is installed.
On the top of cylinder block 30, be provided with the air suctiton inlet 55 that can communicate with combustion chamber 54, in the bottom of cylinder block 30, be provided with the exhausr port 56 that can communicate with combustion chamber 54.
These air suction valves 58 and blow off valve 59 are opened and closed by active valve mechanism 60, and this active valve mechanism 60 has the timing driven wheel 61 that is fixed on the bent axle 36, rotatably by be fixed on the cylinder block 30 fulcrum 62 supporting and with timing driven wheel 61 ingears ring gear 63 regularly, be formed on regularly the cam 64 on the ring gear 63, be driven in this cam 64 and swingingly be bearing on the cylinder block 30 and with above-mentioned air suction valve 58 interlocks, bonded assembly suction side swing arm 65, be driven in cam 64 and swingingly be bearing on the cylinder block 30 and with blow off valve 59 interlocks, bonded assembly suction side swing arm 66.
Above-mentioned timing driven wheel 61, keep foreign side's side among the seat 40,41, be configured in the maintenance seat 41 on right side with posture two towards bicycle fore-and-aft direction the place ahead, be located at the other end of bent axle 36, pass to regularly ring gear 63 and cam 64 after the rotary power deceleration 1/2 of this timing driven wheel 61 with camshaft 36.That is, cam 64 is decelerated and is 1/2 of the rotative speed of bent axle 36.
On the top of cylinder block 30, connecting the downstream end of the aspirate tube 69 that communicates with air suctiton inlet 55, the upstream extremity of this aspirate tube 69 is connected with the downstream end of carburettor 70.This carburettor 70 is configured in the rear side of Fuel Tank 21, and a part is housed in the undercarriage 12 of vehicle frame 10.
On above-mentioned undercarriage 12, be provided with next door 71 integratedly, the rear end of Fuel Tank 21 parts is accommodated in these next door 71 decisions, the rear side in this next door 71, open reception room 72 below forming in undercarriage 12, above-mentioned carburettor 70 is fixed on the undercarriage 12, and its top is housed in the reception room 72.The control unit of engine 73 that is made of microcomputer is being accommodated on top in reception room 72, and the lead 74 that links to each other with light-up plug 57 and lead 75 (see figure 5)s of linking to each other with above-mentioned fire pulse device 52 etc. are connected with this control unit of engine 73.
The upstream extremity of above-mentioned carburettor 70 is connected with airfilter 76.This airfilter 76 is accommodated filtering parts 80 and is constituted in filter case 79.Filter case 79 is made of case principal part 77 and lid 78.Case principal part 77 is formed by the part of the undercarriage 12 of vehicle frame 10, and inside side's side is recessed.Lid 78 clogs the open end of case principal part 77, releasably is installed on undercarriage 12 and the seat post 13.
Case principal part 77 is located at the rear portion of undercarriage 12, is also used as the part of upper tank 78 with the rear side of reception room 72.The screw part 82 that lid 79 usefulness are screwed into abutment wall 81 upper ends is fixed on the case principal part 77, and above-mentioned abutment wall 81 forms as one with case principal part 77.
In the filter case 79 of this airfilter 76, both sides at filter element 80, decontamination chamber 82 that formation links to each other with the upstream extremity of carburettor 70 and decontamination chamber 83 not, decontamination chamber 83 is not communicated with the downstream end of air suction way 84, air suction way 84 is formed in the vehicle seat support 19 that is located on the vehicle frame 10, and the upstream extremity of this air suction way 84 is open facing outward on the top of vehicle seat support 19.
Among this embodiment, vehicle seat support 19 is by constituting with undercarriage 12 all-in-one-piece tubular seat post 13 and the support tube 18 that inserts this seat post 13 from the top, by the intercommunicating pore on the lower sides that is located at seat post 13 85, air suction way 84 is communicated with the not decontamination chamber 83 of airfilter 76, and the upper end of support tube 18 is in the lower opening of vehicle seat 20 and and exterior.
The lower ending opening portion of seat post 13 clogs with breather stem vent plug 87, this breather stem vent plug 87 has the breather pipe 86 that stretches in the air suction way 84, this breather stem vent plug 87 is seized on both sides by the arms between pressing plate 88 and upper tank 38, and pressing plate 88 is fixed on the upper tank 38 as crankcase 33 inscapes of driving engine 28.And, between breather stem vent plug 87 and pressing plate 88, form an end by in the crankcase 33, the labyrinth 89 of the other end by above-mentioned breather pipe 86, the ventilation gas that produces crankcase 33 in is by during the above-mentioned labyrinth 89, on one side separating oil one side from breather pipe 86 inhale paths 84.
In the bottom of cylinder block 30, connecting the upstream extremity of the freeing pipe 90 that communicates with exhausr port 56, this freeing pipe 90 rearward stretches out by the below of driving engine 28, and is configured in driving engine 28 and trailing wheel W
RBetween exhaust gas silencer 91 (see figure 1)s connect.
Extremely shown in Figure 4 as Fig. 2, on the lower tank 37 of crankcase 33, parallel axes is rotatably mounted in the two ends of the main shaft 94 of bent axle 36, parallel axes is in an end of the pedal shaft 23 of main shaft 94, in the upper tank 38 of crankcase 33, can be rotated to support on along on the left side sidewall of bicycle fore-and-aft direction by ball-bearing casing 95.In addition, in above-mentioned upper tank 38, along on the sidewall on bicycle fore-and-aft direction right side, outer distolateral around the rotating cylinder axle 96 of pedal shaft 23 other ends coaxially, rotatably mounted by ball-bearing casing 97, the inner end of rotating cylinder axle 96 can supported with the relative rotation by pedal shaft 23,23 of the outer distolateral and pedal shafts of rotating cylinder axle 96, folder is being established roller bearing 98.That is, coaxial pedal shaft 23 and rotating cylinder axle 96 can be bearing on the upper tank 38 of crankcase 33 with the relative rotation, are fixing drive sprocket 25 in the outer end of rotating cylinder axle 96.
On the side 36c among a pair of crank arm 36b, the 36c that bent axle 36 is had, fixing first order driven wheel 99, with these first order driven wheel 99 ingear first order ring gears 100, can be bearing in the relative rotation on the main shaft 94.
On main shaft 94, be installed with and start power-transfer clutch 102.This engine clucht 102 has can not be with respect to the input block 103 of main shaft 94 rotation and can be with respect to the output gear 104 of main shaft 94 rotations.First order ring gear 100 is connected with the input block 103 that starts power-transfer clutch 102 by baffle plate 101.When from the rotative speed of bent axle 36 by first order driven wheel 99, first order ring gear 100 and baffle plate 101 driven input blocks 103 being setting value when above, this starts power-transfer clutch 102 to give output gear 104 from input block 103 with transmission of power.
Start the output gear 104 of power-transfer clutch 102 to be connected with rotating cylinder axle 96 by the 1st planetary gear type reductor 105.The carriage 106 of the 1st planetary gear type reductor 105 can not be contained on the rotating cylinder axle 96 with the relative rotation, sun gear 107 and output gear 104 engagements, and inner gear 108 engages with main shaft 94, prevents rotating around axis of rotating cylinder axle 96.
The empty standard width of a room in an old-style house every position and the 1st planetary gear type reductor 105 the 2nd planetary gear type reductor 111 in opposite directions, be contained on the pedal shaft 23, carriage 112 in the 2nd planetary gear type reductor 111 is bonded on the upper tank 38, and pedal shaft 23 is not rotated around axis.Inner gear 113 can be bearing on the pedal shaft 23 rotatably around axis, and sun gear 114 is being supported by inner gear 113, can rotate around axis.
105,111 of the 1st and the 2nd planetary gear type reductors, on pedal shaft 23, by helical wheel the travel mechanism 115 coaxial with this pedal shaft 23 is installed, periphery in this travel mechanism 115, by with the engaging of upper tank 38, frictional engagement spring 116, and this spring 116 can not rotate around pedal shaft 23 axis.When pedal shaft 23 when the bicycle working direction is rotated, frictional engagement by spring 116, the travel mechanism 115 that is prevented from slew mode moves to the 1st planetary gear type reductor 105 sides, when pedal shaft 23 when the bicycle direction of retreat is rotated, by with the frictional engagement of spring 116, the travel mechanism 115 that is prevented from slew mode moves to the 2nd planetary gear type reductor 111 sides.And, travel mechanism 115 can with carriage 106 engaged pawl of the 1st planetary gear type reductor 105, can be from travel mechanism 115 to carriage 106 transferring power and can not be from carriage 106 to travel mechanism's 115 transferring power.In addition, travel mechanism 115 can with inner gear 113 engaged pawl of the 2nd planetary gear type reductor 111, can be from travel mechanism 115 to inner gear 113 transferring power, but can not be from inner gear 113 to travel mechanism's 115 transferring power.
Therefore, the pedal 24 of entering into ..., make pedal shaft 23 when the bicycle working direction is rotated, travel mechanism 115 move up to carriage 106 engaged pawl of the 1st planetary gear type reductor 105, by with the frictional engagement of spring 116, surpassing the rotary power that acts on the rotational resistance in the travel mechanism 115, be added on the pedal shaft 23, like this, by travel mechanism 115 and carriage 106 rotary power be delivered to rotating cylinder axle 96 from pedal shaft 23.
On main shaft 94, rotatably mounted with sun gear 114 periphery ingear helical wheels 117 in the 2nd planetary gear type reductor 111, on this helical wheel 117, frictional engagement spring 118, spring 118 by with the engaging of lower tank 37, be prevented from axis rotation around main shaft 94.And on main shaft 94, devices spaced apart and above-mentioned helical wheel 117 relative turning units 119 can not be installed with the relative rotation.
The pedal 24 of entering into ..., make pedal shaft 23 when the bicycle direction of retreat is rotated, travel mechanism 115 move up to inner gear 113 engaged pawl of the 2nd planetary gear type reductor 111, by with the frictional engagement of spring 116, be added on the pedal shaft 23 surpassing the rotary power that acts on the rotational resistance in the travel mechanism 115, like this, by travel mechanism 115 and the 2nd planetary gear type reductor 111, rotary power is delivered to helical wheel 117 from pedal shaft 23.Like this, by with the frictional engagement of spring 118, the helical wheel 117 that is prevented from slew mode moves to turning unit 119 sides.And, helical wheel 117 can with turning unit 119 engaged pawl, can be from this helical wheel 117 and can not be from this turning unit 119 to helical wheel 117 transferring power to turning unit 119 transferring power.
Therefore, by pedal shaft 23 is rotated to the bicycle direction of retreat, make helical wheel move up to turning unit 119 engaged pawl, by with the frictional engagement of spring 118, be added on the pedal shaft 23 surpassing the rotary power that acts on the rotational resistance on the helical wheel 117, like this, can rotary power be delivered to main shaft 94 from pedal shaft 23 by travel mechanism's the 115, the 2nd planetary gear type reductor 111, helical wheel 117 and turning unit 119.And input block 103, baffle plate 101, first order ring gear 100 and the first order driven wheel 99 of the rotary power of main shaft 94 by starting power-transfer clutch 102 is delivered to bent axle 36, so driving engine 28 startings.
When the assembling of driving engine 28, as shown in Figure 6, prepare bent axle assembly 120, cylinder assembly 121, lower tank assembly 122, and, on upper tank 38, to assemble pedal shaft 23, rotating cylinder axle the 96, the 1st planetary gear type reductor the 105, the 2nd planetary gear type reductor 111, travel mechanism 115 and spring 116 etc. in advance.
Bent axle assembly 120 constitutes like this: be connected with piston 34 by connecting rod 35 and fixing on the bent axle 36 of first order driven wheel 99, by ball-bearing casing 42,43 maintenance seat 40,41 is installed, two ends at bent axle 36, electrical generator 48 and timing driven wheel 61 are installed, on a side maintenance seat 40, fire pulse device 52 are installed.
Cylinder block assembly 121, the part except timing driven wheel 61 constitutes in assembling light-up plug 57, air suction valve 58, blow off valve 59, aspirate tube 69 and the active valve mechanism 60 on cylinder block 30.Lower tank assembly 122 is on the lower tank 37 of fixing main shaft 94, first order ring gear 100 is installed, is started power-transfer clutch 102, helical wheel 117 and spring 118 etc. and form.
During assembled engines 28, piston 34 is entrenched in the cylinder chamber 31 of cylinder block 30, bent axle assembly 120 and cylinder assembly 121 are assembled on the lower tank assembly 122 temporarily, cylinder head 32 sides from light-up plug 57 is installed again, the thru- bolt 44,44 that passes cylinder head 32 and cylinder block 30 ... be screwed into lower tank 37, again screw thread is combined in each thru- bolt 44,44 ... on each nut 45,45 ... tighten, like this, bent axle assembly 120, cylinder assembly 121, lower tank assembly 122 and cylinder head 32 are assembled mutually.Then, lower tank 37 is fastened on the upper tank 38, whole assemblings of driving engine 28 are finished.
Like this, bent axle assembly 120, cylinder assembly 121 and lower tank assembly 122 as group, are carried out the assembling of driving engine 28, can improve the assembleability of driving engine 28.And, in bent axle assembly 120,, can carry out the gap adjustment of 51 of fire pulse device 52 and magnet with group's state of bent axle assembly 120.In addition, be housed on the bent axle assembly 120 in the lower tank 37, electrical generator 48 and fire pulse device 52 are installed, so, do not need to cover the cover of electrical generator 48 and fire pulse device 52 etc.
The following describes the effect of this embodiment.Extraneous air is imported the air suction way 84 that is configured in driving engine 28 airfilter 76 nearby, be formed in the vehicle seat support 19, the last end bearing of this vehicle seat support 19 vehicle seat 20 and is located on the vehicle frame 10 up and down with extending, the upstream extremity of air suction way 84 is open facing outward on the top of vehicle seat support 19, so the upstream open end of air suction way 84 is configured in the higher position of ratio of bicycle.Like this, the dust that produces in the time of can doing one's utmost to prevent bicycle running is sucked by airfilter 76, can avoid filtering parts 80 to make dirty, improves the life-span of airfilter 76.Especially among this embodiment, because the upstream open end of air suction way 84 covered by vehicle seat 20, so, prevent that more effectively dust from being sucked by airfilter 76, more improves the life-span of airfilter.
Because air suction way 84 is formed in the vehicle seat support 19 that is located on the vehicle frame 10, so, beyond vehicle frame 10, do not need to form the parts of air suction way 84, can reduce number of parts.
Airfilter 76 is housed in filtering parts 80 in the filter case 79 and constitutes, and filter case 79 is made of case principal part 77 and lid 78, and case principal part 77 forms also by the part of the undercarriage in the vehicle frame 10 12 that inside side's side is recessed into.The open end of lid 78 inaccessible these case principal parts 77 releasably is installed on the above-mentioned undercarriage 12 and seat post 13 of vehicle frame 10, like this, not only easily air suction way 84 is formed in the vehicle frame 10, and can reduces number of parts.
The crankcase 33 of driving engine 28, lower tank of being cut apart by the available division plane 39 that is parallel to bent axle 36 axis 37 and upper tank 38 mutually combine and form, on this cylinder block 30, because only in conjunction with lower tank 38, so, the seal construction of the faying face of cylinder block 30 and crankcase 33 is simple, improves leak tightness.
In bent axle 36, rotatably mounted because Crankpin 36a is held under the arm at least in 2 mutual positions, present embodiment is 2 positions by lower tank 37 sides, so, improve the supporting rigidity of bent axle 36, can improve the durability of bent axle 36.
Above-mentioned division plane 39 is parallel to the axis of the cylinder chamber 31 of cylinder block 30, like this, lower tank 37 can be formed the open bowl-type in top, makes the simple shapeization of lower tank 37.
Because bent axle 36 is bearing on the maintenance seat 40,41 that is fixed in lower tank 37 by ball-bearing casing 42,43 respectively, so can avoid labor content to increase, supporting crankshaft 36 accurately.Promptly, in the structure that is installed in the bearing supporting crankshaft 36 in the support holes (this support holes is formed between a pair of parts that are configured in the bent axle both sides), must carry out the processing of above-mentioned support holes at the assembled state of above-mentioned both sides parts, to guarantee the supporting precision of bent axle 36, and keep installing on the seat 40,41 in the structure of ball-bearing casing 42,43 at each, just do not need above-mentioned processing, supporting crankshaft 36 accurately.
Keep seat 40,41 because ball-bearing casing 42,43 is pressed into,, can suppress noise so the supporting rigidity of bent axle 36 is more strengthened.Because keep seat 40,41 to be fixed on the lower tank 37, so, can easily ball-bearing casing 42,43 be pressed into maintenance seat 40,41.
Above-mentioned each keep seat 40,41, at the state of holding under the arm 37 of cylinder block 30 and lower tank, tighten with lower tank 37 with cylinder head 32, cylinder block 30 and to be in the same place, so available few number of parts easily keeps each 40,41 to be assembled on the lower tank 37.
Describe embodiments of the invention above in detail, but the present invention is not limited to the foregoing description, in not breaking away from the scope of the invention that claim puts down in writing, can makes various design modifications.
For example, in the foregoing description, vehicle seat support 19 is to be made of seat post 13 and support tube 18, and end bearing vehicle seat 20 and inserted in the seat post 13 on this support tube 18, still, also can be provided with and vehicle frame 10 all-in-one-piece vehicle seat supports.
According to first scheme of the present invention, the upstream open end of air suction way is configured in the higher position of ratio of dilly, can do one's utmost to prevent that dust from being sucked by airfilter, improve the life-span of airfilter.Beyond vehicle frame, do not need to form the parts of air suction way, can reduce number of parts.
According to alternative plan of the present invention, can not only easily air suction way be formed in the vehicle frame, and can reduce number of parts.
Claims (2)
1. the intake structure in the dilly, in this dilly, the vehicle seat support (19) that last end bearing vehicle seat (20) and extension up and down is located on the vehicle frame (10), near the driving engine (28) that is contained in this vehicle frame (10) bottom, disposing airfilter (76), it is characterized in that the air suction way (84) that extraneous air is imported airfilter (76) is formed in the vehicle frame (10), the upstream extremity of this air suction way (84) is open facing outward on the top of vehicle seat support (19).
2. the intake structure in the dilly as claimed in claim 1, it is characterized in that, above-mentioned airfilter (76) is housed in filtering parts (80) in the filter case (79) and constitutes, filter case (79) is made of case principal part (77) and lid (78), case principal part (77) form by the part of vehicle frame (10) and inside side's side recessed, the open end of inaccessible this case principal part (77) of lid (78) also releasably is installed on the vehicle frame (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP035208/1999 | 1999-02-15 | ||
| JP11035208A JP2000233782A (en) | 1999-02-15 | 1999-02-15 | Intake air structure in small vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1263841A true CN1263841A (en) | 2000-08-23 |
| CN1135179C CN1135179C (en) | 2004-01-21 |
Family
ID=12435439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001022016A Expired - Fee Related CN1135179C (en) | 1999-02-15 | 2000-02-04 | Suction structure of small-sized motorcycle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2000233782A (en) |
| CN (1) | CN1135179C (en) |
| FR (1) | FR2789631B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447042C (en) * | 2004-09-24 | 2008-12-31 | 雅马哈发动机株式会社 | Straddle type vehicle |
| CN102785753A (en) * | 2012-08-16 | 2012-11-21 | 栗运岭 | Center shaft assembly of boosting bicycle |
| CN104520574A (en) * | 2012-07-11 | 2015-04-15 | 川崎重工业株式会社 | Saddle-ridden vehicle engine |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002200998A (en) * | 2000-12-28 | 2002-07-16 | Honda Motor Co Ltd | Motorcycle with pedals |
| JP2002200994A (en) * | 2000-12-28 | 2002-07-16 | Honda Motor Co Ltd | Motorcycle |
| MY129037A (en) * | 2001-05-02 | 2007-03-30 | Yamaha Motor Co Ltd | Vehicle body frame for motorcycle and motorcycle having the vehicle body frame |
| JP4506317B2 (en) * | 2004-07-14 | 2010-07-21 | スズキ株式会社 | Motorcycle |
| JP4732094B2 (en) * | 2005-09-15 | 2011-07-27 | 川崎重工業株式会社 | Motorcycle mainframe |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE958970C (en) * | 1953-04-14 | 1957-02-28 | Walter Bockstette | Intake device for internal combustion engines, especially for motorcycles |
| DE935222C (en) * | 1953-09-27 | 1955-11-17 | Triumph Werke Nuernberg Ag | Air filter assembly |
| JP3569809B2 (en) * | 1992-12-17 | 2004-09-29 | 本田技研工業株式会社 | Motorcycle air cleaner |
-
1999
- 1999-02-15 JP JP11035208A patent/JP2000233782A/en active Pending
-
2000
- 2000-02-04 CN CNB001022016A patent/CN1135179C/en not_active Expired - Fee Related
- 2000-02-14 FR FR0001781A patent/FR2789631B1/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447042C (en) * | 2004-09-24 | 2008-12-31 | 雅马哈发动机株式会社 | Straddle type vehicle |
| CN104520574A (en) * | 2012-07-11 | 2015-04-15 | 川崎重工业株式会社 | Saddle-ridden vehicle engine |
| US9638149B2 (en) | 2012-07-11 | 2017-05-02 | Kawasaki Jukogyo Kabushiki Kaisha | Air intake duct of saddle-ridden vehicle |
| US9651005B2 (en) | 2012-07-11 | 2017-05-16 | Kawasaki Jukogyo Kabushiki Kaisha | Air intake duct of saddle-ridden vehicle |
| US9677516B2 (en) | 2012-07-11 | 2017-06-13 | Kawasaki Jukogyo Kabushiki Kaisha | Saddle-ridden vehicle engine |
| CN102785753A (en) * | 2012-08-16 | 2012-11-21 | 栗运岭 | Center shaft assembly of boosting bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1135179C (en) | 2004-01-21 |
| FR2789631A1 (en) | 2000-08-18 |
| FR2789631B1 (en) | 2003-08-01 |
| JP2000233782A (en) | 2000-08-29 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |