CN100500467C - Two-wheeled motorcycle - Google Patents
Two-wheeled motorcycle Download PDFInfo
- Publication number
- CN100500467C CN100500467C CN 200610162563 CN200610162563A CN100500467C CN 100500467 C CN100500467 C CN 100500467C CN 200610162563 CN200610162563 CN 200610162563 CN 200610162563 A CN200610162563 A CN 200610162563A CN 100500467 C CN100500467 C CN 100500467C
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- aforementioned
- conduit
- air
- wheeled motor
- motor vehicle
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- Y02T10/146—
Abstract
An intake air passage, formed through a motorcycle body frame, reduces changes in pressure within an air routing duct member due to opening and closing of a throttle, and also reduces pipe resonance of the air routing duct member. An intake air passage (26) is trans-installed on the body frame (6), and a duct pipe (71) is installed along a front and a rear area of the body, which can lead the fresh air from the outer air introducing opeaning (7a) on the front of the body frame (6) into the intake air passage (26). The air routing duct member (71) includes openings (71c) that communicate with hollow sections (74c) provided in a hollow portion of an instrumentation support member (74). When the throttle is opened rapidly, air from the hollow sections (74a) is temporarily supplied to the air routing duct member, reducing changes in internal air pressure in the air routing duct member (71) due to throttle operation. Resonance chambers (84) are formed above the air routing duct member (71), and communicate through communication pipes (80) with a space within the air routing duct member (71) to reduce duct pipe (71) resonance.
Description
Technical field
The present invention relates to two-wheeled motor vehicle.
Background technology
For two-wheeled motor vehicle, to improve intake efficiency is purpose, on vehicle body frame, connect air flue is set, along the fore-and-aft direction of vehicle body the extraneous air that will utilize vehicle body frame to import from the extraneous air introducing port in the place ahead is set and imports to conduit (for example, with reference to patent documentation 1) in the air flue.
[patent documentation 1] spy opens the 2004-115018 communique
Summary of the invention
In having the two-wheeled motor vehicle of this structure, except improving intake efficiency, also expectation relaxes because the negative pressure variation in the conduit that the switching of throttle gate causes, and the pipe resonance that relaxes conduit.
The purpose of this invention is to provide the two-wheeled motor vehicle that can satisfy this expectation.
At first, according to scheme 1 described two-wheeled motor vehicle, on vehicle body frame, connect air flue is set, fore-and-aft direction along vehicle body is provided with conduit, the extraneous air that described conduit will import from the extraneous air introducing port in aforementioned vehicle body frame the place ahead is directed in the aforementioned air flue, it is characterized in that, described two-wheeled motor vehicle, on aforementioned conduit, has peristome, and has first energy chamber that is communicated with aforementioned conduit, aforementioned first energy chamber is arranged at the hollow bulb of the functional component supporting member that supports instrument at least, and aforementioned hollow part is provided with from aforementioned conduit to the left and right in the top of aforementioned conduit with stretching out.
In addition, invention according to scheme 2 described two-wheeled motor vehicles, it is characterized in that aforementioned conduit has the current plate member that is installed to this supravasal split, form second energy chamber of dividing out by at least a portion of the part of aforementioned conduit and aforementioned current plate member.
In addition, between aforementioned conduit and aforementioned first energy chamber, be provided with the limiting member of limit air influx according to the invention of scheme 3 described two-wheeled motor vehicles.
In addition, the invention according to scheme 4 described two-wheeled motor vehicles is characterized in that, between aforementioned conduit and aforementioned first energy chamber, is provided with the limiting member of limit air influx.
In addition, the invention according to scheme 5 described two-wheeled motor vehicles is characterized in that, the aforementioned limitations member has and the corresponding aperture area of the frequency of air inlet sound.
According to the present invention, owing on vehicle body frame, connect air flue be set, along the fore-and-aft direction of vehicle body the extraneous air that the extraneous air introducing port from aforementioned vehicle body frame the place ahead is imported being set is directed to the two-wheeled motor vehicle of the conduit in the aforementioned air flue, on aforementioned conduit, has peristome, and has an energy chamber that is communicated with aforementioned conduit, aforementioned energy chamber is arranged at the hollow bulb of supporting functions functions of components parts carry member, so, when throttle gate is opened rapidly etc. under the situation, by the temporary transient air that replenishes energy chamber, can relax the negative pressure variation in the conduit that the switching by throttle gate causes, simultaneously, can relax the pipe resonance of conduit.In addition, energy chamber can utilize the functional component supporting member to be provided with effectively.
In addition, owing on vehicle body frame, connect air flue be set, along the fore-and-aft direction of vehicle body the extraneous air that the extraneous air introducing port from aforementioned vehicle body frame the place ahead is imported being set is directed to the two-wheeled motor vehicle of the conduit in the aforementioned air flue, on aforementioned conduit, has peristome, and has an energy chamber that is communicated with aforementioned conduit, aforementioned energy chamber is positioned at the top of aforementioned conduit, be provided with to the left and right from this conduit with stretching out, so, when throttle gate is opened rapidly etc. under the situation, by the temporary transient air that replenishes energy chamber, the negative pressure variation in the conduit that the switching by throttle gate causes can be relaxed, simultaneously, the pipe resonance of conduit can be relaxed.In addition, can utilize the space of conduit top, effectively and energy chamber is set with guaranteeing capacity.And then, because energy chamber is positioned at the top of conduit,, and be not easy to accumulate water etc. so water etc. are difficult to invade in the energy chamber.
And then, when when the conduit upstream side of comparing with aforementioned peristome is provided with current plate, by with the synergy of current plate, can relax the pulse pneumatic that causes by negative pressure variation in the conduit etc., and it is carried out rectification.
In addition, owing on vehicle body frame, connect air flue be set, along the fore-and-aft direction of vehicle body the extraneous air that the extraneous air introducing port from aforementioned vehicle body frame the place ahead is imported being set is directed to the two-wheeled motor vehicle of the conduit in the aforementioned air flue, aforementioned conduit has the current plate member that is installed in this supravasal split, at least a portion of aforementioned current plate member forms energy chamber, so, when throttle gate is opened rapidly etc. under the situation, by the temporary transient air that replenishes energy chamber, can relax the negative pressure variation in the conduit that the switching by throttle gate causes, simultaneously, can relax the pipe resonance of conduit.In addition, owing to utilize the part of current plate member that energy chamber is set, so, can saving member.
In addition, when between aforementioned conduit and aforementioned energy chamber, being provided with the limiting member of limit air influx, can freely change the frequency-response data of air inlet sound.
In addition, when aforementioned limiting member has the corresponding aperture area of frequency with the air inlet sound, can become resonant chamber with desirable frequency-response data.
Description of drawings
Fig. 1 is the lateral plan of expression according to a kind of form of implementation of two-wheeled motor vehicle of the present invention.
Fig. 2 is near the planar view the pipe before the expression.
Fig. 3 is the anterior decomposition diagram of parts on every side.
Fig. 4 is the front elevation of upper body cover.
Fig. 5 is that the A of upper body cover shown in Figure 4 is to view.
The detailed icon of Fig. 6 conduit.
Fig. 7 is the cutaway view of conduit.
Fig. 8 be from oblique forward observation to the transparent view of conduit.
Fig. 9 is the transparent view from the observed conduit in oblique rear.
Figure 10 is the lateral plan that is illustrated in according to the instrument pillar in the another kind of form of implementation of two-wheeled motor vehicle of the present invention.
Figure 11 is the planar view of instrument pillar shown in Figure 10.
Figure 12 is the B-B line cutaway view of instrument pillar shown in Figure 11.
Figure 13 is the cutaway view that is illustrated in according to the instrument pillar in another form of implementation of two-wheeled motor vehicle of the present invention.
The specific embodiment
Below, form of implementation of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the lateral plan of expression according to a kind of form of implementation of two-wheeled motor vehicle of the present invention, Fig. 2 is near the planar view the pipe before the expression, Fig. 3 is the anterior decomposition diagram of parts on every side, Fig. 4 is the front elevation of upper body cover, Fig. 5 is that the A of upper body cover shown in Figure 4 is to view, Fig. 6 is the detailed icon of conduit, Fig. 7 is the cutaway view of conduit, Fig. 8 be from oblique forward observation to the transparent view of conduit, Fig. 9 is the transparent view from the observed conduit in oblique rear, Figure 10 is the lateral plan that is illustrated in according to the instrument pillar in the another kind of form of implementation of two-wheeled motor vehicle of the present invention, Figure 11 is the planar view of instrument pillar shown in Figure 10, Figure 12 is the B-B line cutaway view of instrument pillar shown in Figure 11, and Figure 13 is the cutaway view that is illustrated in according to the instrument pillar in another form of implementation of two-wheeled motor vehicle of the present invention.
As shown in Figures 1 and 2, two-wheeled motor vehicle 1 has vehicle body frame 6, and vehicle body frame 6 is by constituting with the lower part: preceding pipe 61; Pipe 61 oblique pair of right and left main car frame 62 of extending of below rearward before this; Connect the pair of right and left pivot plate 63 that is arranged on these main car frame 62 rears; On even keel connects the crossbeam 64 of these pivot plates 63 mutually.And, as shown in Figure 6, respectively on each main car frame 62, with the junction of preceding pipe 61 near, connect and form free gas path 26, be connected with airfilter 31 at the rear of air flue 26.
In addition, as shown in Figure 2, vehicle body frame 6 separately is made of four aluminum casting parts, in more detail, and by separately constituting, that is: with the front portion and the preceding pipe 61 integrated front tube portion 61A that form of each main car frame 62 with lower member; The pair of right and left main car frame 62A of portion based on the middle body of each main car frame 62; With the rear portion and the pair of right and left pivot plate 63 integrated pivot board 63A that form that couple together via crossbeam 64 of each main car frame 62, and, these parts welded joint are integral.
In addition, as shown in Figure 1, front fork 3 is connected on the preceding pipe 61 of vehicle body frame 6 free to rotately.In the bottom of front fork 3, but free rotary ground supporting the front-wheel 2 that is equipped with the hydraulic type plate disc brake, above front-wheel 2, with the form that is bearing on the front fork 3 front fender apron 20 is installed.In addition, steering tiller 5 is installed in the upper end of front fork 3.
In addition, as shown in Figure 1, water-cooled tandem 4 cylinder horizontal arrangement type driving engines 19 are loaded into the central portion of vehicle body frame 6, in the left and right sides of driving engine 19, with vehicle body cover 8 in the middle of being equipped with being connected to form detachable on the upper body cover 7.And then, below driving engine 19, with the form detachable on the vehicle body cover 8 in the middle of being connected to bottom vehicle body cover 9 is installed.In addition, Fuel Tank 21 is positioned in the top of driving engine 19, at the rear of Fuel Tank 21 front seat 22 is installed.Back vehicle seat (flapper-bracket) 51 is installed at the rear of front seat 22, on the vehicle seat 51 of back, shoulder harness 52 is installed.Downside at front seat 22 and back vehicle seat 51 is equipped with back vehicle body cover 41 and rear mudguard 42, and stoplight stop lamp 43, pair of right and left turning indicator 44 are installed on rear mudguard 42.
In addition, as shown in Figure 1, but swing arm (back vent) 23 at the rear lower portion free swaying ground supporting of vehicle body frame 6, in the rearward end of swing arm 23, at the following trailing wheel 25 of can free rotary ground supporting the chain drive formula that has the hydraulic type plate disc brake of rear mudguard 42.
As shown in Figures 2 and 3, four bolts 83 of conduit 71 usefulness of fiberglass-reinforced plastic system are installed on the vehicle body frame 6, as shown in Figure 6, the exhausr port 71b of the rear end of conduit 71 is communicated with the air flue 26 of vehicle body frame 6.Be formed with four pillar fastening part 71d on the top of conduit 71, instrument pillar 74 usefulness Screws are fixed on the 71d of these pillar fastening parts.Two hollow bulbs (energy chamber) 74a about instrument pillar 74 has, to shown in Figure 8, two peristome 71c are communicated with conduit 71 these hollow bulbs 74a about conduit 71 top via being formed on as Fig. 6.In addition, as shown in Figures 2 and 3, form three instrument installation sheet 74b in the central upper of instrument pillar 74, as functional component with speed meter 75 bolt ups to these instrument installation sheets 74b.And then two one group mirror installation portion 74c is formed respectively at the top at the two ends, the left and right sides of instrument pillar 74, as functional component, upper body cover 7 and pair of right and left back mirror 30 is fastened on these mirror installation portions 74c together.That is, on each back mirror 30, connect respectively and wear two bolt hole 30a, connect the bolt hole 7c that wears two group at the two ends, the left and right sides of upper body cover 7 respectively.And by bolt 85 is inserted in-and-out bolt hole 7c, 30a, screw thread fit to mirror installation portion 74c, pair of right and left back mirror 30 and upper body cover 7 is fastening together, and upper body cover 7 is clamped between back mirror 30 and the instrument pillar 74.And then extremely with shown in 5, two lamp formula head lamps 28 (28A, 28B), front windshield glass 29, pair of right and left front blinker 27 are installed on the upper body cover 7 as Fig. 1, Fig. 3.
In addition, as shown in Figure 3, the netted ventipane of metallic (bird prevention net (bird removes け)) 72, neoprene system adaptor union 73 are installed on the admission port 71a of front end of conduit 71 successively, and the extraneous air introducing port 7a of upper body cover 7 is communicated with conduit 71 with the form that insertion is coupled on the adaptor union 73.In addition, as shown in Figures 3 and 4, the extraneous air introducing port 7a of upper body cover 7, its upper end 7b forms the shape of protruding downwards, has good surface appearance.In addition, as shown in Figure 4, each head lamp 28A, 28B, its inside lower end 28a points to the lower end of the extraneous air introducing port 7a of upper body cover 7 respectively, simultaneously, as Fig. 4 and shown in Figure 5, the extraneous air introducing port 7a of upper body cover 7 is longer than the height (length of longitudinal direction) of head lamp 28, and, present the shape of vertical length of the horizontal broadening of direction.Therefore, can use two spaces between head lamp 28A, the 28B effectively, the cross section of guaranteeing conduit 71 obtains high intake efficiency.
In addition, to shown in Figure 9, in conduit 71, erect at the upstream side of peristome 71c current plate 78 is set, simultaneously, extend respectively to the left and right from the left and right sides of current plate 78 space bar 79 is set, utilize current plate 78 and space bar 79 to constitute current plate members 88 as Fig. 7.In addition, by these space bars 79 that the part of the upper space in the conduit 71 is spaced apart, about form resonant chamber (energy chamber) 84 independently.In addition, as shown in Figures 2 and 3, these resonant chambers 84 are positioned at the below of the pillar fastening part 71d of conduit 71.To shown in Figure 9, each communicating pipe 80 cylindraceous (80A, 80B) is assembled on each space bar 79 in the mode with space in the conduit 71 and resonant chamber 84 connections as Fig. 6, and the pipe range of described two communicating pipes 80A, 80B differs from one another.In addition, the left and right sides of current plate 78 respectively with from space bar 79 branches and rearward tiltedly below the bevelled form about extend the first dripping board 79a be set, simultaneously, oblique lower position at this first dripping board 79a, separate certain interval, second dripping board 81 is set rearward tiltedly to extend about the bevelled form of below.And then as shown in Figure 8, on the inwall of conduit 71, tiltedly the below forms a plurality of thin strengthening rib 82 that has both impermeable role in the wings.
In two-wheeled motor vehicle 1 with said structure, because instrument pillar 74 has hollow bulb 74a, so, when suppressing the weight increase, can guarantee rigidity.
In addition, when starting the driving engine 19 of two-wheeled motor vehicle 1, extraneous air passes through conduit 71 and airfilter 31 from the extraneous air introducing port 7a of upper body cover 7, to driving engine 19 side supplies, at this moment, produce inflow noise, but, owing to resonant chamber 84 was communicated with conduit 71 via communicating pipe 80, so, by the resonator effect, can make the inflow noise decay.
And, since about the pipe range of two communicating pipes 80A, 80B differ from one another, so under the situation of the bandwidth ratio broad of resonance frequency, and it is inferior to demonstrate a plurality of peak condition at resonance frequency, the resonance frequency of can decaying effectively.
In addition, in the driving process of two-wheeled motor vehicle 1, extraneous air (wind travels) is imported by the extraneous air introducing port 7a from upper body cover 7, by conduit 71 and airfilter 31 to driving engine 19 side supplies, but, because current plate 78 is set in conduit 71, so, can be with the air draught uniformization.
In addition, when by two-wheeled motor vehicle 1 when travelling in the rain, the rainwater that is blended in the extraneous air (wind travels) is immersed in the conduit 71 from the extraneous air introducing port 7a of upper body cover 7, but, owing in conduit 71, first and second dripping board 79a, 81 is set in mode with the air draught subtend, so, can stop rainwater to be immersed in the air flue 26.And then, owing to be formed on the effect that strengthening rib 82 on the inwall of conduit 71 is also brought into play water proof, so, the immersion of rainwater can further be stoped.
In addition, after slowing down, when throttle gate is opened rapid acceleration fully, from the suction quantity of the extraneous air introducing port 7a of upper body cover 7 sometimes moment deficiency, still, the hollow bulb 74a of instrument pillar 74 adjusts chamber (air storage place) as intake pressure and works, air process conduit 71 in the hollow bulb 74a is to driving engine 19 side supplies, so, can keep the air/fuel ratio balance, with two-wheeled motor vehicle 1 brish acceleration.Thereby, need not to be provided with separately in addition intake pressure and adjust the chamber, can improve the Design freedom of two-wheeled motor vehicle 1.
In addition, owing between the extraneous air introducing port 7a of upper body cover 7 and conduit 71, be provided with ventipane 72, so, in the process of moving, can prevent that bird or insect are in the extraneous air introducing port 7a intrusion conduit 71 of upper body cover 7.
In addition, in above-mentioned form of implementation, hollow bulb 74a for instrument pillar 74 is illustrated with the situation that conduit 71 is communicated with via peristome 71c, but, extremely shown in Figure 12 as Figure 10, by L shaped barrel-contoured separation chamber (limiting member) 90 hollow bulb 74a is communicated with conduit 71, can freely changes the frequency-response data of air inlet sound via the limit air influx.
Promptly, in this case, as Figure 11 and shown in Figure 12, along the ways 74d, the 74d that are formed on the roughly U font on the instrument pillar 74, utilize ultrasonic wave coating, will have regulation aperture area about two L shaped barrel- contoured separation chambers 90,90 be fixedly installed on the instrument pillar 74.Here, erect on the instrument pillar 74 be provided with about two pins 74e, 74e, simultaneously, in each separation chamber 90, form respectively and insert through hole 90a, will sell 74e and insert to penetrate into and insert in the through hole 90a and utilize ultrasonic wave coating to fixedly mount.And, these separation chambers 90,90, be installed on the instrument pillar 74 about two the lid 91,91 clampings forms, with about two hollow bulb 74a be communicated with conduit 71.
Like this, owing between conduit 71 and hollow bulb 74a, be provided with separation chamber 90, so the frequency of air inlet sound depends on the aperture area of this separation chamber 90.Thereby preparation has the separation chamber 90 of the detachable of various aperture areas, by correspondingly suitably selecting, install separation chamber 90 with the frequency of air inlet sound, can make the resonant chamber with desirable frequency-response data.
In addition, the shape of separation chamber 90 is not limited to L shaped tubular.For example, as shown in figure 13, also user's tubular separation chamber 90 alternatively.
In addition, in above-mentioned form of implementation, for the hollow bulb 74a that makes instrument pillar 74 play a part the energy chamber of negative pressure adjustment usefulness, the situation that makes resonant chamber 84 play a part the energy chamber used of reply air inlet is illustrated.But, also can make resonant chamber 84 play a part the energy chamber of negative pressure adjustment usefulness conversely, make the hollow bulb 74a of instrument pillar 74 play a part the energy chamber that the reply air inlet is used.Perhaps, both play a part the energy chamber of negative pressure adjustment usefulness also can to make the hollow bulb 74a of instrument pillar 74 and resonant chamber 84, and both play a part the energy chamber that the reply air inlet is used also can to make the hollow bulb 74a of instrument pillar 74 and resonant chamber 84.
The industrial possibility of utilizing
The present invention can be widely used in road sport(s) car (road sports) (Europe class), U.S. State's type, offroad vehicle, convertible car, various types of two-wheeled motor vehicles such as offroad racing.
Claims (6)
1. a two-wheeled motor vehicle connects on vehicle body frame air flue is set,
Fore-and-aft direction along vehicle body is provided with conduit, and the extraneous air that described conduit will import from the extraneous air introducing port in aforementioned vehicle body frame the place ahead is directed in the aforementioned air flue,
It is characterized in that described two-wheeled motor vehicle has peristome on aforementioned conduit, and have first energy chamber that is communicated with aforementioned conduit,
Aforementioned first energy chamber is arranged at the hollow bulb of the functional component supporting member that supports instrument at least,
Aforementioned hollow part is provided with from aforementioned conduit to the left and right in the top of aforementioned conduit with stretching out.
2. two-wheeled motor vehicle as claimed in claim 1 is characterized in that, at the air-flow upstream side of the conduit of comparing with aforementioned peristome current plate is set.
3. two-wheeled motor vehicle as claimed in claim 1 is characterized in that, aforementioned conduit has the current plate member that is installed to this supravasal split, forms second energy chamber of being divided out by at least a portion of the part of aforementioned conduit and aforementioned current plate member.
4. two-wheeled motor vehicle as claimed in claim 1 is characterized in that, is provided with the limiting member of limit air influx between aforementioned conduit and aforementioned first energy chamber.
5. two-wheeled motor vehicle as claimed in claim 4 is characterized in that, the aforementioned limitations member has and the corresponding aperture area of the frequency of air inlet sound.
6. two-wheeled motor vehicle as claimed in claim 1 is characterized in that, aforementioned functional parts carry member more is being provided with the installation portion that back mirror and vehicle body cover are installed by the vehicle-width direction outside than instrument support portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005379674 | 2005-12-28 | ||
| JP2005379674 | 2005-12-28 | ||
| JP2006238836 | 2006-09-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1990335A CN1990335A (en) | 2007-07-04 |
| CN100500467C true CN100500467C (en) | 2009-06-17 |
Family
ID=38212932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610162563 Expired - Fee Related CN100500467C (en) | 2005-12-28 | 2006-11-28 | Two-wheeled motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100500467C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3578404A1 (en) * | 2018-06-07 | 2019-12-11 | Kawasaki Jukogyo Kabushiki Kaisha | Saddle-riding vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5425491B2 (en) * | 2009-02-17 | 2014-02-26 | 本田技研工業株式会社 | Air cleaner structure for motorcycles |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354570A (en) * | 1979-09-21 | 1982-10-19 | Honda Giken Kogyo Kabushiki Kaisha | Arrangement of air cleaner for a motorcycle |
| CN2282604Y (en) * | 1996-06-24 | 1998-05-27 | 光阳工业股份有限公司 | Air inlet device for motorcycle engine |
| CN1369391A (en) * | 2001-01-30 | 2002-09-18 | 本田技研工业株式会社 | Air cleaner of motor bicycle |
-
2006
- 2006-11-28 CN CN 200610162563 patent/CN100500467C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354570A (en) * | 1979-09-21 | 1982-10-19 | Honda Giken Kogyo Kabushiki Kaisha | Arrangement of air cleaner for a motorcycle |
| CN2282604Y (en) * | 1996-06-24 | 1998-05-27 | 光阳工业股份有限公司 | Air inlet device for motorcycle engine |
| CN1369391A (en) * | 2001-01-30 | 2002-09-18 | 本田技研工业株式会社 | Air cleaner of motor bicycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3578404A1 (en) * | 2018-06-07 | 2019-12-11 | Kawasaki Jukogyo Kabushiki Kaisha | Saddle-riding vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1990335A (en) | 2007-07-04 |
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