Straddle type vehicle

Abstract

The invention provides a straddle type vehicle, comprising a frame unit comprising a head tube and a main bracket extending backwards from the head tube; the seat cushion is arranged on the main bracket of the frame unit; the air filtering unit is arranged on the main bracket of the frame unit and is positioned between the head tube and the seat cushion of the frame unit; the filter element is contained in the air filter shell and divides the internal space of the air filter shell into an unfiltered side space and a filtered side space; the air inlet pipe sucks air into the unfiltered side space; the communicating pipe is used for guiding the air entering the filtering side space through the filter element to the outside of the air filter shell, and the filter element is located between the air inlet pipe and the communicating pipe when viewed from the overlook direction.

Description

Technical Field

[0001] This invention relates to a motorcycle, and more particularly to a straddle-mounted vehicle. Background Technology

[0002] See Figure 1 Taiwanese Patent No. 1333917 discloses a motorcycle where the suspension 10 is positioned on one side of the rear wheel 19 in the vehicle width direction, and the air purifier 16 is positioned above the transmission case 150 of the engine 15 on the other side. With this design, when the transmission case 150 of the engine 15 swings, it is necessary to avoid interference or collision between the air purifier 16 and surrounding components. Furthermore, the air purifier 16 is directly exposed outside the body cover 13, making it susceptible to dust contamination and rainwater intrusion. Therefore, a solution is needed. Summary of the Invention

[0003] [The problem that the invention aims to solve]

[0004] Therefore, the object of the present invention is to provide a straddle-type vehicle.

[0005] [Technical means to solve the problem]

[0006] Therefore, the present invention provides a straddle-type vehicle comprising: a frame unit including a head tube and a main support extending rearward from the head tube; a seat disposed on the main support of the frame unit; and an air filter unit disposed on the main support of the frame unit and located between the head tube and the seat, and comprising an air filter housing, a filter element housed within the air filter housing and dividing the internal space of the air filter housing into an unfiltered side space and a filtered side space, an intake pipe for drawing air into the unfiltered side space, and a connecting pipe for guiding the air entering the filtered side space through the filter element to the outside of the air filter housing, wherein, when viewed from a top view, the filter element is located between the intake pipe and the connecting pipe.

[0007] In some embodiments of the present invention, an oil tank is further included, which is disposed between the seat cushion and the air filter housing of the air filter unit and located below the seat cushion, wherein, when viewed from the side, the center of one oil tank is located in front of the foremost front end of one seat cushion, and the foremost front end of the oil tank is approximately located directly below the rear end of the air filter housing.

[0008] In some embodiments of the present invention, the connecting pipe of the air filtration unit has a connecting pipe inlet located in the filter side space and away from the filter element.

[0009] In some embodiments of the present invention, two shock absorbers are also included on the frame unit, wherein the air intake pipe of the air filter unit has an air intake port, and when viewed from a top view, the air intake pipe and one of the shock absorbers are located on the same side of the vehicle centerline, and the distance between the air intake port and the vehicle centerline is greater than the distance between the shock absorber and the vehicle centerline.

[0010] In some embodiments of the present invention, when viewed from a top view, the filter element is disposed obliquely within the air filter housing, so that the filter element is not parallel or perpendicular to the center line of a vehicle.

[0011] In some embodiments of the invention, the air filter housing has a front housing and a rear housing combined with the front housing and extending toward the seat cushion, and the connecting pipe has a connecting pipe outlet located on the rear housing.

[0012] In some embodiments of the present invention, the rear housing of the air filter housing is provided with a service port facing the seat cushion, and the air filtration unit further includes a service cover that can be detachably closed to the service port, through which the filter element can be removed when the service cover is removed.

[0013] In some embodiments of the invention, two shock absorbers are also included on the frame unit, and the front surface of the front housing of the air filter housing forms two recesses located behind the shock absorbers respectively.

[0014] In some embodiments of the present invention, a main switch is also included, disposed between the head tube of the frame unit and the air filter unit, wherein the front surface of the front housing of the air filter housing forms a main switch receiving recess for receiving the main switch, and when viewed from a top view, the main switch overlaps at least partially with the air filter unit.

[0015] In some embodiments of the present invention, a housing portion disposed on the frame unit is further included, wherein the housing portion includes a central upper cover located above the air filter unit and a central rear cover located behind the air filter unit, the central upper cover and the central rear cover together covering the air filter unit.

[0016] [The effects of the invention]

[0017] The advantages of this invention are as follows: (a) By utilizing the unused space between the head tube and the seat to house the air filter unit, the components of the air filter unit can be compacted and located away from the engine; (b) By utilizing the unused space between the head tube, the seat, and the fuel tank to house the air filter housing, the components of the air filter unit can be compacted and located away from the engine; (c) Because the air inlet of the connecting pipe is far from the filter element, the filter element can be protected from excessive negative pressure suction from the engine, and intake inertia can be increased; (d) Because the distance between the air inlet of the intake pipe and the center line of the vehicle is greater than the distance between the shock absorber located on the same side and the center line of the vehicle, the intake passage of the intake pipe is smooth and not easily blocked; (e) The filter element is inclined relative to the center line of the vehicle, thus reducing the air intake... (f) The dimensions of the air filter unit in the front-rear direction (i.e., along the vehicle's centerline) or the vehicle width direction are such that the dimensions of the air filter housing in the front-rear direction or the vehicle width direction are not too large; (g) When the service cover of the air filter unit is removed, the filter element can be taken out through the service port, thus facilitating the replacement of the filter element; (h) The recesses of the air filter housing prevent the shock absorbers from colliding with the air filter housing during steering; (h) The front surface of the front housing of the air filter housing forms the main switch receiving recess, and when viewed from above, the main switch and the air filter unit overlap by at least a portion, thus achieving the effect of compact configuration of the main switch and the air filter unit; (i) The central top cover and the central rear cover together cover the air filter unit, thus preventing the air filter unit from being contaminated by dust or rainwater. Attached Figure Description

[0018] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a side view illustrating the existing straddle-type vehicle;

[0020] Figure 2 This is a side view illustrating an embodiment of the straddle-type vehicle of the present invention;

[0021] Figure 3 This is a partial sectional side view illustrating the embodiment;

[0022] Figure 4 This is a side view illustrating an embodiment in which a housing portion is omitted;

[0023] Figure 5 This is a partial sectional top view illustrating the embodiment;

[0024] Figure 6This is a partial sectional top view illustrating that an air filtration unit of this embodiment includes an air filter housing, a filter element, an air inlet pipe, and a connecting pipe, wherein the filter element is inclinedly disposed within the air filter housing; and

[0025] Figure 7 This is a side view illustrating the air filter unit and components such as an engine in this embodiment.

[0026] List of reference numerals

[0027] 2····Straddle-type vehicles

[0028] 20··· Seat Cushion

[0029] 201···Seat cushion front edge

[0030] 21··· Chassis Unit

[0031] 210···Head tube

[0032] 211···Main Support

[0033] 22··· Engine

[0034] 23···Shock absorbers

[0035] 24··· Fuel Tank

[0036] 240··· Fuel Tank Center

[0037] 25··· Air Filter Unit

[0038] 251···Air Filter Housing

[0039] 2511··Front Housing

[0040] 2512·· Rear Housing

[0041] 2518··Concave part

[0042] 2519··Main switch receiving recess

[0043] 252··· filter element

[0044] 253···Intake pipe

[0045] 2531··Intake pipe air inlet

[0046] 254···Connecting pipe

[0047] 2541·· Connecting pipe air inlet

[0048] 2542·· Connecting pipe outlet

[0049] 255··· Repair Cover

[0050] 258···Unfiltered side space

[0051] 259···Filter side space

[0052] 26···Main Switch

[0053] 27···Dragon Head

[0054] 28···Outer shell

[0055] 281···Central Top Cover

[0056] 282···Central Rear Cover

[0057] 291···Front Wheel

[0058] 292··· Rear wheel

[0059] C···· Center line of the car. Detailed Implementation

[0060] See Figures 2 to 7 An embodiment of the straddle-type vehicle 2 of the present invention includes a front wheel 291, a rear wheel 292, a frame unit 21, a seat 20, an air filter unit 25, two shock absorbers 23, a main switch 26, a housing 28, a fuel tank 24, an engine 22, and a handlebar 27.

[0061] like Figures 2 to 4 As shown, in this embodiment, the frame unit 21 includes a head tube 210 and a main support 211 extending rearward from the head tube 210. The seat cushion 20 is disposed on the main support 211.

[0062] like Figures 3 to 6 As shown, in this embodiment, the air filtration unit 25 is disposed on the main support 211 and located between the head tube 210 and the seat cushion 20. It includes an air filter housing 251, a filter element 252 housed within the air filter housing 251 and dividing the internal space of the air filter housing 251 into an unfiltered side space 258 and a filtered side space 259, an air intake pipe 253 that draws air into the unfiltered side space 258, and a connecting pipe 254 that guides the air flowing through the filter element 252 into the filtered side space 259 to the outside of the air filter housing 251. Viewed from above, the filter element 252 is located between the air intake pipe 253 and the connecting pipe 254. Therefore, since the air filter unit 25 is installed in the space between the head tube 210 and the seat 20, the components of the air filter unit 25 can be compacted and can be moved away from the engine 22.

[0063] In this embodiment, the oil tank 24 is disposed between the seat cushion 20 and the air filter housing 251 of the air filter unit 25, and is located below the seat cushion 20. From... Figure 3 Viewed from the side, the center 240 of the fuel tank 24 is located in front of the foremost point 201 of the seat cushion 20, and the foremost point of the fuel tank 24 is approximately directly below the rearmost point of the air filter housing 251. Therefore, in this embodiment, by utilizing the unused space between the head tube 210, the seat cushion 20, and the fuel tank 24 to house the air filter housing 251, the components of the air filter unit 25 can be compacted and positioned away from the engine 22.

[0064] In this embodiment, the shock absorbers 23 are mounted on the frame unit 21. The air intake pipe 253 of the air filter unit 25 has an air intake port 2531. From... Figure 5 When viewed from above, the air intake pipe 253 and one of the shock absorbers 23 are located on the same side of the vehicle's centerline C. The distance between the air intake port 2531 of the air intake pipe and the vehicle's centerline C is greater than the distance between the shock absorber 23, which is located on the same side, and the vehicle's centerline C. Therefore, the air intake passage of the air intake pipe 253 is smooth and not easily blocked.

[0065] like Figure 5 , 6 As shown, when viewed from above, the filter element 252 is inclined within the air filter housing 251, so that the filter element 252 is neither parallel nor perpendicular to the vehicle centerline C. Therefore, since the filter element 252 is inclined relative to the vehicle centerline C in this embodiment, the size of the air filter unit 25 in the vehicle longitudinal direction (i.e., along the vehicle centerline C) or the vehicle width direction can be reduced, thus avoiding the air filter housing 251 from being too large in the vehicle longitudinal direction or the vehicle width direction.

[0066] like Figure 3 , 5 As shown in Figure 6, in this embodiment, the air filter housing 251 has a front housing 2511 and a rear housing 2512 that is combined with the front housing 2511 and extends toward the seat cushion 20. The connecting pipe 254 has a connecting pipe inlet 2541 located in the filter-side space 259 and away from the filter element 252, and a connecting pipe outlet 2542 located on the rear housing 2512. Because the connecting pipe inlet 2541 is away from the filter element 252, the wear of the filter element 252 due to excessive negative pressure suction from the engine 22 can be avoided, and intake inertia can be increased.

[0067] In this embodiment, the rear housing 2512 of the air filter housing 251 is provided with a service port facing the seat cushion 20. The air filtration unit 25 also includes a service cover 255 that detachably closes the service port. Therefore, when the service cover 255 is removed, the filter element 252 can be taken out through the service port, facilitating the replacement of the filter element 252.

[0068] In this embodiment, the front surface of the front housing 2511 of the air filter housing 251 forms two recesses 2518 located behind the shock absorbers 23, so when the motorcyclist operates the handlebars 27 to turn the shock absorbers 23, the shock absorbers 23 can be prevented from colliding with the air filter housing 251 during the turning process.

[0069] like Figures 3 to 6 As shown, the main switch 26 is disposed between the head tube 210 and the air filter unit 25. The front surface of the front housing 2511 of the air filter housing 251 also forms a main switch receiving recess 2519 for accommodating the main switch 26, and from... Figure 5 , 6 When viewed from above, the main switch 26 and the air filter unit 25 overlap by at least a portion, thus achieving the effect of compact configuration of the main switch 26 and the air filter unit 25.

[0070] In this embodiment, the outer casing 28 is disposed on the frame unit 21. Wherein, as... Figure 3 As shown, the outer casing 28 includes a central upper cover 281 located above the air filter unit 25 and a central rear cover 282 located behind the air filter unit 25. The central upper cover 281 and the central rear cover 282 together cover the air filter unit 25, thus preventing the air filter unit 25 from being contaminated by dust or rainwater.

[0071] In summary, the present invention provides at least the following advantages and effects for a motorcycle: (a) because the air filter unit 25 is housed in the space between the head tube 210 and the seat 20, the components of the air filter unit 25 can be compacted and located away from the engine 22; (b) because the air filter housing 251 is housed in the space between the head tube 210, the seat 20, and the fuel tank 24, the components of the air filter unit 25 can be compacted and located away from the engine 22. (c) Because the air inlet 2541 of the connecting pipe is far from the filter element 252, the filter element 252 can be protected from damage due to excessive negative pressure suction of the engine 22, and the intake inertia can be increased; (d) Because the distance between the air inlet 2531 of the intake pipe and the center line C of the vehicle is greater than the distance between the shock absorber 23 located on the same side and the center line C of the vehicle, the intake passage of the intake pipe 253 is smooth and not easily blocked; (e) The filter element 252 is inclined relative to the center line C of the vehicle, thus reducing the air intake pressure. (f) The dimensions of the air filter unit 25 in the longitudinal direction (i.e., along the vehicle centerline C) or the vehicle width direction prevent the air filter housing 251 from being too large in the longitudinal direction or the vehicle width direction; (g) When the service cover 255 of the air filter unit 25 is removed, the filter element 252 can be taken out through the service port, thus facilitating the replacement of the filter element 252; (h) The recesses 2518 of the air filter housing 251 prevent the shock absorbers 23 from colliding with the air filter housing 251 during cornering; The front surface of the front housing 2511 of the body 251 forms the main switch receiving recess 2519. When viewed from above, the main switch 26 and the air filter unit 25 overlap by at least a portion, thus achieving the effect of compact configuration of the main switch 26 and the air filter unit 25; (i) the central top cover 281 and the central rear cover 282 together cover the air filter unit 25, thus preventing the air filter unit 25 from being contaminated by dust or invaded by rainwater; thus, the purpose of the present invention can indeed be achieved.

[0072] The above description is merely an embodiment of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the present invention shall still fall within the scope of the patent of the present invention.

Claims

1. A straddle-type vehicle, characterized in that, Include: A frame unit includes a head tube and a main support extending rearward from the head tube; A pad is disposed on the main support of the frame unit; and An air filtration unit is disposed on the main support of the frame unit and located between the head tube and the seat of the frame unit. It includes an air filter housing, a filter element housed in the air filter housing and dividing the internal space of the air filter housing into an unfiltered side space and a filtered side space, an intake pipe for drawing air into the unfiltered side space, and a connecting pipe for guiding the air that has entered the filtered side space through the filter element to the outside of the air filter housing. When viewed from a top position, the filter element is located between the intake pipe and the connecting pipe.

2. The straddle-type vehicle according to claim 1, characterized in that, It also includes an oil tank disposed between the seat cushion and the air filter housing of the air filter unit and located below the seat cushion, wherein, when viewed from the side, the center of one oil tank is located in front of the foremost front end of one seat cushion, and the foremost front end of the oil tank is approximately located directly below the rear end of the air filter housing.

3. The straddle-type vehicle according to claim 1, characterized in that, The air filtration unit has a connecting pipe with an air inlet located in the filter side space and away from the filter element.

4. The straddle-type vehicle according to claim 1, characterized in that, It also includes two shock absorbers mounted on the frame unit, wherein the air intake pipe of the air filter unit has an air intake port. When viewed from above, the air intake pipe and one of the shock absorbers are located on the same side of the vehicle centerline, and the distance between the air intake port and the vehicle centerline is greater than the distance between the shock absorber and the vehicle centerline.

5. The straddle-type vehicle according to claim 1, characterized in that, When viewed from above, the filter element is inclined within the air filter housing so that it is neither parallel nor perpendicular to the centerline of the vehicle.

6. The straddle-type vehicle according to claim 1, characterized in that, The air filter housing has a front housing and a rear housing that is combined with the front housing and extends toward the seat cushion, and the connecting pipe has a connecting pipe outlet located on the rear housing.

7. The straddle-type vehicle according to claim 6, characterized in that, The rear housing of the air filter housing is provided with a service port facing the seat cushion. The air filtration unit also includes a service cover that can be detachably closed to the service port. When the service cover is removed, the filter element can be taken out through the service port.

8. The straddle-type vehicle according to claim 6, characterized in that, It also includes two shock absorbers mounted on the frame unit, with two recesses formed on the front surface of the front housing of the air filter housing, respectively located behind the shock absorbers.

9. The straddle-type vehicle according to claim 1, characterized in that, It also includes a main switch disposed between the head tube and the air filter unit of the frame unit, wherein the front surface of the front housing of the air filter housing forms a main switch receiving recess for receiving the main switch, and when viewed from a top view, the main switch overlaps at least partially with the air filter unit.

10. The straddle-type vehicle according to claim 1, characterized in that, It also includes a housing portion disposed on the frame unit, wherein the housing portion includes a central upper cover located above the air filter unit and a central rear cover located behind the air filter unit, the central upper cover and the central rear cover together covering the air filter unit.

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