TWI671224B - Housing structure of straddle type vehicle - Google Patents

Abstract

In the invention, the shell member and the functional parts of the vehicle body covered by the shell member can be taken as a part of the design of the vehicle, so as to improve the design, and can cover the functional parts of the vehicle body by the shell member.

The shell structure of a straddle-type vehicle is provided with a vehicle body functional part 36 disposed below the main frame 16 and a housing member 50 covering the vehicle body functional part 36. The vehicle body functional part 36 includes a frame body 60 and a front-rear direction. The cover member 61 is fastened and fixed to the front face of the frame 60. The cover member 61 is provided with a recessed portion on the left and right sides, and the shell member 50 is provided on the left and right so as to cover the functional parts 36 of the vehicle body from the side One pair is attached to the vehicle body functional part 36, and the outer shell member 50 is provided at the front end with an inner extension 85 extending toward the inner side in the vehicle width direction. The front surface of the portion 85 is on the same plane.

Description

Shell structure of straddle type vehicle

The invention relates to a shell structure of a straddle type vehicle.

Conventionally, a shell structure of a straddle-type vehicle is known (for example, refer to Patent Document 1), which includes a main frame extending from a head pipe toward the rear and an air cleaner disposed below the main frame. Car body functional parts; and housing components that cover the air cleaner. In Patent Document 1, the outer shell member extends from the fuel tank, which is another functional part of the vehicle body, across the main frame and extends downward to cover the air cleaner.

[Prior technical literature] [Patent Literature]

Patent Document 1: International Publication No. 2013/179703

However, the above-mentioned shell structure is a general structure in which a shell member provided as a vehicle body on a functional part (fuel tank) is extended and only covers a functional body part (air filter) from the side, and is an external decorative part (Shell member) A general design that hides functional parts and uses the appearance of the shell member. The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to use a casing member and a vehicle body functional part covered by the casing member as part of the design of the vehicle to improve designability, and the casing member may cover the vehicle body functional part.

This specification contains the entire contents of Japanese Patent Application No. 2017-191480 filed on September 29, 2017. The shell structure of the straddle-type vehicle according to the present invention is provided with a main frame (16) extending from the head pipe (15) toward the rear, functional parts (36) of the vehicle body arranged below the main frame (16), and a cover. The shell member (50) of the vehicle body functional part (36) is characterized in that the vehicle body functional part (36) includes a frame body (60) and is fixed to the frame body (60) in a forward-backward direction. The front cover member (61), the cover member (61) is provided on the left and right side portions with a recessed portion (72) that is recessed toward the rear, and the shell member (50) covers the vehicle body functional parts from the side (36) A pair of right and left are installed on the vehicle body functional parts (36), and the shell member (50) is provided at the front end with an inner extension portion (85) extending toward the inner side in the vehicle width direction, and the inner side extension The portion (85) is fitted to the segment portion (72) of the cover member (61), and the cover member (61) and the front surface of the inner extension portion (85) are on the same plane.

In addition, in the above invention, a locking portion (67) for locking the cover member (61) to the frame body (60) may be provided in the section portion (72) and located in the inner extension portion. (85) and the cover member (61). In addition, in the above invention, the vehicle body functional part (36) may be an air filter (36), and the air filter (36) may be supported by the main frame (16). Between the engine (10) and the main frame (16), after the air filter (36), the suction system parts (37) of the engine (10), the casing member (50), The suction system parts (37) are covered from the side so as to extend rearward than the air cleaner (36).

Furthermore, in the above invention, an inclined surface (74) recessed toward the rear may be provided at the front surface of the cover member (61) and at the central portion (71) in the vehicle width direction. When the vehicle is viewed from the side, the inclination The surface (74) is inclined downwards. In addition, In the Ming, the segment portion (72) may be provided on the upper portion of the cover member (61) with a widened portion (76) extending inward in the vehicle width direction and increasing in width from left to right, and the inclined surface (74) It is arranged under the cover member (61).

The shell structure of a straddle-type vehicle according to the present invention includes a main frame extending rearward from a head pipe, a body functional part disposed below the main frame, a shell member covering the body functional part, and a body functional part. It is provided with a frame body and a cover member which is fixed to the front surface of the frame body in a forward and backward direction. The cover member is provided with a recessed portion at the left and right side portions. A pair of right and left are installed on the vehicle body functional parts. The housing member is provided at the front end with an inner extension extending inward in the vehicle width direction. The inner extension is fitted to a section of the cover member. The front is on the same plane. According to this configuration, the inner extension of the shell member that covers the functional parts of the vehicle body from the side is fitted to the section of the cover member of the functional body of the vehicle body and is on the same plane as the front face of the cover member, so the cover member can be embodied And the design of the shell member can be used as a part of the appearance of the car body functional parts located below the main frame, which can improve the design. In addition, the inner extension portion may cover the locking direction of the cover member to the frame body. In addition, the vehicle body functional parts can be covered by a housing member mounted on the vehicle body functional parts.

In addition, in the above-mentioned invention, the locking portion that locks the cover member to the frame may be provided at the segment portion and located between the inner extension portion and the cover member. According to this configuration, the locking portion can be hidden by the inner extension portion, the appearance can be improved, and the locking portion can be prevented from entering from the outside. In addition, in the above invention, the functional part of the vehicle body may be an air filter, which is located between the engine supported by the main frame and the main frame and disposed behind the air filter. Parts of the suction system of the engine, The housing member extends rearward of the air cleaner by covering the parts of the suction system from the side. According to this configuration, it is possible to cover the components of the air intake system by the casing member, to protect the components of the air intake system, and to improve the appearance. In addition, a part of the larger air filter disposed below the main frame is covered with a shell member, and the air filter and the shell member are used to reflect a sense of design, and can be used to impart functional parts to the car body (air filter Device) characteristic appearance.

Further, in the above invention, an inclined surface recessed toward the rear may be provided at the center of the vehicle width direction on the front surface of the cover member, and when the vehicle is viewed from the side, the inclined surface is inclined downwardly downward. According to this configuration, the traveling wind can be guided to the engine along the inclined surface. Further, in the above invention, the segment portion may be provided on the upper portion of the cover member with a widened portion extending inward in the vehicle width direction and increasing the left and right widths, and the inclined surface may be provided on the lower portion of the cover member. According to this configuration, the case member can be firmly attached to the cover member by the widened portion, and the shape of the abutting surface can be strongly impressed to give the appearance a characteristic, which can improve the design. In addition, since the widened portion is provided on the upper portion of the cover member, it is easy to secure a space for installing the inclined surface in the lower portion of the cover member.

1‧‧‧ Two-wheeled locomotive (straddle type vehicle)

2‧‧‧ front wheel

2a‧‧‧ axle

3‧‧‧ rear wheel

3a‧‧‧ axle

10‧‧‧ Engine

11‧‧‧Control system

12‧‧‧ swing arm

13‧‧‧ seat cushion

15‧‧‧ head tube

16‧‧‧Main frame

17‧‧‧ pivot bracket

18‧‧‧ seat cushion frame

18a‧‧‧Upper extension

18b‧‧‧Rear Extension

19‧‧‧ Sub-frame

20‧‧‧ Steering shaft

21‧‧‧Top Bridge

22‧‧‧ bottom bridge

23‧‧‧ Fork

24‧‧‧Handle

25‧‧‧ Pivot

26‧‧‧ Rear shock

30‧‧‧Crank case

31‧‧‧Cylinder Department

31a‧‧‧Cylinder block

31b‧‧‧cylinder head

32‧‧‧engine hanger

33‧‧‧Chain

34‧‧‧Exhaust pipe

34a‧‧‧ Silencer

35‧‧‧ Suction device

36‧‧‧Air Filter (Car Body Functional Parts)

37‧‧‧throttle body (part of suction system)

38‧‧‧ fuel supply device

39‧‧‧ Bracket

40‧‧‧ fuel tank

41‧‧‧ pedal

42‧‧‧Side tripod

43‧‧‧ headlight

44‧‧‧ Instrument Unit

45‧‧‧Front bezel

45a‧‧‧back end

46‧‧‧ tailgate

47‧‧‧Storage Box

50‧‧‧ shell member

50a‧‧‧back

51‧‧‧ bottom case

52‧‧‧ Bezel bracket

52a‧‧‧base

52b‧‧‧ wrist

52c‧‧‧bolt

53‧‧‧ opening

60‧‧‧Air filter box body (frame)

60a‧‧‧ Engagement Department

61‧‧‧ cover member

62‧‧‧Air Supply Pipe

63‧‧‧ next door

64‧‧‧air filter

65‧‧‧ flange

66‧‧‧Fixing holes

67‧‧‧ Cover member fixing (locking part)

68‧‧‧ Bolt

69a, 69b, 69c‧‧‧shell engaging part

69d‧‧‧Case fixing part

70‧‧‧ cover periphery

71‧‧‧ Central

71a‧‧‧Middle

71b‧‧‧upper

72‧‧‧ Section

72c‧‧‧lower

73‧‧‧ center line

74‧‧‧inclined surface

76‧‧‧ Widened

77‧‧‧junction

77a‧‧‧Lower junction

77b‧‧‧Middle junction

77c‧‧‧upper junction

78‧‧‧lock hole

79‧‧‧ lock hole

80‧‧‧ shell fixing member

81‧‧‧shell side wall

82‧‧‧shell wall

83a, 83b

83c‧‧‧ card

84‧‧‧Seat

85‧‧‧ inside extension

85a‧‧‧Inner edge

86‧‧‧ protrusion

C‧‧‧ cylinder axis

F‧‧‧ body frame

FR‧‧‧ front of the car body

LH‧‧‧ Left side of car body

UP‧‧‧ Above the body

W‧‧‧ driving wind

FIG. 1 is a left side view of a two-wheeled locomotive according to an embodiment of the present invention.

Fig. 2 is a left side view of the vehicle body frame.

FIG. 3 is a perspective view of a front portion of the two-wheeled locomotive viewed from the left front side.

FIG. 4 is a left side view of a peripheral portion of the engine in a state where a casing member is removed.

Fig. 5 is a perspective view of a peripheral portion of the air cleaner viewed from the left front side.

Fig. 6 is a front view of the air cleaner viewed from the front side with the cover member removed.

Fig. 7 is a front view of the air cleaner viewed from the front.

Fig. 8 is a side view of the housing member on the left side as viewed from the inside.

FIG. 9 is a perspective view of a peripheral portion of a housing member on the left side as viewed from the lower side.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in the description, the description of the directions of the front, back, left, right, and up and down, unless otherwise specified, is considered to be the same as the direction with respect to the vehicle body. In addition, the symbol FR shown in each figure indicates the front of the vehicle body, the symbol UP indicates the upper side of the vehicle body, and the symbol LH indicates the left side of the vehicle body.

FIG. 1 is a left side view of a two-wheeled locomotive 1 according to an embodiment of the present invention. In addition, in FIG. 1, a pair of left and right configurations is included, and only the left part is shown including the symbols. The two-wheeled locomotive 1 is a vehicle having a structure in which an engine 10 as a power unit is supported on a vehicle body frame F, and an operation system 11 is operably supported at the front end of the vehicle body frame F. The operation system 11 is operable The front wheel 2 is supported on the ground, and a swing arm 12 supporting the rear wheel 3 is provided on the rear side of the vehicle body frame F. The two-wheeled locomotive 1 is a straddle type vehicle, and a seat cushion 13 is provided above the rear part of the body frame F for the rider to ride in a straddle manner.

FIG. 2 is a left side view of the vehicle body frame F. FIG.

The vehicle body frame F includes a head pipe 15, a main frame 16, a pivot bracket 17, a seat cushion frame 18, and a pair of left and right sub frames 19 and 19. The head pipe 15 is provided at the front end of the vehicle body frame F and is located at the center of the vehicle width. The main frame 16 is formed in a single strip from the rear of the head pipe 15 and extends rearwardly downwardly. The pivot bracket 17 is the rear end of the autonomous frame 16 and extends downward. The seat cushion frame 18 includes an upper extension portion 18a extending rearward from the rear end of the autonomous frame 16 and a rear extension portion 18b extending rearward from the upper extension portion 18a. The sub-frames 19 and 19 are respectively extended from the left and right sides of the pivot bracket 17 toward the rear and upward and are connected to the rear portion of the cushion frame 18.

The steering system 11 includes a steering shaft 20 (FIG. 4), which is pivotally supported by the head pipe 15, a top bridge 21, which is fixed to the upper end of the steering shaft 20, and a bottom bridge 22, which is fixed to the lower end of the steering shaft 20; and A pair of front forks 23 and 23 are arranged on the left and right sides of the head pipe 15, and are supported by the top bridge 21 and the bottom bridge 22. The front wheel 2 is pivotally supported by the lower ends of the front forks 23 and 23 via the axle 2 a. The handlebar 24 for the occupant to operate the front wheel 2 is installed on the top bridge 21.

The swing arm 12 pivotally supports the front end portion on a pivot shaft 25 penetrating the pivot bracket 17 in the vehicle width direction, and swings up and down about the pivot shaft 25 as a center. The rear wheel 3 is pivotally supported by the rear end of the swing arm 12 via the axle 3a. A pair of left and right rear shock absorbers 26 and 26 are provided across the rear end portion of the swing arm 12 and the rear portion of the seat cushion frame 18.

The engine 10 includes a crank case 30 that supports a crank shaft extending in the vehicle width direction, and a cylinder portion 31 that extends forward from the front portion of the crank case 30. The cylinder section 31 includes a cylinder block 31 a that accommodates a piston, and a cylinder head 31 b provided with a drive valve mechanism. The engine 10 is an engine in which the cylinder axis C of the cylinder portion 31 extends substantially horizontally forward and backward. A transmission (not shown) is built in the crank case 30. The engine 10 is an engine hanger 32 that fixes the upper portion of the crank case 30 to the autonomous frame 16 and extends downward. In addition, the rear portion of the crank case 30 is fixed to the pivot bracket 17. The output of the engine 10 is transmitted to the rear wheel 3 via a chain 33 wound between the output shaft of the transmission and the rear wheel 3.

The exhaust pipe 34 of the engine 10 is drawn downward from the exhaust port of the cylinder head 31b and extended rearward, and is connected to the muffler 34a. The intake device 35 of the engine 10 is disposed between the cylinder portion 31 and the main frame 16. The suction device 35 is provided with: an air filter 36 (a functional part of the car body); a throttle body 37 (a suction system part) connected to a suction port above the cylinder head 31b; and a connecting pipe (not shown) (Shown), which connects the air cleaner 36 and the throttle body 37. The throttle body 37 is provided with a fuel supply device 38 (FIG. 4) that injects fuel into an intake passage of the intake device 35. The air taken into the air cleaner 36 is supplied to the engine 10 after the flow rate is adjusted by the throttle body 37.

The fuel tank 40 is arranged between the head pipe 15 and the seat cushion frame 18 above the main frame 16 and is supported by the main frame 16. The seat cushion 13 is disposed behind the fuel tank 40 and is supported from below by the rear side extension 18 b of the seat cushion frame 18. The pedals 41 and 41 for the occupant to place their feet are arranged in front of the lower end of the pivot bracket 17. The side stand 42 is mounted on the lower end of the pivot bracket 17.

The headlight 43 is arranged in front of the head pipe 15. The meter unit 44 is arranged in front of the top bridge 21. The front bezel 45 of the front wheel 2 is covered from above and is attached to the bottom bridge 22. The rear bezel 46 covering the rear wheel 3 from above is attached to the rear part of the vehicle body frame F. The two-wheeled locomotive 1 is provided with a storage box 47 arranged below the seat cushion 13 so as to cover the rear portion of the vehicle body frame F from the side. The two-wheeled locomotive 1 is provided with a pair of outer case members 50 and 50 covering the air cleaner 36 and a bottom case 51 covering the engine 10 from below.

FIG. 3 is a perspective view of the front portion of the two-wheeled locomotive 1 as viewed from the left front side. 1 and 3, the front bezel 45 is arranged between the left and right front forks 23 and 23 at the center of the vehicle width, and extends from above the front part of the front wheel 2 to above the rear end of the front wheel 2. The front bezel 45 is mounted on the bottom bridge 22 via a bezel bracket 52 provided on the upper surface of the rear part of the front bezel 45. The front bezel 45 is curved along the outer periphery of the front wheel 2 when viewed from the side. The bezel bracket 52 includes a plate-shaped base portion 52a attached to the front bezel 45 along the upper surface of the front bezel 45, and arm portions 52b and 52b extending upward from the left and right edges of the base portion 52a.

The bezel bracket 52 is disposed between the left and right front forks 23 and 23. The wrist portions 52b and 52b extend along the inner side surfaces of the front forks 23 and 23 toward the bottom bridge 22 and upward. The front bezel 45 is fixed below the bottom bridge 22 by bolts 52c inserted through the upper ends of the wrist portions 52b and 52b of the bezel bracket 52 from below. Openings 53 are formed between the left and right wrist portions 52b and 52b.

FIG. 4 is a left side view of a peripheral portion of the engine 10 with the case members 50 and 50 removed. The air intake device 35 is disposed between the cylinder portion 31 of the engine 10 and the main frame 16 in the vertical direction, and is disposed between the rear end portion 45 a of the front bezel 45 and the main frame 16 in the front-rear direction. The air cleaner 36 is disposed between the upper surface of the cylinder head 31 b and the lower surface of the main frame 16.

FIG. 5 is a perspective view of a peripheral portion of the air cleaner 36 as viewed from the left front side. The air cleaner 36 includes a box-shaped air cleaner box body 60 (frame body) with a front opening, and a cover member 61 that closes an opening on the front face of the air cleaner box body 60. The air supply pipe 62 for taking outside air into the air cleaner 36 extends from the rear of the air cleaner box body 60 toward the rear.

FIG. 6 is a front view of the air cleaner 36 viewed from the front side with the cover member 61 removed. As shown in FIG. 5 and FIG. 6, the air cleaner box body 60 is formed in a box shape having a longer vehicle width direction (left-right direction) than the up-down direction, and is disposed across the left and right sides of the main frame 16. The air cleaner case main body 60 includes a partition wall 63 that partitions the space inside the air cleaner case main body 60 back and forth. The air filter 64 is attached to the air cleaner box body 60 so as to block the opening provided in the partition wall 63. The air supply duct 62 extends rearward from the left and right end portions of the air cleaner box body 60.

The space formed between the cover member 61 and the partition wall 63 is a dirty area where external air is taken in from the air supply pipe 62. The space formed between the partition wall 63 and the rear surface of the air cleaner box body 60 is a clean area for circulating cleaned air from the dirty area through the air filter 64. The air in the clean area is supplied to the cylinder head 31 b through the connection pipe and the throttle body 37.

The peripheral edge portion defining the opening of the front face of the air cleaner box body 60 is an engaging portion 60 a that cooperates with the cover member 61. The air cleaner box body 60 includes a flange portion 65 extending from the engaging portion 60 a to the outside on the front side. A plurality of fixing holes 66 are provided in the flange portion 65. In each fixing hole 66, a cover member fixing member 67 (locking portion) for attaching the cover member 61 to the air cleaner box body 60 is fixed.

As shown in FIG. 5, the outer surface of the air cleaner case body 60 is provided with a plurality of case engaging portions 69 a, 69 b, and 69 c for engaging the case members 50 and 50. In addition, a case fixing portion 69d is provided below the air cleaner box body 60. A case fixing member 80 (FIG. 9) that fixes the case members 50 and 50 to the air cleaner case main body 60 is fixed to the case fixing portion 69 d.

As shown in FIG. 2, the main frame 16 includes brackets 39 and 39 extending downward. A plurality of brackets 39 and 39 are arranged side by side in the front-rear direction in front of the engine hanger 32. The air cleaner 36 is fixed to the brackets 39 and 39 by bolts 68 and 68 (FIG. 4) inserted in the upper portion of the air cleaner case main body 60 in the vehicle width direction, and is supported by the main frame 16.

FIG. 7 is a front view of the air cleaner 36 as viewed from the front. 5 and 7, the cover member 61 includes a frame-shaped cover peripheral portion 70 that is engaged with the engaging portion 60 a (FIG. 6) of the air cleaner box body 60 from the front. The cover member 61 is formed in the shape of a dish that bulges forward in its entirety within the frame of the cover peripheral portion 70.

The front surface of the cover member 61 includes a central portion 71 located at the center of the vehicle width and a pair of left and right segment portions 72 and 72 provided on the left and right side portions of the cover member 61. The central portion 71 is located in a position overlapping with the center line 73 located in the center of the vehicle width in front view. The central portion 71 is formed in a symmetrical shape with reference to the center line 73. The central portion 71 is located behind the front bezel 45. The central portion 71 faces the upper surface of the rear portion of the front bezel 45 from the rear.

Referring to FIGS. 4, 5, and 7, when the vehicle is viewed from the side, the intermediate portion 71 a above and below the central portion 71 extends substantially vertically. When the vehicle is viewed from the side, the upper portion 71b of the central portion 71 extends rearwardly. An inclined surface 74 recessed toward the rear is provided below the central portion 71. The inclined surface 74 is a concave portion provided in the center in the vehicle width direction of the central portion 71. When the vehicle is viewed from the side, the inclined surface 74 is inclined downward and rearward, and is located above and before the front portion of the cylinder head 31b. The width of the inclined surface 74 increases from the upper end to the lower end side. The inclined surface 74 extends downward from the rear and extends rearward from the front end 45 a of the front baffle 45 and faces upward.

The segment portions 72 and 72 of the cover member 61 are provided on the left and right side surfaces of the central portion 71 and are recessed rearward with respect to the central portion 71. The segment portions 72 and 72 are formed in a shape that is approximately symmetrical with respect to the center line 73. When the vehicle is viewed from the side, an intermediate portion 71 a above and below each segment portion 72 extends substantially vertically. When the vehicle is viewed from the side, the upper portion 71 b of each of the segment portions 72 extends rearward and rises. When the vehicle is viewed from the side, the lower portion 72c of each of the segment portions 72 extends downwardly.

The segment portions 72 and 72 are provided at the upper portion with widened portions 76 and 76 extending inward in the vehicle width direction and having wider left and right widths than the lower portion. Therefore, the width of the central portion 71 is larger at the lower portion than at the upper portion. In detail, the boundary portions 77 and 77 between the central portion 71 and the segment portions 72 and 72 include: lower boundary portions 77a and 77a, which extend vertically from the lower end of the central portion 71 and upward in the front view of FIG. 7; The intermediate junctions 77b and 77b extend from the upper ends of the lower junctions 77a and 77a toward the inside in the vehicle width direction; and the upper junctions 77c and 77c extend upward from the inner ends of the intermediate junctions 77b and 77b. That is, the width of the central portion 71 is smaller than the lower portion of the central portion 71. The widened portions 76 and 76 are defined by the upper boundary 77c and 77c and the middle boundary 77b and 77b.

A plurality of locking holes 78 through which the cover member fixing member 67 is inserted from the front are provided at a portion of the cover peripheral edge portion 70 and located within the section portions 72 and 72. The cover member fixing member 67 is, for example, a bolt. That is, the cover member 61 is fixed to the air cleaner case main body 60 by locking the cover member fixing member 67 in the front-rear direction. In addition, a plurality of locking holes 79 through which the cover member fixing member 67 is inserted from the front are also provided at the lower end portion of the central portion 71 of the cover peripheral edge portion 70.

FIG. 8 is a side view of the casing member 50 on the left side as viewed from the inside. FIG. 9 is a perspective view of a peripheral portion of the left case member 50 when viewed from below. In addition, since the left and right case members 50 and 50 are provided approximately symmetrically, the left case member 50 will be described in detail here. 3, 8 and 9, the housing member 50 is integrally provided with a housing side wall portion 81 that covers the air filter 36 from the outside in the vehicle width direction, and a housing peripheral wall that extends from the periphery of the housing side wall portion 81 toward the vehicle width direction inside部 82。 82.

When the vehicle is viewed from the side, the casing side wall portion 81 is substantially rectangular. The casing peripheral wall portion 82 is provided over the entire periphery of the periphery of the casing side wall portion 81. As shown in FIG. 8, claw-shaped engaging pieces 83 a and 83 b protruding toward the rear side are arranged in front of and behind the inner wall of the upper wall of the casing peripheral wall portion 82. A claw-shaped engaging piece 83c protruding toward the rear side is provided on the inner surface of the lower wall of the peripheral wall portion 82 of the casing. In addition, a seat portion 84 recessed upward is provided on the inner surface of the lower wall of the peripheral wall portion 82 of the housing and in front of the engaging piece 83c.

The case member 50 is fixed to the case engaging portions 69a, 69b, and 69c (FIG. 5) of the air cleaner case body 60 by engaging the engaging pieces 83a, 83b, and 83c (FIG. 8) from the front. Air cleaner box body 60. In addition, the case member 50 is locked to the air cleaner case by the case fixing member 80 inserted into the seat portion 84 from below. The housing fixing portion 69d of the body 60.

The case member 50 is attached to the air cleaner 36 so that the front part may cover the side of the air cleaner 36 from the front and the side. Specifically, the front wall portion of the casing peripheral wall portion 82 extends from the front end of the casing side wall portion 81 toward the inside in the vehicle width direction and is fitted to the inner extension portion 85 of the segment portion 72 of the cover member 61 of the air cleaner 36. The inner extension portion 85 fits the segment portion 72 and covers the segment portion 72 from the front. When the vehicle is viewed from the side, the front surface of the central portion 71 and the front surface of the inner extension portion 85 are on the same plane, and the central portion 71 and the inner extension portion 85 are smoothly continuous. In this way, by setting the central portion 71 of the cover member 61 and the inner extension portion 85 of the case member 50 on the same plane, it is possible to reflect the physical feeling of the design of the air cleaner 36 and the case member 50, thereby improving the appearance. Sex. The cover member fixing member 67 and the locking hole 78 provided in the section 72 are hidden between the inner extension 85 and the cover member 61.

The inner edge 85a in the vehicle width direction of the inner extension portion 85 is provided in a non-linear manner along the junction portion 77 in the front view. That is, the inner extension portion 85 is provided at the upper portion with a protruding portion 86 that fits into the widened portion 76 defined by the upper boundary 77c and the middle boundary 77b. In this way, because the boundary portion 77 is non-linear, the design impression of the boundary portion 77 can be enhanced and the appearance is good.

The rear end 50 a of the casing member 50 is located behind the throttle body 37 and the fuel supply device 38. The case member 50 covers the air cleaner 36, the air duct 62, the throttle body 37, and the fuel supply device 38 from the side. Thereby, the suction device 35 can be effectively protected by the case member 50. The housing member 50 is a separate member that is mounted on the air cleaner 36 and covers the air cleaner 36. Therefore, the area of the case member 50 can be reduced, and if only the case member 50 is damaged, it is relatively easy to exchange only the case member 50.

As shown in FIG. 3, a part of the traveling wind along the upper side of the front fence 45 flows backward as the traveling wind W passing through the opening 53 of the fence bracket 52. As shown in FIG. 5, the traveling wind W is guided by a gap between the rear end portion 45 a of the front baffle 45 and the inclined surface 74 of the cover member 61 to flow backward and downward, and reaches the front portion of the cylinder head 31 b. Therefore, the cylinder head 31b can be efficiently cooled by the traveling wind W.

As described above, according to the embodiment to which the present invention is applied, the housing structure of a two-wheeled locomotive is provided with a main frame 16 extending rearward from the head pipe 15 and an air filter as a functional part of the vehicle body disposed below the main frame 16. 36, and housing members 50, 50 covering the air cleaner 36, wherein the air cleaner 36 includes an air cleaner box body 60, and is fixedly locked to the air cleaner box body 60 in the front-rear direction. The front cover member 61 and the cover member 61 are provided on the left and right side portions with recessed portions 72 and 72 recessed toward the rear, and the case members 50 and 50 are provided with a pair of left and right sides so as to cover the air cleaner 36 from the side and It is attached to the air cleaner 36, and the housing members 50 and 50 are provided at the front end with an inner extension portion 85 extending toward the inner side in the vehicle width direction. The inner extension portion 85 is fitted to the sections 72 and 72 of the cover member 61. The front surface of the member 61 and the inner extension 85 are on the same plane. According to this configuration, the inner extensions 85 of the housing members 50 and 50 covering the air cleaner 36 from the side are fitted to the sections 72 and 72 of the cover member 61 of the air cleaner 36 and are in front of the cover member 61. On the same plane, the design of the cover member 61 and the shell members 50 and 50 can be reflected, and the air cleaner 36 located below the main frame 16 can be used as part of the appearance, thereby improving the design. In addition, the inner extension portion 85 may cover the locking direction of the cover member 61 to the air cleaner box body 60. In addition, the air cleaner 36 may be covered by a separate housing member 50, 50 mounted on the air cleaner 36.

In addition, the cover member 61 is locked to the cover of the air cleaner box body 60 The component fixing member 67 is provided on the segment portions 72 and 72 and is located between the inner extension portion 85 and the cover member 61. According to this configuration, the cover member fixing member 67 can be hidden by the inner extension portion 85, the appearance can be improved, and the cover member fixing member 67 can be prevented from entering from the outside unnecessarily. In addition, the vehicle body functional parts are an air filter 36, and the air filter 36 is located between the engine 10 and the main frame 16 supported on the main frame 16, and an engine is arranged behind the air filter 36 The throttle body 37 and the casing members 50 and 50 of 10 extend toward the rear of the air cleaner 36 so as to cover the throttle body 37 from the side. According to this configuration, the case members 50 and 50 can cover the throttle body 37, the throttle body 37 can be protected, and the appearance can be improved. In addition, a part of the larger air filter 36 disposed under the main frame 16 is covered with the shell members 50 and 50, and the air filter 36 and the shell members 50 and 50 are used to reflect a physical sense in the design. Give the vehicle body functional parts (air filter 36) a characteristic appearance.

In addition, an inclined surface 74 recessed toward the rear is provided at a front portion of the cover member 61 and a central portion in the vehicle width direction. When the vehicle is viewed from the side, the inclined surface 74 is inclined downwardly downward. According to this configuration, the traveling wind W can be guided to the engine 10 along the inclined surface 74. In addition, the segment portions 72 and 72 are provided on the upper portion of the cover member 61 and include widened portions 76 and 76 extending toward the inner side in the vehicle width direction and increasing the left and right widths. The inclined surface 74 is provided on the lower portion of the cover member 61. According to this configuration, the case members 50 and 50 can be firmly attached to the cover member 61 by the widened portions 76 and 76, and the shape of the abutting surface of the air cleaner 36 and the case members 50 and 50 can be strongly impressed. The appearance can be characterized to improve design. In addition, since the widened portions 76 and 76 are provided on the upper portion of the cover member 61, it is easy to secure a space for installing the inclined surface 74 on the lower portion of the cover member 61.

It should be noted that the above-mentioned embodiment shows only one aspect to which the present invention is applied, and the present invention is not limited to the above-mentioned embodiment. In the embodiment described above, the air cleaner 36 has been described as an example of a vehicle body functional part, but the present invention is not limited to this. For example, the functional parts of the vehicle body may also be a battery or a power drive unit of an electric vehicle, or may be a structure that covers the cover members provided in the frame members of the parts with the case members 50, 50. In the above embodiment, the two-wheeled locomotive 1 is described as an example of a saddle-riding type vehicle. However, the present invention is not limited to this. The present invention can be applied to a saddle-riding type vehicle having three front wheels or two rear wheels Or straddle-type vehicles with more than four wheels.

Claims (5)

A shell structure of a straddle type vehicle is provided with a main frame (16) extending rearward from a head pipe (15), a body function part (36) disposed below the main frame (16), and covering the vehicle The shell member (50) of the body function part (36) is characterized in that: the vehicle body function part (36) is provided with a frame body (60) and is fixed to the front surface of the frame body (60) by being locked in the front-rear direction. A cover member (61), the cover member (61) is provided with left and right side portions (72) recessed toward the rear, and the outer cover member (50) is configured to cover the vehicle body functional parts (36) from the side. A pair of left and right are installed on the vehicle body functional part (36). The housing member (50) is provided at the front end with an inner extension (85) extending inward in the vehicle width direction. In the section portion (72) of the cover member (61), the front surface of the cover member (61) and the front surface of the inner extension portion (85) are on the same plane. For example, the housing structure of a straddle-type vehicle according to claim 1, wherein a locking portion (67) for locking the cover member (61) to the frame body (60) is provided in the segment section (72), and is located in the above section. Between the inner extension (85) and the cover member (61). For example, the housing structure of a straddle-type vehicle according to claim 1 or 2, wherein the functional part (36) of the vehicle body is an air filter (36), and the air filter (36) is located and supported on the main frame. (16) Between the engine (10) and the main frame (16), after the air filter (36), the suction system parts (37) of the engine (10), and the casing member (50) ) Is extended toward the rear side of the air cleaner (36) by covering the suction system part (37) from the side. For example, the housing structure of a straddle-type vehicle according to claim 3, wherein an inclined surface (74) recessed toward the rear is provided at the central portion (71) of the vehicle width direction in front of the cover member (61), and when the vehicle is viewed from the side At this time, the inclined surface (74) is inclined downwardly downward. For example, the housing structure of a straddle-type vehicle according to claim 4, wherein the segment portion (72) is provided on the upper portion of the cover member (61) and includes a widened portion (76) extending inward in the vehicle width direction and increasing in width from left to right. The inclined surface (74) is provided at a lower portion of the cover member (61).