CN110962943B - Front structure of vehicle - Google Patents

Abstract

The invention provides a front structure of a vehicle, which is provided with an air inlet pipeline arranged on the inner side of a front cover, can improve the shape freedom of a stay, and can efficiently support a vehicle body component. A front structure of a vehicle is provided with: a front cover disposed in front of the vehicle frame (10); an air intake duct (60) disposed inside the front cover; and a stay (65) that supports vehicle body constituent members, wherein an intake duct (60) supported by the vehicle body frame (10) extends in the front-rear direction, wherein the stay (65) is disposed on the left and right sides of the intake duct (60) and is supported by the vehicle body frame (10), wherein the stay (65) is provided with a pair of left and right arm members (75L, 75R) that extend in the up-down direction on the sides of the intake duct (60), wherein the upper ends of the arm members (75L, 75R) are located above the upper surface (60d) of the intake duct (60), and the lower ends of the arm members (75L, 75R) are located below the lower surface (60e) of the intake duct (60).

Description

Front structure of vehicle

Technical Field

The present invention relates to a front structure of a vehicle.

Background

Conventionally, there is known a front structure of a vehicle including a front cover provided in front of a vehicle body frame and an intake duct disposed inside the front cover, the intake duct supported by the vehicle body frame extending in a front-rear direction (see, for example, patent documents 1 and 2). In patent documents 1 and 2, a vehicle body constituent member is supported by a stay provided in an intake duct.

Documents of the prior art

Patent literature

Patent document 1: japanese patent laid-open publication No. 2006-281914

Patent document 2: japanese patent laid-open No. 2007-196984

Disclosure of Invention

Problems to be solved by the invention

However, in the above-described conventional vehicle front structure, the stay that supports the vehicle body constituent member is provided separately from the intake duct, and the structure of the intake duct can be simplified. Therefore, the shape freedom of the stay is limited, and it is difficult to support the vehicle body structural member.

The present invention has been made in view of the above circumstances, and an object thereof is to improve the degree of freedom in the shape of a stay and to efficiently support a vehicle body component in a front structure of a vehicle including an intake duct disposed inside a front cover.

Means for solving the problems

A front structure of a vehicle is provided with: a front cover 40 provided in front of the vehicle frame 10; an intake duct 60 disposed inside the front cover 40; and a stay 65 that supports vehicle body constituent members 40, 67, 71 and that extends in the front-rear direction of the intake duct 60 supported by the frame 10, wherein the stay 65 is disposed on the left and right of the intake duct 60 and is supported by the frame 10, the stay 65 includes a pair of left and right arm members 75L, 75R that extend in the up-down direction on the sides of the intake duct 60, the upper ends of the arm members 75L, 75R are located above the upper surface 60d of the intake duct 60, and the lower ends of the arm members 75L, 75R are located below the lower surface 60e of the intake duct 60.

In the above configuration, the stay 65 may include a lower coupling portion 86 that couples the left and right arm members 75L and 75R to each other in the left-right direction below the intake duct 60.

In the above configuration, the stay 65 may include an upper coupling portion 76 that couples the left and right arm members 75L and 75R to each other above the intake duct 60.

In the above configuration, the upper coupling portion 76 may be a beam member 76 that is separate from the arm members 75L and 75R, and the beam member 76 may support the meter 67.

In the above configuration, the left and right arm members 75L, 75R may extend forward and upward, and the upper ends of the arm members 75L, 75R may be provided with the cover support portions 80 inclined so as to be low in front and high in rear when viewed from the side of the vehicle.

In the above configuration, the left and right arm members 75L, 75R may include fixing portions 78c, 79a connected to the front end portion of the frame 10, and the fixing portions 78c, 79a may be provided at least above and below the intake duct 60.

In the above configuration, the left and right arm members 75L, 75R may have a notch portion 84 between the upper and lower fixing portions 78c, 79a when viewed from the side of the vehicle.

In the above configuration, the lower coupling portion 86 may be a pair of inner extending portions 77L, 77R extending inward in the vehicle width direction from the left and right arm members 75L, 75R, the left and right inner extending portions 77L, 77R may be coupled to each other by a fastener 86b, a steering damper 71 may be provided, the steering damper 71 may be coupled to the vehicle body and the front fork 12 supporting the front wheel 2, and the steering damper 71 may be fastened to the lower coupling portion 86 by the fastener 86 b.

In the above configuration, the arm members 75L and 75R may include a duct support portion 82 that supports the intake duct 60.

Effects of the invention

According to the front structure of the vehicle, the front structure of the vehicle includes: a front cover disposed in front of the frame; an intake duct disposed inside the front cover; and a stay that supports the vehicle body constituent member, extends in the front-rear direction from the intake duct supported by the vehicle body frame, is disposed on the left and right of the intake duct, and is supported by the vehicle body frame.

According to this configuration, the arm member of the stay extends vertically so as to avoid the intake duct from the left and right, and extends above and below the intake duct, and therefore the stay has a high degree of freedom in shape. Therefore, the vehicle body component can be efficiently supported.

In the above configuration, the stay may include a lower coupling portion that couples the left and right arm members to each other on the left and right sides below the intake duct.

According to this configuration, the left and right arm members are coupled by the lower coupling portion, and therefore the rigidity of the stay can be improved.

In the above configuration, the stay may include an upper connection portion that connects the left and right arm members to each other in the left-right direction above the intake duct.

According to this configuration, the left and right arm members are coupled by the upper coupling portion, and therefore the rigidity of the stay can be improved. The stay surrounds the intake duct from the periphery by the left and right arm members and the upper coupling portion, and thus easily supports the vehicle body constituent member.

In the above configuration, the upper connection portion may be a beam member separate from the arm member, and the beam member may support the meter.

According to this structure, the upper connection portion is separate from the arm member, and therefore the stay can be easily assembled to the vehicle body side. Further, the meter can be supported above the intake duct by the upper connecting portion.

In the above-described configuration, the left and right arm members may extend forward and upward, and a cover support portion that is inclined so as to be lower in front and higher in rear when viewed from the side of the vehicle may be provided at an upper end of the arm member.

According to this configuration, since the left and right arm members extend obliquely upward and forward, the space occupied by the arm members can be reduced, and the vehicle body component can be easily supported in the entire vertical direction and the entire longitudinal direction. Further, the cover can be supported well by the cover support portion inclined low in front and high in rear.

In the above configuration, the left and right arm members may include fixing portions connected to the front end portion of the vehicle body frame, and the fixing portions may be provided at least above and below the intake duct.

According to this configuration, since the fixing portion is provided at a position spaced apart from the upper and lower portions of the intake duct, the left and right arm members can be supported with high rigidity by the front end portion of the vehicle body frame.

The left and right arm members may have a cutout portion between the upper and lower fixing portions when viewed from the side of the vehicle.

According to this structure, the rigidity of the stay can be ensured, and the stay can be made compact.

In the above-described configuration, the lower coupling portion may be a pair of inner extending portions extending inward in the vehicle width direction from the left and right arm members, the left and right inner extending portions may be coupled to each other by a fastener, a steering damper may be provided to couple a front fork supporting the front wheel to the vehicle body, and the steering damper may be fastened to the lower coupling portion by the fastener.

According to this configuration, the steering damper can be attached with a simple configuration by using the fastener for fastening the left and right inner extending portions.

The arm member further includes a duct support portion that supports the intake duct. According to this structure, the intake duct can be supported by the arm member.

Drawings

Fig. 1 is a left side view of a motorcycle according to an embodiment of the present invention.

Fig. 2 is a left side view of the frame, swing arm and rear wheel.

Fig. 3 is a front view of a front portion of the motorcycle.

Fig. 4 is a sectional view IV-IV of fig. 3.

Fig. 5 is a front view of the front portion of the motorcycle with the front cover removed.

Fig. 6 is a front view of the front portion of the motorcycle with the hood removed from fig. 5.

Fig. 7 is a plan view of the front portion of the motorcycle as viewed from above with the front cover removed.

Fig. 8 is a left side view showing a mounted state of the stay with respect to the vehicle frame.

Fig. 9 is a plan view of the state in which the stay is attached, as viewed from above.

Fig. 10 is a front view of the stay as viewed from the front side.

Fig. 11 is a left side view of the stay.

Fig. 12 is a cross-sectional view XII-XII of fig. 4.

Fig. 13 is a left side view of a front structure of the motorcycle.

Description of the reference symbols

1: motorcycles (vehicles);

2: a front wheel;

10: a frame;

12: a front fork;

40: a front cover (vehicle body constituent member);

60: an air intake duct;

60 d: an upper surface;

60 e: a lower surface;

65: a stay;

67: a meter (vehicle body constituent member);

71: a steering damper (vehicle body constituent member);

75L, 75R: an arm member;

76: a beam member (upper connection portion);

77L, 77R: an inboard extension;

78c, the ratio of: a lower fixing portion (fixing portion);

79 a: an upper fixing part (fixing part);

80: a cover support portion;

82: a conduit support;

84: a cut-out portion;

86: a lower connecting portion;

86 b: a fastener.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description, the directions of front, rear, left, right, and up and down are the same as the directions of the vehicle body unless otherwise specified. In the drawings, the reference symbol "front" indicates the vehicle body front, the reference symbol "upper" indicates the vehicle body upper side, and the reference symbol "left" indicates the vehicle body left side.

Fig. 1 is a left side view of a motorcycle 1 according to an embodiment of the present invention.

The motorcycle 1 is a vehicle as follows: an engine 11 as a power unit is supported by the vehicle body frame 10, a front fork 12 supporting the front wheel 2 is steerably supported by a front end of the vehicle body frame 10, and a swing arm 13 supporting the rear wheel 3 is provided at a rear portion of the vehicle body frame 10.

The motorcycle 1 is a saddle-ride type vehicle in which an occupant sits so as to straddle a seat 14, and the seat 14 is provided above the rear portion of the frame 10.

Fig. 2 is a left side view of the frame 10, the swing arm 13, and the rear wheel 3.

Referring to fig. 1 and 2, the vehicle body frame 10 includes: a front seat tube 15 provided at a front end of the frame 10; a pair of left and right main frames 16 extending rearward and downward from the front vertical pipe 15; a pair of left and right pivot frames 17 extending downward from the rear end of the main frame 16; and a pair of left and right seat frames 18 extending rearward and upward from the upper portion of the pivot frame 17.

The main frame 16 includes an engine mount portion 16a that extends downward from a front portion of the main frame 16 and supports the engine 11.

The front fork 12 is pivotally supported by the front seat tube 15 so as to be steerable left and right. A steering handle 21 is provided at an upper end portion of the front fork 12. The front wheel 2 is pivotally supported by an axle 2a provided at a lower end portion of the front fork 12.

The swing arm 13 is pivotally supported by a pivot shaft 22 supported by the left and right pivot frames 17. The pivot shaft 22 extends horizontally in the vehicle width direction. The swing arm 13 has a tip end portion pivotally supported by the pivot shaft 22 and swings up and down about the pivot shaft 22.

The rear wheel 3 is pivotally supported by an axle 3a provided at a rear end of the swing arm 13.

A rear suspension 24 is provided between the vehicle body and the swing arm 13. The upper end of the rear suspension 24 is coupled to the vehicle body. The upper end of the rear suspension 24 is coupled to the engine 11, which is a vehicle body, via a suspension coupling portion (not shown) extending rearward from the rear end of the engine 11, for example.

The lower end of the rear suspension 24 is connected to the swing arm 13 and the lower end of the pivot frame 17 via a link mechanism, not shown.

The engine 11 is disposed forward of the pivot frame 17 below the main frame 16 and is fixed to the vehicle body frame 10.

The engine 11 includes: a crankcase 28 that supports a crankshaft 27 horizontally extending in a vehicle width direction (left-right direction); and a cylinder portion 29 extending forward and upward from the front of the crankcase 28. A piston (not shown) that reciprocates in the cylinder portion 29 is housed in the cylinder portion 29. The cylinder axis 29a of the cylinder portion 29 is inclined forward with respect to the vertical.

A rear portion of the crankcase 28 is a transmission case portion 28a that houses a transmission (not shown). The output of the engine 11 is transmitted to the rear wheel 3 via a drive chain 30 connecting the output shaft of the transmission and the rear wheel 3.

The air cleaner box 31 is disposed rearward and upward of the cylinder portion 29. The air cleaner box 31 is connected to an intake port on the rear surface of the cylinder portion 29 via a throttle body (not shown).

The exhaust pipe 32 of the engine 11 is drawn out downward from an exhaust port in the front surface of the cylinder portion 29, passes below the engine 11, and extends rearward. The rear end of the exhaust pipe 32 is connected to a muffler 33 disposed on the side of the rear wheel 3.

The fuel tank 35 is disposed above the main frame 16 between the seat 14 and the air cleaner box 31.

The radiator 36 of the engine 11 is disposed in front of the engine 11.

The motorcycle 1 includes, as a body cover for covering a vehicle body such as a body frame 10 and an engine 11, the following parts: a front cover 40 (vehicle body component) that covers the upper portion of the front fork 12 and the front seat tube 15 from the front; a front cover 41 that covers the front portion of the vehicle body from the side; a bottom cover 42 that covers the engine 11 from below; a tank cover 43 that covers the air cleaner box 31 and a part of the fuel tank 35; and a rear cover 44 that covers a rear portion of the vehicle body.

A front fender 45 that covers the front wheel 2 from above is attached to the front fork 12.

An inner fender 46 that covers the front portion of the rear wheel 3 from above is attached to the swing arm 13.

A rear fender 47 that covers the rear portion of the rear wheel 3 from above extends rearward and downward from the rear end portion of the seat frame 18.

The footrest 48 on the seat 14 for the occupant to place his feet is supported by the pivot frame 17 and is disposed rearward of the pivot frame 17.

Fig. 3 is a front view of the front portion of the motorcycle 1. Fig. 4 is a sectional view IV-IV of fig. 3.

Referring to fig. 1, 3, and 4, the front cover 40 is a cover member that is inclined so as to be high at the rear and low at the front (high at the front and low at the rear) when viewed from the side of the vehicle. The front cover 40 is curved so that a portion located at the vehicle width center protrudes forward.

A pair of left and right rearview mirrors 50 are provided on the upper portion of the front cover 40.

An intake port 51 penetrating the front cover 40 is provided at a center portion in the vehicle width direction in a lower portion of the front cover 40. A pair of left and right headlamps 52 (lamp bodies) are provided on the lower portion of the front cover 40 on the sides of the intake opening 51.

The front seat tube 15 and the upper portion of the front fork 12 are covered from the front by a front cover 40.

The front fork 12 includes: a steering shaft 53 that is rotatably supported by the front vertical pipe 15; a top bridge 54 fixed to an upper end of the steering shaft 53; a bottom bridge 55 fixed to a lower end of the steering shaft 53; and a pair of left and right fork tubes 56 supported by the top bridge 54 and the bottom bridge 55.

The top bridge 54 extends in the vehicle width direction from the steering shaft 53 above the front seat pipe 15, and connects upper end portions of the left and right fork tubes 56.

The bottom bridge 55 extends in the vehicle width direction from the steering shaft 53 below the front seat pipe 15, and connects the left and right fork pipes 56.

The axle 2a is bridged between the lower end portions of the left and right fork tubes 56.

The front seat tube 15 is located at the center of the vehicle width and is disposed to be inclined rearward with respect to the vertical direction when viewed from the side of the vehicle.

Referring to fig. 2 to 4, the front stand pipe 15 includes: a front riser body 15a that pivotally supports a steering shaft 53; a casing portion 15b (fig. 2) that covers the front riser body portion 15a from the periphery; and an opening 15d that communicates the space 15c between the outer shell 15b and the front riser body 15a with the front. The rear end of the case portion 15b is connected to an air cleaner box 31.

The motorcycle 1 includes an intake duct 60 extending forward from the front seat pipe 15. The intake duct 60 is a center duct disposed at the center of the vehicle width.

The intake duct 60 is a pipe having a substantially rectangular cross section when cut along a plane perpendicular to the axial direction of the intake duct 60.

The rear end of the air intake duct 60 is connected to the opening 15d of the front stand pipe 15, and the air intake duct 60 communicates with the space 15 c.

The intake duct 60 is bent downward from the front seat pipe 15 side and extends forward when viewed from the side of the vehicle. The distal end portion 60a of the intake duct 60 communicates with the intake port 51 of the front cover 40.

The air taken in from the air intake port 51 of the front cover 40 flows into the air cleaner box 31 through the air intake duct 60 and the space 15c, is cleaned in the air cleaner box 31, and then flows into the cylinder portion 29.

Fig. 5 is a front view of the front portion of the motorcycle 1 with the front cover 40 removed. Fig. 6 is a front view of the front portion of the motorcycle 1 with a cover 61 described later removed from fig. 5. Fig. 7 is a plan view of the front portion of the motorcycle 1 as viewed from above with the front cover 40 removed. In fig. 5 to 7, the front cover 41 is also removed.

Referring to fig. 4 to 7, inside the front cover 40, in front of the front seat pipe 15, there are provided: a stay 65 that supports the front cover 40; an air intake duct 60; a pair of head lamps 52; a driver 66 that drives the head lamp 52; a meter 67 (vehicle body constituent member); a box-shaped electric component 68; a roll angle sensor 69; a pair of left and right resonators 70; and a steering damper 71 (vehicle body constituent member).

Fig. 8 is a left side view showing a mounted state of stay 65 with respect to frame 10. Fig. 9 is a plan view of the state in which stay 65 is mounted, as viewed from above. Fig. 10 is a front view of stay 65 as viewed from the front side. Fig. 11 is a left side view of stay 65. Here, in fig. 8, the headlight 52, the front fork 12, and the steering damper 71 are not shown. In fig. 9, the headlight 52, the meter 67, the resonator 70, and the electric components 68 are not shown.

Referring to fig. 8 to 11, stay 65 includes: a pair of left and right arm members 75L and 75R disposed on left and right sides of the intake duct 60; and a beam member 76 (upper connecting portion) that connects the upper portions of the left and right arm members 75L, 75R to the left and right.

The stay 65 includes inner extending portions 77L, 77R extending inward in the vehicle width direction from lower end portions of the left and right arm members 75L, 75R.

The left and right arm members 75L and 75R are provided substantially in left-right symmetry.

The arm members 75L and 75R are disposed so as to overlap the left and right side surfaces 60b of the intake duct 60 from the outside in the vehicle width direction.

The arm members 75L and 75R extend in the vertical direction on the rear side of the intake duct 60.

The arm members 75L, 75R extend forward and upward from the head pipe 15 as viewed from the side of the vehicle as a whole.

Specifically, the arm members 75L and 75R include: an upper extension 78 extending obliquely upward and forward from the lower end of the front stand pipe 15; a rear extension portion 79 extending rearward from an upper and lower intermediate portion of the upper extension portion 78; a cover support portion 80 provided at an upper end of the upper extension portion 78; and the inner extension parts 77L, 77R.

The lower portion 78a of the upward extending portion 78 extends upward along the left and right side surfaces 60b of the air intake duct 60 as viewed from the front. The upper portion 78b of the upper extending portion 78 is inclined so as to be positioned on the vehicle width direction outer side as going upward.

A headlight stay 81 projecting forward is provided on the lower portion 78a of the upper extending portion 78.

A duct support portion 82 connected to the intake duct 60 is provided at the upper portion 78b of the upper extension portion 78. The duct support portion 82 is a hole portion that penetrates the upper extending portion 78 in the vehicle width direction.

A lower fixing portion 78c (fixing portion) fixed to the front seat pipe 15 is provided at the lower end portion of the upper extending portion 78. The lower fixing portion 78c is a hole through which a fixing member 83a for fastening the stay 65 to the frame 10 is inserted from the outside in the vehicle width direction.

An upper fixing portion 79a (fixing portion) fixed to the front stem 15 is provided at a rear end portion of the rear extension portion 79. The upper fixing portion 79a is a hole through which a fixing member 83b for fastening the stay 65 to the vehicle body frame 10 is inserted from the outside in the vehicle width direction.

In the arm members 75L and 75R, a notch portion 84 is provided at a portion between the rear extending portion 79 and the lower portion 78a of the upper extending portion 78, and the notch portion 84 is formed by cutting out a portion between the upper fixing portion 79a and the lower fixing portion 78c to the front side at the rear end portions of the arm members 75L and 75R. The notch portion 84 has a V-shape when viewed from the side of the vehicle. The end of the V of the notch portion 84 points forward.

The cover support portion 80 includes a support plate portion 80a extending rearward and upward from the rear surface of the upward extending portion 78. The upper surface of the cover support portion 80 also includes a support plate portion 80a, and is a slope that is inclined so as to be low in front and high in rear when viewed from the side of the vehicle. A plurality of fixing portions 80b, 80c, 80d fastened to the front cover 40 are provided on the upper surface of the cover support portion 80 in the front-rear direction.

Cover fasteners 85a, 85b, 85c are inserted into the fixing portions 80b, 80c, 80d from above.

The left and right inner extension portions 77L, 77R are connected to each other. That is, the inner extending portions 77L, 77R constitute the lower connecting portions 86 at the lower portions of the left and right connecting arm members 75L, 75R below the intake duct 60.

The lower connecting portion 86 includes a superimposed portion 86a in which inner end portions in the vehicle width direction of the inner extending portions 77L, 77R are superimposed on each other in the vertical direction at a center portion in the vehicle width direction. The inner extensions 77L, 77R are fastened to each other by a fastener 86b inserted through the overlapping portion 86a from below.

The cross member 76 is a plate member extending in the vehicle width direction between the upper portions 78b of the left and right upward extending portions 78, and is provided separately from the arm members 75L, 75R. The cross member 76 is inclined high in the front and low in the rear as viewed from the side of the vehicle.

The cross member 76 is fastened to an upper portion 78b of the upward extending portion 78 by fasteners 76a (fig. 9) inserted through left and right end portions of the cross member 76 from the rear. The cross member 76 is an upper connection portion that connects upper portions of the left and right arm members 75L, 75R above the intake duct 60.

The stay 65 includes an open portion 87 (fig. 10) defined by the left and right arm members 75L and 75R, the lower coupling portion 86, and the cross member 76. The open portion 87 penetrates the stay 65 in the front-rear direction.

As shown in fig. 2, a stay fixing portion 15e fastened to the fixing member 83a is provided at the lower end portion of both the left and right side surfaces of the front riser body 15 a. Stay fixing portions 15f fastened to the fasteners 83b are provided at upper end portions of both left and right side surfaces of the front riser body 15 a.

As shown in fig. 8, rear end portions of the left and right arm members 75L, 75R are fastened to the front seat pipe 15 by fasteners 83a, 83b, whereby the stay 65 is fixed to the front end portion of the frame 10. The lower fixing portion 78c fastened to the fixing member 83a is located below the air intake duct 60, and the upper fixing portion 79a fastened to the fixing member 83b is located above the air intake duct 60.

The air intake duct 60 extends forward from the front stand pipe 15 side through the open portion 87 of the stay 65. That is, the periphery of the intake duct 60 is surrounded by the left and right arm members 75L and 75R, the lower connecting portion 86, and the cross member 76.

When the stay 65 is assembled to the front seat pipe 15, the left and right divided arm members 75L and 75R are assembled to sandwich the intake duct 60 from the left and right, and then the cross member 76 is assembled to the arm members 75L and 75R. Therefore, the stay 65 is excellent in assemblability.

As shown in fig. 9, the intake duct 60 includes a pair of protrusions 60c extending outward in the vehicle width direction from the left and right side surfaces 60 b.

The rear end portion of the intake duct 60 is coupled to the front surface of the front seat pipe 15, and the boss portion 60c is fixed to the duct support portion 82 of the arm members 75L, 75R, whereby the intake duct 60 is supported to the vehicle body.

Referring to fig. 4, 5, 7, and 8, the left and right arm members 75L and 75R extend to a position above the upper surface 60d of the intake duct 60. Left and right cover support portions 80 provided at the upper ends of the left and right arm members 75L, 75R are located above the upper surface 60d of the intake duct 60 and outside the side surfaces 60b of the intake duct 60 in the vehicle width direction.

Referring to fig. 3 and 11 in combination, the front cover 40 is fastened to the cover support portion 80 by cover fasteners 85a, 85b, 85 c.

Specifically, the cover fasteners 85a and 85b fasten the front cover 40 and the mirror 50 together to the fixing portions 80b and 80c of the cover support portion 80. The cover fixtures 85a and 85b are hidden by the cover portion of the base end portion of the rearview mirror 50. Cover fastener 85c fastens front cover 40 to fixing portion 80d of support plate portion 80a of stay 65.

The cover support portion 80 extends rearward and upward along the front cover 40 inclined so as to be low in the front and high in the rear, and therefore can support the front cover 40 well.

In the present embodiment, the cover support portion 80 at the upper end of the stay 65 is located above the upper surface 60d of the intake duct 60. Therefore, the front cover 40 can be efficiently supported by the support portion that avoids the position of the intake duct 60 upward.

The cross member 76 is located directly above the upper surface 60d of the intake duct 60, and supports the meter 67. The meter 67 is positioned above the upper surface 60d, and is supported by the beam member 76 in a posture in which the information display surface 67a faces rearward and upward.

Fig. 12 is a cross-sectional view XII-XII of fig. 4. Fig. 13 is a left side view of the front structure of the motorcycle 1. In fig. 13, the vehicle body cover, the resonator 70, and the like are not illustrated, and only the right headlamp among the left and right headlamps 52 is illustrated.

Referring to fig. 4, 12, and 13, the steering damper 71 is a damper that damps the rotation of the front fork 12, and connects the vehicle body and the front fork 12.

The steering damper 71 includes: a damper portion 90 in which the piston slides against a resistance force; and a control unit 91 that adjusts the damping force of the damper unit 90.

The damper 90 includes: a cylindrical portion 90a extending in the vehicle width direction; a piston rod 90b that performs an impact motion in the axial direction of the cylindrical portion 90 a; a fork connecting portion 90c provided at an end of the piston rod 90 b; and a vehicle body coupling portion 90d projecting rearward from the cylindrical portion 90 a. The piston is supported by the piston rod 90b and moves in the cylindrical portion 90 a.

The control unit 91 includes an actuator (e.g., a motor) or the like for adjusting the damping force of the damper unit 90 in the 2 nd cylindrical portion 91a extending in the vehicle width direction.

The cylindrical portion 90a and the 2 nd cylindrical portion 91a are arranged substantially parallel to each other and arranged in front-rear, and the outer peripheral portion of the cylindrical portion 90a and the outer peripheral portion of the 2 nd cylindrical portion 91a are integrally joined.

The steering damper 71 is disposed below the lower surface 60e of the intake duct 60 between the actuator 66 and the bottom bridge 55.

The steering damper 71 is coupled to the vehicle body via the vehicle body coupling portion 90d of the damper portion 90.

Specifically, the vehicle body coupling portion 90d is disposed below the lower coupling portion 86 of the stay 65, and is fastened to the overlapping portion 86a of the lower coupling portion 86 by the fastening member 86b that fastens the left and right arm members 75L, 75R. Therefore, the steering damper 71 can be easily fixed to the vehicle body by the fastener 86b for the stay 65.

In the present embodiment, the lower connection portion 86 at the lower end of the stay 65 is located below the lower surface 60e of the air intake duct 60. Therefore, the steering damper 71 can be efficiently supported by the support portion that avoids the position of the intake duct 60 downward by the lower connecting portion 86.

The bottom bridge 55 includes damper support portions 55a extending forward from one of left and right ends of the bottom bridge 55.

The fork connecting portion 90c of the piston rod 90b of the steering damper 71 is connected to the damper support portion 55a of the bottom axle 55.

When the front fork 12 rotates left and right, the piston rod 90b performs an impact motion against the resistance, and the rotation of the front fork 12 is attenuated.

The lower surface 60e of the intake duct 60 extends forward while curving downward. Damper 90 and controller 91 are arranged such that one of damper 90 and controller 91 is positioned forward and downward of the other, as viewed from the side of the vehicle, along the inclination of lower surface 60e of intake duct 60. That is, the control unit 91 is disposed forward and downward of the damper unit 90 in a vehicle side view so as to be inclined in a front-low-rear-high direction (rear-high-front-low direction) along the lower surface 60 e. Therefore, the steering damper 71 can be compactly disposed below the intake duct 60.

Referring to fig. 6, 7, 12, and 13, the pair of headlamps 52 are disposed apart on the left and right of the front portion of the intake duct 60. The headlight 52 is disposed in front of the stay 65. The headlamps 52 are arranged substantially symmetrically left and right.

The headlight 52 is disposed so as to face the side surface 60b of the intake duct 60 and overlap the side surface 60b when viewed from the side of the vehicle.

Each headlamp 52 includes: a housing 94 supporting the light source 93; and a lens 95 attached to the housing and covering the light source 93 from the front.

The housing 94 has a box shape with a front surface opened forward, and accommodates the light source 93 therein. The lens 95 covers the front surface of the housing 94. The light source 93 is, for example, an LED (light emitting diode).

The lens 95 is a light emitting surface that emits light of the light source 93 forward. The front surface of the lens 95 is inclined so as to be positioned rearward as it faces outward in the vehicle width direction in a plan view.

The front surface of the lens 95 includes a protrusion 95a protruding forward. The projection 95a extends from one end to the other end of the lens 95 in the vehicle width direction, and is inclined so as to rise as going outward in the vehicle width direction when viewed from the front of the vehicle.

As shown in fig. 13, the lower end portion 52a of the headlight 52 extends to a position below the lower surface 60e of the intake duct 60 and the lower end of the distal end portion 60a when viewed from the side of the vehicle. Thus, a lower space 96 sandwiched between the lower end portions 52a of the left and right headlamps 52 is formed below the lower surface 60e of the intake duct 60. The lower end 52a is constituted by the lower end of the lens 95 and the lower end of the housing 94.

Referring to fig. 9 and 13, a pair of headlamp support portions 60f extending outward in the vehicle width direction from the left and right side surfaces 60b are provided at the front portion of the intake duct 60.

The headlight 52 is fixed to the headlight support portion 60f of the intake duct 60 and the headlight stay portion 81 of the stay 65. That is, the headlamp 52 is supported from the inside in the vehicle width direction by the intake duct 60 and from the rear by the stay 65.

Referring to fig. 3 to 7, the vehicle body cover includes: a cover 61 that covers the left and right headlamps 52 and the distal end portions 60a of the intake duct 60 from the front; and a lower surface cover 97 that covers the intake duct 60 and the head lamp 52 from below.

The cover 61 is provided below the front cover 40 between the left and right front covers 41. The lower end of the front cover 40 overlaps the upper portion of the cover 61 from the front, thereby concealing the upper portion of the cover 61.

The cover 61 includes: a pair of lens openings 61a for exposing the protruding portions 95a of the lenses 95 of the left and right headlamps 52 forward; and an intake opening portion 61b that communicates the opening of the distal end portion 60a of the intake duct 60 with the front.

The protruding portion 95a of the lens 95 is inserted into the lens opening 61a from the rear, and is exposed forward from the lens opening 61 a.

The intake opening 61b covers and hides the peripheral edge of the distal end portion 60a of the intake duct 60, and exposes the opening of the distal end portion 60a forward. Intake opening 61b is an external appearance portion that is visible from the outside when viewed from the front of the vehicle. The intake opening 61b is formed to match the shape of the front cover 40 so as to be continuous with the lower end portion of the front cover 40 including the intake port 51.

When viewed from the front, the protruding portion 95a of the lens 95 is exposed forward from between the front cover 40 and the cover 61.

As shown in fig. 12 and 13, the lens 95 of the headlight 52 extends forward of the distal end portion 60a of the intake duct 60, and the protruding portion 95a of the lens 95 is exposed outward from the lens opening 61a of the cover 61. The housing 94 of the headlight 52 is disposed rearward of the distal end portion 60a of the intake duct 60 and is located inside the front cover 40.

The driver 66 is a light source control unit that controls power supplied to the headlamp 52.

The actuator 66 includes a control circuit and the like in a box-shaped housing 66 a. The case 66a is formed longer in the front-rear direction than in the up-down direction, and has a rectangular shape when viewed from the side of the vehicle.

The actuator 66 is disposed below the lower surface 60e of the intake duct 60 and between the lower ends 52a of the left and right headlamps 52 in front of the bottom bridge 55. That is, the actuator 66 is disposed in the lower space 96. Therefore, the actuator 66 can be compactly arranged by utilizing the lower space 96.

A pair of actuator support portions 60g are provided in front and rear rows in a front portion of a lower surface 60e of the intake duct 60.

The front end and the lower end of the housing 66a are fastened to the actuator support portion 60g, and the actuator 66 is supported by the intake duct 60.

The actuator 66 is disposed so as to be inclined low in front and high in rear along the inclination of the lower surface 60e of the intake duct 60 when viewed from the side of the vehicle.

The steering damper 71 is disposed below the lower surface 60e of the intake duct 60 and between the actuator 66 and the bottom axle 55 in the vehicle front-rear direction.

When the front fork 12 is operated left and right, the steering damper 71 rotates as shown by the imaginary line in fig. 13 and moves forward, so that the front portion of the steering damper 71 is positioned between the lower end portions 52a of the left and right headlamps 52. This ensures the movable range of the turn damper 71 by the space between the lower ends 52a of the left and right headlamps 52, and thus the turn damper 71 can be efficiently disposed.

The left and right headlamps 52, the driver 66, the steering damper 71, and the lower space 96 are covered from below by a lower surface cover 97 (fig. 4). The lower surface cover 97 extends rearward from the lower edge side of the cover 61 toward the side of the bottom bridge 55.

Referring to fig. 4 and 13, the intake duct 60 includes a pair of left and right mounting holes 60h penetrating the side surface 60 b.

Referring to fig. 4 to 8, the left and right resonators 70 are mounted in the mounting holes 60h from the outside in the vehicle width direction. Resonator 70 is disposed on the vehicle width direction outer side with respect to intake duct 60, and the upper portion of resonator 70 extends to a position above upper surface 60d of intake duct 60. Further, resonator 70 is disposed above housing 94 of left and right headlamps 52 and in front of arm members 75L and 75R of stay 65 and meter 67.

The resonator 70 is hollow, and the resonator 70 communicates with the intake passage of the intake duct 60 via the mounting hole 60 h. A portion of the air passing through the intake duct 60 flows into the interior of the resonator 70. The resonator 70 reduces intake air sound by resonance.

Referring to fig. 4 to 8 and 13, the electric component 68 is a control unit that controls functional components of the motorcycle 1. The electric component 68 is, for example, a control unit that controls a handlebar lock device that locks the turning of the front fork 12 when the motorcycle 1 is parked, or a control unit that controls a brake device of the motorcycle 1.

The electric component 68 includes a control circuit and the like in a box-shaped case 68 a. The case 68a is formed longer in the front-rear direction than in the up-down direction, and has a rectangular shape when viewed from the side of the vehicle.

The electric component 68 is fixed to the upper surface 60d of the front portion of the intake duct 60. The electric component 68 is disposed along the inclination of the upper surface 60d with the lower front and the higher rear, and is inclined with the lower front and the higher rear.

The electric component 68 is disposed in front of the stay 65, the meter 67, and the resonator 70. The electric components 68 are housed within the width of the intake duct 60 in the vehicle width direction in plan view.

The roll angle sensor 69 detects a left and right inclination of the motorcycle 1 when turning. The roll angle sensor 69 is disposed above the upper surface 60d of the front portion of the intake duct 60 between the electric components 68 and the meter 67. The roll angle sensor 69 is disposed at the center of the vehicle width in front of the cross member 76.

As described above, according to the embodiment to which the present invention is applied, the front structure of the motorcycle 1 includes: a front cover 40 provided in front of the vehicle frame 10; an intake duct 60 disposed inside the front cover 40; and a stay 65 that supports the front cover 40, the meter 67, and the steering damper 71 as vehicle body constituent members, the intake duct 60 supported by the vehicle body frame 10 extending in the front-rear direction, the stay 65 being disposed on the left and right of the intake duct 60 and supported by the vehicle body frame 10, the stay 65 including a pair of left and right arm members 75L, 75R extending in the up-down direction on the sides of the intake duct 60, the cover support portion 80 that is the upper end of the arm members 75L, 75R being located above the upper surface 60d of the intake duct 60, and the lower connection portion 86 that is the lower end of the arm members 75L, 75R being located below the lower surface 60e of the intake duct 60.

According to this configuration, arm members 75L and 75R of stay 65 extend vertically so as to avoid intake duct 60 from the left and right, and extend above and below intake duct 60, so that the shape of stay 65 has a high degree of freedom. Therefore, the front cover 40, the meter 67, and the steering damper 71 can be efficiently supported.

The stay 65 includes a lower coupling portion 86 that couples the left and right arm members 75L and 75R to each other in the left-right direction below the intake duct 60. According to this configuration, the left and right arm members 75L and 75R are coupled by the lower coupling portion 86, and therefore the rigidity of the stay can be improved.

The stay 65 includes a cross member 76 as an upper connecting portion that connects the left and right arm members 75L and 75R to each other on the left and right above the intake duct 60. According to this configuration, since the left and right arm members 75L and 75R are coupled by the cross member 76, the rigidity of the stay 65 can be improved. The stay 65 surrounds the intake duct 60 from the periphery by the left and right arm members 75L, 75R and the cross member 76, and thus easily supports the vehicle body constituent members.

The upper coupling portion is a cross member 76 that is separate from the arm members 75L and 75R, and the cross member 76 supports the meter 67. According to this structure, since the cross member 76 is separate from the arm members 75L and 75R, the stay 65 can be easily assembled to the vehicle body side. Further, the meter 67 can be supported above the intake duct 60 by the cross member 76.

Further, the left and right arm members 75L, 75R extend forward and upward, and a cover support portion 80 that is inclined lower in front and higher in rear when viewed from the vehicle side is provided at the upper ends of the arm members 75L, 75R. According to this configuration, since the left and right arm members 75L and 75R extend obliquely upward and forward, the space occupied by the arm members 75L and 75R can be reduced, and the front cover 40, the meter 67, and the steering damper 71 can be easily supported in the entire vertical direction and the entire front-rear direction. Further, the front cover 40 can be supported well by the cover support portion 80 inclined so as to be low in front and high in rear.

The left and right arm members 75L, 75R include an upper fixing portion 79a and a lower fixing portion 78c connected to the front seat pipe 15, which is the front end portion of the frame 10, and the upper fixing portion 79a and the lower fixing portion 78c are provided above and below the intake duct 60. According to this configuration, since the upper fixing portion 79a and the lower fixing portion 78c are provided separately from each other in the vertical direction of the intake duct 60, the left and right arm members 75L and 75R can be supported with high rigidity by the front end portion of the frame 10.

The left and right arm members 75L, 75R have a cutout portion 84 between the upper and lower upper fixing portions 79a, 78c when viewed from the side of the vehicle. According to this structure, the rigidity of the stay 65 can be ensured, and the stay 65 can be made compact.

The lower coupling portion 86 is a pair of inner extending portions 77L, 77R extending inward in the vehicle width direction from the left and right arm members 75L, 75R, the left and right inner extending portions 77L, 77R are coupled to each other by a fastener 86b, a steering damper 71 for coupling the front fork 12 supporting the front wheel 2 and the vehicle body is provided, and the steering damper 71 is fastened to the lower coupling portion 86 by the fastener 86 b. With this configuration, the steering damper 71 can be attached with a simple structure by the fastener 86b that fastens the left and right inner extending portions 77L, 77R.

The arm members 75L and 75R include a duct support portion 82 that supports the intake duct 60. With this configuration, the intake duct 60 can be supported by the arm members 75L and 75R.

Further, according to the embodiment to which the present invention is applied, the front structure of the motorcycle 1 includes: an intake duct 60 disposed in the front cover 40; a pair of headlamps 52 disposed on the left and right of the intake duct 60 inside the front cover 40 and emitting light forward; and an actuator 66 that drives the headlamps 52, wherein the left and right headlamps 52 are disposed so as to face the left and right side surfaces 60b of the intake duct 60, and the lower end portions 52a of the headlamps 52 extend to a position below the lower surface 60e of the intake duct 60, and the actuator 66 is disposed between the left and right lower end portions 52a below the intake duct 60.

According to this configuration, the actuator 66 can be disposed below the intake duct 60 by utilizing the space between the lower end portions 52a of the left and right headlamps 52, and the headlamps 52 and the actuator 66 can be efficiently disposed.

The housing 66a of the actuator 66 is disposed obliquely along the inclination of the intake duct 60. With this configuration, the actuator 66 can be compactly arranged along the inclination of the intake duct 60.

Further, an air cleaner box 31 is provided behind the front seat tube 15, the front seat tube 15 rotatably supports the front fork 12, the intake duct 60 is disposed in the vehicle width center and connected to the air cleaner box 31, the intake duct 60 extends forward while being bent downward from the front seat tube 15 side, the front fork 12 includes a bottom bridge 55 that connects the left and right fork tubes 56 to each other on the left and right under the front seat tube 15, the bottom bridge 55 is positioned under the intake duct 60, a steering damper 71 that connects the bottom bridge 55 to the vehicle body is provided, the steering damper 71 is disposed between the actuator 66 and the bottom bridge 55 under the intake duct 60, and at least a part (front end portion) of the steering damper 71 is rotatable between the left and right lower end portions 52a of the headlight 52.

According to this configuration, the steering damper 71 can be disposed below the intake duct 60 that curves forward and downward by utilizing the space between the actuator 66 and the bottom bridge 55.

Further, the steering damper 71 includes: a damper 90 in which the piston slides; and a control unit 91 that adjusts the damping force of the damper unit 90, wherein the damper unit 90 and the control unit 91 extend long in the vehicle width direction, and the control unit 91 and the damper unit 90 are arranged such that the control unit 91 is positioned forward and downward of the damper unit 90 when viewed from the side of the vehicle. With this configuration, the steering damper 71 can be compactly disposed below the intake duct 60 that curves downward in the front direction.

The headlight 52 further includes: a lens 95 exposed forward from the front cover 40; and a housing 94 that supports the lens 95, the housing 94 being located rearward of the distal end portion 60a of the intake duct 60, and the lens 95 extending forward of the distal end portion 60 a. With this configuration, the housing 94 can be compactly arranged in the front cover 40 at a position rearward of the distal end portion 60a of the intake duct 60, and the lens 95 can be exposed forward from the front cover 40.

Further, a cover 61 is provided to cover the left and right headlamps 52 and the intake duct 60 from the front, and the cover 61 includes: a lens opening 61a for exposing the lens 95 forward; and an intake opening 61b that communicates the intake duct 60 with the front, the intake opening 61b being an external appearance portion formed to match the front cover 40. According to this configuration, since the cover 61 that covers the intake duct 60 from the front is provided separately from the intake duct 60, it is not necessary to match the shape of the distal end portion 60a of the intake duct 60 to the shape of the front cover 40, and the intake duct 60 can be formed in a simple shape. This facilitates positioning of the headlight 52 with respect to the intake duct 60.

The above embodiment shows an embodiment to which the present invention is applied, and the present invention is not limited to the above embodiment.

In the above embodiment, the control unit 91 and the damper unit 90 of the steering damper 71 are arranged such that the control unit 91 is located in the front-lower direction of the damper unit 90 when viewed from the side of the vehicle, but the present invention is not limited to this. For example, the damper portion 90 may be located forward and downward of the controller 91 when viewed from the side of the vehicle.

In the above-described embodiment, the motorcycle 1 as a saddle type vehicle has been described as an example of the vehicle, but the present invention is not limited to this, and the present invention can be applied to a three-wheel saddle type vehicle having two front wheels or two rear wheels, a saddle type vehicle having four or more wheels, and other vehicles.

Claims (11)

1. A front structure of a vehicle, comprising: a front cover (40) disposed in front of the vehicle frame (10); an intake duct (60) disposed inside the front cover (40); and a stay (65) that supports a vehicle body constituent member, the intake duct (60) supported by the vehicle frame (10) extending in the front-rear direction, the vehicle front structure being characterized in that,

the air intake duct (60) extends forward from a front vertical pipe (15), the front vertical pipe (15) rotatably supports a front fork (12) that supports a front wheel (2),

the stay (65) is disposed on the left and right of the intake duct (60) in front of the front seat pipe (15) and supported by the frame (10),

the stay (65) includes a pair of left and right arm members (75L, 75R) extending in the vertical direction on the side of the intake duct (60),

the upper end of the arm member (75L, 75R) is located above the upper surface (60d) of the air intake duct (60), and the lower end of the arm member (75L, 75R) is located below the lower surface (60e) of the air intake duct (60).

2. The front structure of a vehicle according to claim 1,

the stay (65) includes a lower connection section (86) that connects the left and right arm members (75L, 75R) to each other on the left and right sides below the intake duct (60).

3. The front structure of a vehicle according to claim 1,

the stay (65) includes an upper connection portion that connects the left and right arm members (75L, 75R) to each other on the left and right above the intake duct (60).

4. The front structure of the vehicle according to claim 3,

the upper connection part is a beam member (76) that is separate from the arm members (75L, 75R), and the beam member (76) supports a meter (67).

5. The front structure of a vehicle according to claim 1,

the arm members (75L, 75R) on the left and right extend upward and forward,

a cover support part (80) which is inclined in a manner that the front part is lower and the rear part is higher when viewed from the side of the vehicle is arranged at the upper end of the arm parts (75L, 75R).

6. The front structure of a vehicle according to claim 1,

the left and right arm members (75L, 75R) are provided with fixing portions connected to the front end portion of the frame (10),

the fixing portions are provided at least above and below the air intake duct (60).

7. The front structure of the vehicle according to claim 6,

the left and right arm members (75L, 75R) have a cutout portion (84) between the upper and lower fixing portions when viewed from the side of the vehicle.

8. The front structure of a vehicle according to claim 2,

the lower connecting portion (86) is a pair of inner extending portions (77L, 77R) extending inward in the vehicle width direction from the left and right arm members (75L, 75R), the left and right inner extending portions (77L, 77R) are connected to each other by a fastener (86b),

the front structure of the vehicle is provided with a steering damper (71), the steering damper (71) connects a vehicle body and a front fork (12) supporting a front wheel (2),

the steering damper (71) is fastened to the lower link portion (86) by the fastener (86 b).

9. The front structure of the vehicle according to any one of claims 1 to 8,

the arm members (75L, 75R) are provided with duct support sections (82) that support the intake duct (60).

10. A front structure of a vehicle, comprising: a front cover (40) disposed in front of the vehicle frame (10); an intake duct (60) disposed inside the front cover (40); and a stay (65) that supports a vehicle body constituent member, the intake duct (60) supported by the vehicle frame (10) extending in the front-rear direction, the vehicle front structure being characterized in that,

the stay (65) is disposed on the left and right of the intake duct (60) and supported by the frame (10),

the stay (65) includes a pair of left and right arm members (75L, 75R) extending in the vertical direction on the side of the intake duct (60),

the upper end of the arm member (75L, 75R) is positioned above the upper surface (60d) of the air intake duct (60), the lower end of the arm member (75L, 75R) is positioned below the lower surface (60e) of the air intake duct (60),

the arm members (75L, 75R) on the left and right extend upward and forward,

a cover support part (80) which is inclined in a manner that the front part is lower and the rear part is higher when viewed from the side of the vehicle is arranged at the upper end of the arm parts (75L, 75R).

11. A front structure of a vehicle, comprising: a front cover (40) disposed in front of the vehicle frame (10); an intake duct (60) disposed inside the front cover (40); and a stay (65) that supports a vehicle body constituent member, the intake duct (60) supported by the vehicle frame (10) extending in the front-rear direction, the vehicle front structure being characterized in that,

the stay (65) is disposed on the left and right sides of the intake duct (60) and supported by the vehicle frame (10),

the stay (65) includes a pair of left and right arm members (75L, 75R) extending in the vertical direction on the side of the intake duct (60),

the upper end of the arm member (75L, 75R) is positioned above the upper surface (60d) of the air intake duct (60), the lower end of the arm member (75L, 75R) is positioned below the lower surface (60e) of the air intake duct (60),

the stay (65) includes a lower connecting portion (86) that connects the left and right arm members (75L, 75R) to each other on the left and right sides below the intake duct (60),

the lower connecting portion (86) is a pair of inner extending portions (77L, 77R) extending inward in the vehicle width direction from the left and right arm members (75L, 75R), the left and right inner extending portions (77L, 77R) are connected to each other by a fastener (86b),

the front structure of the vehicle is provided with a steering damper (71), the steering damper (71) connects a vehicle body and a front fork (12) supporting a front wheel (2),

the steering damper (71) is fastened to the lower link portion (86) by the fastener (86 b).

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