Lean vehicle

The lean vehicle design efficiently arranges vehicle components by utilizing the space created by the rotation of the upper arm, lower arm, and tie rod, addressing the need for compact installation without enlarging the vehicle.

JP2025160652APending Publication Date: 2025-10-23YAMAHA MOTOR CO LTD
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Patent Information

Application Number
JP2024063330
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-04-10
Publication Date
2025-10-23

AI Technical Summary

Technical Problem

The increasing number of vehicle parts on lean vehicles necessitates compact arrangement without enlarging the vehicle size.

Method used

A lean vehicle design with a body frame, left and right front wheels, and a coupling mechanism that includes an upper arm, lower arm, and tie rod, allowing vehicle components to be positioned without interfering with their rotation, utilizing dead space for compact installation.

Benefits of technology

Vehicle components are arranged compactly without increasing the vehicle's size by effectively utilizing the unique space created by the rotation of the coupling mechanism components.

✦ Generated by Eureka AI based on patent content.

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Abstract

To utilize a structure unique to a lean vehicle to arrange vehicle components compactly without increasing the size of the lean vehicle.SOLUTION: An ECU 50A is disposed in an area located at the rear relative to a front end in a vehicle body front-back direction of a tie rod 67, the front relative to a rear end in the vehicle body front-back direction of an upper arm 41, a right side relative to a left end in a vehicle body lateral direction of a lower arm 42 when the lower arm 42 is located in a second left inclined position, a left side relative to a right end in the vehicle body lateral direction of the lower arm 42 when the lower arm 42 is in a second right inclined position, an upper side in a vehicle vertical direction relative to a third axis C3, and a lower side in the vehicle body vertical direction relative to a position a first distance A1 away to the upper side in the vehicle body vertical direction from a first axis C1, the area set so as to avoid contact with the upper arm 41, the lower arm 42, and the tie rod 67 when the upper arm 41, the lower arm 42, and the tie rod 67 rotate.SELECTED DRAWING: Figure 9
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Description

[Technical Field]

[0001] The present invention relates to a lean vehicle that has a left front wheel and a right front wheel and whose body frame leans when turning left or right. [Background technology]

[0002] Conventionally, there has been known a lean vehicle equipped with a left front wheel and a right front wheel, in which the body frame tilts when turning left or right, as described in, for example, Patent Document 1. When turning left or right, the rider turns the handlebars to rotate the left front wheel and the right front wheel to the left or right, and tilts the body frame together with the left front wheel and the right front wheel relative to the ground. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-51631 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, the number of vehicle parts, such as electrical equipment, mounted on vehicles has tended to increase. However, it is not desirable to increase the size of the vehicle in order to secure installation space for the vehicle parts.

[0005] An object of the present invention is to provide a lean vehicle that utilizes a configuration unique to lean vehicles, allowing vehicle parts to be arranged compactly without increasing the size of the vehicle. [Means for solving the problem]

[0006] The lean vehicle disclosed herein includes a body frame having a head pipe, a left front wheel disposed to the left of the head pipe, a right front wheel disposed to the right of the head pipe, a steering shaft rotatably supported on the head pipe, a coupling mechanism that connects the body frame to the left and right front wheels so that the body frame, the left front wheel, and the right front wheel can lean relative to the ground, and that connects the steering shaft to the left and right front wheels so that the left and right front wheels can rotate left and right together with the steering shaft, and vehicle components. The coupling mechanism has an upper arm, a lower arm, and a tie rod that are rotatably supported on the body frame about a first axis, a second axis, and a third axis that extend in the fore-and-aft direction of the vehicle, and extend left and right. The upper arm is located forward of the head pipe in the fore-and-aft direction of the vehicle. The lower arm is located forward of the upper arm in the fore-and-aft direction of the vehicle and lower in the up-and-down direction of the vehicle. The tie rod is disposed forward in the vehicle front-rear direction and lower in the vehicle up-down direction than the lower arm. The upper arm is rotatable between a first left inclined position extending upward in the vehicle up-down direction and to the left in the vehicle left-right direction, and a first right inclined position extending upward in the vehicle up-down direction and to the right in the vehicle left-right direction. The lower arm is rotatable between a second left inclined position extending upward in the vehicle up-down direction and to the left in the vehicle left-right direction, and a second right inclined position extending upward in the vehicle up-down direction and to the right in the vehicle left-right direction. The tie rod is rotatable between a third left inclined position extending upward in the vehicle up-down direction and to the left in the vehicle left-right direction, and a third right inclined position extending upward in the vehicle up-down direction and to the right in the vehicle left-right direction. When the distance from the first axis to the left or right end of the upper arm in the vehicle's left-right direction, whichever is farther from the first axis, is defined as a first distance, at least a portion of the vehicle part is positioned rearward of the front end of the tie rod in the vehicle's fore-and-aft direction and forward of the rear end of the upper arm in the vehicle's fore-and-aft direction.The at least some of the vehicle components are disposed to the right of the leftmost of the left end of the upper arm in the left-right direction of the vehicle body when the upper arm is in the first left tilt position, the left end of the lower arm in the left-right direction of the vehicle body when the lower arm is in the second left tilt position, and the left end of the tie rod in the left-right direction of the vehicle body when the tie rod is in the third left tilt position. The at least some of the vehicle components are disposed to the left of the rightmost of the right end of the upper arm in the left-right direction of the vehicle body when the upper arm is in the first right tilt position, the right end of the lower arm in the left-right direction of the vehicle body when the lower arm is in the second right tilt position, and the right end of the tie rod in the left-right direction of the vehicle body when the tie rod is in the third right tilt position. The at least some of the vehicle components are disposed above the third axis in the vehicle vertical direction and below the position of the first distance above the first axis in the vehicle vertical direction. The at least one portion of the vehicle component is arranged in an area that does not come into contact with the upper arm, the lower arm, and the tie rod when the upper arm, the lower arm, and the tie rod rotate.

[0007] In the lean vehicle, the vehicle components are arranged in the front portion of the lean vehicle, but in an area where they do not come into contact with the upper arm, lower arm, and tie rod when the upper arm, lower arm, and tie rod rotate. In the lean vehicle, the dead space that is unique to lean vehicles can be effectively utilized as installation space for vehicle components, so that the vehicle components can be arranged compactly without increasing the size of the lean vehicle.

[0008] A third distance is a distance from the third axis to one of the left and right ends of the tie rod in the vehicle body transverse direction that is farther from the third axis. At least some of the vehicle components may be arranged rearward of a front end of the tie rod in the vehicle body transverse direction and forward of a front end of the lower arm in the vehicle body transverse direction, within an area inside a circle whose center is the third axis and whose radius is the third distance when viewed from the front of the vehicle body transverse direction, to the right of the tie rod in the vehicle body transverse direction and above the vehicle body transverse direction when the tie rod is in the third left lean position, and to the left of the tie rod in the vehicle body transverse direction and above the vehicle body transverse direction when the tie rod is in the third right lean position.

[0009] At least a portion of the vehicle component may be disposed forward of a rear end of the tie rod in the vehicle front-rear direction.

[0010] At least a portion of the vehicle component may be disposed rearward of a rear end of the tie rod in the vehicle front-rear direction and forward of a front end of the lower arm in the vehicle front-rear direction.

[0011] A second distance is a distance from the second axis to one of the left and right ends of the lower arm in the vehicle body transverse direction that is farther from the second axis. At least a portion of the vehicle component may be disposed rearward of a front end of the lower arm in the vehicle body transverse direction and forward of a front end of the upper arm in the vehicle body transverse direction, within an area inside a circle whose center is the second axis and whose radius is the second distance when viewed from the front of the vehicle body transverse direction, to the right of the lower arm in the vehicle body transverse direction and above the vehicle body transverse direction when the lower arm is in the second left leaning position, and to the left of the lower arm in the vehicle body transverse direction and above the vehicle body transverse direction when the lower arm is in the second right leaning position.

[0012] At least a portion of the vehicle component may be located forward of a rear end of the lower arm in the vehicle front-rear direction.

[0013] At least a portion of the vehicle component may be disposed rearward of a rear end of the lower arm in the vehicle front-rear direction and forward of a front end of the upper arm in the vehicle front-rear direction.

[0014] At least a portion of the vehicle component may be arranged rearward of the front end of the upper arm in the vehicle fore-and-aft direction, forward of the rear end of the upper arm in the vehicle fore-and-aft direction, within an area inside a circle centered on the first axis and having a radius of the first distance when viewed from the front in the vehicle fore-and-aft direction, in an area to the right of the upper arm in the vehicle left-and-right direction and above the vehicle up-and-down direction when the upper arm is in the first left lean position, and in an area to the left of the upper arm in the vehicle left-and-right direction and above the vehicle up-and-down direction when the upper arm is in the first right lean position.

[0015] The lean vehicle may include a brake hose supported by the tie rod via a bracket. At least a portion of the vehicle component may be located rearward of the front end of the tie rod in the vehicle longitudinal direction, forward of the rear end of the lower arm in the vehicle longitudinal direction, and, when viewed from the front of the vehicle longitudinal direction, to the right of the brake hose in the vehicle transverse direction and above the vehicle vertical direction when the tie rod is in the third left tilt position, and to the left of the brake hose in the vehicle transverse direction and above the vehicle vertical direction when the tie rod is in the third right tilt position. This reduces contact between the vehicle component and the brake hose even though the vehicle component is located near the brake hose.

[0016] The lean vehicle may include a lean lock device that locks rotation of the upper arm, the lower arm, or the tie rod. At least a portion of the lean lock device may be located rearward of a front end of the lower arm in the vehicle front-rear direction, forward of a rear end of the upper arm in the vehicle front-rear direction, to the right of the upper arm in the vehicle left-right direction and above the vehicle up-down direction when the upper arm is in the first left tilt position when viewed from the front of the vehicle front-rear direction, and to the left of the upper arm in the vehicle left-right direction and above the vehicle up-down direction when the upper arm is in the first right tilt position. The vehicle component may be located below the lean lock device in the vehicle up-down direction.

[0017] The vehicle component may be an ECU.

[0018] The lean vehicle may include a driving source for running supported by the vehicle body frame, and the ECU may be a control device that controls the driving source for running.

[0019] The ECU may be a light control unit that controls a headlight.

[0020] The vehicle component may be a communication device.

[0021] The vehicle component may be a charging port to which a power supply cord is detachably connected.

[0022] The lean vehicle may include a support frame that supports the lean lock device on the vehicle body frame, and the vehicle component may be supported by the support frame.

[0023] The support frame may include a left frame disposed to the left of the lean lock device in the vehicle left-right direction and extending downward in the vehicle up-down direction and to the right in the vehicle left-right direction, and a right frame disposed to the right of the lean lock device in the vehicle left-right direction and extending downward in the vehicle up-down direction and to the left in the vehicle left-right direction. The vehicle component may be attached to lower ends of the left frame and lower ends of the right frame. [Effects of the Invention]

[0024] According to the present invention, by utilizing a configuration unique to lean vehicles, vehicle parts can be arranged compactly without increasing the size of the vehicle. [Brief explanation of the drawings]

[0025] [Figure 1] FIG. 1 is a left side view of a lean vehicle. [Figure 2] FIG. 2 is a front view of the front portion of the lean vehicle. [Figure 3] FIG. 3 is a left side view of the front portion of the lean vehicle. [Figure 4] FIG. 4 is a plan view of the front portion of the lean vehicle. [Figure 5] FIG. 5 is a plan view of the front part of the lean vehicle during steering. [Figure 6] FIG. 6 is a front view of the front portion of the lean vehicle when leaning. [Figure 7] FIG. 7 is a front view of the front portion of a lean vehicle when leaning and steering. [Figure 8] FIG. 8 is a perspective view of the front part according to one embodiment. [Figure 9] FIG. 9 is a front view of the front part according to the embodiment. [Figure 10] FIG. 10 is a left side view of the front part according to the embodiment. [Figure 11]FIG. 11 is a front view of the front portion when the upper arm, the lower arm, and the tie rod are inclined most to the left with respect to the body frame when the lean vehicle is not being steered. [Figure 12] FIG. 12 is a front view of the front portion when the upper arm, the lower arm, and the tie rod are inclined most to the right with respect to the body frame when the lean vehicle is not being steered. [Figure 13] FIG. 13 is a diagram schematically illustrating the rotation of the upper arm. [Figure 14] FIG. 14 is a diagram schematically showing an area where the upper arm does not pass when the upper arm rotates, an area where the lower arm does not pass when the lower arm rotates, and an area where the tie rod does not pass when the tie rod rotates. [Figure 15] FIG. 15 is a diagram schematically showing the positional relationship of the upper arm, the lower arm, the tie rod, and the vehicle components in the longitudinal direction of the vehicle body. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, an embodiment of a lean vehicle will be described with reference to the drawings. FIGS. 1 to 7 are diagrams showing the basic configuration of a lean vehicle 1. As will be described in detail later, the lean vehicle 1 according to this embodiment is the lean vehicle 1 shown in FIGS. 1 to 7 with a modification to the front portion of the vehicle (hereinafter referred to as the front portion) (see FIG. 8). In the following explanation, the basic configuration of the lean vehicle 1 will first be described with reference to FIGS. 1 to 7, and then the front portion of the lean vehicle 1 according to this embodiment will be described in detail with reference to FIGS. 8 to 15.

[0027] FIG. 1 is a left side view of a lean vehicle 1. FIG. 2 is a front view of the front portion of the lean vehicle 1. FIG. 3 is a left side view of the front portion of the lean vehicle 1. FIG. 4 is a plan view of the front portion of the lean vehicle 1. FIG. 5 is a plan view of the front portion of the lean vehicle 1 when steering. FIG. 6 is a front view of the front portion of the lean vehicle 1 when leaning. FIG. 7 is a front view of the front portion of the lean vehicle 1 when leaning and steering.

[0028] In the following description, unless otherwise specified, the terms "front," "rear," "left," "right," "up," and "down" refer to the front, rear, left, right, top, and bottom, respectively, as seen from a virtual rider seated on the seat 2 when the lean-mounted vehicle 1, with no rider and no luggage on board, is standing upright on a horizontal plane and is not being steered and is at rest. The state in which the lean-mounted vehicle 1 is standing upright on a horizontal plane refers to a state in which the body frame 10, described below, is not tilted relative to the horizontal plane (see FIG. 2). The state in which the lean-mounted vehicle 1 is not being steered refers to a state in which the steering shaft 31, described below, is not rotating left or right, and the center lines of the left front wheel 20L and the right front wheel 20R, described below, are parallel to the center line of the lean-mounted vehicle 1 in a plan view of the vehicle. In the drawings, F, B, L, R, U, and D represent the front, rear, left, right, top, and bottom, respectively.

[0029] 1, the lean vehicle 1 includes a body frame 10, a seat 2 supported by the body frame 10, a left front wheel 20L, a right front wheel 20R (see FIG. 2), a rear wheel 28, and a power unit 4. As shown in FIG. 2, the lean vehicle 1 includes a handlebar 30 and a link mechanism 40.

[0030] As shown in Figure 4, the body frame 10 includes a head pipe 12 and a link pipe 14 located forward of the head pipe 12. The head pipe 12 supports a steering shaft 31 fixed to a handlebar 30 so that the steering shaft 31 can rotate left and right. The link pipe 14 supports a steering shaft 32 so that the steering shaft 32 can rotate left and right.

[0031] As shown in FIG. 1, the power unit 4 is supported by a body frame 10. The body frame 10 has a power unit support portion 16 that supports the power unit 4. The front end of a rear arm 29 is connected to the power unit 4 so as to be able to rotate up and down. A rear wheel 28 is attached to the rear end of the rear arm 29. The power unit 4 is connected to the rear wheel 28. The power unit 4 has a power source formed from an internal combustion engine or an electric motor. The power unit 4 drives the rear wheel 28.

[0032] 4, the left front wheel 20L is disposed to the left of the head pipe 12. The right front wheel 20R is disposed to the right of the head pipe 12. The left front wheel 20L and the right front wheel 20R are rotatable left and right together with the steering shaft 31.

[0033] The lean vehicle 1 is equipped with a left shock absorber 22L and a right shock absorber 22R. As shown in FIG. 3, the left shock absorber 22L is a so-called telescopic shock absorber. The left shock absorber 22L has a pair of front and rear telescopic elements 24. Each telescopic element 24 has an outer tube 24A and an inner tube 24B inserted into the outer tube 24A. As shown in FIG. 2, the right shock absorber 22R is disposed bilaterally symmetrical to the left shock absorber 22L. The right shock absorber 22R has a similar configuration to the left shock absorber 22L. The right shock absorber 22R also has a pair of front and rear telescopic elements 24.

[0034] As shown in FIG. 2, the lean-to vehicle 1 includes a left bracket 23L, a left bracket 25L, a right bracket 23R, and a right bracket 25R. As shown in FIG. 3, the upper end of the telescopic element 24 of the left shock absorber 22L is fixed to the left bracket 23L. The lower end of the telescopic element 24 of the left shock absorber 22L is fixed to the left bracket 25L. The left front wheel 20L is supported by the left bracket 25L. As shown in FIG. 2, the upper end of the telescopic element 24 of the right shock absorber 22R is fixed to the right bracket 23R. The lower end of the telescopic element 24 of the right shock absorber 22R is fixed to the right bracket 25R. The right front wheel 20R is supported by the right bracket 25R.

[0035] As shown in FIG. 4, the lean vehicle 1 is equipped with a steering force transmission mechanism 6. The steering force transmission mechanism 6 has a handlebar 30, a steering shaft 31, and a steering shaft 32 arranged forward of the steering shaft 31. The steering shaft 31 is supported by the head pipe 12 so as to be rotatable left and right. The steering shaft 32 is supported by the link pipe 14 so as to be rotatable left and right. The handlebar 30 is fixed to the steering shaft 31. A right grip 33R and a left grip 33L are attached to the handlebar 30. The right grip 33R is rotatable relative to the handlebar 30 and forms an accelerator grip with which the rider operates the power unit 4. The steering shaft 31 and the steering shaft 32 are connected by a connecting member 80. The connecting member 80 connects the steering shaft 31 and the steering shaft 32 so as to rotate together.

[0036] The link mechanism 40 is a four-joint parallel link (also called a parallelogram link) type link mechanism. As shown in FIG. 2, the link mechanism 40 has an upper arm 41, a lower arm 42, and a rear arm 45 (see FIG. 3) that extend left and right, respectively, and a left side member 43 and a right side member 44 that extend up and down, respectively. The link mechanism 40 is connected to the link pipe 14 so as to be rotatable left and right. The link mechanism 40 is rotatable left and right relative to the steering shaft 32 (see FIG. 5). The link mechanism 40 is configured not to rotate together with the steering shaft 32 even when the steering shaft 32 rotates left and right.

[0037] The upper arm 41 is connected to the link pipe 14 by a first central connecting shaft 41C, to the left side member 43 by a first left connecting shaft 41L, and to the right side member 44 by a first right connecting shaft 41R. The upper arm 41 is supported relative to the link pipe 14 so as to be rotatable about an axis C1 of the first central connecting shaft 41C (hereinafter referred to as the first axis). The first axis C1 extends in the front-to-rear direction of the vehicle. The upper arm 41 is supported by each of the left side member 43 and the right side member 44 so as to be rotatable about an axis extending in the front-to-rear direction of the vehicle. The upper arm 41 extends leftward and rightward from the first axis C1.

[0038] 4, the lower arm 42 is disposed in front of the link pipe 14. The rear arm 45 is disposed behind the link pipe 14. The lower arm 42 and the rear arm 45 are connected to each other.

[0039] As shown in FIG. 2, the lower arm 42 is connected to the link pipe 14 by a second central connecting shaft 42C, to the left side member 43 by a second left connecting shaft 42L, and to the right side member 44 by a second right connecting shaft 42R. The lower arm 42 is supported relative to the link pipe 14 so as to be rotatable about an axis C2 of the second central connecting shaft 42C (hereinafter referred to as the second axis). The second axis C2 extends in the vehicle's fore-and-aft direction. The lower arm 42 is supported by each of the left side member 43 and the right side member 44 so as to be rotatable about an axis extending in the vehicle's fore-and-aft direction. The lower arm 42 extends leftward and rightward from the second axis C2.

[0040] A lower portion of the left side member 43 is connected to the left bracket 23L. The left bracket 23L is connected to the left side member 43 so as to be rotatable about an axis extending in the vertical direction. A lower portion of the right side member 44 is connected to the right bracket 23R. The right bracket 23R is connected to the right side member 44 so as to be rotatable about an axis extending in the vertical direction.

[0041] As shown in FIGS. 2 and 4, the steering force transmission mechanism 6 has an intermediate transmission plate 61, a left transmission plate 62, a right transmission plate 63, an intermediate joint 64, a left joint 65, a right joint 66, and a tie rod 67.

[0042] The intermediate transmission plate 61 is connected to the lower part of the steering shaft 32. The intermediate transmission plate 61 extends forward from the steering shaft 32 (see FIG. 4). The left transmission plate 62 is connected to the left bracket 23L. The right transmission plate 63 is connected to the right bracket 23R.

[0043] As shown in FIG. 4, the intermediate joint 64 is connected to the front of the intermediate transmission plate 61. The intermediate joint 64 is connected to the intermediate transmission plate 61 so as to be rotatable about an axis extending in the vertical direction. The left joint 65 is connected to the front of the left transmission plate 62. The left joint 65 is connected to the left transmission plate 62 so as to be rotatable about an axis extending in the vertical direction. The right joint 66 is connected to the front of the right transmission plate 63. The right joint 66 is connected to the right transmission plate 63 so as to be rotatable about an axis extending in the vertical direction.

[0044] As shown in FIG. 2, the tie rod 67 is connected to the intermediate joint 64 by a third central connecting shaft 68C, to the left joint 65 by a third left connecting shaft 68L, and to the right joint 66 by a third right connecting shaft 68R. The tie rod 67 is supported relative to the intermediate joint 64 so as to be rotatable about an axis C3 of the third central connecting shaft 68C (hereinafter referred to as the third axis). The third axis C3 extends in the longitudinal direction of the vehicle. The tie rod 67 is supported by each of the left joint 65 and the right joint 66 so as to be rotatable about axes extending in the longitudinal direction of the vehicle. The tie rod 67 extends leftward and rightward from the third axis C3.

[0045] In this way, the handlebar 30, the left front wheel 20L, and the right front wheel 20R are connected via the steering force transmission mechanism 6. As shown in Figure 5, when the rider steers the handlebar 30, the steering shaft 31 rotates left and right. As the steering shaft 31 rotates, the left front wheel 20L and the right front wheel 20R rotate left and right, and the direction of travel of the left front wheel 20L and the right front wheel 20R changes, as shown by arrows S and T.

[0046] The body frame 10, the left front wheel 20L, and the right front wheel 20R are connected via a link mechanism 40. As shown in Figure 6, when the rider leans the body frame 10, the left front wheel 20L and the right front wheel 20R also lean.

[0047] As shown in FIG. 7, when the rider steers the handlebars 30 and leans the body frame 10, the left front wheel 20L and the right front wheel 20R lean and change the direction of travel.

[0048] The steering force transmission mechanism 6 and the link mechanism 40 constitute a connecting mechanism 49. The connecting mechanism 49 connects the body frame 10 to the left front wheel 20L and the right front wheel 20R so that the body frame 10, the left front wheel 20L, and the right front wheel 20R can tilt with respect to the ground, and also connects the steering shaft 31 to the left front wheel 20L and the right front wheel 20R so that the left front wheel 20L and the right front wheel 20R can rotate left and right together with the steering shaft 31.

[0049] The above is the basic configuration of the lean vehicle 1. As described above, the lean vehicle 1 according to this embodiment is obtained by adding modifications to the front section of the above basic configuration. Next, the front section of the lean vehicle 1 according to this embodiment will be described. In the following description, parts that are the same as or correspond to the above basic configuration will be given the same reference numerals, and detailed description thereof will be omitted.

[0050] FIG. 8 is a perspective view of the front portion according to this embodiment. FIGS. 9 and 10 are a front view and a left side view, respectively, of the front portion according to this embodiment. FIGS. 8 to 10 show the front portion when the lean vehicle 1 is upright and not being steered. In the following description, the straight line connecting the first axis C1, the second axis C2, and the third axis C3 in a front view of the vehicle (see FIG. 9) when the lean vehicle 1 is not being steered will be referred to as the vehicle body center line C10. Here, in a front view of the vehicle, the vehicle body center line C10 coincides with the center line of the head pipe 12. When the body frame 10 is tilted, the vehicle body center line C10 will be tilted from the vertical line.

[0051] When the lean vehicle 1 leans, the upper arm 41, the lower arm 42, and the tie rod 67 lean relative to the body frame 10 (see FIG. 6). FIG. 11 is a front view of the front portion when the upper arm 41, the lower arm 42, and the tie rod 67 are inclined most to the left relative to the body frame 10 when the lean vehicle 1 is not turning. FIG. 12 is a front view of the front portion when the upper arm 41, the lower arm 42, and the tie rod 67 are inclined most to the right relative to the body frame 10 when the lean vehicle 1 is not turning.

[0052] When the lean-mounted vehicle 1 turns left or right, the vehicle body center line C10 inclines with respect to the ground. However, in FIGS. 11 and 12, the front portion is illustrated so that the vehicle body center line C10 extends in the vertical direction of the page. In the following description, in a front view of the vehicle when the lean-mounted vehicle 1 is not steering, the upward and downward directions along the vehicle body center line C10 are referred to as the upward and downward directions in the vertical direction of the vehicle, respectively. In a front view of the vehicle when the lean-mounted vehicle 1 is not steering, the left and right directions along a perpendicular to the vehicle body center line C10 are referred to as the left and right directions in the horizontal direction of the vehicle, respectively. The symbols U', D', L', and R' in the drawings represent the upward direction in the vertical direction of the vehicle, the downward direction in the vertical direction of the vehicle, the left direction in the horizontal direction of the vehicle, and the right direction in the horizontal direction of the vehicle, respectively. The symbols F' and B' in the drawings represent the front and rear directions in the longitudinal direction of the vehicle, respectively. Note that the longitudinal direction of the vehicle is the same as the longitudinal direction of the vehicle. The front F' and rear B' in the longitudinal direction of the vehicle body coincide with the front F and rear B in the longitudinal direction of the vehicle, respectively.

[0053] The upper arm 41 is configured to be rotatable about a first axis C1, and is rotatable with respect to the body frame 10 between a predetermined first left tilt position and a predetermined first right tilt position. Fig. 11 shows the state when the upper arm 41 is in the first left tilt position. The first left tilt position is a position where the upper arm 41 extends upward in the vertical direction of the vehicle body and to the left in the left-right direction of the vehicle body. Fig. 12 shows the state when the upper arm 41 is in a first right tilt position. The first right tilt position is a position where the upper arm 41 extends upward in the vertical direction of the vehicle body and to the right in the left-right direction of the vehicle body.

[0054] The lower arm 42 is configured to be rotatable about the second axis C2, and is rotatable with respect to the body frame 10 between a predetermined second left tilt position and a predetermined second right tilt position. Fig. 11 shows the state when the lower arm 42 is in the second left tilt position. The second left tilt position is a position where the lower arm 42 extends upward in the vertical direction of the vehicle body and to the left in the left-right direction of the vehicle body. Fig. 12 shows the state when the lower arm 42 is in the second right tilt position. The second right tilt position is a position where the lower arm 42 extends upward in the vertical direction of the vehicle body and to the right in the left-right direction of the vehicle body.

[0055] The tie rod 67 is configured to be rotatable about the third axis C3 and is rotatable with respect to the body frame 10 between a predetermined third left tilt position and a predetermined third right tilt position. Fig. 11 shows the state when the tie rod 67 is in the third left tilt position. The third left tilt position is a position where the tie rod 67 extends upward in the vehicle body vertical direction and to the left in the vehicle body left-right direction. Fig. 12 shows the state when the tie rod 67 is in the third right tilt position. The third right tilt position is a position where the tie rod 67 extends upward in the vehicle body vertical direction and to the right in the vehicle body left-right direction.

[0056] The lean vehicle 1 has a front section having a connecting mechanism 49. The front section has an upper arm 41, a lower arm 42, and a tie rod 67 that rotate while the lean vehicle 1 is traveling. In the past, there was a tendency not to place vehicle parts in the front section. However, if the vehicle parts are placed in positions that do not interfere with the upper arm 41, the lower arm 42, and the tie rod 67, the vehicle parts can be placed in the front section. Therefore, in the lean vehicle 1 according to this embodiment, at least some of the vehicle parts are placed rearward of the front end of the tie rod 67 in the vehicle front-rear direction and forward of the rear end of the upper arm 41 in the vehicle front-rear direction. Furthermore, the at least some of the vehicle components are arranged to the right of the leftmost left end of the upper arm 41 in the left-right direction of the vehicle body when the upper arm 41 is in the first left tilt position, the left end of the lower arm 42 in the left-right direction of the vehicle body when the lower arm 42 is in the second left tilt position, and the left end of the tie rod 67 in the left-right direction of the vehicle body when the tie rod 67 is in the third left tilt position. Furthermore, the at least some of the vehicle components are arranged to the left of the rightmost right end of the upper arm 41 in the left-right direction of the vehicle body when the upper arm 41 is in the first right tilt position, the right end of the lower arm 42 in the left-right direction of the vehicle body when the lower arm 42 is in the second right tilt position, and the right end of the tie rod 67 in the left-right direction of the vehicle body when the tie rod 67 is in the third right tilt position. Furthermore, the at least part of the vehicle component is arranged above the third axis C3 in the vertical direction of the vehicle body and below a position a first distance A1 (the first distance A1 will be described later) above the first axis C1 in the vertical direction of the vehicle body. In addition, the at least part of the vehicle component is arranged in an area where it does not come into contact with the upper arm 41, the lower arm 42, and the tie rod 67 when the upper arm 41, the lower arm 42, and the tie rod 67 rotate.

[0057] The lean vehicle 1 includes an ECU (Electronic Control Unit) 50A as a vehicle component 50. The ECU 50A is, for example, a control device that controls a power unit 4, which is a driving source for traveling. However, the type or use of the ECU 50A is not particularly limited. The lean vehicle 1 includes headlights (not shown) disposed forward of the head pipe 12, and the ECU 50A may be a control device that controls the headlights, i.e., an LCU (Light Control Unit). The ECU 50A may also be a control device that controls a brake device (not shown), i.e., a BCU (Brake Control Unit). The ECU 50A is an example of an electronic device.

[0058] The lean vehicle 1 also includes a lean lock device 52 that locks the rotation of the upper arm 41, the lower arm 42, or the tie rod 67. The lean lock device 52 includes a rotating plate 54 that rotates together with the upper arm 41, the lower arm 42, and the tie rod 67, and calipers 56 that clamp the rotating plate 54 from the front and rear. The rotating plate 54 is configured to be rotatable about an axis extending in the fore-and-aft direction of the vehicle. In this embodiment, the rotating plate 54 is attached to the upper arm 41. The rotating plate 54 rotates about a first axis C1. The caliper 56 is attached to the body frame 10. When the caliper 56 clamps the rotating plate 54, the rotation of the rotating plate 54 is restricted. As a result, the rotation of the upper arm 41, the lower arm 42, and the tie rod 67 relative to the body frame 10 is restricted. When the caliper 56 clamps the rotating plate 54 while the body frame 10 is upright, the tilt of the body frame 10 is restricted, and the body frame 10 remains upright. In this way, the lean lock device 52 can lock the rotation of the upper arm 41, the lower arm 42, and the tie rod 67, and can prevent the body frame 10 from tilting even when an occupant seated in the seat 2 simply lightly supports the body.

[0059] As shown in FIG. 9 , the lean vehicle 1 includes a support frame 60 that supports the lean lock device 52 on the vehicle body frame 10. The support frame 60 includes a left frame 60L disposed to the left of the lean lock device 52 and a right frame 60R disposed to the right of the lean lock device 52. The left frame 60L extends downward and to the right, and the right frame 60R extends downward and to the left. The left frame 60L and the right frame 60R are formed in a V-shape when viewed from the front in the longitudinal direction of the vehicle body. The ECU 50A is attached to the lower end of the left frame 60L and the lower end of the right frame 60R. The ECU 50A is supported by the support frame 60.

[0060] A bracket 35 is fixed to the tie rod 67. A brake hose 36 is supported on the bracket 35. The brake hose 36 is supported by the tie rod 67 via the bracket 35. Although not shown, a left brake device is attached to the left front wheel 20L, and a right brake device is attached to the right front wheel 20R. The brake hose 36 connected to the left brake device is supported by a bracket 35 fixed to a portion of the tie rod 67 to the left of the third axis C3. The brake hose 36 connected to the right brake device is supported by a bracket 35 fixed to a portion of the tie rod 67 to the right of the third axis C3. Because the brake hose 36 is supported by the tie rod 67, it is configured to rotate together with the tie rod 67.

[0061] As shown in FIG. 9, the distance from the first axis C1 to either the left end or the right end of the upper arm 41, whichever is farther from the first axis C1, is defined as a first distance A1. Here, the distance from the first axis C1 to the left end of the upper arm 41 and the distance from the first axis C1 to the right end of the upper arm 41 are equal to each other, and both are the first distance A1. A dashed straight line 41AL in FIG. 9 is a straight line extending in the left-right direction of the vehicle body upward from the first axis C1, passing through a position at the first distance A1. The ECU 50A and the lean lock device 52 are disposed above the third axis C3 and below the position at the first distance A1 above the first axis C1.

[0062] As described above, the upper arm 41 is rotatable about the first axis C1 between the first left tilt position and the first right tilt position. FIG. 13 is a diagram schematically illustrating the rotation of the upper arm 41. A circle B1 in FIG. 13 is a circle whose center is the first axis C1 and whose radius is a first distance A1. As the upper arm 41 rotates about the first axis C1, it moves within a partial area of ​​the circle B1. The imaginary lines in FIG. 13 represent the first left tilt position and the first right tilt position of the upper arm 41. The shaded area R1 is an area that, when viewed from the front in the vehicle longitudinal direction, is above the first axis C1 in the vehicle body vertical direction, to the right of the upper arm 41 in the vehicle body lateral direction and above the upper arm 41 in the vehicle body vertical direction when the upper arm 41 is in the first left tilt position, and to the left of the upper arm 41 in the vehicle body lateral direction and above the upper arm 41 in the vehicle body vertical direction when the upper arm 41 is in the first right tilt position. This region R1 is an area above the first axis C1, and is an area obtained by excluding the area within which the upper arm 41 can move from a circle having a radius of the first distance A1 and centered on the first axis C1. This region R1 is an area that does not come into contact with the upper arm 41 even when the upper arm 41 rotates. If a vehicle part is placed in region R1, the vehicle part will not come into contact with the upper arm 41 even when the upper arm 41 rotates.

[0063] Similarly, when viewed from the front in the fore-and-aft direction of the vehicle body, the following regions R2 (see FIG. 14) are areas that do not come into contact with the lower arm 42 even when the lower arm 42 rotates: area R2 is above the second axis C2 in the vertical direction of the vehicle body, area R2 is to the right of the lower arm 42 in the horizontal direction of the vehicle body and above the vertical direction of the vehicle body when the lower arm 42 is in the second left tilt position, and area R2 is to the left of the lower arm 42 in the horizontal direction of the vehicle body and above the vertical direction of the vehicle body when the lower arm 42 is in the second right tilt position. If a vehicle component is placed in region R2, the vehicle component will not come into contact with the lower arm 42 even when the lower arm 42 rotates.

[0064] When viewed from the front in the fore-and-aft direction of the vehicle body, the following regions R3 (see FIG. 14) are located above the third axis C3 in the vertical direction of the vehicle body, to the right of the tie rod 67 in the horizontal direction of the vehicle body and above the vertical direction of the vehicle body when the tie rod 67 is in the third left tilt position, and to the left of the tie rod 67 in the horizontal direction of the vehicle body and above the vertical direction of the vehicle body when the tie rod 67 is in the third right tilt position: these regions do not come into contact with the tie rod 67 even when the tie rod 67 rotates. If a vehicle component is placed in region R3, the vehicle component will not come into contact with the tie rod 67 even when the tie rod 67 rotates.

[0065] In FIG. 10 , dashed lines 67FL and 67BL are lines that extend in the vertical direction of the vehicle body and pass through the front and rear ends of the tie rod 67, respectively. Dashed lines 42FL and 42BL are lines that extend in the vertical direction of the vehicle body and pass through the front and rear ends of the lower arm 42, respectively. Dashed lines 41FL and 41BL are lines that extend in the vertical direction of the vehicle body and pass through the front and rear ends of the upper arm 41, respectively. In the front portion, a region rearward of the rear end of the tie rod 67 and forward of the front end of the lower arm 42, and a region rearward of the rear end of the lower arm 42 and forward of the front end of the upper arm 41 are regions that do not come into contact with the upper arm 41, the lower arm 42, and the tie rod 67 when the upper arm 41, the lower arm 42, and the tie rod 67 rotate. However, in this embodiment, the rear end of the lower arm 42 is located rearward of the front end of the upper arm 41, so there is no region rearward of the rear end of the lower arm 42 and forward of the front end of the upper arm 41.

[0066] If the vehicle component is arranged in an area of ​​the front portion that does not come into contact with the upper arm 41, the lower arm 42, and the tie rod 67 when the upper arm 41, the lower arm 42, and the tie rod 67 rotate, the vehicle component can be arranged in the front portion without interfering with the upper arm 41, the lower arm 42, and the tie rod 67. In the present embodiment, the ECU 50A, which is an example of a vehicle component 50, is arranged in an area that does not come into contact with the upper arm 41, the lower arm 42, and the tie rod 67 when the upper arm 41, the lower arm 42, and the tie rod 67 rotate.

[0067] 10, at least a portion of the ECU 50A is disposed rearward in the vehicle longitudinal direction from the rear end of the tie rod 67 and forward in the vehicle longitudinal direction from the front end of the upper arm 41. Here, the entire ECU 50A is disposed rearward in the vehicle longitudinal direction from the rear end of the tie rod 67 and forward in the vehicle longitudinal direction from the front end of the upper arm 41.

[0068] 11 and 12 , when viewed from the front in the vehicle longitudinal direction, at least a portion of the ECU 50A is disposed to the right of the lower arm 42 in the left-right direction of the vehicle body and above the vertical direction of the vehicle body when the lower arm 42 is in the second left tilt position, and to the left of the lower arm 42 in the left-right direction of the vehicle body and above the vertical direction of the vehicle body when the lower arm 42 is in the second right tilt position. When viewed from the front in the vehicle longitudinal direction, the entire ECU 50A is disposed above the third axis C3 in the vertical direction of the vehicle body, to the right of the tie rod 67 in the left-right direction of the vehicle body and above the vertical direction of the vehicle body when the tie rod 67 is in the third left tilt position, and to the left of the tie rod 67 in the left-right direction of the vehicle body and above the vertical direction of the vehicle body when the tie rod 67 is in the third right tilt position.

[0069] 14, at least a part of the ECU 50A is arranged in the region R3. Here, the entire ECU 50A is arranged in the region R3. At least a part of the ECU 50A is arranged in the region R2.

[0070] 10 , the lean lock device 52 is disposed rearward of the rear end of the tie rod 67 in the vehicle longitudinal direction and forward of the rear end of the upper arm 41 in the vehicle longitudinal direction. A portion of the lean lock device 52 is disposed rearward of the rear end of the tie rod 67 and forward of the front end of the lower arm 42. Another portion of the lean lock device 52 is disposed rearward of the front end of the lower arm 42 and forward of the rear end of the upper arm 41.

[0071] 11 and 12, the lean lock device 52 is disposed to the right of the lower arm 42 in the left-right direction of the vehicle body and above the vertical direction of the vehicle body when the lower arm 42 is in the second left tilt position, and to the left of the lower arm 42 in the left-right direction of the vehicle body and above the vertical direction of the vehicle body when the lower arm 42 is in the second right tilt position. At least a portion of the lean lock device 52 is disposed to the right of the upper arm 41 in the left-right direction of the vehicle body and above the vertical direction of the vehicle body when the upper arm 41 is in the first left tilt position, and to the left of the upper arm 41 in the left-right direction of the vehicle body and above the vertical direction of the vehicle body when the upper arm 41 is in the first right tilt position.

[0072] As described above, in the lean vehicle 1 according to this embodiment, the ECU 50A is disposed in the front portion, but in an area where it does not come into contact with the upper arm 41, the lower arm 42, and the tie rod 67 when the upper arm 41, the lower arm 42, and the tie rod 67 rotate. According to this embodiment, the dead space that is unique to the lean vehicle 1 can be effectively utilized as installation space for the ECU 50A. Therefore, the ECU 50A can be disposed compactly without increasing the size of the lean vehicle 1.

[0073] In this embodiment, at least a portion of the ECU 50A is disposed rearward of the rear end of the tie rod 67 in the vehicle front-rear direction and forward of the front end of the lower arm 42 in the vehicle front-rear direction (see FIG. 15). At least a portion of the ECU 50A is disposed in region R3 when viewed from the front in the vehicle front-rear direction (see FIG. 14). However, the above-described arrangement is an example, and the position of the ECU 50A is not limited to the above-described position. At least a portion of the ECU 50A may be disposed in region R3, rearward of the front end of the tie rod 67 in the vehicle front-rear direction and forward of the rear end of the tie rod 67 in the vehicle front-rear direction.

[0074] As shown in Fig. 15, the lean vehicle 1 includes a vehicle component 50B, and at least a portion of the vehicle component 50B may be located rearward of the front end of the lower arm 42 in the vehicle front-rear direction and forward of the front end of the upper arm 41 in the vehicle front-rear direction. At least a portion of the vehicle component 50B may be located in region R2 when viewed from the front in the vehicle front-rear direction (see Fig. 14). At least a portion of the vehicle component 50B may be located in region R2, rearward of the front end of the lower arm 42 in the vehicle front-rear direction and forward of the rear end of the lower arm 42 in the vehicle front-rear direction.

[0075] As shown in FIG. 15, the lean vehicle 1 is provided with a vehicle component 50C, and at least a portion of the vehicle component 50C may be positioned rearward of the rear end of the lower arm 42 in the vehicle fore-and-aft direction and forward of the front end of the upper arm 41 in the vehicle fore-and-aft direction.

[0076] 15, the lean vehicle 1 includes a vehicle component 50D, and at least a portion of the vehicle component 50D may be located rearward of the front end of the upper arm 41 in the vehicle front-rear direction and forward of the rear end of the upper arm 41 in the vehicle front-rear direction. At least a portion of the vehicle component 50D may be located in region R1 when viewed from the front in the vehicle front-rear direction (see FIG. 14).

[0077] As described above, the brake hose 36 is supported on the tie rod 67 via the bracket 35 (see FIG. 9). The brake hose 36 is rotatable together with the tie rod 67. When viewed from the front in the longitudinal direction of the vehicle body, at least a portion of the ECU 50A is disposed in an area to the right in the transverse direction of the vehicle body and above in the vertical direction of the vehicle body relative to the brake hose 36 when the tie rod 67 is in the third left tilt position (see FIG. 11), and to the left in the transverse direction of the vehicle body and above in the vertical direction of the vehicle body relative to the brake hose 36 when the tie rod 67 is in the third right tilt position (see FIG. 12). As a result, although the ECU 50A is disposed near the brake hose 36, contact between the ECU 50A and the brake hose 36 is suppressed.

[0078] The vehicle component 50 disposed in the front portion of the lean vehicle 1 is not limited to the ECU 50A. The vehicle component 50 may also be a communication device that performs wireless communication. The vehicle component 50 may also be, for example, a V2X antenna. The vehicle component 50 may also be a charging port to which a power supply cord (not shown) is detachably connected. The lean vehicle 1 may include a secondary battery (not shown) supported on the body frame 10, and the charging port may be connected to the secondary battery via an electric wire. The vehicle component 50 may also be a sensor for auto cruise control (ACC).

[0079] As described above, the left frame 60L and the right frame 60R of the support frame 60 are formed in a V shape when viewed from the front in the vehicle longitudinal direction (see FIG. 9). The ECU 50A is attached to the lower end of the left frame 60L and the lower end of the right frame 60R. By supporting the vehicle component 50 by the V-shaped frame (i.e., the left frame 60L and the right frame 60R) in this way, the vehicle component 50 can be suitably disposed in the V-shaped region R1, R2, or R3 (see FIG. 14). [Explanation of symbols]

[0080] 1 Lean vehicle 4 Power unit (driving power source) 10 Body frame 12 Head pipe 20L left front wheel 20R right front wheel 31 Steering shaft 35 Bracket 36 Brake hose 41 Upper Arm 42 Lower Arm 49 Connection mechanism 50 Vehicle Parts 50A ECU 52 Lean lock device 60 Support Frame 60L left frame 60R Right Frame 67 tie rod C1 1st axis C2 2nd axis C3 3rd axis

Claims

1. a body frame having a head pipe; a left front wheel disposed to the left of the head pipe; a right front wheel disposed to the right of the head pipe; a steering shaft rotatably supported by the head pipe; a connecting mechanism that connects the body frame and the left front wheel and the right front wheel so that the body frame, the left front wheel, and the right front wheel can tilt with respect to the ground, and that connects the steering shaft and the left front wheel and the right front wheel so that the left front wheel and the right front wheel can rotate left and right together with the steering shaft; a vehicle part; the connecting mechanism includes an upper arm, a lower arm, and a tie rod that are supported rotatably about a first axis, a second axis, and a third axis, respectively, that extend in a front-rear direction of the vehicle body relative to the body frame, and that extend leftward and rightward; the upper arm is disposed forward of the head pipe in the front-to-rear direction of the vehicle body, the lower arm is disposed forward of the upper arm in the vehicle front-rear direction and below the upper arm in the vehicle up-down direction, the tie rod is disposed forward of the lower arm in the vehicle front-rear direction and below the vehicle up-down direction, the upper arm is rotatable between a first left inclination position extending upward in the vehicle body up-down direction and to the left in the vehicle body left-right direction, and a first right inclination position extending upward in the vehicle body up-down direction and to the right in the vehicle body left-right direction, the lower arm is rotatable between a second left inclined position extending upward in the vehicle body vertical direction and to the left in the vehicle body left-right direction, and a second right inclined position extending upward in the vehicle body vertical direction and to the right in the vehicle body left-right direction, the tie rod is rotatable between a third left inclination position extending upward in the vehicle body up-down direction and to the left in the vehicle body left-right direction, and a third right inclination position extending upward in the vehicle body up-down direction and to the right in the vehicle body left-right direction, When a distance from the first axis to one of the left end and the right end of the upper arm in the vehicle body transverse direction that is farther from the first axis is defined as a first distance, At least a portion of the vehicle component is rearward of the front end of the tie rod in the vehicle front-rear direction; forward of the rear end of the upper arm in the vehicle body longitudinal direction; a left end of the upper arm in the left-right direction of the vehicle body when the upper arm is in the first left lean position, a left end of the lower arm in the left-right direction of the vehicle body when the lower arm is in the second left lean position, and a left end of the tie rod in the left-right direction of the vehicle body when the tie rod is in the third left lean position, a right end of the upper arm in the left-right direction of the vehicle body when the upper arm is in the first right tilt position, a right end of the lower arm in the left-right direction of the vehicle body when the lower arm is in the second right tilt position, and a right end of the tie rod in the left-right direction of the vehicle body when the tie rod is in the third right tilt position, Above the third axis in the vehicle body vertical direction, and a position above the first axis in the vehicle body vertical direction and below the position of the first distance in the vehicle body vertical direction, A lean vehicle, wherein the upper arm, the lower arm, and the tie rod are arranged in an area that does not come into contact with the upper arm, the lower arm, and the tie rod when the upper arm, the lower arm, and the tie rod rotate.

2. When the distance from the third axis to one of the left end and the right end of the tie rod in the vehicle body left-right direction that is farther from the third axis is defined as a third distance, At least a portion of the vehicle component is rearward of the front end of the tie rod in the vehicle front-rear direction; forward of the front end of the lower arm in the vehicle front-rear direction; 2. The lean vehicle according to claim 1, wherein, when viewed from the front in the fore-and-aft direction of the vehicle body, the at least one tie rod is disposed in an area within a circle whose center is the third axis and whose radius is the third distance, the at least one tie rod is disposed to the right in the left-right direction of the vehicle body and above in the up-down direction of the vehicle body relative to the tie rod when the tie rod is in the third left lean position, and to the left in the left-right direction of the vehicle body and above in the up-down direction of the vehicle body relative to the tie rod when the tie rod is in the third right lean position.

3. The lean vehicle according to claim 2 , wherein at least a portion of the vehicle component is disposed forward of a rear end of the tie rod in the vehicle front-rear direction.

4. 2. The lean vehicle according to claim 1, wherein at least a portion of the vehicle component is disposed rearward of a rear end of the tie rod in the vehicle front-rear direction and forward of a front end of the lower arm in the vehicle front-rear direction.

5. When a distance from the second axis to one of the left end and the right end of the lower arm in the vehicle body transverse direction that is farther from the second axis is defined as a second distance, At least a portion of the vehicle component is rearward of the front end of the lower arm in the vehicle body longitudinal direction; forward of the front end of the upper arm in the vehicle body longitudinal direction; 2. The lean vehicle according to claim 1, wherein, when viewed from the front in the fore-and-aft direction of the vehicle body, the lower arm is disposed in an area within a circle whose center is the second axis and whose radius is the second distance, to the right in the left-right direction of the vehicle body and above in the up-down direction of the vehicle body relative to the lower arm when the lower arm is in the second left lean position, and to the left in the left-right direction of the vehicle body and above in the up-down direction of the vehicle body relative to the lower arm when the lower arm is in the second right lean position.

6. The lean vehicle according to claim 5 , wherein at least a portion of the vehicle component is disposed forward of a rear end of the lower arm in the vehicle front-rear direction.

7. 2. The lean vehicle according to claim 1, wherein at least a portion of the vehicle component is disposed rearward of a rear end of the lower arm in the vehicle front-rear direction and forward of a front end of the upper arm in the vehicle front-rear direction.

8. At least a portion of the vehicle component is rearward of the front end of the upper arm in the vehicle front-rear direction; forward of the rear end of the upper arm in the vehicle body longitudinal direction; 2. The lean vehicle according to claim 1, wherein, when viewed from the front in the fore-and-aft direction of the vehicle body, the upper arm is disposed in an area within a circle whose center is the first axis and whose radius is the first distance, to the right in the left-right direction of the vehicle body and above in the up-down direction of the vehicle body relative to the upper arm when the upper arm is in the first left lean position, and to the left in the left-right direction of the vehicle body and above in the up-down direction of the vehicle body relative to the upper arm when the upper arm is in the first right lean position.

9. a brake hose supported on the tie rod via a bracket, At least a portion of the vehicle component is rearward of the front end of the tie rod in the vehicle front-rear direction; forward of the rear end of the lower arm in the vehicle body longitudinal direction; 2. The lean vehicle according to claim 1, wherein, when viewed from the front in the fore-and-aft direction of the vehicle body, the tie rod is disposed in an area to the right in the left-right direction of the vehicle body and above in the up-down direction of the vehicle body relative to the brake hose when the tie rod is in the third left tilt position, and to the left in the left-right direction of the vehicle body and above in the up-down direction of the vehicle body relative to the brake hose when the tie rod is in the third right tilt position.

10. a lean lock device that locks the rotation of the upper arm, the lower arm, or the tie rod; At least a part of the lean lock device is rearward of the front end of the lower arm in the vehicle body longitudinal direction; forward of the rear end of the upper arm in the vehicle body longitudinal direction; when viewed from the front in the fore-and-aft direction of the vehicle body, the upper arm is disposed to the right in the left-right direction of the vehicle body and above in the up-down direction of the vehicle body relative to the upper arm when the upper arm is in the first left tilt position, and to the left in the left-right direction of the vehicle body and above in the up-down direction of the vehicle body relative to the upper arm when the upper arm is in the first right tilt position, 2. The lean vehicle according to claim 1, wherein the vehicle component is disposed lower than the lean lock device in the vehicle body up-down direction.

11. The lean vehicle of claim 1 , wherein the vehicle component is an ECU.

12. a driving source for traveling supported by the body frame, The lean vehicle according to claim 11, wherein the ECU is a control device that controls the driving source for running.

13. The lean vehicle according to claim 11, wherein the ECU is a light control unit that controls headlights.

14. The lean vehicle of claim 1 , wherein the vehicle component is a communication device.

15. The lean vehicle according to claim 1 , wherein the vehicle component is a charging port to which a power cord is detachably connected.

16. a support frame that supports the lean lock device on the vehicle body frame, The lean vehicle of claim 10 , wherein the vehicle component is supported by the support frame.

17. the support frame includes a left frame disposed to the left of the lean lock device in the vehicle body left-right direction, extending downward in the vehicle body up-down direction and to the right in the vehicle body left-right direction, and a right frame disposed to the right of the lean lock device in the vehicle body left-right direction, extending downward in the vehicle body up-down direction and to the left in the vehicle body left-right direction, 17. The lean vehicle according to claim 16, wherein the vehicle component is attached to a lower end of the left frame and a lower end of the right frame.

Citation Information

Patent Citations

  • Lean vehicle

    JP2023051631A