Vehicle

Abstract

To provide a vehicle that is able to prevent a brake hose from being tightly bent.SOLUTION: A vehicle includes: a head pipe (24); a steering mechanism (90) supported by the head pipe (24) so as to be steerable, the steering mechanism (90) having a steering shaft (91), a suspension device (92) that is steered according to a movement of the vehicle, and a brake device (66B) mounted on a wheel (3); and a hydraulic control device (4) that supplies a hydraulic pressure to the brake device (66B) through a brake hose (112). This vehicle is provided with: a vehicle-body holding part (111) that holds the brake hose (112) on a vehicle body frame (5); and a steering holding part (113) that holds the brake hose (112) on the steering mechanism (90). The brake hose (112) for connecting the steering holding part (113) from the vehicle-body holding part (111) is disposed by passing above or below the steering shaft (91).SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a vehicle. [Background technology]

[0002] Conventionally, vehicles in which a brake hose is routed to a steering mechanism are known (see, for example, Patent Document 1). Patent Document 1 describes a motorcycle as a vehicle, in which a brake hose extending from an ABS modulator in front of a head pipe is held by a holding portion provided on a bottom bridge located below the ABS modulator, and routed to a brake device of a front wheel. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-14199 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the technology described in Patent Document 1, the brake hose is bent significantly when the steering angle increases, which necessitates a large bending space, reducing the freedom of layout of peripheral parts. The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide a vehicle that requires securing space for bending the brake hose and can improve the freedom of layout of peripheral parts. [Means for solving the problem]

[0005] The vehicle has a head pipe fixed to a body frame, a steering mechanism supported on the head pipe so as to be steerable, the steering mechanism having a steering shaft rotatably supported on the head pipe, a suspension device that supports wheels offset from the steering shaft and steers in accordance with vehicle movement, and a brake device equipped on the wheel, and a hydraulic control device fixed to the body frame and sends hydraulic pressure to the brake device through a brake hose, the vehicle has a body holding part that holds the brake hose to the body frame, and a steering holding part that holds the brake hose to the steering mechanism, and the brake hose connecting the body holding part to the steering holding part is routed above or below the steering shaft. Effect of the Invention

[0006] It is possible to provide a vehicle in which the bending space of the brake hose is reduced and the degree of freedom in layout of peripheral parts is improved. [Brief description of the drawings]

[0007] [Figure 1] 1 is a perspective view of a vehicle according to an embodiment. [Diagram 2] FIG. 2 is a perspective view of the vehicle with the cover member omitted. [Diagram 3] 2 is a perspective view of the rear fork and its periphery as viewed from the left rear. FIG. [Figure 4] FIG. [Diagram 5] 2 is a perspective view of the upper end portion of the steering shaft and its periphery as viewed from above and rear. FIG. [Figure 6] FIG. 2 is a top view of the periphery of the ABS modulator. [Figure 7] FIG. 2 is a right side view of a portion of the vehicle 1 showing a rear wheel brake piping system. [Figure 8] FIG. 2 is a top view of the upper end portion and surrounding area of ​​the steering shaft. [Figure 9] 5 is an explanatory diagram of the operation of the steering stopper portion and the abutment portion. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the description, directions such as front, rear, left, right, up and down are the same as directions relative to the vehicle body unless otherwise specified. In addition, the symbol FR in each drawing indicates the front of the vehicle body, the symbol UP indicates the upper side of the vehicle body, and the symbol LH indicates the left side of the vehicle body.

[0009] [Embodiment Mode] Fig. 1 is a perspective view of a vehicle 1 according to an embodiment of the present invention, and Fig. 2 is a perspective view of the vehicle 1 with a cover member 26 omitted. In the description of this embodiment, a pair of left and right configurations may be distinguished by adding "L" to the reference symbol indicating the left configuration and "R" to the reference symbol indicating the right configuration. Also, when there is no distinction between left and right, they may be indicated by only the reference symbol without "L" and "R".

[0010] As shown in FIG. 1 and FIG. 2, the vehicle 1 in this embodiment is configured as an autonomous vehicle equipped with a pair of left and right front wheels 2L, 2R at the front of the vehicle body and a single rear wheel 3 at the center of the left and right of the rear of the vehicle body, and is configured as an autonomous vehicle in which an occupant P can sit and move. That is, the vehicle 1 in this embodiment is not equipped with an operating member for the occupant P to perform turning operation or accelerator operation, but is equipped with a driving unit that manages autonomous driving. The driving unit of the vehicle 1 realizes autonomous driving by controlling turning operation and forward and backward movement of the vehicle body. The driving unit has, for example, a function of acquiring information on the surroundings and current position using a sensor, a camera, etc., and / or a function of acquiring information necessary for autonomous driving from outside the vehicle 1 using communication, etc., and is configured to realize autonomous driving of the vehicle 1 by autonomous or remote operation.

[0011] As shown in FIG. 2, the vehicle 1 has a body frame 5 that supports the front wheels 2L, 2R and the rear wheels 3. The vehicle body frame 5 has a front end frame 10 that constitutes the lower front end. The front end frame 10 has a pair of left and right extension portions 10A extending in the front-rear direction, and a substantially U-shaped bridge portion 10B that connects the front ends of the extension portions 10A. The bridge portion 10B extends upward when viewed from the side of the vehicle body. A cross member 10C extending left and right is connected between the extension portions 10A of the front end frame 10.

[0012] A pair of left and right seat frames 14 are connected to the rear of the front end frame 10. The seat frames 14 are formed in a trapezoidal shape when viewed from the side of the vehicle. A plurality of cross members (not shown) that connect the seat frames 14 to the left and right are supported between the left and right seat frames 14.

[0013] A central frame 16 is connected to the rear of the seat frame 14. The central frame 16 extends in the left-right and up-down directions. The central frame 16 includes an upper cross portion 16A and a lower cross portion 16B that extend in the left-right direction. The upper cross portion 16A and the lower cross portion 16B are spaced apart in the up-down direction. The lower cross portion 16B is longer in the vehicle width direction than the upper cross portion 16A. A pair of left and right suspension support portions 16C are provided on the upper cross portion 16A and the lower cross portion 16B, outboard of the seat frame 14 in the vehicle width direction.

[0014] A pair of left and right rear end frames 22 are connected to the rear of the central frame 16. The rear end frames 22 have a base portion 22A extending in the up-down direction along the central frame 16. A rear extension portion 22B extending rearward is connected to the upper end of the base portion 22A. An upward extension portion 22C is formed at the rear end of the rear extension portion 22B, which extends inward in the vehicle width direction and then upward. A top portion 22D extending forward is formed at the upper end of the upward extension portion 22C. The top portion 22D is connected to the left and right at its front end.

[0015] In the pair of left and right rear end frames 22, a battery stay 23 is provided on the base portion 22A and the rear extension portion 22B. In addition, a rear head pipe 24 extending in the vertical direction is provided on the upward extension portion 22C. The rear frame 18 is connected between the base portion 22A of the rear end frame 22 and the upper portion of the upward extension portion 22C. The rear frame 18 inclines backward as it advances upward. Side protector frames 20 are disposed on the left and right sides of the rear frame 18. The side protector frames 20 are connected to the lower portion of the rear frame 18 and the top portion 22D of the rear end frame 22.

[0016] A pair of left and right front frame members 12 are supported on the upper ends of the bridge portions 10B of the front end frame 10. A pair of left and right upper frames 25 extending in an arc shape in a side view of the vehicle are provided between the front frame members 12 and the top portions 22D of the rear end frame 22.

[0017] The left and right suspension support parts 16C of the central frame 16 support suspensions 50L and 50R. The suspensions 50L and 50R suspend the front wheels 2L and 2R. The suspensions 50L and 50R have swing arms 52L and 52R extending in the front-rear direction. The swing arms 52L and 52R are supported to be swingable on the lower cross part 16B of the central frame 16 via a pivot shaft 56a at the rear end. The front wheels 2L and 2R are supported on the front end parts of the swing arms 52L and 52R via an axle 2a. The front wheels 2L and 2R have an in-wheel motor (not shown) that can be driven forward and backward. Therefore, the axle 2a is also the drive shaft of the in-wheel motor. The front wheels 2L and 2R are located on the outer side of the seat frame 14 in the vehicle width direction. The front wheels 2L and 2R are provided with front wheel brake devices 66L and 66R. Suspensions 54L, 54R are connected between the swing arms 52L, 52R and the upper cross portion 16A of the central frame 16.

[0018] The pair of left and right front wheels 2L, 2R constitute a so-called differential two-wheel system. That is, the vehicle 1 can turn when a difference in rotational speed occurs between the left and right front wheels 2L, 2R. Therefore, for example, when the left and right front wheels 2L, 2R rotate in one direction, the vehicle 1 can move in one direction, the front and rear. Also, when the left and right front wheels 2L, 2R rotate in opposite directions, the vehicle 1 can turn.

[0019] A rear fork 46 is rotatably supported on the rear head pipe 24 of the rear end frame 22. The rear fork 46 is supported by a steering shaft so as to be steerable left and right. A rear wheel 3 is rotatably supported on the lower end of the rear fork 46 via an axle 3a. A rear wheel brake device 66B is provided on the rear wheel 3.

[0020] A seat 40 on which an occupant P sits is supported by the seat frame 14. A step 38 (see FIG. 1) on which the occupant P places his / her legs is provided at the front lower part of the seat 40. The step 38 is supported by the front end frame 10. A backrest 42 is supported at the rear upper part of the seat 40. The backrest 42 is supported by the rear frame 18. A seat belt 44 is provided on the backrest 42.

[0021] A battery 6 is mounted on the battery stay 23. The battery 6 is configured as a large-capacity battery that drives the in-wheel motor. In this embodiment, the battery 6 functions as an auxiliary battery that supplies power to the driving unit 8 under the seat 40 and the like. Note that instead of the configuration in which the battery 6 includes an auxiliary battery, the battery 6 may be used to drive the in-wheel motor, and the vehicle 1 may be configured to separately mount a battery for the auxiliary devices.

[0022] A pressurizing modulator 4 is disposed below the seat 40. The pressurizing modulator 4 is connected to the front wheel brake devices 66L, 66R via a front wheel brake piping system. The pressurizing modulator 4 is also connected to the rear wheel brake device 66B via a rear wheel brake piping system. The pressurizing modulator 4 controls the hydraulic pressure of the hydraulic fluid flowing through the front wheel brake devices 66L, 66R and the rear wheel brake device 66B. For example, the pressurizing modulator 4 may function as a braking force adjusting device that locks one of the front wheels 2L, 2R to enable the vehicle 1 to turn. The pressurizing modulator 4 includes a pump that is driven by a motor to adjust the hydraulic pressure, a hydraulic circuit section connected to the pump, a valve that switches the hydraulic circuit section, and an electronic control section that controls the motor.

[0023] A PCU (Power Control Unit) 7 is supported in front of the pressure modulator 4. The PCU 7 is supported by a cross member of the seat frame 14. The PCU 7 includes an inverter and the like, and converts, for example, DC power supplied from a battery into AC power and supplies the converted AC power to the in-wheel motor. Furthermore, when the in-wheel motor is in regeneration mode, the PCU 7 converts the AC power generated by the in-wheel motor into DC power and charges the battery 6.

[0024] An operating unit 8 is mounted near the PCU 7. The operating unit 8 includes an ECU (Electronic Control Unit) not shown. The ECU may not be a single ECU, but may include multiple ECUs. The ECU includes a processor, a storage device such as a semiconductor memory, and an interface with an external device. The storage device stores programs executed by the processor, data used by the processor for processing, and the like.

[0025] The driving unit 8 executes control related to the automatic driving of the vehicle 1. In the automatic driving, the driving unit 8 drives the pair of front wheels 2L, 2R and brakes the front wheels 2L, 2R and the rear wheel 3. The driving unit 8 activates the pressure modulator 4.

[0026] A cover member 26 (see FIG. 1) is supported on the body frame 5. As shown in FIG. 1, the cover member 26 includes a front cover 28 that covers the front end frame 10 and the front frame 12 from the front, an under-seat cover 29 that covers the seat frame 14 from the front, a body cover 30 that covers the seat frame 14, the central frame 16 and the rear end frame 22 from the left and right sides and rear, a rear top cover 31 that covers the rear end frame 22 from above, and a roof cover 32 that covers the upper part of the upper frame 25.

[0027] A front screen 33 made of a material that allows the occupant P to see ahead is provided between the front cover 28 and the roof cover 32. The front screen 33 is supported by a pair of upper frames 25 on the left and right. A plurality of headlights 34 and turn signals 35 are supported on the front cover 28.

[0028] Fig. 3 is a perspective view of the periphery of the rear fork 46 as viewed from the left rear. Fig. 4 is a rear view of the rear fork 46. The rear head pipe (head pipe) 24 is supported by a pair of left and right rear end frames 22. An outer plate 81 extending in the vertical direction is fixed to each upward extending portion 22C of the rear end frames 22. The outer plate 81 is in the form of a plate having a thickness in the left-right direction. The outer plate 81 is formed with lightening holes 81a spaced apart in the vertical direction. The lightening holes 81a may be used to fasten other members.

[0029] A plate-shaped pipe fixing portion 82 extending in the left-right direction is supported on the upper end of the outer plate 81. The pipe fixing portion 82 is a plate-shaped portion that is substantially U-shaped when viewed from behind. In detail, the pipe fixing portion 82 has a plate-shaped upper surface portion 82A extending in the left-right direction and a pair of left and right side surface portions 82B extending downward from both left and right ends of the upper surface portion 82A (see the figure). The side surface portions 82B of the pipe fixing portion 82 are fixed to the upper end of the outer plate 81. The pipe fixing portion 82 is fixed to the upper end of the outer plate 81 while straddling the upper ends of the left and right outer plates 81.

[0030] A cylindrical holder 83 that protrudes inward in the vehicle width direction is fixed to the inner surface of the outer plate 81. A plurality of holders 83 are arranged at intervals in the vertical direction. An inner plate (vehicle body component) 84 that extends in the vertical direction is supported at the inner end of the holder 83. The inner plate 84 is arranged opposite the outer plate 81. A pipe support plate 85 that is fixed to overlap the inner plate 84 and protrudes rearward is supported on the inner surface of the lower part of the inner plate 84.

[0031] A cylindrical rear head pipe 24 is supported between the pair of left and right pipe support plates 85. The rear head pipe 24 is supported by the pair of left and right pipe support plates 85 while being sandwiched between them. The rear head pipe 24 is supported so as to extend in the vertical direction. Note that the rear head pipe 24 extending in the vertical direction means that the rear head pipe 24 extends in the vertical direction when the vehicle 1 is placed on a horizontal plane, is stationary, and is in a stable state.

[0032] The pipe support plate 85 supports an upper connection member 86 that is substantially U-shaped in rear view. A sensor support bracket 87 in the form of a bent plate is fixed to the upper end of the upper connection member 86. A flat sensor fixing portion 87A extending rearward is formed in the sensor support bracket 87. The sensor fixing portion 87A extends to a position overlapping the rear head pipe 24 when viewed from above. A sensor mounting hole (not shown) penetrating in the vertical direction is formed in the sensor fixing portion 87A. A steering angle sensor 100 is mounted in the sensor mounting hole. The steering angle sensor 100 is fixed to the sensor fixing portion 87A by a fixing member 101 (see FIG. 8). A connector portion 100A of the steering angle sensor 100 faces forward. A sensor harness (harness) 102 extending forward is connected to the connector portion 100A. The sensor harness 102 is routed forward and on the inner side in the vehicle width direction of the pair of left and right inner plates 84. When the sensor harness 102 is routed to the front vehicle body frame 5 , it is connected to the driving unit 8 .

[0033] A rear fork 46 is supported on the rear head pipe 24 so as to be freely steerable. The rear fork 46 has a steering shaft 91 and a fork body (suspension device) 92 connected to the lower end of the steering shaft 91. The steering shaft 91 is supported on the rear head pipe 24 so as to be rotatable. The steering shaft 91 protrudes upward from the rear head pipe 24. The steering shaft 91 protrudes downward from the rear head pipe 24.

[0034] A lower bearing member 91A is supported at the lower end of the steering shaft 91. The lower bearing member 91A fits into the lower end of the rear head pipe 24. An upper bearing member 91B is supported at the top of the steering shaft 91. The upper bearing member 91B fits into the upper end of the rear head pipe 24. The upper bearing member 91B and the lower bearing member 91A are bearing members each having an outer race, an inner race, and balls, and support the steering shaft 91 rotatably relative to the rear head pipe 24. An adjustment nut 91C is supported above the upper bearing member 91B. The adjustment nut 91C is fastened to the upper end of the steering shaft 91. The bearing functions of the upper bearing member 91B and the lower bearing member 91A are adjusted by adjusting the amount of fastening of the adjustment nut 91C.

[0035] A fork body 92 at the lower end of the steering shaft 91 has a bridge member 93 extending in the left-right direction, and a pair of left and right fork members 94 provided at both ends of the bridge member 93. A rear wheel (wheel) 3 is supported on the fork members 94. The fork body 92 is offset downward from the steering shaft 91 and suspends the rear wheel 3. The fork body 92 is steered with the steering shaft 91 as a rotation axis in accordance with the movement of the vehicle 1. In this embodiment, the fork body 92 is configured to be steerable approximately 90 degrees in the left-right direction as the vehicle 1 turns around the front wheels 2L, 2R.

[0036] In this embodiment, the bridge member 93 of the fork body 92 is configured symmetrically. The lower end of the steering shaft 91 is connected to the center of the bridge member 93 in the vehicle width direction. In addition, the fork members 94 at both ends of the bridge member 93 are telescopic shock absorbers with built-in springs and dampers. The fork member 94 has an upper tube 95 that forms an upper part, a lower tube 96 that forms a lower part, and an axle support member 97 fixed to the lower end of the lower tube 96. In this embodiment, the upper tube 95 is slidably inserted into the lower tube 96, and configured as an upright fork member 94.

[0037] An axle 3a is inserted through the left and right axle support members 97. The axle 3a is supported by the axle support members 97 while being stretched between them. A rear wheel 3 is rotatably supported by the axle 3a. The rear wheel 3 is disposed in the center in the vehicle width direction. A caliper bracket 97A is formed integrally with the left axle support member 97.

[0038] As shown in Fig. 4, the rear wheel 3 is provided with a rear wheel braking device (brake device) 66B that brakes the rear wheel 3. In this embodiment, the rear wheel braking device 66B is configured with a disc brake. As shown in Fig. 4, the rear wheel braking device 66B includes a brake disc 67 attached to the wheel that constitutes the rear wheel 3, and a brake caliper 68 that can clamp and brake the brake disc 67. The brake caliper 68 is fastened to a caliper bracket 97A with a bolt.

[0039] A pulser ring portion (not shown) is formed on the inner periphery of the brake disc 67. The pulser ring portion is detected by a wheel speed sensor.

[0040] A pair of left and right stay fixing portions 93A are formed at the rear of the bridge member 93. The stay fixing portions 93A are formed in a cylindrical shape extending in the vertical direction. A shaft stay (stay) 99 extending in the vertical direction is fixed to the stay fixing portions 93A. The shaft stay 99 has a plate-shaped stay main body portion 99A extending in the vertical direction, a stay upper portion 99B bending forward from the upper end of the stay main body portion 99A, a cylindrical shaft holder portion 99C (see FIG. 5) provided on the lower surface of the stay upper portion 99B, and a stay fixing portion 99D formed at the lower end of the stay main body portion 99A.

[0041] FIG. 5 is a perspective view of the upper end portion and its periphery of the steering shaft 91 as viewed from above and rearward. An opening 99B1 is formed in the stay upper portion 99B, penetrating in the vertical direction. The opening 99B1 is a circular hole having its center on the left-right center of the stay upper portion 99B. A cylindrical shaft holder portion 99C is inserted and fixed in the opening 99B1. The shaft holder portion 99C is fixed to the stay upper portion 99B with its upper portion protruding upward from the stay upper portion 99B and its lower portion protruding downward from the stay upper portion 99B.

[0042] The upper end of the steering shaft 91 is inserted into the lower part of the shaft holder part 99C, which is located below the stay upper part 99B. A through hole (not shown) penetrating the front side surface is formed in the lower part of the shaft holder part 99C. A bolt is inserted into this through hole and fastened to the upper end of the steering shaft 91. In this way, the steering shaft 91 is fixed to the shaft holder part 99C. Only the rear head pipe 24 is interposed between the stay main body part 99A of the shaft stay 99 and the steering shaft 91. The shaft stay 99 corresponds to an example of a steering mechanism component adjacent to the steering shaft 91 on the outer circumferential side of the rear head pipe 24.

[0043] Here, a rod-shaped detector 91D extending upward along the rotation center O1 (see FIG. 8) of the steering shaft 91 is provided at the upper end of the shaft holder portion 99C. Therefore, the detector 91D is located above the stay upper portion 99B. The detector 91D is inserted into a detection portion of the steering angle sensor 100. When the fork body 92 is steered and the steering shaft 91 rotates, the detector 91D rotates integrally therewith. Therefore, the steering angle sensor 100 detects the detector 91D to detect the steering angle. The steering angle detected by the steering angle sensor 100 is input to the driving unit 8 via a sensor harness 102.

[0044] The steering mechanism 90 of this embodiment (see FIG. 3) is made up of the steering shaft 91, the fork body 92, the shaft stay 99, the axle 3a, the rear wheel 3, the rear wheel braking device 66B, etc. In other words, the steering shaft 91, the fork body 92, the shaft stay 99, the axle 3a, the rear wheel 3, the rear wheel braking device 66B, etc. are parts that make up the steering mechanism 90.

[0045] Fig. 6 is a top view of the periphery of the pressurizing modulator 4. Fig. 7 is a right side view of a portion of the vehicle 1 showing the rear wheel brake piping system 79. The rear wheel braking device 66B is connected to a pressure modulator (hydraulic control device) 4 via a rear wheel brake piping system 79. The rear wheel braking device 66B is operated by the pressure modulator 4. The pressure modulator 4 has a rectangular parallelepiped shape in appearance. The pressure modulator 4 is supported by a bracket (not shown) below the seat 40. The pressure modulator 4 is disposed on the right side (the other side in the vehicle width direction) with respect to the center of the vehicle width. Input brake pipes 71, 72 are connected to the upper surface of the pressure modulator 4. The input brake pipes 71, 72 extend forward and left and are connected to master cylinders 73, 74, respectively.

[0046] A front wheel output brake pipe 75 and a rear wheel output brake pipe 76 are connected to the front surface of the pressure modulator 4. Left and right front wheel brake piping systems 78L, 78R are connected to the front wheel output brake pipe 75 via a branch portion 77. A rear wheel brake piping system 79 (see FIG. 8) is connected to the rear wheel output brake pipe 76.

[0047] The rear wheel brake piping system 79 has a metal pipe 110 extending from the rear wheel output brake pipe 76. The metal pipe 110 extends rearward from the seat frame 14, over the central frame 16, to the rear end frame 22. The metal pipe 110 is arranged on the right side (the other side in the vehicle width direction) of the rear end frame 22, and arranged along the rear end frame 22. The metal pipe 110 extends upward along the base portion 22A of the right rear end frame 22, and then extends rearward along the rear extension portion 22B. The metal pipe 110 then extends upward along the upward extension portion 22C, and is connected to a joint portion (vehicle body holding portion) 111 provided between the left and right rear end frames 22. The metal pipe 110 is fixed to the rear end frame 22 of the vehicle body frame 5.

[0048] FIG. 8 is a top view of the upper end portion and the vicinity thereof of the steering shaft 91. As shown in FIG. The joint portion 111 is fixed to the upper surface portion 82A of the piping fixing portion 82. The joint portion 111 has a fixing portion 111A, a tubular input portion 111B fixed to the fixing portion 111A, and a tubular output portion 111C fixed to the fixing portion 111A. The input portion 111B and the output portion 111C communicate with each other. The joint portion 111 is fixed to the rear end portion of the upper surface portion 82A. The input portion 111B faces rightward, and the output portion 111C faces rearward. The joint portion 111 is disposed on the center line L0 in the vehicle width direction of the piping fixing portion 82. At this time, the output portion 111C is disposed on the center line L0 in the vehicle width direction. The output portion 111C overlaps with the steering shaft 91 in a top view. The rear end of the output portion 111C is located forward of the rotation center O1 of the steering shaft 91.

[0049] A flexible brake hose 112 is connected to the output portion 111C. In other words, the joint portion 111 holds the brake hose 112 on the body frame 5. The brake hose 112 is able to bend rearward of the rear end of the output portion 111C. The brake hose 112 is routed above the steering shaft 91. That is, the brake hose 112 extends toward the shaft stay 99 so as to pass directly above the rotation center O1 of the steering shaft 91. In a reference position where the steering mechanism 90 is not steering, the brake hose 112 and the rotation center O1 overlap in a top view.

[0050] The brake hose 112 is held by an upper clamp member (steering holding portion) 113 on the upper rear surface of the stay main body portion 99A. The brake hose 112 is also held by a lower clamp member 114 on the lower rear surface of the stay main body portion 99A. Here, the upper clamp member 113 is positioned so that its height overlaps with that of the stay upper portion 99B in the vertical direction. The upper clamp member 113 and the lower clamp member 114 are also positioned on the center line L0 in the vehicle width direction. The brake hose 112 extends linearly in the vertical direction along the rear surface of the stay main body portion 99A of the shaft stay 99. Here, the brake hose 112 is not held by any other holding portion between the joint portion 111 and the upper clamp member 113. Therefore, the brake hose 112 is movable and bendable between the joint portion 111 and the upper clamp member 113.

[0051] Below the lower clamp member 114, the brake hose 112 is clamped by a clamp member 115 supported by the bridge member 93. Below the lower clamp member 114, the brake hose 112 extends to the left as it advances downward. Further below that, the brake hose 112 is clamped by a clamp member 116. The clamp member 116 is supported by the lower tube 96 of the left fork member 94. The brake hose 112 is then connected to the brake caliper 68.

[0052] Upper clamp member 113 and lower clamp member 114 fixed to shaft stay 99, clamp member 115 fixed to bridge member 93, and clamp member 116 fixed to fork member 94 are all provided on the rear side of the vehicle body. This allows brake hose 112 to be routed in a straight line, making it easier to shorten brake hose 112. The metal pipe 110, the joint portion 111, and the brake hose 112 constitute the rear wheel brake piping system 79 of the present embodiment.

[0053] A sensor cable 121 (see FIG. 5) extends from the vehicle body frame 5. The sensor cable 121 is routed rearward from below the pipe fixing part 82, and then routed along the brake hose 112 to below the clamp member 116. Below the clamp member 116, the sensor cable 121 is connected to a wheel speed sensor. The sensor cable 121 is connected to the driving unit 8.

[0054] FIG. 9 is a diagram illustrating the action of the steering stoppers 99E, 99F and the abutment portion 84A. As shown in Fig. 5, an abutment portion 84A is formed at the front end of the upper portion of the inner plate 84. The abutment portion 84A is cut out so as to be recessed forward compared to the lower portion. The abutment portion 84A is formed above the pipe support plate 85. The abutment portion 84A overlaps with the upper clamp member 113 in height in the up-down direction.

[0055] Further, a pair of left and right steering stopper portions (contact portions) 99E, 99F are formed on the stay upper portion 99B of the shaft stay 99. The steering stopper portions 99E, 99F overlap in height with the upper end of the upper clamp member 113 in the up-down direction. The left steering stopper portion 99E abuts against the abutment portion 84A of the left inner plate 84 when the rear fork 46 is steered excessively in the clockwise direction as viewed from above (see the two-dot chain line in FIG. 9). This prevents the rear fork 46 from being steered excessively in the counterclockwise direction. Further, the right steering stopper portion 99F abuts against the abutment portion 84A of the right inner plate 84 when the rear fork 46 is steered excessively in the counterclockwise direction as viewed from above (see the dashed line in FIG. 9). This prevents the rear fork 46 from being steered excessively in the counterclockwise direction. Therefore, the shaft stay 99 does not enter the inside of the inner plate 84 in the vehicle width direction, and does not interfere with the sensor harness 102.

[0056] When the steering mechanism 90 is turned, the upper clamp member 113 describes an arc-shaped trajectory centered on the steering shaft 91. That is, as shown in FIG. 8, the upper clamp member 113 moves while describing a rotation circle C1 about the rotation center O1 of the steering shaft 91. That is, the outer end of the upper clamp member 113 describes the rotation circle C1 about the rotation center O1 of the steering shaft 91. In this embodiment, the brake hose 112 between the joint portion 111 and the upper clamp member 113 is held at a length that allows it to move within the rotation circle C1. In this embodiment, the length that allows it to move within the rotation circle C1 means a length at which the brake hose 112 moves so as not to protrude from the rotation circle C1. In addition, the length at which the brake hose 112 moves within the rotation circle C1 may include a length at which the brake hose 112 moves so as not to protrude from the rotation circle C1 by more than half the diameter of the brake hose 112. This makes it possible to suppress bending of the brake hose 112 while shortening the length of the brake hose 112.

[0057] As described above, according to this embodiment to which the present invention is applied, in vehicle 1 having rear head pipe 24 fixed to body frame 5, steering mechanism 90 supported on rear head pipe 24 so as to be steerable, said steering mechanism 90 having steering shaft 91 rotatably supported on rear head pipe 24, fork body 92 offset from steering shaft 91 to support rear wheel 3 and steered in accordance with the movement of vehicle 1, and rear wheel braking device 66B equipped on rear wheel 3, and pressure modulator 4 fixed to body frame 5 and sending hydraulic pressure to rear wheel braking device 66B through brake hose 112, vehicle 1 has joint portion 111 that holds brake hose 112 to body frame 5, and upper clamp member 113 that holds brake hose 112 to steering mechanism 90, and brake hose 112 connecting joint portion 111 to upper clamp member 113 is routed above steering shaft 91. According to this configuration, the brake hose 112 is routed to pass above the steering shaft 91, and the brake hose 112 between the joint portion 111 and the upper clamp member 113 partially overlaps the steering shaft 91 in a top view, thereby reducing the bending space of the brake hose and improving the layout freedom of the peripheral parts. If the brake hose 112 were to pass between the top and bottom of the steering shaft 91 in the front-to-rear direction, the brake hose 112 would bend to detour around the steering shaft 91, which would make the brake hose longer and increase the bending space.

[0058] In this embodiment, the joint portion 111 and the upper clamp member 113 are disposed on a center line L0 of the steering mechanism 90 in the vehicle width direction. According to this configuration, the positions of the joint part 111 and the upper clamp member 113 are aligned in the vehicle width direction, so that the brake hose 112 can be routed linearly between the joint part 111 and the upper clamp member 113, and while shortening the brake hose 112, the degree to which the brake hose 112 bends during steering can be made symmetrical on the left and right. This makes it easier to make the torque required for steering the same on the left and right.

[0059] In the present embodiment, the movable range of the brake hose 112 connected from the joint portion 111 to the upper clamp member 113 falls within the rotation circle C1 of the upper clamp member 113 caused by the steering of the steering mechanism 90. According to this configuration, the movable space of the brake hose 112 and the bending space are contained within the range of steering of the upper clamp member 113. Therefore, the bending space of the brake hose 112 can be reduced, and the degree of freedom in layout of the peripheral parts can be improved.

[0060] In this embodiment, the joint portion 111 overlaps with the steering shaft 91 in a top view. According to this configuration, the joint part 111 is disposed at a position close to the rotation center O1 of the steering shaft 91, and therefore it is possible to prevent the joint part 111 and the upper clamp member 113 from coming too close to each other, causing the brake hose 112 to bend excessively and protrude. Also, because the joint part 111 is disposed at a position close to the rotation center O1 of the steering shaft 91, it is possible to prevent the joint part 111 and the upper clamp member 113 from coming too far apart, and it is possible to prevent the brake hose 112 from becoming too long. Therefore, it is possible to shorten the brake hose 112 while further preventing the brake hose 112 from exceeding the rotation circle C1 of the upper clamp member 113.

[0061] In this embodiment, the upper clamp member 113 is provided on a steering mechanism component adjacent to the steering shaft 91 on the outer circumferential side of the rear head pipe 24 , and rotates together with the steering shaft 91 . According to this configuration, the upper clamp member 113 is steered near the steering shaft 91, so that the movable space of the brake hose 112 can be reduced, and the degree of freedom in the layout of the peripheral parts can be improved.

[0062] In addition, in this embodiment, the steering mechanism components are shaft stays 99 that extend between the top and bottom of steering shaft 91 and have only the rear head pipe 24 between them and the steering shaft 91, and the upper clamp member 113 is provided on the shaft stay 99. According to this configuration, the brake hose 112 is attached to the shaft stay 99 that is steered at a position close to the steering shaft 91, so that the moving space of the brake hose 112 can be reduced, and the freedom of layout of the surrounding parts can be improved.

[0063] In this embodiment, when the shaft stay 99 comes into contact with the inner plate 84, the steering mechanism 90 does not steer any further. According to this configuration, the shaft stay 99 functions in part as a stopper during steering, so that the number of parts can be reduced compared to when a separate stopper is provided. In other words, when a steering mechanism component such as the shaft stay 99 comes into contact with a vehicle body component such as the inner plate 84, if the steering mechanism 90 does not steer any further, even if the contact between the steering mechanism component and the vehicle body component is originally intended for a function other than as a stopper, the contact functions as a stopper as part of the function of the contact between the steering mechanism component and the vehicle body component. Therefore, the number of parts can be reduced compared to when a separate stopper is provided. This leads to cost reduction.

[0064] In the present embodiment, the upper clamp member 113 is disposed so as to overlap or above, in the vehicle body up-down direction, the steering stopper portions 99E, 99F where the shaft stay 99 and the inner plate 84 come into contact. According to this configuration, it is possible to prevent the brake hose 112 extending from the upper clamp member 113 to the joint portion 111 from being pinched between the shaft stay 99 and the inner plate 84 during steering.

[0065] In addition, this embodiment is provided with a steering angle sensor 100 that detects the rotation angle of the steering shaft 91. The steering angle sensor 100 is provided between the upper end of the rear head pipe 24 and the brake hose 112, and a sensor harness 102 connected to the steering angle sensor 100 is arranged to extend outside the movable range of the brake hose 112. According to this configuration, the sensor harness 102 of the steering angle sensor 100 is routed outside the movable range of the brake hose 112, so that interference between the brake hose 112 and the sensor harness 102 can be suppressed.

[0066] [Other embodiments] The above-described embodiment merely shows one aspect of the present invention, and any modification and application can be made without departing from the spirit and scope of the present invention.

[0067] In the above embodiment, the three-wheeled vehicle 1 has been exemplified as the vehicle, but the vehicle may have two wheels or four wheels.

[0068] In the above embodiment, a configuration in which automatic braking is performed by the driving unit 8 has been described, but this is not limited to this. For example, a manual brake lever (not shown) may be provided on the side of the seat 40 to enable manual braking by the occupant P.

[0069] In the above embodiment, the rear wheel 3 is exemplified as a wheel, but the wheel may be a front wheel. Therefore, in the above embodiment, the configuration of the brake hose 112 extending from the body frame 5 to the rear fork 46 is exemplified, but the configuration of this embodiment may be applied to a brake hose extending to a front fork that supports a front wheel.

[0070] In the above embodiment, the brake hose 112 connecting the joint portion 111 to the upper clamp member 113 is described as being routed above the steering shaft 91, but the brake hose 112 may be routed below the steering shaft 91. That is, for example, a vehicle body holding portion may be provided from a turning holding portion, and the brake hose 112 connecting the vehicle body holding portion to the turning holding portion may be routed below the steering shaft 91 so that the brake hose 112 is routed below the bridge member 93.

[0071] In the above embodiment, the fork member 94 of the steering mechanism 90 is a telescopic shock absorber, but the fork member 94 does not have to be a telescopic shock absorber and may be rod-shaped, so to speak. In other words, the upper tube 95 and the lower tube 96 may be integrated. The fork member 94 may of course be of an inverted type.

[0072] In the above embodiment, a configuration has been described in which the upper clamp member 113 overlaps with the steering stopper portions 99E, 99F in height in the up-down direction, but the steering stopper may be provided below the upper clamp member 113. In other words, the upper clamp member 113 may be configured to be above the steering stopper.

[0073] In the above embodiment, shaft stay 99 has been exemplified as a steering mechanism component, but the steering mechanism component to which upper clamp member 113 is provided is not limited to shaft stay 99, and any component may be used as the steering mechanism component to which upper clamp member 113 is provided as long as it constitutes steering mechanism 90. In other words, a component supported by bridge member 93 or fork member 94 may be used as the steering mechanism component. Also, a component supported by steering shaft 91 may be used as the steering mechanism component.

[0074] In the above embodiment, the inner plate 84 is exemplified as the vehicle body component with which the steering stopper portions 99E, 99F come into contact, but the vehicle body component may also be various parts that are fixed to and supported by the vehicle body frame 5, such as the outer plate 81 or the holder 83.

[0075] [Configuration supported by the above embodiment] The above embodiment supports the following configurations.

[0076] (Configuration 1) A vehicle having a head pipe fixed to a body frame, a steering mechanism supported on the head pipe so as to be steerable, the steering mechanism having a steering shaft rotatably supported on the head pipe, a suspension device supporting wheels offset from the steering shaft and steering in accordance with the movement of the vehicle, and a brake device equipped on the wheel, and a hydraulic control device fixed to the body frame and sending hydraulic pressure to the brake device through a brake hose, the vehicle having a vehicle body holding portion that holds the brake hose to the body frame, and a steering holding portion that holds the brake hose to the steering mechanism, the vehicle having a vehicle body holding portion that holds the brake hose to the steering mechanism, and the brake hose connecting the vehicle body holding portion to the steering holding portion being routed above or below the steering shaft. According to this configuration, the brake hose is routed so as to pass above or below the steering shaft, so that the brake hose between the vehicle body holding portion and the steering holding portion partially overlaps the steering shaft when viewed from above, thereby reducing the bending space of the brake hose and improving the freedom of layout of surrounding components.

[0077] (Configuration 2) The vehicle according to configuration 1, wherein the vehicle body holding portion and the steering holding portion are disposed on a vehicle width direction center line of the steering mechanism. With this configuration, the vehicle body holding part and the steering holding part are aligned in the vehicle width direction, so that the brake hose can be routed linearly between the vehicle body holding part and the steering holding part, shortening the brake hose while making the brake hose bend symmetrically on the left and right when steering. This makes it easier to make the torque required for steering the same on the left and right.

[0078] (Configuration 3) The vehicle described in configuration 1 or 2, characterized in that the movable range of the brake hose connecting from the vehicle body holding part to the steering holding part falls within a rotation circle of the steering holding part associated with steering of the steering mechanism. According to this configuration, the movable space of the brake hose is contained within the range of steering of the steering holder, and the bending space is contained within the range of steering. Therefore, the bending space of the brake hose can be reduced, and the layout freedom of the peripheral parts can be improved.

[0079] (Configuration 4) The vehicle according to any one of configurations 1 to 3, wherein the vehicle body holding portion overlaps with the steering shaft in a top view. According to this configuration, since the vehicle body holding portion is disposed in a position close to the rotation center of the steering shaft, it is possible to prevent the vehicle body holding portion and the turning holding portion from coming too close to each other, which causes the brake hose to bend excessively and protrude. Also, since the vehicle body holding portion is disposed in a position close to the rotation center of the steering shaft, it is possible to prevent the vehicle body holding portion and the turning holding portion from coming too far apart, which prevents the brake hose from becoming too long. Therefore, it is possible to shorten the brake hose while further preventing the brake hose from exceeding the rotation circle of the turning holding portion.

[0080] (Configuration 5) The vehicle according to any one of configurations 1 to 4, wherein the steering retaining portion is provided on a steering mechanism component adjacent to the steering shaft on the outer circumferential side of the head pipe and rotates together with the steering shaft. According to this configuration, the steering holder can be turned near the steering shaft, thereby reducing the space required for the brake hose to move, thereby improving the freedom of layout of peripheral components.

[0081] (Configuration 6) The vehicle described in configuration 5, wherein the steering mechanism component is a stay extending between the top and bottom of the steering shaft, with only the head pipe between it and the steering shaft, and the steering retention portion is provided on the stay. According to this configuration, by attaching the brake hose to the stay that is steered at a position close to the steering shaft, the space required for the brake hose to move can be reduced, thereby improving the freedom of layout of surrounding parts.

[0082] (Configuration 7) The vehicle according to configuration 6, wherein when the stay comes into contact with a vehicle body component, the steering mechanism does not steer any further. According to this configuration, the stay functions in part as a stopper during steering, so that the number of parts can be reduced compared to a case in which a separate stopper is provided, which can lead to cost reduction.

[0083] (Configuration 8) The vehicle according to configuration 7, wherein the steering retaining portion is arranged to overlap or above a contact portion where the stay and the vehicle body component are in contact in the vertical direction of the vehicle body. According to this configuration, the brake hose extending from the steering holding portion to the vehicle body holding portion can be prevented from being pinched between the stay and a vehicle body component when steering.

[0084] (Configuration 9) A vehicle as described in any one of configurations 1 to 8, further comprising a steering angle sensor for detecting a rotation angle of the steering shaft, the steering angle sensor being provided between an upper end of the head pipe and the brake hose, and a harness connected to the steering angle sensor being routed and extending outside the movable range of the brake hose. According to this configuration, the harness for the steering angle sensor is routed outside the movable range of the brake hose, so interference between the brake hose and the harness can be suppressed. [Explanation of symbols]

[0085] 1 vehicle 3 Rear wheel (wheel) 4 ABS modulator (hydraulic control device) 5 Body frame 24 Rear head pipe (head pipe) 66B Rear wheel brake device (Brake device) 84 Inner plate (body component) 90 Steering mechanism 91 Steering shaft 92 Fork body (suspension system) 99 Shaft stay (stay) 99E Steering stopper part (contact part) 99F Steering stopper part (contact part) 100 Steering Angle Sensor 102 Sensor harness (harness) 111 Joint part (body holding part) 112 Brake hose 113 Upper clamp member (steering holding portion) C1 Rotation circle L0 Vehicle width center line

Claims

1. A vehicle having a head pipe (24) fixed to a body frame (5), a steering mechanism (90) supported on the head pipe (24) so ​​as to be able to turn, the steering mechanism (90) having a steering shaft (91) rotatably supported on the head pipe (24), a suspension device (92) supporting wheels (3) offset from the steering shaft (91) and steering in accordance with the movement of the vehicle, and a brake device (66B) equipped on the wheel (3), and a hydraulic control device (4) fixed to the body frame (5) and sending hydraulic pressure to the brake device (66B) through a brake hose (112), a vehicle body holding portion (111) that holds the brake hose (112) on the vehicle body frame (5), and a steering holding portion (113) that holds the brake hose (112) on the steering mechanism (90), The brake hose (112) connecting the vehicle body holding portion (111) to the steering holding portion (113) is routed above or below the steering shaft (91). A vehicle characterized by:

2. The vehicle body holding portion (111) and the steering holding portion (113) are disposed on a vehicle width direction center line (L0) of the steering mechanism (90).

2. The vehicle according to claim 1 .

3. The movable range of the brake hose (112) connected from the vehicle body holder (111) to the steering holder (113) is within a rotation circle (C1) of the steering holder (113) caused by the steering of the steering mechanism (90).

3. A vehicle as claimed in claim 1 or 2.

4. The vehicle body holding portion (111) overlaps with the steering shaft (91) in a top view.

3. A vehicle as claimed in claim 1 or 2.

5. The steering holding portion (113) is provided on a steering mechanism component adjacent to the steering shaft (91) on the outer circumferential side of the head pipe (24), and rotates together with the steering shaft (91).

3. A vehicle as claimed in claim 1 or 2.

6. The steering mechanism component is a stay (99) that extends between the top and bottom of the steering shaft (91) and has only the head pipe (24) between it and the steering shaft (91), The steering holding portion (113) is provided on the stay (99).

6. The vehicle according to claim 5.

7. When the stay (99) comes into contact with the vehicle body component (84), the steering mechanism (90) does not steer any further.

7. The vehicle according to claim 6.

8. The steering support portion (113) is disposed above or overlaps in the vertical direction of the vehicle body with a contact portion (99E, 99F) where the stay (99) and the vehicle body component (84) come into contact with each other.

8. The vehicle according to claim 7.

9. A steering angle sensor (100) is provided for detecting a rotation angle of the steering shaft (91), The steering angle sensor (100) is provided between an upper end of the head pipe (24) and the brake hose (112), A harness (102) connected to the steering angle sensor (100) is arranged to extend outside the movable range of the brake hose (112).

3. A vehicle as claimed in claim 1 or 2.

Images