Windscreen device

Abstract

To provide a windscreen device capable of more easily adjusting a height of a windscreen.SOLUTION: A windscreen device includes a shaft 54 that connects an upper link member 61 supporting a windscreen 31 in a vertically swingable manner and a bracket 40. On one side of the shaft 54 in a vehicle left-right direction, there are included: a bracket side gear 57 supported by the bracket 40 in a relatively non-rotatable manner; and a link side gear 58 supported by the upper link member 61 in a relatively non-rotatable manner. On respective axially facing parts of the bracket side gear 57 and the link side gear 58, there are included rotation regulation parts (uneven shapes 57a and 58a) capable of regulating relative rotation. The rotation regulation parts are pressed by a gear lock mechanism 59 to regulate relative rotation between the bracket side gear 57 and the link side gear 58, and can release the regulation of the relative rotation between the bracket side gear 57 and the link side gear 58 when pressing by the gear lock mechanism 59 is released.SELECTED DRAWING: Figure 6

Description

[Technical Field]

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

[0002] BACKGROUND ART Conventionally, there is known a windscreen device that includes a windscreen that rises in front of the riding position and a screen support mechanism that enables the windscreen to be manually raised and lowered (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7194262 Public Relations [Patent Document 2] Patent No. 6367263 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-described conventional configuration, the operating units for unlocking the windscreen height adjustment are provided on both the left and right sides of the screen support mechanism. To unlock the windscreen height adjustment, the user must simultaneously pull both operating units outward in the left and right directions. This requires the user to use both hands to adjust the windscreen height, and there is a demand for a configuration that makes it easier to adjust the windscreen height.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a windscreen device that allows for easier adjustment of the height of the windscreen. [Means for solving the problem]

[0006] As a means for solving the above problem, a first aspect of the present invention provides a windscreen (31), a holder (50) that supports the windscreen (31), a bracket (40) that is fixed to the vehicle body, link members (61, 62) that have base ends (61a, 62a) supported by the bracket (40) so as to be able to swing up and down and that support the holder (50) at their tip ends (61c, 62c), and a shaft (54) that extends along the left-right direction of the vehicle and that penetrates and connects the base end (61a) of the link member (61) to a link connecting portion (42) of the bracket (40) in the left-right direction of the vehicle, and a bracket-side engaging member (57) that is arranged coaxially with the shaft (54) on one side of the shaft (54) in the left-right direction of the vehicle and is supported by the link connecting portion (42) of the bracket (40) so as not to be able to rotate relative to the bracket, the link-side engaging member (58) is disposed coaxially with the shaft (54) and outboard of the racket-side engaging member (57) in the vehicle left-right direction, is supported by the base end (61 a) of the link member (61) so as to be non-rotatable relative to the bracket-side engaging member (57), faces the bracket-side engaging member (57) in the axial direction, and is movable forward and backward in the axial direction; and a locking mechanism (59) is disposed outboard of the link-side engaging member (58) in the vehicle left-right direction, and presses the link-side engaging member (58) inward in the vehicle left-right direction to fix the link-side engaging member (58) and the bracket-side engaging member (57) in a state where they cannot rotate relative to each other. The bracket-side engaging member (57) and the link-side engaging member (58) are provided at opposing axial portions with rotation restricting portions (57 a,The lock mechanism (59) includes an operating element (66) that switches between a lock position (P3) and an unlock position (P4), and a pressing member (67) that presses the link side engaging member (58) inward in the left-right direction of the vehicle when the operating element (66) is at the lock position (P3), and releases the pressing of the link side engaging member (58) inward in the left-right direction of the vehicle when the operating element (66) is at the unlock position (P4). When the operating element (66) is at the lock position (P3), the bracket side engaging member (57) and the link side engaging member (58a) are pressed against each other. The rotation restricting portions of the members (58) are fixed in a state in which the relative rotation of the bracket side engaging member (57) and the link side engaging member (58) is restricted by the pressing force of the pressing member (67), and when the operating element (66) is in the unlocked position (P4), the rotation restricting portions of the bracket side engaging member (57) and the link side engaging member (58) allow the link side engaging member (58) to move outward in the left-right direction of the vehicle, thereby enabling the restriction on the relative rotation of the bracket side engaging member (57) and the link side engaging member (58) to be released. According to this configuration, a holder supporting the windscreen and a bracket fixed to the vehicle body are connected via a link member, and a bracket-side engaging member and a link-side engaging member are disposed at the base end of the link member on the bracket side, which are prevented from rotating relative to each other when pressed in the axial direction. A locking mechanism disposed on one side of the vehicle in the transverse direction switches between pressing and releasing the link-side engaging member with a pressing member by operating an operating element. With the pressing member released, the link-side engaging member can move outward in the transverse direction of the vehicle, allowing relative rotation between the bracket-side engaging member and the link-side engaging member. By arranging the locking mechanism and operating element together on one side of the vehicle in the transverse direction, the user can operate the device with one hand, facilitating one-handed adjustment of the windscreen height. Furthermore, the size and number of mechanical components can be reduced, resulting in a lighter and more compact device overall.

[0007] In a second aspect of the present invention, in the first aspect described above, the axially opposing portions of the bracket side engaging member (57) and the link side engaging member (58) are provided with meshing concave and convex shapes (57a, 58a) as rotation restricting portions (57a, 58a). According to this configuration, by providing the opposing portions of the bracket side engaging member and the link side engaging member with a concave-convex shape that acts as a rotation restricting portion, the relative rotation of the bracket side engaging member and the link side engaging member can be reliably restricted by pressing with the pressing member.

[0008] In a third aspect of the present invention, in the second aspect, an elastic member (68) is provided that is compressed between the pressing member (67) and the link-side engaging member (58). When the operating element (66) is in the unlocked position (P4), the concave and convex shapes (57a, 58a) of the bracket-side engaging member (57) and the link-side engaging member (58) are brought into a state of meshing with each other due to the biasing force of the elastic member (68), and the pressing member (67) is brought into a state of separation from the link-side engaging member (58) due to the biasing force of the elastic member (68). In this state, the link-side engaging member (58) can be displaced outward in the left-right direction of the vehicle against the biasing force of the elastic member (68) by a torque equal to or greater than a specified value, and the bracket-side engaging member (57) and the link-side engaging member (58) can rotate relative to each other. According to this configuration, the elastic member biases the link-side engaging member inward in the vehicle's left-right direction, appropriately restricting relative rotation between the bracket-side engaging member and the link-side engaging member even when the pressure from the pressing member is released. Meanwhile, when torque greater than a specified level is applied to the link-side engaging member, the concave-convex shape of the link-side engaging member rides up onto the concave-convex shape of the bracket-side engaging member, causing the link-side engaging member to displace outward in the vehicle's left-right direction against the biasing force of the elastic member, shifting the engagement of the concave-convex shapes step by step, allowing the link-side engaging member to rotate. As a result, after the pressure from the locking mechanism's pressing member on the link-side engaging member is released, the link member can be swung relative to the bracket with a predetermined knocking sensation, facilitating windscreen height adjustment. The elastic biasing force of the elastic member temporarily holds the screen height, simplifying the operating procedure compared to, for example, a configuration in which the screen height is adjusted by pulling an operating element. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a windscreen device that allows for easier adjustment of the height of the windscreen. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a left side view of a motorcycle according to an embodiment of the present invention. [Figure 2] FIG. 2 is a left side view of the vicinity of the windscreen of the motorcycle. [Figure 3] FIG. 4 is a left side view of the windscreen when it is at a lower limit position. [Figure 4] FIG. 4 is a left side view of the windscreen when it is at an upper limit position. [Figure 5] FIG. 4 is a right side view of the windscreen when it is at a lower limit position. [Figure 6] FIG. 2 is a front view of the screen support mechanism. [Figure 7A] 10 is an explanatory diagram of a gear locking state of the gear locking mechanism of the screen locking device. FIG. [Figure 7B] FIG. 7(B) is a view taken along the arrow B7 in FIG. [Figure 8A] 10 is an explanatory diagram of the gear lock mechanism in a gear unlocked state. FIG. [Figure 8B] FIG. 8(B) is a view taken along the arrow B8 in FIG. 8(A). DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, directions such as front, rear, left, and right are the same as directions in the vehicle described below unless otherwise specified. In addition, in the drawings used in the following description, an arrow FR indicating the front of the vehicle, an arrow LH indicating the left side of the vehicle, an arrow UP indicating the top of the vehicle, and a line CL indicating the center of the vehicle body to the left and right are shown in appropriate positions.

[0012] <Entire vehicle> FIG. 1 shows a scooter-type motorcycle (saddle-ride type vehicle) 1 as an example of a saddle-ride type vehicle according to an embodiment. The motorcycle 1 has a front wheel 3, which is a steering wheel, and a rear wheel 4, which is a drive wheel. The front wheel 3 is supported by a front fork 3a and can be steered by a handlebar 2. The rear wheel 4 is supported by, for example, a swing-type power unit 5 and can be driven by the power unit 5. The swing-type power unit 5 integrally includes a prime mover, such as an internal combustion engine or an electric motor, and a transmission that transmits the output of the prime mover to the rear wheel 4.

[0013] Steering system components including the handlebars 2, front forks 3a, and front wheel 3 are steerably supported on a head pipe 11a at the front end of a body frame 11. The front portion of a swing-type power unit 5 is supported in a vertically swingable manner in the middle between the front and rear of the body frame 11. The rear portion of the power unit 5 is supported in the rear portion of the body frame 11 via a rear cushion 4a. Note that "middle" in the embodiments is not limited to "center."

[0014] In the embodiment, a telescopic front fork 3a is used as an example of the front wheel suspension of the motorcycle 1, but the configuration is not limited to this. For example, the front wheel suspension may be of another type, such as a link type using a swing arm. The motorcycle 1 is not limited to a unit swing type vehicle as described above, but may be a vehicle in which the prime mover is fixedly mounted on the body frame 11.

[0015] A seat 15 on which a passenger sits is disposed behind the handlebars 2. A low floor section 6 of the vehicle body is provided between the handlebars 2 and the seat 15. A straddling space K1 is formed above the low floor section 6 to make it easier for the passenger to straddle the vehicle body. The low floor section 6 is equipped with a pair of left and right floor steps 7 on which the driver seated in the seat 15 places his or her left and right feet, and a center tunnel 7a extending in the fore-and-aft direction of the vehicle between the left and right floor steps 7.

[0016] <Body frame 11> Referring to FIG. 1, the body frame 11 includes a head pipe 11a, a down frame 11b extending downward and rearward from the head pipe 11a, a lower frame 11c extending rearward from the lower end of the down frame 11b, a center frame 11d extending rearward and upward from the rear end of the lower frame 11c, a middle frame 11e installed between the down frame 11b and the center frame 11d, and a rear frame 11f having a front end connected to the upper rear side of the middle frame 11e and extending rearward and upward from the front end.

[0017] The upper end of the center frame 11d is connected to the lower front side of the rear frame 11f. The down frame 11b, the lower frame 11c, and the center frame 11d are configured as an integrated frame member that is continuous via a bent portion. The down frame 11b, the lower frame 11c, and the center frame 11d, as well as the middle frame 11e and the rear frame 11f, are provided on both the left and right sides of the vehicle body, forming left and right pairs.

[0018] <Body Cover 21> The periphery of the body frame 11 is covered with a body cover 21. The body cover 21 includes left and right floor steps 7, a center tunnel 7a, a front body cover 22 connected to the front of the left and right floor steps 7 and the center tunnel 7a, and a rear body cover 23 connected to the rear of the left and right floor steps 7 and the center tunnel 7a.

[0019] An item storage box (not shown) is disposed inside the rear body cover 23. The item storage box has a container shape that opens upward. The upper opening of the item storage box can be opened and closed by rotating the seat 15 via a hinge (not shown) on the front end side.

[0020] FIG. 2 is a left side view of the area around the windscreen 31. 1 and 2, a windscreen 31 that rises up in front of the riding position of the motorcycle 1 is disposed above and in front of the front body cover 22. The windscreen 31 is supported by the vehicle body, which includes the front body cover 22 and a cover support frame (not shown), via a screen support mechanism 35. The windscreen 31 (screen main body) and the screen support mechanism 35 are included in a windscreen device 30 of the motorcycle 1.

[0021] <Windscreen device 30> 1 and 2, the windscreen 31 extends upward and rearward from its lower end in front of the riding position where the rider operates the motorcycle 1. The windscreen 31 extends upward and rearward from its lower end at an angle in side view. The windscreen 31 can be raised and lowered by manually operating a screen support mechanism 35 (movable mechanism).

[0022] The lower part of the windscreen 31 is fixed to a holder 50 of the screen support mechanism 35. The holder 50 is supported by a bracket 40 fixed to the vehicle body of the screen support mechanism 35 so that it can be raised and lowered up and down. The screen support mechanism 35 is equipped with an operation unit 65 on the left side of the vehicle that allows manual operation by the driver (passenger, user). The screen support mechanism 35 allows the windscreen 31 to be raised and lowered up and down by the user manually operating the operation unit 65.

[0023] Here, a meter device 8 is disposed above the front body cover 22 and in front of the handlebars 2. The meter device 8 functions as an instrument that indicates, for example, vehicle speed and engine RPM. The meter device 8 is supported by the front body cover 22 and a cover support frame (not shown), for example, separate from steering system components. The meter device 8 is configured with a display device such as a liquid crystal display that displays various information about the motorcycle 1 as images. The meter device 8 is disposed with, for example, a rectangular display screen facing rearward (toward the rider).

[0024] The meter device 8 is supported by a meter support portion 41 provided at the rear of a bracket 40 of the screen support mechanism 35. A meter visor 41a is provided on the upper part of the meter support portion 41. The meter visor 41a extends rearward from an area spanning the upper edge and the upper parts of the left and right side edges of the meter device 8, and covers the upper part of the display screen. The meter visor 41a functions as a canopy, preventing external light from being reflected on the display screen and making it difficult to see.

[0025] <Windscreen 31> 1 and 2, the windscreen 31 is formed in a plate shape from, for example, a transparent resin material. The windscreen 31 has a gently bulging shape that protrudes upward and forward to match the vehicle exterior. The windscreen 31 controls the flow of wind toward the rider when the motorcycle 1 is traveling forward. The windscreen 31 is formed symmetrically with respect to the vehicle body lateral center line CL as an axis of symmetry.

[0026] FIG. 3 is a left side view when the windscreen 31 is at the lowest position P1, FIG. 4 is a left side view when the windscreen 31 is at the highest position P2, and FIG. 5 is a right side view when the windscreen 31 is at the lowest position P1. The windscreen 31 is supported on the vehicle body by a screen support mechanism 35 so that its height can be adjusted. The windscreen 31 can be moved in both directions between a lower limit position P1 shown in Fig. 3 and an upper limit position P2 shown in Fig. 4 by operation of the screen support mechanism 35. Support arms 51a of a holder 50 are fastened and fixed to both the left and right sides of the middle part of the windscreen 31 in the vertical direction.

[0027] When in the lower limit position P1, the windscreen 31 is inclined to follow the front upper surface 22a of the front body cover 22, which is inclined upward toward the rear, in a side view. The lower front end (lower edge 31c) of the windscreen 31 when in the lower limit position P1 is spaced above and rearward from the upper edge 24a of the headlight 24 (see FIG. 2). This prevents the windscreen 31 from affecting the light distribution of the headlight 24. The lower front end of the windscreen 31 when in the lower limit position P1 is spaced further outward (upper and forward) from the front upper surface 22a of the front body cover 22. This allows some of the traveling wind to be introduced between the windscreen 31 and the front body cover 22. The upper rear end of the windscreen 31 when in the lower limit position P1 is located above the meter visor 41a.

[0028] The windscreen 31 at the upper limit position P2 is moved rearward and upward so that its front lower end is aligned with the front upper surface 22a of the front body cover 22 more than when it is at the lower limit position P1, and is arranged to stand upright at a steeper incline than when it is at the lower limit position P1.

[0029] When the windscreen 31 is in the upper limit position P2, the front lower end portion is moved rearward and upward more than when it is in the lower limit position. When the windscreen 31 is in the upper limit position P2, the front lower end portion is further outward (frontward and upward) from the vehicle than the front body cover 22 and the bracket 40. This makes it possible to introduce some of the traveling wind between the windscreen 31 and the front body cover 22, just as when the windscreen 31 is in the lower limit position P1. When the windscreen 31 is in the upper limit position P2, the rear upper end portion of the windscreen 31 is moved upward more than when it is in the lower limit position P1, further reducing the amount of traveling wind blowing toward the driver.

[0030] <Screen support mechanism 35> FIG. 6 is a front view (front view) of the screen support mechanism 35. 3, 4, and 6, the screen support mechanism 35 includes a bracket 40 fixed to the vehicle body, upper and lower link members 61, 62 whose base ends 61a, 62a are supported by the bracket 40 so as to be able to swing up and down, a holder 50 supported by tip ends 61c, 62c of the upper and lower link members 61, 62, and a windscreen 31 attached to the holder 50. Each of the bracket 40, the upper and lower link members 61, 62, and the holder 50 is formed from, for example, synthetic resin.

[0031] The bracket 40 comprises a bracket main body 40a which is arranged at an upward tilt to the rear so as to follow the front upper surface 22a of the front body cover 22 in a side view, an upper link connecting portion 42 which extends from the top of the bracket main body 40a toward the windscreen 31 and connects the base end portion 61a of the upper link member 61 so as to be rotatable relative to the bracket main body 40a via a pivot axis which runs along the left-right direction, and a lower link connecting portion 43 which extends from the bottom of the bracket main body 40a toward the windscreen 31 and connects the base end portion 62a of the lower link member 62 so as to be rotatable relative to the bracket main body 40a via a pivot axis which runs along the left-right direction. A meter support portion 41 that supports the meter device 8 and a meter visor 41a are supported on the upper rear portion of the bracket 40.

[0032] The upper link member 61 includes a pair of left and right base end portions 61a located on the outer side of the rear portion of the bracket 40 in the left-right direction, a pair of left and right arm portions 61b extending forward and inward in the left-right direction from the left and right base end portions 61a, and a pair of left and right tip portions 61c that are the tips of the left and right arm portions 61b. The upper link member 61 is provided symmetrically with respect to the vehicle body left-right center line CL as an axis of symmetry. The left and right arm portions 61b extend forward and inward in the left-right direction from the left and right base end portions 61a while being appropriately inclined, bent, and curved.

[0033] The lower link member 62 includes a pair of left and right base ends 62a located on the left-right outer sides of the front portion of the bracket 40, a pair of left and right arm portions 62b extending forward and inward in the left-right direction from the left and right base ends 62a, and a pair of left and right tip ends 62c that are the distal ends of the left and right arm portions 62b. The lower link member 62 is symmetrically arranged with the vehicle body left-right center line CL as an axis of symmetry. The left and right arm portions 62b extend forward and inward in the left-right direction from the base ends 62a on the same side while appropriately inclining, bending, and curving. The front portion of the bracket 40 is narrower in left-right width than the rear portion of the bracket 40, and the lower link member 62 is smaller overall than the upper link member 61. The length of the lower link member 62 in a side view is shorter than the length of the upper link member 61 in a side view. By raising and lowering the windscreen 31 via these upper and lower link members 61, 62, the rear-up tilt angle increases as the windscreen 31 rises.

[0034] The holder 50 comprises a rectangular frame-shaped holder main body 51 which is arranged with an upward tilt to the rear so as to fit along the rear lower surface (back surface) of the windscreen 31 in a side view, an upper link connecting portion 52 which extends from the top of the holder main body 51 toward the vehicle body and connects the tip end 61c of the upper link member 61 so as to be rotatable relative to the holder main body 51 via a pivot axis which runs along the left-right direction, and a lower link connecting portion 53 which extends from the bottom of the holder main body 51 toward the vehicle body and connects the tip end 62c of the lower link member 62 so as to be rotatable relative to the holder main body 51 via a pivot axis which runs along the left-right direction.

[0035] Support arms 51a extending toward the rear surface of the windscreen 31 are formed at the four corners of the holder main body 51 facing the windscreen 31. A fastening seat 51a1 displaced toward the windscreen 31 is formed at the tip of each support arm 51a. A portion of the windscreen 31 facing each fastening seat 51a1 is fastened to each fastening seat 51a1 using a bolt B1.

[0036] The pivot axis connecting the upper link connector 42 of the bracket 40 and the base end 61a of the upper link member 61 is a shaft 54 ​​that extends across the entire width of the screen support mechanism 35. A screen locking device 56 is located on one side (left side) of the shaft 54 ​​in the left-right direction of the vehicle, allowing the height of the windscreen 31 to be adjusted between an upper limit position and a lower limit position (allowing it to be fixed at any height). Line C1 in the figure indicates the central axis of the shaft 54. Circular caps 69L and 69R, viewed from the side, are attached to the left and right ends of the shaft 54. The left cap 69L can rotate around the center of the shaft 54 ​​together with an operating lever 66, a link-side gear 58, and the upper link member 61, which will be described later. A double nut that secures the right end of the shaft 54 ​​is located within the right cap 69R, allowing for the meshing tolerance of the bracket-side gear 57 and the link-side gear 58, which will be described later, to be accommodated.

[0037] The screen lock device 56 comprises a bracket side gear 57 arranged coaxially with the shaft 54 ​​and supported non-rotatably on the upper link connection portion 42 on the left side of the bracket 40; a link side gear 58 arranged coaxially with the shaft 54 ​​on one side (left side) of the bracket side gear 57 in the left-right direction of the vehicle, supported non-rotatably on the base end portion 61a of the upper link member 61, facing the bracket side gear 57 in the axial direction (left-right direction) and capable of moving forward and backward in the axial direction (left-right direction) relative to the bracket side gear 57; and a gear lock mechanism 59 arranged on one side (left side) of the link side gear 58 in the left-right direction of the vehicle and capable of pressing the link side gear 58 toward the other side (right side) of the vehicle in the left-right direction to engage the link side gear 58 with the bracket side gear 57.

[0038] The axially opposing portions of the bracket-side gear 57 and the link-side gear 58 are formed with concave-convex shapes 57a, 58a, each including a plurality of gear teeth arranged in the circumferential direction of the gears 57, 58. The concaves and convexities of the concave-convex shapes 57a, 58a are arranged at equal intervals in the circumferential direction of the gears 57, 58 and can mesh with each other every time the gears 57, 58 rotate relative to each other by a specified angle. The concaves and convexities of the concave-convex shapes 57a, 58a change the axial height of the opposing portions of the gears 57, 58. When an axial force is applied so as to press the concave-convex shapes 57a, 58a against each other, the concave-convex shapes 57a, 58a mesh with each other, thereby restricting the relative rotation of the bracket-side gear 57 and the link-side gear 58. Tapered surfaces are formed on both circumferential sides of the gear teeth, which allows the uneven shape 58a of the link side gear 58 to ride over the uneven shape 57a of the bracket side gear 57 when the bracket side gear 57 and the link side gear 58 are rotated relative to each other as described below.

[0039] The gear teeth (concave-convex shapes 57a, 58a) of the gears 57, 58 may be formed, for example, in a wave shape with continuously curved surfaces. In this case, when the bracket-side gear 57 and the link-side gear 58 are rotated relative to each other as described below, the convex-convex shape 58a of the link-side gear 58 easily rides on the convex-convex shape 57a of the bracket-side gear 57. This allows the upper link member 61 to swing smoothly relative to the bracket 40.

[0040] Fig. 7(A) is an explanatory diagram of the gear lock mechanism 59 in a gear locked state, Fig. 7(B) is a view taken along the arrow B7 in Fig. 7(A), Fig. 8(A) is an explanatory diagram of the gear lock mechanism 59 in a gear unlocked state, and Fig. 8(B) is a view taken along the arrow B8 in Fig. 8(A). 7(A) and 8(A), the gear lock mechanism 59 includes an operator (operating lever 66) that switches between a first operating position (gear lock position P3) and a second operating position (gear unlock position P4), and a pressing member 67 that is pressed toward the other side in the left-right direction of the vehicle (right side) by a cam portion 66c on the base end side of the operating lever 66 when the operating lever 66 is in the gear lock position P3, pressing the link side gear 58 toward the other side in the left-right direction of the vehicle (toward the bracket side gear 57), and that is released from the pressing toward the other side in the left-right direction of the vehicle when the operating portion 65 is in the gear lock unlock position P4, thereby releasing the pressing of the link side gear 58 toward the other side in the left-right direction of the vehicle. In the drawings, reference numeral 66a denotes a lever body of the operating lever 66 on which a user places his / her hand, and reference numeral 66b denotes a swing shaft of the operating lever 66.

[0041] Referring to Figures 7(A) and 7(B), when the operating part 65 is in the gear lock position P3, the respective concave and convex shapes 57a, 58a of the bracket side gear 57 and the link side gear 58 are brought into meshing engagement with each other due to the pressing force of the pressing member 67, and the bracket side gear 57 and the link side gear 58 are locked in a state where they cannot rotate relative to each other. Referring to Figures 8(A) and 8(B), when the operating unit 65 is in the gear lock release position P4, the concave and convex shapes 57a, 58a of the bracket side gear 57 and the link side gear 58 can be disengaged by the link side gear 58 moving to one side in the left-right direction of the vehicle, and the bracket side gear 57 and the link side gear 58 can rotate relative to each other.

[0042] An elastic member (coil spring 68), which is a compression spring, is provided between the pressing member 67 and the link-side gear 58. As a result, even when the operating portion 65 is operated to the gear unlock position P4 (gear unlock position), the concave-convex shapes 57a, 58a of the bracket-side gear 57 and the link-side gear 58 remain in mesh with each other due to the biasing force of the coil spring 68. At this time, the pressing member 67 moves leftward due to the biasing force of the coil spring 68, and is separated from the link-side gear 58 by the gap L1.

[0043] The biasing force of the coil spring 68 keeps the bracket side gear 57 and the link side gear 58 in mesh with each other, so that even if torque based on the weight of the windscreen 31 and holder 50 acts on the link side gear 58, the relative rotation between the bracket side gear 57 and the link side gear 58 is restricted, and the current height of the windscreen 31 is maintained. Therefore, when adjusting the height of the windscreen 31, simply operating the operating unit 65 to the gear lock release position maintains the height of the windscreen 31 at that time, making it easier to make fine height adjustments of the windscreen 31.

[0044] Furthermore, when torque equal to or greater than a specified value is applied to the link-side gear 58 with the operating unit 65 operated to the gear lock release position, the concave-convex shape 58a of the link-side gear 58 rides up onto the concave-convex shape 57a of the bracket-side gear 57, displacing the link-side gear 58 to one side in the left-right direction of the vehicle against the biasing force of the coil spring 68. This makes it possible to rotate the link-side gear 58 while shifting the meshing of the concave-convex shapes 57a, 58a step by step. The link-side gear 58 is displaced to one side in the left-right direction of the vehicle against the biasing force of the coil spring 68, and the bracket-side gear 57 and the link-side gear 58 become capable of relative rotation.

[0045] When adjusting the height of the windscreen 31, the user first raises the lever of the operating unit 65 on the left side of the shaft 54 ​​and swings it from the locked position to the unlocked position, thereby releasing the locked state S1 of the lock operating unit. In this embodiment, the locked state S1 of the lock operating unit can be released by operating the operating unit 65 provided on one side of the shaft 54 ​​in the left-right direction of the vehicle, which makes it possible to perform the unlocking operation with one hand, compared to a configuration in which operating units 65 are provided on both the left and right sides and are operated. The occupant can operate the operating unit 65 with their left hand while generally operating a brake lever or the like supported on the right side of the handlebars 2.

[0046] With the lever raised, the user rotates the operating unit 65 around the shaft 54. At this time, the user can grip the handle 61d formed on the left arm 61b of the upper link member 61 to swing the upper link member 61. This makes it easier to swing the upper link member 61, and therefore to adjust the height of the windscreen 31, compared to a configuration in which the upper link member 61 is swung by gripping only the dial-shaped cap 69L that is coaxial with the shaft 54.

[0047] In particular, in this embodiment, even when the operation lever 66 is swung to the gear lock release position P4, the bracket-side gear 57 and the link-side gear 58 remain meshed with each other due to the biasing force of the coil spring 68. As a result, simply swinging the operation lever 66 to the gear lock release position P4 maintains the height of the windscreen 31 at that time. By applying a torque equal to or greater than a specified value to the link-side gear 58 and the upper link member 61 from this state, the upper link member 61 can be swung to adjust the height of the windscreen 31. For this reason, by providing the handle 61d at a position on the upper link member 61 that ensures a larger rotation radius than the cap 69L in a side view, it is easier to apply torque to the upper link member 61, making it easier to adjust the height of the windscreen 31.

[0048] As described above, the windscreen device 30 in the above embodiment includes the windscreen 31, the holder 50 that supports the windscreen 31, the bracket 40 that is fixed to the vehicle body, the upper and lower link members 61, 62 that have base ends 61a, 62a that are supported by the bracket 40 so as to be able to swing up and down and that support the holder 50 at their tip ends 61c, 62c, and the shaft 54 ​​that extends in the left-right direction of the vehicle and penetrates and connects the base end 61a of the upper link member 61 to the link connecting portion 42 of the bracket 40 in the left-right direction of the vehicle. On one side in the vehicle left-right direction, there is a bracket-side gear 57 that is arranged coaxially with the shaft 54 ​​and supported non-rotatably by the link connecting portion 42 of the bracket 40; a link-side gear 58 that is arranged coaxially with the shaft 54 ​​on the outer side of the bracket-side gear 57 in the vehicle left-right direction, supported non-rotatably by the base end portion 61 a of the upper link member 61, and faces the bracket-side gear 57 in the axial direction and is movable forward and backward in the axial direction; and a link-side gear 58 that is arranged on the outer side of the link-side gear 58 in the vehicle left-right direction and presses the link-side gear 58 inward in the vehicle left-right direction to move the link-side gear 58 and the bracket-side gear 57 together. and a gear lock mechanism 59 that fixes the bracket side gear 57 and the link side gear 58 in a meshed state that prevents relative rotation between them. The opposing axial portions of the bracket side gear 57 and the link side gear 58 are provided with rotation restriction portions (concave and convex shapes 57a, 58a) that can restrict the relative rotation between the bracket side gear 57 and the link side gear 58. The gear lock mechanism 59 includes an operating lever 66 that switches between a gear lock position P3 and a gear lock release position P4, and a gear lock mechanism 66 that presses the link side gear 58 inward in the left-right direction of the vehicle when the operating lever 66 is in the gear lock position P3. and a pressing member 67 that releases the pressure on the link-side gear 58 toward the inside in the left-right direction of the vehicle when the operating lever 66 is in the lock release position P4. When the operating lever 66 is in the gear lock position P3, the rotation restricting portions (concave and recessed shapes 57a, 58a) of the bracket-side gear 57 and the link-side gear 58 are fixed in a state in which the relative rotation of the bracket-side gear 57 and the link-side gear 58 is restricted by the pressing force of the pressing member 67. When the operating lever 66 is in the gear lock release position P4, the rotation restricting portions (concave and recessed shapes 57a,58a), the link side gear 58 can move outward in the left-right direction of the vehicle, and the restriction on the relative rotation between the bracket side gear 57 and the link side gear 58 can be released.

[0049] According to this configuration, the holder 50 supporting the windscreen 31 and the bracket 40 fixed to the vehicle body are connected via upper and lower link members 61, 62. The bracket-side gear 57 and the link-side gear 58 are disposed on the base end 61a of the upper link member 61, which is closer to the bracket 40, and are prevented from rotating relative to each other when pressed in the axial direction. The gear lock mechanism 59, disposed on one side of the vehicle in the transverse direction, switches between pressing and releasing the link-side gear 58 by the pressing member 67 through operation of the operating lever 66. With the pressing member 67 released, the link-side gear 58 can move outward in the transverse direction of the vehicle, allowing relative rotation between the bracket-side gear 57 and the link-side gear 58. By arranging the gear lock mechanism 59 and the operating lever 66 together on one side of the vehicle in the transverse direction, the user can operate the mechanism with one hand, facilitating height adjustment of the windscreen 31. Furthermore, the size and number of mechanical components can be reduced, resulting in a lightweight and compact device overall.

[0050] In the windscreen device 30, the bracket-side gear 57 and the link-side gear 58 are provided at their axially opposing portions with meshing concave and convex shapes 57a, 58a as rotation restricting portions. According to this configuration, by providing the opposing portions of the bracket side gear 57 and the link side gear 58 with concave and convex shapes 57a, 58a as rotation restricting portions, the relative rotation of the bracket side gear 57 and the link side gear 58 can be reliably restricted by the pressure applied by the pressing member 67.

[0051] The windscreen device 30 is provided with a coil spring 68 that is compressed between the pressing member 67 and the link-side gear 58, and when the operating lever 66 is in the gear lock release position P4, the concave and convex shapes 57a, 58a of the bracket-side gear 57 and the link-side gear 58 are brought into meshing engagement with each other due to the biasing force of the coil spring 68, and the pressing member 67 is spaced apart from the link-side gear 58 due to the biasing force of the coil spring 68. In this state, the link-side gear 58 can be displaced outward in the left-right direction of the vehicle against the biasing force of the coil spring 68 with torque greater than or equal to a specified value, and the bracket-side gear 57 and the link-side gear 58 can rotate relative to each other. With this configuration, the coil spring 68 biases the link-side gear 58 inward in the left-right direction of the vehicle, so that relative rotation between the bracket-side gear 57 and the link-side gear 58 is appropriately restricted even when the pressure from the pressing member 67 is released. On the other hand, when torque greater than a specified level is applied to the link-side gear 58, the concave-convex shape 58a of the link-side gear 58 rides up onto the concave-convex shape 57a of the bracket-side gear 57, and the link-side gear 58 is displaced outward in the left-right direction of the vehicle against the biasing force of the coil spring 68, allowing the link-side gear 58 to rotate while shifting the meshing of the concave-convex shapes 57a, 58a step by step. As a result, after the pressure on the link-side gear 58 by the pressing member 67 of the gear lock mechanism 59 is released, the upper link member 61 can be swung with a predetermined knocking feeling relative to the bracket 40, making it easy to adjust the height of the windscreen 31. By temporarily holding the screen height elastically using the biasing force of the elastic member, the operating procedure can be simplified compared to a configuration in which the screen height is adjusted by pulling an operating element, for example.

[0052] The present invention is not limited to the above embodiment, and for example, the rotation restricting portion is not limited to engagement between concave and convex portions, but may be frictional engagement between flat portions, or may be other engagement means. The operating element of the locking mechanism is not limited to an operating lever, but may be a handle that is pushed and pulled in the axial direction, a dial that rotates around an axis, or other operating element. The windscreen device 30 of this embodiment may be applied to saddle-ride type vehicles other than motorcycles. The saddle-ride type vehicles include all vehicles on which a driver straddles the body, and include not only motorcycles (including motorized bicycles and scooter-type vehicles), but also three-wheeled vehicles (including vehicles with one front wheel and two rear wheels, as well as vehicles with two front wheels and one rear wheel) or four-wheeled vehicles (such as four-wheeled buggies). The configurations in the above-described embodiments are merely examples of the present invention, and various modifications are possible within the scope of the gist of the present invention, such as replacing the components of the embodiments with well-known components. [Explanation of symbols]

[0053] 1. Motorcycles (saddle-type vehicles) 31 Windscreen 40 Bracket 42 Link connection part 50 holder 54 Shaft 57 Bracket side gear (bracket side engaging member) 57a, 58a Rotation restriction part, uneven shape 58 Link side gear (link side engaging member) 59 Gear lock mechanism (lock mechanism) 61,62 Link member 61a,62a Base end 61c,62c Tip 66 Operating lever (operator) 67 Pressing member 68 Coil spring (elastic member) P3 Gear lock position (lock position) P4 Gear unlock position (unlock position)

Claims

1. A windscreen (31); a holder (50) for supporting the windscreen (31); a bracket (40) fixed to the vehicle body; link members (61, 62) whose base ends (61a, 62a) are supported by the bracket (40) so as to be able to swing up and down, and whose tip ends (61c, 62c) support the holder (50); a shaft (54) extending along the left-right direction of the vehicle and penetrating through the base end (61 a) of the link member (61) and the link connecting portion (42) of the bracket (40) in the left-right direction of the vehicle to connect them, On one side of the shaft (54) in the left-right direction of the vehicle, a bracket-side engaging member (57) that is arranged coaxially with the shaft (54) and supported by the link connecting portion (42) of the bracket (40) so as to be non-rotatable relative to the shaft; a link-side engaging member (58) that is arranged coaxially with the shaft (54) and further outward in the vehicle left-right direction than the bracket-side engaging member (57), that is supported by the base end (61 a) of the link member (61) so as not to be rotatable relative to the link-side engaging member (58), that faces the bracket-side engaging member (57) in the axial direction, and that is movable forward and backward in the axial direction; a locking mechanism (59) that is disposed outward of the link-side engaging member (58) in the left-right direction of the vehicle and presses the link-side engaging member (58) inward in the left-right direction of the vehicle to fix the link-side engaging member (58) and the bracket-side engaging member (57) in a state where they cannot rotate relative to each other, The bracket side engaging member (57) and the link side engaging member (58) are provided at their respective opposing axial portions with concave and convex shapes (57a, 58a) that mesh with each other so as to restrict relative rotation between the bracket side engaging member (57) and the link side engaging member (58), The locking mechanism (59) an operator (66) that switches between a locked position (P3) and an unlocked position (P4); a pressing member (67) that presses the link-side engaging member (58) inward in the left-right direction of the vehicle when the operating element (66) is at the lock position (P3), and releases the pressing of the link-side engaging member (58) inward in the left-right direction of the vehicle when the operating element (66) is at the unlock position (P4); an elastic member (68) compressed between the pressing member (67) and the link side engaging member (58), When the operating element (66) is in the lock position (P3), the concave-convex shapes (57a, 58a) of the bracket side engaging member (57) and the link side engaging member (58) are fixed in a state in which relative rotation between the bracket side engaging member (57) and the link side engaging member (58) is restricted by the pressing force of the pressing member (67), When the operating element (66) is in the unlocked position (P4), the pressing member (67) is separated from the link-side engaging member (58) by the biasing force of the elastic member (68), but the concave-convex shapes (57a, 58a) of the bracket-side engaging member (57) and the link-side engaging member (58) are maintained in a mutually meshed state by the biasing force of the elastic member (68), When the operating element (66) is in the unlocked position (P4), the link side engaging member (58) can be displaced outward in the left-right direction of the vehicle against the biasing force of the elastic member (68) by a torque greater than or equal to a specified value, and the bracket side engaging member (57) and the link side engaging member (58) can rotate relative to each other.

2. 2. The windscreen device according to claim 1, wherein the bracket-side engaging member (57) and the link-side engaging member (58) are a bracket-side gear (57) and a link-side gear (58).

3. 3. The windscreen device according to claim 2, wherein the concave and convex shapes (57a, 58a) include a plurality of gear teeth arranged in the circumferential direction of each of the bracket-side gear (57) and the link-side gear (58).

4. 4. The windscreen device according to claim 3, wherein tapered surfaces are formed on both sides of the gear teeth in the circumferential direction.

5. 5. The windscreen device according to claim 4, wherein a torque equal to or greater than the specified value causes the uneven shape (58a) of the link side gear (58) to ride up onto the uneven shape (57a) of the bracket side gear (57), thereby displacing the link side gear (58) outward in the left-right direction of the vehicle against the biasing force of the elastic member (68).

Images