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] 2. Description of the Related Art Conventionally, there is known a windscreen device that includes a windscreen that rises in front of a 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 conventional configuration, the operation units for unlocking the height adjustment of the windscreen are provided on both the left and right sides of the screen support mechanism. When unlocking the height adjustment of the windscreen, the user needs to simultaneously pull both the left and right operation units outward in the left and right direction. For this reason, when adjusting the height of the windscreen, the user needs to use both hands to perform the operation, and there is a demand for a configuration that makes it easier to adjust the height of the windscreen.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a windscreen device that allows the height of the windscreen to be adjusted more easily. [Means for solving the problem]

[0006] As a means for solving the above problem, a first aspect of the present invention provides a vehicle body having a windscreen (31), a holder (50) that supports the windscreen (31), a bracket (40) fixed to a 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), and a shaft (54) that extends along the left-right direction of the vehicle and connects the base end (61a) of the link member (61) to the link connection portion (42) of the bracket (40) by penetrating therethrough in the left-right direction of the vehicle, and a bracket-side engagement 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 connection portion (42) of the bracket (40) so as not to be rotatable relative to the bracket, a link-side engaging member (58) that is arranged coaxially with the shaft (54) and outboard of the racket-side engaging member (57) in the vehicle left-right direction, is supported by a base end (61a) 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) that is arranged 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 lock mechanism (59) includes an operating element (66) that is switched between a locked position (P3) and an unlocked 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 in the locked 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 in the unlocked position (P4). When the operating element (66) is in the locked 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, the holder supporting the windscreen and the bracket fixed to the vehicle body are connected via a link member, and the bracket side engaging member and the link side engaging member, which cannot rotate relative to each other when pressed in the axial direction, are arranged on the base end of the link member on the bracket side. The lock mechanism arranged on one side in the left-right direction of the vehicle switches between pressing and releasing the link side engaging member by the pressing member by the operating element. When the pressing member is released, the link side engaging member can move outward in the left-right direction of the vehicle, and the bracket side engaging member and the link side engaging member are allowed to rotate relative to each other. By arranging such lock mechanism and operating element together on one side in the left-right direction of the vehicle, it is possible for the user to operate it with one hand, and the height of the windscreen can be easily adjusted. In addition, it is possible to reduce the size of the mechanism parts and the number of parts, and the entire device can be made lighter and more compact.

[0007] In a second aspect of the present invention, in the above-described first aspect, 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 pressure from the pressing member.

[0008] A third aspect of the present invention is the second aspect described above, further comprising an elastic member (68) 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 respective concave and convex shapes (57a, 58a) of the bracket side engaging member (57) and the link side engaging member (58) are brought into a mutually meshing state due to the biasing force of the elastic member (68), and the pressing member (67) is separated from the link side engaging member (58) by 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 link side engaging member is biased inward in the left-right direction of the vehicle by the elastic member, so that the relative rotation of the bracket side engaging member and the link side engaging member is moderately restricted even when the pressure by the pressing member is released. On the other hand, when a torque equal to or greater than a specified value is applied to the link side engaging member, the uneven shape of the link side engaging member rides up onto the uneven shape of the bracket side engaging member, and the link side engaging member is displaced outward in the left-right direction of the vehicle against the biasing force of the elastic member, and the link side engaging member can rotate while shifting the meshing of the uneven shape step by step. As a result, after the pressure of the link side engaging member by the pressing member of the locking mechanism is released, the link member can be swung with a predetermined knocking feeling relative to the bracket, and the height of the windscreen can be easily adjusted. By elastically temporarily holding the screen height by the biasing force of the elastic member, the operation procedure can be simplified compared to a configuration in which the screen height is adjusted by pulling an operating element, for example. Effect of the Invention

[0009] According to the present invention, it is possible to provide a windshield device that can more easily adjust the height of the windshield.

Brief Description of the Drawings

[0010] [Figure 1] FIG. 1 is a left side view of a motorcycle in an embodiment of the present invention. [Diagram 2] FIG. 2 is a left side view of the vicinity of the windshield of the motorcycle. [Diagram 3] FIG. 3 is a left side view when the windshield is in the lower limit position. [Figure 4] FIG. 4 is a left side view when the windshield is in the upper limit position. [Diagram 5] FIG. 5 is a right side view when the windshield is in the lower limit position. [Figure 6] FIG. 6 is a front view (front elevation) of the screen support mechanism. [Figure 7A] FIG. 7 is an explanatory view of the gear lock state of the gear lock mechanism of the screen locking device. [Figure 7B] FIG. 8 is a view taken in the direction of arrow B7 in FIG. 7(A). [Figure 8A] FIG. 9 is an explanatory view of the gear unlock state of the gear lock mechanism. [Figure 8B] FIG. 10 is a view taken in the direction of arrow B8 in FIG. 8(A).

Embodiments for Carrying Out the Invention

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

[0012] <Vehicle as a Whole> FIG. 1 shows a scooter-type motorcycle (saddle-riding type vehicle) 1 as an example of a saddle-riding type vehicle in the 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 bar handle 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 by a head pipe 11a at the front end of a body frame 11. A front portion of a swing-type power unit 5 is supported in the middle between the front and rear of the body frame 11 so as to be able to swing up and down. A 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 illustrated 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 allow the passenger to straddle the vehicle body easily. The low floor section 6 includes a pair of left and right floor steps 7 on which the driver seated on the seat 15 places his or her left and right feet, and a center tunnel 7a extending in the vehicle front-rear direction 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 a 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 bridged between the down frame 11b and the center frame 11d, and a rear frame 11f whose front end is connected to the upper rear side of the middle frame 11e and extends 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 a left-right pair.

[0018] <Car body cover 21> The periphery of the body frame 11 is covered with a body cover 21. The body cover 21 includes the left and right floor steps 7 and the 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 periphery of the windscreen 31. FIG. 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 a vehicle body including 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 drives the motorcycle 1. The windscreen 31 extends obliquely from its lower end toward the upper rear in a 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 to enable manual operation by the driver (passenger, user). The screen support mechanism 35 is capable of raising and lowering the windscreen 31 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) or the like, separate from steering system components. The meter device 8 is formed of 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 the rear side (the driver's side).

[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 portion of the meter support portion 41. The meter visor 41a extends rearward from an area spanning the upper edge and upper portions 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 visor, preventing external light from being reflected on the display screen and making it difficult to see the display screen.

[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 in accordance with 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 left-right center line CL as an axis of symmetry.

[0026] FIG. 3 is a left side view when the windscreen 31 is at the lower limit position P1, FIG. 4 is a left side view when the windscreen 31 is at the upper limit position P2, and FIG. 5 is a right side view when the windscreen 31 is at the lower limit position P1. The windscreen 31 is supported by a screen support mechanism 35 so that its height can be adjusted relative to the vehicle body. 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 vertical middle part of the windscreen 31.

[0027] The windscreen 31 at the lower limit position P1 is inclined so as 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 front lower end (lower edge 31c) of the windscreen 31 at the lower limit position P1 is spaced upward 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 front lower end of the windscreen 31 at the lower limit position P1 is spaced toward the outside of the vehicle (upward and forward) from the front upper surface 22a of the front body cover 22. This allows a portion of the traveling wind to be introduced between the windscreen 31 and the front body cover 22. The rear upper end of the windscreen 31 at 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 upward at a steeper rearward angle than when it is at the lower limit position P1.

[0029] The front lower end of the windscreen 31 in the upper limit position P2 is moved rearward and upward more than when it is in the lower limit position. The front lower end of the windscreen 31 in the upper limit position P2 is spaced further outward (frontward and upward) from the vehicle than the front body cover 22 and the bracket 40. This makes it possible to introduce a portion 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. The rear upper end of the windscreen 31 in the upper limit position P2 is moved upward more than when it is in the lower limit position P1, further reducing the amount of traveling wind heading 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 of, for example, synthetic resin.

[0031] The bracket 40 comprises a bracket main body 40a which is arranged with 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 upper part of the bracket main body 40a toward the windscreen 31 and connects the base end 61a of the upper link member 61 so as to be rotatable relative to the upper end 61a via a pivot axis along the left-right direction, and a lower link connecting portion 43 which extends from the lower part of the bracket main body 40a toward the windscreen 31 and connects the base end 62a of the lower link member 62 so as to be rotatable relative to the lower end 62a via a pivot axis 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 ends 61a disposed on the outer side in the left-right direction of the rear of the bracket 40, a pair of left and right arm portions 61b extending forward and inward in the left-right direction from the left and right base ends 61a, and a pair of left and right tip portions 61c which 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 ends 61a on the same side while being appropriately inclined, bent, and curved.

[0033] The lower link member 62 includes a pair of left and right base ends 62a disposed on the left and right outer sides of the front part of the bracket 40, a pair of left and right arm parts 62b extending from the left and right base ends 62a at an incline forward and inward in the left and right direction, and a pair of left and right tip parts 62c which are the tip parts of the left and right arm parts 62b. The lower link member 62 is provided symmetrically with respect to the vehicle body left and right center line CL as an axis of symmetry. The left and right arm parts 62b extend forward and inward in the left and right direction from the left and right base ends 62a while being appropriately inclined, bent and curved. The front part of the bracket 40 is narrower in left and right width than the rear part of the bracket 40, and the lower link member 62 is provided to be 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 such upper and lower link members 61, 62, the windscreen 31 moves so that the rear-upward inclination 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 upper part of the holder main body 51 toward the vehicle body side and connects the tip end 61c of the upper link member 61 so as to be rotatable relative to the vehicle via a pivot axis that runs along the left-right direction, and a lower link connecting portion 53 which extends from the lower part of the holder main body 51 toward the vehicle body side and connects the tip end 62c of the lower link member 62 so as to be rotatable relative to the vehicle via a pivot axis that runs along the left-right direction.

[0035] Support arms 51a are formed at the four corners of the holder main body 51 on the windscreen 31 side, extending toward the rear surface of 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 shaft connecting the upper link connecting portion 42 of the bracket 40 and the base end portion 61a of the upper link member 61 is a shaft 54 ​​extending across the entire width of the screen support mechanism 35. A screen lock device 56 is arranged on one side (left side) of the shaft 54 ​​in the vehicle left-right direction, which allows the height of the windscreen 31 to be adjusted between an upper limit position and a lower limit position (can be fixed at any height). Line C1 in the figure indicates the central axis of the shaft 54. Caps 69L, 69R that are circular in side view 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 the operation lever 66, the link side gear 58, and the upper link member 61, which will be described later. A double nut that fixes the right end portion of the shaft 54 ​​is arranged inside the right cap 69R, which allows the meshing tolerance of the bracket side gear 57 and the link side gear 58, which will be described later, to be absorbed.

[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 advancing and retreating 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) in the left-right direction of the vehicle to engage the link side gear 58 and the bracket side gear 57.

[0038] At the axially opposing portions of the bracket side gear 57 and the link side gear 58, concave-convex shapes 57a, 58a including, for example, a plurality of gear teeth arranged in the circumferential direction of each gear 57, 58 are formed. The concaves and convexes of each concave-convex shape 57a, 58a are arranged at equal intervals in the circumferential direction of each gear 57, 58, and can mesh with each other every time the gears 57, 58 rotate relatively by a specified angle. The concaves and convexes of each concave-convex shape 57a, 58a change the axial height at the opposing portions of each gear 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, and the relative rotation of the bracket side gear 57 and the link side gear 58 is restricted. Tapered surfaces are formed on both circumferential sides of the gear teeth, which enables 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 a continuous curved surface. In this case, when the bracket side gear 57 and the link side gear 58 are rotated relative to each other as described later, the concave-convex shape 58a of the link side gear 58 easily rides on the concave-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 line 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 line B8 in Fig. 8(A). 7(A) and 8(A), the gear lock mechanism 59 includes an operator (operation lever 66) that is switched between a first operation position (gear lock position P3) and a second operation position (gear lock release position P4), and a pressing member 67 that is pressed to the other side (right side) in the vehicle left-right direction by a cam portion 66c on the base end side of the operation lever 66 when the operation lever 66 is in the gear lock position P3, pressing the link side gear 58 to the other side (bracket side gear 57 side) in the vehicle left-right direction, and that is released from the pressing to the other side in the vehicle left-right direction when the operation portion 65 is in the gear lock release position P4, releasing the pressing of the link side gear 58 to the other side in the vehicle left-right direction. In the drawings, reference numeral 66a denotes a lever main body of the operation lever 66 on which a user places his / her hand, and reference numeral 66b denotes a swing shaft of the operation 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 in which 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 respective uneven 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 if the operating portion 65 is operated to the gear lock release position P4 (gear lock release position), the concave and convex shapes 57a, 58a of the bracket side gear 57 and the link side gear 58 maintain a state in which they are meshed 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 bracket side gear 57 and the link side gear 58 are maintained in mesh with each other by the biasing force of the coil spring 68, so that even if a 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 adjustments to the height of the windscreen 31.

[0044] Furthermore, when a torque equal to or greater than a prescribed value acts on the link side gear 58 with the operating portion 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 displaces 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, and compared to a configuration in which the operating units 65 are provided on both the left and right sides and operated, the unlocking operation can be performed with one hand. The occupant can operate the operating unit 65 with his / her 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 about the shaft 54. At this time, the user can grip the handle 61d formed on the left arm portion 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, in turn, 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 coaxial with the shaft 54.

[0047] In particular, in the embodiment, even if the operation lever 66 is swung to the gear lock release position P4, the bracket side gear 57 and the link side gear 58 maintain a state of being meshed with each other due to the biasing force of the coil spring 68. As a result, the height of the windscreen 31 at that time is maintained by simply swinging the operation lever 66 to the gear lock release position P4. By applying a torque equal to or greater than a prescribed 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 turning radius than the cap 69L in a side view, it is easy to apply torque to the upper link member 61, and the height adjustment of the windscreen 31 can be facilitated.

[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 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, 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 by the link connection portion 42 of the bracket 40 so as not to rotate relative thereto; 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 by the base end portion 61a of the upper link member 61 so as not to rotate relative thereto, facing the bracket-side gear 57 in the axial direction and capable of advancing and retreating 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 pressing the link-side gear 58 inward in the vehicle left-right direction to move the link-side gear 58 and the link-side gear 58 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 the bracket side gear 57 and the link side gear 58. The axially opposing 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 operation 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 operation lever 66 is in the gear lock position P3 and releases the gear lock when the operation lever 66 is in the gear lock position P4. and a pressing member 67 that releases the pressure on the link side gear 58 inward 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 restriction portions (concave-convex 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 restriction portions (concave-convex 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 the upper and lower link members 61, 62, and the bracket side gear 57 and the link side gear 58, which cannot rotate relative to each other when pressed in the axial direction, are arranged on the base end 61a of the upper link member 61 on the bracket 40 side. The gear lock mechanism 59 arranged on one side in the left-right direction of the vehicle switches between pressing and releasing the link side gear 58 by the pressing member 67 by operating the operating lever 66. When the pressing member 67 is released, the link side gear 58 can move outward in the left-right direction of the vehicle, and the relative rotation of the bracket side gear 57 and the link side gear 58 is permitted. By arranging such gear lock mechanism 59 and the operating lever 66 together on one side in the left-right direction of the vehicle, it is possible to operate it with one hand by the user, and the height adjustment of the windscreen 31 can be easily performed. In addition, it is possible to reduce the size of the mechanism parts and the number of parts, and the entire device can be made lighter and more compact.

[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 recessed and protruding shapes 57a, 58a that mesh with each other 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 uneven shapes 57a, 58a as rotation regulating portions, the relative rotation of the bracket side gear 57 and the link side gear 58 can be reliably regulated by the pressure applied by the pressing member 67.

[0051] In the above windscreen device 30, a coil spring 68 is provided which is compressed between the pressing member 67 and the link side gear 58. 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 separated from the link side gear 58 by 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 due to a torque equal to or greater than a specified value, and the bracket side gear 57 and the link side gear 58 can rotate relative to each other. According to this configuration, the coil spring 68 biases the link side gear 58 inward in the left-right direction of the vehicle, so that the relative rotation between the bracket side gear 57 and the link side gear 58 is appropriately restricted even when the pressure from the pressure member 67 is released. On the other hand, when a torque equal to or greater than a prescribed value acts on the link side gear 58, the uneven shape 58a of the link side gear 58 rides up onto the uneven 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, and the link side gear 58 becomes rotatable while shifting the meshing of the uneven shapes 57a, 58a step by step. As a result, after the pressure from the pressure member 67 of the gear lock mechanism 59 on the link side gear 58 is released, the upper link member 61 can be swung with a predetermined knocking feeling relative to the bracket 40, and the height of the windscreen 31 can be easily adjusted. By elastically temporarily holding the screen height by the biasing force of the elastic member, the operating procedure can be simplified compared to a configuration in which the screen height is adjusted while 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 shapes, 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 knob that is pushed and pulled in the axial direction, a dial that rotates around an axis, or other operating elements. 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 vehicle 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 without departing from 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 engagement member) 57a, 58a Rotation restriction part, uneven shape 58 Link side gear (link side engagement 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 a vehicle body; a link member (61, 62) whose base end (61a, 62a) is supported by the bracket (40) so as to be vertically swingable and whose tip end (61c, 62c) supports the holder (50); a shaft (54) extending along the left-right direction of the vehicle and penetrating and connecting 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, 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 not to be rotatable relative to the bracket; a link-side engaging member (58) that is arranged coaxially with the shaft (54) and outboard of the bracket-side engaging member (57) in the vehicle left-right direction, that is supported by the base end (61 a) of the link member (61) so as not to be rotatable relative thereto, that faces the bracket-side engaging member (57) in the axial direction, and that is movable forward and backward in the axial direction; a lock mechanism (59) that is disposed outboard 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 in which they cannot rotate relative to each other, a rotation restricting portion (57a, 58a) capable of restricting relative rotation between the bracket side engaging member (57) and the link side engaging member (58) at each of the axially opposing portions of 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 in 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 in the unlock position (P4), When the operating element (66) is in the locked position (P3), the rotation restricting portions of the bracket side engaging member (57) and the link side engaging member (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), 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) enable the link side engaging member (58) to move outward in the left-right direction of the vehicle, thereby releasing the restriction on the relative rotation between the bracket side engaging member (57) and the link side engaging member (58).

2. 2. The windscreen device according to claim 1, wherein 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 the rotation restricting portion (57a, 58a).

3. an elastic member (68) that is compressed between the pressing member (67) and the link side engaging member (58); 3. The windscreen device according to claim 2, wherein, when the operating element (66) is in the unlocked position (P4), the concave and convex shapes (57a, 58a) of the bracket side engagement member (57) and the link side engagement member (58) are brought into meshing engagement with each other due to the biasing force of the elastic member (68), and the pressing member (67) is spaced from the link side engagement member (58) by the biasing force of the elastic member (68), and in this state, the link side engagement 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 engagement member (57) and the link side engagement member (58) can rotate relative to each other.

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