Windshield device

Abstract

Provided is a windshield device provided with: a windshield; a bracket that supports the windshield; a bracket that supports the bracket together with the windshield so as to be capable of moving up and down, and that is fixed to a vehicle body; and a shaft extending in the left-right direction of the vehicle and connecting the first connecting portion of the bracket and the second connecting portion of the bracket by penetrating in the left-right direction of the vehicle, one of the two connecting portions being a shaft holding portion and the other being a sliding groove forming portion, the shaft holding portion being slid along the sliding groove, the height of the windshield can be adjusted together with the bracket, a fitting member is disposed in the slide groove forming portion, fitting recesses are formed at a plurality of locations spaced apart from each other in the groove length direction of the slide groove, the fitting member and the fitting recesses constitute a lock operation portion, and the lock operation portion switches between a locked state and an unlocked state. The shaft is provided with an operation part, the operation part can be switched between a locking state and an unlocking state, and the operation part is only arranged on one side of the shaft in the left-right direction of the vehicle.

Description

Technical Field

[0001] The present invention relates to a windshield device.

[0002] This application claims priority based on Japanese Patent Application No. 2024-042969 filed in Japan on March 19, 2024, the contents of which are incorporated herein by reference. Background Art

[0003] Conventionally, there is known a windshield device including a windshield that stands forward of a passenger seat and a windshield support mechanism that can manually raise and lower the windshield (for example, see Japanese Patent Application Laid-Open No. 2023-007195 and Japanese Patent No. 7194262). Summary of the Invention

[0004] However, in the conventional structure described above, the operating units for releasing the windshield height adjustment lock are located on the left and right sides of the windshield support mechanism. To release the windshield height adjustment lock, the user must simultaneously pull the operating units in the left and right directions. Therefore, the user must use both hands to adjust the windshield height. However, a structure that simplifies windshield height adjustment is desired.

[0005] An object of the present invention is to provide a windshield device in which the height of the windshield can be adjusted with one hand.

[0006] In order to achieve the above-mentioned object, a windshield device according to an aspect of the present invention adopts the following structure.

[0007] (1) The present invention is directed to a windshield device 30 comprising: a windshield 31; a bracket 50 supporting the windshield 31; a bracket 40 supporting the bracket 50 and the windshield 31 so as to be movable up and down, and the bracket 40 being fixed to the vehicle body; and a shaft 53 extending in the left-right direction of the vehicle and penetrating and connecting first connecting portions 54L, 54R of the bracket 50 and second connecting portions 42L, 42R of the bracket 40 in the left-right direction of the vehicle. One of the first and second connecting portions 42R is a shaft holding portion 54L, 54R that holds the shaft 53 so as not to move relative to each other when viewed from the left and right directions of the vehicle. The other of the first connecting portion 54L, 54R and the second connecting portion 42L, 42R is a sliding groove forming portion 42L, 42R that forms a sliding groove 42a extending in the vertical direction of the vehicle and enables the shaft holding portion 54L, 54R to slide along the groove length direction of the sliding groove 42a. By sliding the shaft holding portion 54L, 54R along the sliding groove 42a, the windshield can be adjusted together with the bracket 50. 31, the sliding groove forming parts 42L, 42R are provided with fitting members 46L, 46R supported by the shaft 53 and capable of moving integrally with the shaft 53 in the left-right direction of the vehicle, and fitting recesses 45L, 45R are formed at multiple locations spaced apart in the groove length direction of the sliding groove 42a to partially widen the groove width so that the fitting members 46L, 46R can be fitted. The fitting members 46L, 46R and the fitting recesses 45L, 45R constitute locking working parts 47L, 47R, and the locking working parts 47L, 47R switch to keep the shaft in the right and left directions. The holding parts 54L and 54R are in a locked state S1 in which they cannot slide relative to the sliding groove forming parts 42L and 42R, and are in an unlocked state S2 in which the shaft holding parts 54L and 54R can slide relative to the sliding groove forming parts 42L and 42R. An operating part 65 is provided on the shaft 53. The operating part 65 moves the shaft 53 and the interlocking components 46L and 46R in the left and right directions of the vehicle, and can switch the locked state S1 and the unlocked state S2 of the locking working parts 47L and 47R. The operating part 65 is only provided on one side of the shaft 53 in the left and right directions of the vehicle.

[0008] According to the above-mentioned solution (1), the operating unit for switching between locking and unlocking the locking operating unit is provided only on one side in the vehicle's left-right direction of the shaft connecting the bracket supporting the windshield and the bracket fixed to the vehicle body. This allows the passenger (user) to adjust the height of the windshield with one hand. Therefore, compared with a case where the locking and unlocking of the locking operating unit are switched using operating units on both the left and right sides, the height adjustment operation can be facilitated and the number of parts can be reduced.

[0009] (2) In the above-mentioned embodiment (1), the locking operating parts 47L and 47R may be provided as a pair on the left and right sides, and the states of the pair of locking operating parts 47L and 47R may be switched simultaneously by the operating parts 65 on the left and right sides.

[0010] According to the above-mentioned scheme (2), the locking and unlocking switching of the left and right pair of locking working parts are simultaneously performed by operating the operating part on one side of the vehicle in the left and right directions, thereby stably adjusting the height of the windshield through the left and right pair of locking working parts, and the height of the windshield can be adjusted by single-handed operation.

[0011] (3) In the above-mentioned scheme (1), the locking working parts 47L and 47R may move the interlocking members 46L and 46R toward the other side in the left-right direction of the vehicle to form a locked state S1, and move the interlocking members 46L and 46R toward one side in the left-right direction of the vehicle to form an unlocked state S2, and the interlocking members 46L and 46R may be urged toward the other side in the left-right direction of the vehicle by the elastic member 57.

[0012] According to the above-mentioned scheme (3), the engaging member of the locking working part is forced by the elastic member toward the other side (locking side) in the left-right direction of the vehicle, thereby operating the operating part toward one side (unlocking side) in the left-right direction of the vehicle to adjust the height of the windshield. The locking working part can be returned to the locked state simply by releasing the operating part, which makes it easier to adjust the height of the windshield.

[0013] (4) In the above-mentioned scheme (1), at least one of the first fitting surface 46b of the fitting members 46L, 46R that fits with the fitting recesses 45L, 45R and the second fitting surface 45b of the fitting recesses 45L, 45R that fits with the fitting members 46L, 46R may be formed as a tapered surface 45b, 46b whose cross-sectional shape becomes smaller as it approaches the other side in the left-right direction of the vehicle.

[0014] According to the above-mentioned solution (4), the mating surface of at least one of the mating member and the mating recess is formed into a tapered surface. Therefore, even if the relative positions of the mating member and the mating recess are slightly deviated, the tapered surface can guide the mating member and the mating recess to the predetermined relative position. Furthermore, when a force is applied to the mating member in the mating direction, the wedge effect of the tapered surface allows the mating member and the mating recess to be securely mated without loosening, even with a limited amount of force. Therefore, the height adjustment of the windshield can be made easier.

[0015] (5) In the above aspect (1), the operating portion 65 may include a grip portion 68 extending rearward of the shaft 53 when viewed in the axial direction of the shaft 53 .

[0016] According to the above-mentioned solution (5), the operating portion has a grip portion extending axially rearward, thereby making it easy to visually confirm the grip portion from the rear of the operating portion (passenger side) and easy to reach the grip portion by hand, thereby improving the operability of the operating portion.

[0017] (6) In the above aspect (1), the operating portion 65 may include a grip portion 68 offset outward in the vehicle left-right direction relative to a base portion 66 to which the end portion of the shaft 53 is fixed.

[0018] According to the above-mentioned scheme (6), the operating part has a gripping part that is offset to the outside of the left-right direction of the vehicle relative to the end of the shaft. Therefore, regardless of the left-right position of the end of the shaft in the left-right direction of the vehicle, it is easy to ensure a gap for the hand to enter the inside of the left-right direction of the gripping part, which can improve the operability of the operating part.

[0019] (7) In the above aspect (1), the lock operating parts 47L and 47R may include a rotation restriction structure 48 that restricts the rotation of the center of the shaft 53 of the operating part 65 in the locked state S1.

[0020] According to the above-mentioned solution (7), the locking operating portion includes a rotation limiting structure that limits the rotation angle of the operating portion in the locked state. This allows the rotation angle of the operating portion after the windshield height is adjusted (in the locked state) to coincide with a predetermined desired angle. Therefore, the operating portion can be maintained at an angle that is easy to grasp after the windshield height is adjusted.

[0021] According to the aspects of the present invention, it is possible to provide a windshield device capable of adjusting the height of a windshield with one hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a left side view of the motorcycle in the embodiment of the present invention.

[0023] Figure 2 It is a front view (front view) of the periphery of the windshield of the above-mentioned two-wheeled motor vehicle.

[0024] Figure 3 It is a left side view of the periphery of the aforementioned windshield.

[0025] Figure 4 It is a left side view when the above-mentioned windshield is in the lower limit position.

[0026] Figure 5 It is a left side view when the windshield is in the upper limit position.

[0027] Figure 6 (A) is Figure 4 VI-VI sectional view, Figure 6 (B) is Figure 6BB cross-sectional view of (A).

[0028] Figure 7 is with Figure 6 (A) The same cross-sectional view.

[0029] Figure 8 It is a three-dimensional diagram of the windshield support mechanism.

[0030] Figure 9 This is a left side view showing a loosening removal structure of an operating portion of a windshield support mechanism in a rotational direction.

[0031] Explanation of symbols:

[0032] 1 Motorized two-wheeled vehicle (straddle-type vehicle)

[0033] 30 Windshield device

[0034] 31 Windshield

[0035] 40 brackets

[0036] 42a Slide slot

[0037] 42L, 42R second connecting portion, sliding groove forming portion

[0038] 45b second fitting surface, tapered surface

[0039] 45L, 45R fitting recess

[0040] 46b first fitting surface, tapered surface

[0041] 46L, 46R fitting components

[0042] 47L, 47R locking working part

[0043] 48 Rotation restriction structure

[0044] 50 bracket

[0045] 53 axis

[0046] 54L, 54R first connecting part, shaft holding part

[0047] 57 Coil spring (elastic member)

[0048] 65 Operation Department

[0049] 66 base

[0050] 68 grip

[0051] S1 Locked state

[0052] S2 Lock release status DETAILED DESCRIPTION

[0053] Embodiments of the present invention are described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the directions such as front, rear, left, and right in the following description are the same as those in the vehicle described below. Furthermore, in the drawings used in the following description, arrows FR indicating the front of the vehicle, arrows LH indicating the left of the vehicle, arrows UP indicating the top of the vehicle, and lines CL indicating the left-right center of the vehicle body are shown at appropriate locations.

[0054] <Vehicle as a whole>

[0055] Figure 1 A scooter-type motorcycle (straddle-type vehicle) 1 is shown as an example of the straddle-type vehicle according to the embodiment.

[0056] The motorcycle 1 includes a front wheel 3 serving as a steerable wheel and a rear wheel 4 serving as a drive wheel. The front wheel 3 is supported by a front fork 3a and can be steered via 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 device that transmits the output of the prime mover to the rear wheel 4.

[0057] The steering system components, including the handlebars 2, front fork 3a, and front wheel 3, are steerably supported by the head pipe 11a at the front end of the frame 11. The front portion of the swing-type power unit 5 is supported in a vertically swingable manner at the front-to-back intermediate portion of the frame 11. The rear portion of the power unit 5 is supported at the rear portion of the frame 11 via the rear cushion 4a. It should be noted that the "middle" in this embodiment is not limited to the "center."

[0058] In the embodiment, the telescopic front fork 3a is exemplified as the front wheel suspension device of the motorcycle 1, but the present invention is not limited to this structure. For example, the front wheel suspension device may be a link type using a swing arm or other types.

[0059] The motorcycle 1 is not limited to the above-described unit swing type vehicle, and may be a vehicle in which a prime mover is fixedly mounted on the vehicle frame 11 .

[0060] A seat 15 for a passenger is located behind the handlebars 2. A low floor portion 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 portion 6, allowing the passenger to easily straddle the vehicle body. The low floor portion 6 includes a pair of left and right footboards 7, on which the driver seated in the seat 15 places their left and right feet, and a center tunnel 7a extending in the vehicle's longitudinal direction between the left and right footboards 7.

[0061] <Frame 11>

[0062] Reference Figure 1The frame 11 includes: a head pipe 11a; a down frame 11b extending rearward and downward 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; an intermediate frame 11e erected 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 intermediate frame 11e and extending rearward and upward from the front end.

[0063] The upper end of the center frame 11d is connected to the lower front side of the rear frame 11f. The down frame 11b, lower frame 11c, and center frame 11d are formed from a single, continuous frame member connected by a bend. The down frame 11b, lower frame 11c, center frame 11d, and intermediate frame 11e and rear frame 11f are arranged on the left and right sides of the vehicle body, forming a pair.

[0064] <Body cover 21>

[0065] The vehicle frame 11 is surrounded by a vehicle body cover 21. The vehicle body cover 21 includes left and right floor boards 7 and a center tunnel 7a; a front vehicle body cover 22 connected to the front of the left and right floor boards 7 and the center tunnel 7a; and a rear vehicle body cover 23 connected to the rear of the left and right floor boards 7 and the center tunnel 7a.

[0066] An article storage box (not shown) is disposed inside the rear vehicle cover 23. The article storage box is in the shape of a container that opens upward. The upper opening of the article storage box can be opened and closed by rotating the seat 15 via a hinge (not shown) at the front end.

[0067] Refer to Figure 3 A windshield 31 is disposed above and in front of the front body cover 22, extending forward of the riding position of the motorcycle 1. The windshield 31 is supported by a vehicle body including the front body cover 22 and a cover support frame (not shown) via a windshield support mechanism 35. The windshield 31 (windshield main body) and the windshield support mechanism 35 are included in a windshield device 30 of the motorcycle 1.

[0068] <Windshield Device 30>

[0069] Figure 2 This is a main surface view (front view) of the periphery of the windshield 31. Figure 3 It is a left side view of the periphery of the windshield 31 .

[0070] Reference Figures 1 to 3The windshield 31 extends in a manner extending upward and rearward from the lower end side in front of the rider's seat for steering the motorcycle 1. The windshield 31 extends obliquely upward and rearward from the lower end side in a side view. The windshield 31 can be raised and lowered by manually operating a windshield support mechanism 35 (movable mechanism).

[0071] The lower portion of the windshield 31 is fixed to a bracket 50 of the windshield support mechanism 35. Bracket 50 is supported vertically by a bracket 40, which is a bracket of the windshield support mechanism 35 that is fixed to the vehicle body. The windshield support mechanism 35 includes an operating unit 65 on the left side of the vehicle for manual operation by the driver (passenger, user). The windshield support mechanism 35 can be raised and lowered by the user manually operating the operating unit 65.

[0072] Here, refer to Figure 1 A meter device 8 is disposed above the front cover 22 and in front of the handlebars 2. The meter device 8 functions as an instrument that displays vehicle speed and engine speed, for example. The meter device 8 is supported, for example, by the front cover 22 and a cover support frame (not shown), separate from the steering system components. The meter device 8 comprises, for example, a display device such as a liquid crystal display that displays various information on the motorcycle 1. The meter device 8 is disposed, for example, with its rectangular display screen facing rearward (driver's side).

[0073] The instrument device 8 is supported by an instrument support portion 41 integrally formed at the rear of the bracket 40 of the windshield support mechanism 35. An instrument visor 41a is integrally formed at the top of the instrument support portion 41. The instrument visor 41a extends rearward from the upper edge and upper portions of the left and right side edges of the instrument device 8, covering the area above the display screen. The instrument visor 41a functions as a canopy, preventing external light from reflecting off the display screen and obscuring its visibility.

[0074] When the meter support structure including the meter support portion 41 and the meter visor 41a and the windshield support structure (bracket 40) are separate components, a structure is required to connect the two structures. In contrast, by integrally forming the meter support structure with the bracket 40 of the windshield support mechanism 35 as in the embodiment, this eliminates the need for a structure to connect the meter support structure and the windshield support structure, allowing the two structures to be arranged compactly.

[0075] <Windshield 31>

[0076] Reference Figure 2 、 Figure 3The windshield 31 is formed into a plate-like shape, for example, from a transparent resin material. The windshield 31 has a gently bulging shape that bulges forward and upward, in accordance with the vehicle's appearance. The windshield 31 controls the flow of traveling wind toward the driver's side when the motorcycle 1 is traveling forward.

[0077] Reference Figure 2 The windshield 31 has an upper edge 31a extending generally horizontally in a front-to-back direction; left and right side edges 31b extending downward from the left and right ends of the upper edge 31a; and a lower edge 31c extending between the lower ends of the left and right side edges 31b. The left and right side edges 31b each form a shallow V-shape convex outward in the left-right direction of the vehicle in a front view. The lower edge 31c forms a curved shape convex downward in a front view. The windshield 31 is formed bilaterally symmetrically about the vehicle body's left-right centerline CL as its axis of symmetry.

[0078] Figure 4 It is a left side view when the windshield 31 is at the lower limit position P1. Figure 5 It is a left side view when the windshield 31 is at the upper limit position P2.

[0079] The windshield 31 is supported by the windshield support mechanism 35 so as to be able to adjust its height relative to the vehicle body. Figure 4 The lower limit position P1 shown is Figure 5 It moves bidirectionally between the upper limit position P2 shown.

[0080] In a side view, the windshield 31 at the lower limit position P1 is arranged so as to be inclined along the front upper surface 22a of the front vehicle body cover 22, which is inclined so as to be lower in the front and higher in the rear. The front lower end portion (lower edge portion 31c) of the windshield 31 at the lower limit position P1 is separated from the upper edge 24a of the headlight 24 to the rear and upward (see FIG. Figure 2 This prevents the windshield 31 from affecting the light distribution of the headlights 24. When in the lower limit position P1, the front lower end of the windshield 31 is spaced further outward (front and upward) 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 windshield 31 and the front body cover 22. When in the lower limit position P1, the rear upper end of the windshield 31 is located above the instrument visor 41a.

[0081] The windshield 31 in the upper limit position P2 is moved rearward and upward with its front lower end along the front upper surface 22a of the front vehicle body cover 22 compared to when in the lower limit position P1, and is arranged upright with a steeper incline than when in the lower limit position P1.

[0082] When the windshield 31 is in the upper limit position P2, the front lower end of the windshield 31 is positioned upward until the front lower portion of the bracket 40 of the windshield support mechanism 35 is exposed. When the windshield 31 is in the upper limit position P2, the front lower end is spaced further outward (front and upward) from the front body cover 22 and the bracket 40. This allows a portion of the traveling wind to be introduced between the windshield 31 and the front body cover 22, similar to when the windshield 31 is in the lower limit position P1. When the windshield 31 is in the upper limit position P2, the rear upper end is moved further upward than when it is in the lower limit position P1, further reducing the amount of traveling wind directed toward the driver's side.

[0083] Figure 8 It is a perspective view of the windshield support mechanism 35 .

[0084] Reference Figure 3 、 Figure 8 On the left and right sides of the vertically intermediate portion of the windshield 31, fastening recesses 32 are formed for fastening and securing the four support arms 51a of the bracket 50. Each fastening recess 32 forms a recess in the corresponding portion of the windshield 31, recessed toward the vehicle interior (rearward and downward) in the direction normal to the outer surface of the windshield 31. Each fastening recess 32 is circular when viewed from the normal direction, with a bolt insertion hole formed in its center. Each fastening recess 32 receives the head of a fixing bolt B1 screwed into the support arms 51a of the bracket 50.

[0085] Refer to Figure 2 A traveling air intake portion 33, shaped like an inverted trapezoid, is formed at the lower portion of the windshield 31 (below the vertical center) in the vehicle's left-right center when viewed from the front-back direction. The traveling air intake portion 33 has an inclined surface 33a that slopes so that its depth increases toward the vehicle's inner side (rear and lower side) as it approaches the upper end of the inverted trapezoid. A horizontally elongated air guide port 33b is formed at the upper end, extending through the vehicle in the front-back direction. The air guide port 33b is positioned so as to overlap with an air guide path 51b (described later) on the vehicle's left-right inner side of the bracket 50 when viewed from the front-back direction.

[0086] <Windshield Support Mechanism 35>

[0087] Figure 6 (A) is Figure 4 VI-VI sectional view.

[0088] Reference Figure 4 、 Figure 6 (A) Figure 8 The windshield support mechanism 35 includes a bracket 40 fixed to the vehicle body, a bracket 50 movably supported by the bracket 40, and the windshield 31 attached to the bracket 50. The bracket 40 and the bracket 50 are each formed of, for example, synthetic resin.

[0089] The bracket 50 comprises a plate-shaped bracket body 51 positioned below and behind the windshield 31 (on the inner surface, vehicle body side); and a pair of left and right arms 52 extending from the upper portion of the bracket body 51 on the vehicle body side toward the rear and below. The bracket body 51 is tilted, with the front portion lower than the front and the rear portion higher, so as to follow the inner surface (rear surface) of the windshield 31 when viewed from the side. Left and right shaft retaining portions 54L and 54R (first connecting portions) are formed at the front ends (rear lower ends) of the left and right arms 52. These retain the left and right side portions of a shaft 53 extending in the vehicle left-right direction and pass through them in the vehicle left-right direction.

[0090] Reference Figure 6 (A) The left and right shaft retaining portions 54L and 54R respectively retain the shaft 53 so that it cannot move relative to each other when viewed from the left and right sides of the vehicle. The left and right shaft retaining portions 54L and 54R respectively allow axial movement and rotation of the shaft 53. The left and right shaft retaining portions 54L and 54R respectively include: a bottomed cylindrical cup portion 55 open to the other side (the right side) in the left and right directions of the vehicle; spring seats 56L and 56R respectively arranged to close the open portion of the cup portion 55; and a coil spring 57 compressed between the bottom of the cup portion 55 and the spring seats 56L and 56R.

[0091] Each spring seat 56L, 56R has an insertion hole 56a through which the shaft 53 passes, and an elastic piece 56b (locking claw) extending obliquely from the inner circumference of the insertion hole 56a toward the other side (right side) in the vehicle's left-right direction. The spring seats 56L, 56R engage with a notch 53a partially formed on the outer circumference of the shaft 53 by inserting the elastic piece 56b. This restricts rightward movement of the spring seats 56L, 56R relative to the shaft 53. The force of the coil spring 57 acts rightward on the spring seats 56L, 56R, urging both the shaft 53 and the spring seats 56L, 56R rightward.

[0092] Reference Figure 4 、 Figure 8 Support arms 51a are formed at each of the four corners of the rectangular bracket body 51, extending toward the inner surface (inner side) of the windshield 31. Each support arm 51a extends obliquely forward and outward from the four corners of the bracket body 51. An air guide 51b is formed on the front upper surface of the bracket body 51, recessed rearward and downward, between the left and right support arms 51a.

[0093] The air guide passage 51b faces the air guide port 33b of the windshield 31. The air guide passage 51b straightens and guides the traveling airflow introduced from the air guide port 33b to the rearward and upward sides of the windshield 31. The air guide passage 51b opens toward the front lower end of the bracket 50. The air guide passage 51b straightens and guides a portion of the traveling airflow introduced from the front lower end of the windshield 31 between the windshield 31 and the front vehicle cover 22 toward the rearward and upward sides.

[0094] The front end of the bracket 50 is connected to the front end of the cradle 40 via a link member 61. One end 61a of the link member 61 is rotatably connected to a link connection portion 51c extending forward and downward from the front end of the bracket body 51 via a shaft extending in the vehicle left-right direction. The other end 61b of the link member 61 is rotatably connected to the front end of the cradle 40 via a shaft extending in the vehicle left-right direction.

[0095] When the windshield 31 is at the lower limit position P1, the link member 61 is arranged so as to extend from the bracket 40 side toward the front in a substantially horizontal manner (more specifically, slightly tilted with the front higher and the rear lower). As the windshield 31 rises from the lower limit position P1 toward the upper limit position P2, the link member 61 rotates with the other end 61b side as the center, so that the one end 61a side follows the upper movement of the windshield 31. When the windshield 31 reaches the upper limit position P2, the link member 61 is arranged so as to extend from the bracket 40 side toward the upper substantially vertical manner (see FIG. Figure 5 ).

[0096] The bracket 40 includes: a base portion (not shown) fixed to at least one of the front vehicle body cover 22 and a support stay (not shown), wherein the support stay is fixed to the vehicle frame 11 on the inner side of the front vehicle body cover 22; and a pair of left and right sliding groove forming portions 42L, 42R (second connecting portion) extending obliquely toward the rear and upward from the left and right sides of the base portion when viewed from the side, and supporting the bracket 50 so as to be able to slide.

[0097] Refer to Figure 6 (A) The left and right sliding groove forming portions 42L and 42R are formed symmetrically with the vehicle left-right center line CL as the axis of symmetry. The left and right sliding groove forming portions 42L and 42R are formed into an arc shape that bulges toward the front and upper side when viewed from the side. The left and right sliding groove forming portions 42L and 42R are formed with sliding grooves 42a that extend in an inclined and curved manner along the left and right sliding groove forming portions 42L and 42R when viewed from the side. The sliding grooves 42a penetrate the corresponding sliding groove forming portions in the vehicle left-right direction over their entire length. The sliding grooves 42a are inclined and curved so that they are located further to the rear as they move upwards when viewed from the side, but extend in the vertical direction from one end to the other end of the groove length direction without turning back in the vertical direction.

[0098] The left and right sliding groove forming portions 42L and 42R respectively connect the left and right shaft retaining portions 54L and 54R of the bracket 50 via the left and right side portions of the shaft 53. The left and right sliding groove forming portions 42L and 42R respectively enable the left and right shaft retaining portions 54L and 54R of the bracket 50 to slide along the longitudinal direction of the sliding groove 42a. By sliding the left and right shaft retaining portions 54L and 54R vertically along the left and right sliding grooves 42a, the windshield 31 can be raised and lowered together with the bracket 50 (the height can be adjusted).

[0099] The left and right sliding groove forming portions 42L and 42R form sliding grooves 42a on the inner sidewall 43 located on the inner side in the vehicle's left-right direction. The inner sidewall 43 has an outer shape slightly larger than the sliding groove 42a when viewed from the side. An outer peripheral wall 43a extends from the outer peripheral edge of the inner sidewall 43 toward the outer sidewall of the corresponding sliding groove forming portion, located on the vehicle's left-right direction. A portion of the locking operating portions 47L and 47R, described later, is housed within the recessed space 43b enclosed by the outer peripheral wall 43a and the inner sidewall 43. Left and right guide walls 44L and 44R are formed on the vehicle's left-right direction outer side of the inner sidewall 43, extending from the outer peripheral edge of the sliding groove 42a's shape when viewed from the side toward the vehicle's left-right direction outward (within the recessed space 43b).

[0100] In side view, fitting recesses 45L and 45R are formed at multiple locations spaced apart along the longitudinal direction of the sliding groove 42a in the left and right guide walls 44L and 44R, respectively, to partially widen the width of the sliding groove 42a. Each fitting recess 45L and 45R forms a space wider than the width of the sliding groove 42a in the longitudinal direction of the sliding groove 42a. The fitting recesses 45L of the left sliding groove forming portion 42L allow the left fitting member 46L to fit from the left (outward in the vehicle's left-right direction), while the fitting recesses 45R of the right sliding groove forming portion 42R allow the right fitting member 46R to fit from the left (inward in the vehicle's left-right direction).

[0101] A pair of left and right fitting members 46L and 46R are provided in the left and right slide groove forming portions 42L and 42R, respectively. The fitting members are supported by left and right side portions of the shaft 53 and are movable integrally with the shaft 53 in the vehicle left-right direction.

[0102] The left engaging member 46L is arranged on the left side (outside in the left and right directions of the vehicle) of the inner wall 43 in the concave space 43b of the left sliding groove forming portion 42L, and can be engaged with and disengaged from the left side (outside in the left and right directions of the vehicle) relative to the multiple engaging recesses 45L formed in the left guide wall 44L.

[0103] The right fitting member 46R is arranged on the left side (inward in the vehicle left-right direction) of the inner wall 43 of the right slide groove forming portion 42R, and can be fitted into and disengaged from the left side (inward in the vehicle left-right direction) relative to the multiple fitting recesses 45R formed in the right guide wall 44R.

[0104] The combination of the left fitting member 46L and the left fitting recess 45L, and the combination of the right fitting member 46R and the right fitting recess 45R constitute a pair of left and right locking operating parts 47L and 47R. The left and right locking operating parts 47L and 47R can switch between a locked state S1 in which the shaft holding part on the same side is engaged with the left and right sliding groove forming parts 42L and 42R and cannot slide, and an unlocked state S2 in which the shaft holding part on the same side can slide relative to the left and right sliding groove forming parts 42L and 42R (see FIG. Figure 7 ).

[0105] The shaft 53 is a steel member having a circular cross-section, extending across the entire left and right width of the windshield support mechanism 35. The left and right sides of the shaft 53 extend through the left and right shaft retaining portions 54L and 54R, and the left and right slide groove forming portions 42L and 42R, respectively. The shaft 53 connects the shaft retaining portions and the slide groove forming portions on the left and right sides of the windshield support mechanism 35 so that they can rotate relative to each other about the shaft 53.

[0106] The left side of the shaft 53 extends through the shaft retaining portion 54L of the left arm 52 and projects leftward. It then passes through a predetermined position in the longitudinal direction of the sliding groove 42a of the left sliding groove forming portion 42L and projects further leftward. The left side of the shaft 53 extends through the left fitting member 46L within the recessed space 43b of the left sliding groove forming portion 42L and is then inserted into the operating portion 65, which is located on the vehicle's left-right outer side of the left sliding groove forming portion 42L. The left end of the shaft 53 is, for example, a threaded shaft with threads formed therein, and the operating portion 65 is secured to this left end using a fastening structure such as a nut. In the embodiment, the left fitting member 46L is integrated with the vehicle's left-right inner side of the operating portion 65, enabling the operating portion 65, the left fitting member 46L, and the shaft 53 to move integrally in the vehicle's left-right direction. It should be noted that the operating portion 65 and the left fitting member 46L may alternatively be separate components.

[0107] The right side of the shaft 53 extends through the shaft retaining portion 54R of the right arm 52 and projects rightward. It then passes through a predetermined position in the longitudinal direction of the sliding groove 42a of the right sliding groove forming portion 42R and projects further rightward. The right side of the shaft 53 extends through the right fitting member 46R, which is located to the left (inward in the vehicle's left-right direction) of the inner sidewall 43 of the right sliding groove forming portion 42R. The right guide wall 44R extends to near the right end of the recessed space 43b of the right sliding groove forming portion 42R. The right end portion of the shaft 53 extends to near the right end of the right guide wall 44R (specifically, between the right end of the right guide wall 44R and the right end of the recessed space 43b).

[0108] In the embodiment, the right fitting member 46R is integrated with the right side of the right spring seat 56R, and the right fitting member 46R is biased rightward by the right coil spring 57. When the operating portion 65 and the shaft 53 move leftward, the right spring seat 56R and the right fitting member 46R overcome the biasing force of the right coil spring 57 and are able to move leftward. It should be noted that the right spring seat 56R and the right fitting member 46R may also be separate components.

[0109] An operating portion 65 is fixed to the end portion (the left end portion in the embodiment) on one side of the shaft 53 in the left-right direction of the vehicle. The operating portion 65 is only provided on the left side of the shaft 53 and is not provided on the right side of the shaft 53. The operating portion 65 and the shaft 53 can be moved in the axial direction (the left-right direction of the vehicle) to one side (the left side) in the left-right direction of the vehicle by a predetermined amount. By operating the operating portion 65 and releasing it, the shaft 53 and the left and right interlocking members 46L, 46R can be moved in the left-right direction of the vehicle, and by this movement, the locked state S1 and the unlocked state S2 of the left and right locking working parts 47L, 47R can be switched simultaneously (refer to Figure 7 ). The details of the operation unit 65 will be described later.

[0110] Figure 7 is with Figure 6 The same cross-sectional view as in FIG. 1 (A) shows the unlocked state S2 of the left and right locking actuating portions 47L and 47R.

[0111] Reference Figure 6 In (A), the left and right locking operating parts 47L and 47R move the left and right fitting members 46L and 46R to the other side in the vehicle left-right direction (the right side, the side of the shaft 53 opposite to the operating part 65), thereby respectively entering the locked state S1.

[0112] Reference Figure 7 The left and right locking operating parts 47L and 47R move the left and right fitting members 46L and 46R to one side in the vehicle left-right direction (the left side, the operating part 65 side of the shaft 53), thereby respectively entering the unlocked state S2.

[0113] The shaft 53 and the left and right fitting members 46L and 46R respectively bias the left and right shaft holding portions 54L and 54R to the right via the coil springs 57. Therefore, the operating portion 65 is pulled to the left against the biasing force of the left and right coil springs 57.

[0114] When adjusting the height of the windshield 31, the user first pulls the operating portion 65 on the left side of the shaft 53 to the left to release the locked state S1 of the left and right locking operating portions 47L and 47R. In the embodiment, by operating the operating portion 65 provided on one side of the shaft 53 in the vehicle's left-right direction, the locked state S1 of the left and right locking operating portions 47L and 47R can be released simultaneously. This makes the unlocking operation of the left and right locking operating portions 47L and 47R easier than a configuration in which operating portions are provided on both sides. The occupant can usually operate the operating portion 65 with their left hand while maintaining control of the brake lever supported on the right side of the handlebar 2.

[0115] The user pulls the operating portion 65 leftward, pulling the shaft 53 and the left and right fitting members 46L, 46R along with the operating portion 65 leftward, maintaining the unlocked state S2. The operating portion 65, shaft 53, and left and right fitting members 46L, 46R slide along the left and right sliding grooves 42a. Consequently, the left and right shaft retaining portions 54L, 54R, which coaxially hold the shaft 53, slide along the left and right sliding grooves 42a, causing the upper portion of the bracket 50 and the upper and lower intermediate portions of the windshield 31 to move along the left and right sliding grooves 42a. At this time, the lower portion of the bracket 50 and the lower portion of the windshield 31 move along the rotational trajectory of the link member 61, causing the bracket 50 and windshield 31 to move vertically as a whole, accompanied by tilting movement.

[0116] When the windshield 31 reaches the desired height, if the user releases the leftward pull on the operating portion 65, the left and right engaging members 46L, 46R move rightward due to the biasing force of the left and right coil springs 57. At this point, when the left and right engaging members 46L, 46R overlap with either engaging recess when viewed from the side, they engage with the corresponding engaging recess. This returns the left and right locking operating portions 47L, 47R to the locked state S1, securing the windshield 31 at the desired height. This completes the windshield height adjustment. This series of actions, performed by operating the operating portion 65 located on the left and right sides of the shaft 53, simplifies windshield height adjustment.

[0117] Here, the engagement structure between the notch 53a of the shaft 53 and the spring seats 56L, 56R restricts rightward movement of the spring seats 56L, 56R relative to the shaft 53, while allowing a predetermined amount of leftward movement of the spring seats 56L, 56R relative to the shaft 53. Therefore, even if, for example, the right fitting member 46R of the left and right locking portions 47L, 47R first engages with the fitting recess 45R, the shaft 53 and the left fitting member 46L can then be moved further rightward relative to the right spring seat 56R, allowing the left fitting member 46L to engage. Thus, even if the locked positions of the left and right locking portions 47L, 47R deviate, the left and right locking portions 47L, 47R can be reliably brought into the locked state S1.

[0118] Figure 6 (B) is Figure 6 BB cross-sectional view of (A).

[0119] Reference Figure 6 (A) Figure 6 In the embodiment (B), at least one of the left and right locking operating portions 47L and 47R (in the embodiment, both the left and right locking operating portions 47L and 47R) includes a rotation restriction structure 48 that restricts rotation of the operating portion 65 about the axis 53 in the locked state S1. The rotation restriction structure 48 is implemented by the cross-sectional shape of the fitting members 46L and 46R and the fitting recesses 45L and 45R that is orthogonal to the axial direction of the axis 53.

[0120] The rotation limiting structure 48 of the embodiment is formed into a perfect circular shape so that the cross-sectional shapes of the interlocking members 46L, 46R and the interlocking recesses 45L, 45R match each other, but the rotation of the center of the shaft 53 of the operating part 65 in the locked state S1 is limited by interlocking the above-mentioned interlocking members 46L, 46R and the interlocking recesses 45L, 45R. Figure 6 (B) shows the structure of the left locking operation portion 47L, but the right locking operation portion 47R also has the same structure.

[0121] Figure 9 It is a left side view showing a looseness elimination structure of the operating portion 65 of the windshield support mechanism 35 in the rotation direction.

[0122] Reference Figure 9On the vehicle widthwise inner side of the operating portion 65, a roughly triangular sliding portion 69 is provided, which extends into the outer peripheral wall 43a of the left sliding groove forming portion 42L. The sliding portion 69 includes a pair of sliding contact portions 69a that slide in contact with the outer peripheral wall 43a on the rear lower side (inner side of the curve) of the left sliding groove forming portion 42L. A base 43c is formed on the outer peripheral wall 43a, which allows each sliding contact portion 69a to ascend when the engaging members 46L, 46R engage with the engaging recesses 45L, 45R. The operating portion 65 is movable along the left sliding groove forming portion 42L, with enough play to restrict rotation in the unlocked state S2. The operating portion 65 removes any rotational play by ascending the corresponding base 43c at a predetermined position. In this state, the left and right locking operating portions 47L, 47R can be brought into the locked state S1.

[0123] Reference Figure 6 (A) Figure 7 At least one of the outer peripheral surface (first fitting surface) of the fitting members 46L, 46R that fits with the fitting recesses 45L, 45R, and the inner peripheral surface (second fitting surface) of the fitting recesses 45L, 45R that fits with the fitting members 46L, 46R (in the embodiment, both the first fitting surface and the second fitting surface) is formed as a tapered surface 45b, 46b whose cross-sectional shape becomes smaller as it approaches the other side in the left-right direction of the vehicle.

[0124] Thus, when the locking operating portion 47L, 47R is returned from the unlocked state S2 to the locked state S1, even if the relative position of the fitting member 46L, 46R to the fitting recess 45L, 45R is slightly deviated when viewed from the side, as soon as the front end of the fitting member 46L, 46R is inserted into the fitting recess 45L, 45R, the tapered surfaces 45b, 46b guide the fitting member 46L, 46R to eliminate the deviation in relative position (return to the normal relative position), and the fitting member 46L, 46R is fitted into the fitting recess 45L, 45R. The tapered surfaces 45b, 46b have a small inclination angle with respect to the axial direction, and the wedge effect of the tapered surfaces 45b, 46b allows the fitting member 46L, 46R to be securely fitted into the fitting recess 45L, 45R without looseness with a limited force.

[0125] Reference Figure 6 (A) Figure 8 The operating portion 65 includes: a base 66 that is in the shape of a plate perpendicular to the axial direction of the shaft 53 and is directly fixed to the end (left end) on one side of the shaft 53 in the left and right directions of the vehicle; a protrusion 67 that protrudes from the rear of the base 66 to the outside in the left and right directions of the vehicle; and a gripping portion 68 that is in the shape of a plate perpendicular to the axial direction of the shaft 53 and is fixed to the end of the protrusion 67 on the outside in the left and right directions of the vehicle.

[0126] When viewed axially of shaft 53 (i.e., from the side), base 66 has an elliptical shape that is elongated in the front-to-rear direction. Base 66 secures the left end of shaft 53 to the vehicle's left-right inward front portion, while protrusion 67 projects outward from the vehicle's left-right rear portion, located further rearward of shaft 53. When viewed from the side, the center of the front arc of base 66 is positioned on an extension of the left end of shaft 53.

[0127] The protrusion 67 is, for example, hollow and cylindrical with its axial direction oriented in the vehicle transverse direction and is arranged coaxially with the arc shape of the rear side of the base 66 in a side view. The protrusion 67 extends leftward (outward in the vehicle transverse direction) from the rear of the base 66.

[0128] The grip portion 68 has an elliptical shape that is long in the front-to-back direction when viewed from the side. The grip portion 68 comprises a base portion 68a that is within the base radius from the axis of the protrusion 67 when viewed axially from the shaft 53, and an extension portion 68b that extends rearward from the axis of the protrusion 67 beyond the base radius.

[0129] The grip portion 68 is offset outward in the vehicle's left-right direction relative to the base portion 66 adjacent to the left slide groove forming portion 42L and extends further rearward (toward the passenger's side) than the base portion 66. Thus, the grip portion 68 extends outward in the vehicle's left-right direction relative to the base portion 66 adjacent to the left slide groove forming portion 42L and is generally located further rearward than the shaft 53. Therefore, the grip portion 68 is easily visible and gripped by the passenger, improving the ease of windshield height adjustment. When the grip portion 68 is positioned so as to overlap the shaft 53 when viewed from the side, the portion located rearward of the shaft 53 extends further rearward relative to the portion located forward of the shaft 53.

[0130] The extension 68b of the grip 68 is formed to taper so that its vertical width narrows toward the rear in side view. This ensures the size of the grip 68 when viewed from the side and increases the degree of freedom in the angle of the hand holding the grip 68. The extension 68b is also formed to taper so that its width in the left-right direction of the vehicle narrows toward the rear in top view, further increasing the degree of freedom in the angle of the hand holding the grip.

[0131] As described above, the windshield device 30 in the above embodiment includes: a windshield 31; a bracket 50 that supports the windshield 31; a bracket 40 that supports the bracket 50 and the windshield 31 so as to be movable up and down and is fixed to the vehicle body; and a shaft 53 that extends in the left-right direction of the vehicle and passes through the first connecting portion (shaft holding portion 54L, 54R) of the bracket 50 and the second connecting portion (sliding groove forming portion 42L, 42R) of the bracket 40 in the left-right direction of the vehicle to connect them. One of the two connecting parts is an axis holding part 54L, 54R that holds the axis 53 so as not to move relative to each other when viewed from the left and right directions of the vehicle. The other of the first connecting part and the second connecting part is a sliding groove forming part 42L, 42R that forms a sliding groove 42a extending in the vertical direction of the vehicle and enables the axis holding parts 54L, 54R to slide along the groove length direction of the sliding groove 42a. By sliding the axis holding parts 54L, 54R along the sliding groove 42a, the height of the windshield 31 can be adjusted together with the bracket 50. The groove forming portions 42L and 42R are provided with fitting members 46L and 46R supported by the shaft 53 and movable in the left-right direction of the vehicle integrally with the shaft 53. Fitting recesses 45L and 45R are formed at a plurality of locations spaced apart in the groove length direction of the sliding groove 42a. The groove width is locally widened to allow the fitting members 46L and 46R to fit in. The fitting members 46L and 46R and the fitting recesses 45L and 45R constitute locking operating portions 47L and 47R. The locking operating portions 47L and 47R switch the shaft holding portion 54. L, 54R are in a locked state S1 in which they cannot slide relative to the sliding groove forming parts 42L, 42R, and the shaft retaining parts 54L, 54R are in an unlocked state S2 in which they can slide relative to the sliding groove forming parts 42L, 42R. An operating part 65 is provided on the shaft 53, which moves the shaft 53 and the interlocking components 46L, 46R in the left and right directions of the vehicle, and can switch the locked state S1 and the unlocked state S2 of the locking working parts 47L, 47R. The operating part 65 is only provided on one side of the shaft 53 in the left and right directions of the vehicle.

[0132] According to this configuration, the operating unit 65 for switching between locking and unlocking the locking operating units 47L and 47R is provided only on one side in the vehicle's left-right direction of the shaft 53 connecting the bracket 50 supporting the windshield 31 to the bracket 40 fixed to the vehicle body. This allows the occupant (user) to adjust the height of the windshield 31 with one hand. Therefore, compared to a case where the locking operating units 47L and 47R are switched between locking and unlocking using the operating units 65 on both the left and right sides, the height adjustment operation can be facilitated and the number of components can be reduced.

[0133] In the windshield device 30 , the locking operating parts 47L and 47R are provided as a pair of left and right locking operating parts. The states of the pair of left and right locking operating parts 47L and 47R can be switched simultaneously by the left and right operating parts 65 .

[0134] According to this structure, the locking and unlocking of the left and right pair of locking working parts 47L and 47R are switched simultaneously by operating the operating part 65 on one side of the vehicle in the left and right directions, thereby stably adjusting the height of the windshield 31 through the left and right pair of locking working parts 47L and 47R, and the height of the windshield 31 can be adjusted by one hand.

[0135] In the above-mentioned windshield device 30, the locking working parts 47L and 47R move the interlocking components 46L and 46R to the other side in the left-right direction of the vehicle to become the locked state S1, and move the interlocking components 46L and 46R to one side in the left-right direction of the vehicle to become the unlocked state S2, and the interlocking components 46L and 46R are urged to the other side in the left-right direction of the vehicle by the elastic component (coil spring 57).

[0136] According to this structure, the interlocking components 46L, 46R of the locking working parts 47L, 47R are urged toward the other side (locking side) in the left-right direction of the vehicle by the coil spring 57, thereby operating the operating part 65 toward one side (unlocking side) in the left-right direction of the vehicle to adjust the height of the windshield. By simply releasing the operating part 65, the locking working parts 47L, 47R can be returned to the locked state S1, which makes it easier to adjust the height of the windshield 31.

[0137] In the above-mentioned windshield device 30, at least one of the first fitting surface (46b) of the fitting members 46L, 46R that fits with the fitting recesses 45L, 45R, and the second fitting surface (45b) of the fitting recesses 45L, 45R that fits with the fitting members 46L, 46R is formed as a tapered surface 45b, 46b whose cross-sectional shape becomes smaller as it approaches the other side in the left-right direction of the vehicle.

[0138] According to this structure, the mating surface of at least one of the mating members 46L, 46R and the mating recesses 45L, 45R is formed as a tapered surface 45b, 46b. Therefore, even if the relative positions of the mating members 46L, 46R and the mating recesses 45L, 45R deviate slightly, the tapered surfaces 45b, 46b can guide the mating members 46L, 46R and the mating recesses 45L, 45R to the predetermined relative position. Furthermore, when force is applied to the mating members 46L, 46R in the mating direction, the wedge effect of the tapered surfaces 45b, 46b ensures that the mating members 46L, 46R and the mating recesses 45L, 45R are securely mated with each other without loosening, even with limited force. This makes windshield height adjustment easier.

[0139] In the windshield device 30 described above, the operating portion 65 includes the grip portion 68 extending rearward of the shaft 53 as viewed from the axial direction of the shaft 53 .

[0140] According to this structure, the operating portion 65 includes the grip portion 68 extending rearward from the shaft 53. This makes the grip portion 68 easily visible from the rear (passenger side) of the operating portion 65 and easily accessible to the hand, thereby improving the operability of the operating portion 65.

[0141] In the windshield device 30 described above, the operating portion 65 includes the grip portion 68 that is offset outward in the vehicle left-right direction relative to the base portion 66 to which the end portion of the shaft 53 is fixed.

[0142] According to this structure, the operating part 65 has a gripping part 68 that is offset toward the outside of the vehicle left-right direction relative to the end of the shaft 53. Therefore, regardless of the position of the end of the shaft 53 in the vehicle left-right direction, it is easy to ensure a gap for the hand to enter the inside of the vehicle left-right direction of the gripping part 68, thereby improving the operability of the operating part 65.

[0143] In the windshield device 30 described above, the lock operating portions 47L and 47R include the rotation restriction structure 48 that restricts the rotation of the operating portion 65 about the center of the shaft 53 in the locked state S1 .

[0144] According to this configuration, the locking operating portions 47L and 47R include a rotation limiting structure 48 that limits the rotation angle of the operating portion 65 in the locked state S1. This allows the rotation angle of the operating portion 65 after the windshield height is adjusted (in the locked state S1) to coincide with a predetermined desired angle. Therefore, the operating portion 65 can be maintained at an angle that is easy to grasp after the windshield height is adjusted.

[0145] The present invention is not limited to the above-described embodiment. For example, a configuration may be adopted in which the holder 50 includes a slide groove forming portion and the bracket 40 includes a shaft holding portion.

[0146] The windshield device 30 of this embodiment can also be applied to straddle-type vehicles other than motorcycles. These straddle-type vehicles include all vehicles in which a rider straddles the vehicle. These include not only motorcycles (including bicycles and scooters equipped with a prime mover), but also three-wheeled vehicles (including vehicles with two front wheels and one rear wheel, in addition to one front wheel and two rear wheels) or four-wheeled vehicles (such as four-wheeled buggies). Furthermore, these include not only vehicles with a straddle portion but also vehicles without a straddle portion.

[0147] The configuration in the above-described embodiment is an example of the present invention, and various modifications can be made without departing from the spirit of the present invention, such as replacing the components of the embodiment with well-known components.

Claims

1. A windshield device, wherein: The windshield device comprises: windshield (31); a bracket (50) for supporting the windshield (31); a bracket (40) which supports the bracket (50) and the windshield (31) so as to be movable up and down, and the bracket (40) is fixed to the vehicle body; as well as A shaft (53) extends along the left-right direction of the vehicle, penetrates and connects the first connecting portion (54L, 54R) of the bracket (50) and the second connecting portion (42L, 42R) of the bracket (40) along the left-right direction of the vehicle, One of the first connecting portion (54L, 54R) and the second connecting portion (42L, 42R) is a shaft retaining portion (54L, 54R) that retains the shaft (53) so as to be relatively immovable when viewed from the left and right directions of the vehicle. The other of the first connecting portion (54L, 54R) and the second connecting portion (42L, 42R) is a sliding groove forming portion (42L, 42R) that forms a sliding groove (42a) extending in the vertical direction of the vehicle and enables the shaft holding portion (54L, 54R) to slide along the groove length direction of the sliding groove (42a). By sliding the shaft holding portion (54L, 54R) along the sliding groove (42a), the height of the windshield (31) can be adjusted together with the bracket (50). The sliding groove forming portion (42L, 42R) is provided with a fitting member (46L, 46R) supported by the shaft (53) and movable integrally with the shaft (53) in the left-right direction of the vehicle, and fitting recesses (45L, 45R) are formed at a plurality of locations spaced apart in the groove length direction of the sliding groove (42a) to locally widen the groove width so that the fitting member (46L, 46R) can be fitted. The interlocking member (46L, 46R) and the interlocking recess (45L, 45R) constitute a locking operation portion (47L, 47R), and the locking operation portion (47L, 47R) switches between a locked state (S1) in which the shaft holding portion (54L, 54R) cannot slide relative to the sliding groove forming portion (42L, 42R) and an unlocked state (S2) in which the shaft holding portion (54L, 54R) can slide relative to the sliding groove forming portion (42L, 42R). An operating portion (65) is provided on the shaft (53), and the operating portion (65) moves the shaft (53) and the engaging member (46L, 46R) in the left-right direction of the vehicle, thereby switching the locking state (S1) and the unlocking state (S2) of the locking working portion (47L, 47R). The operating portion (65) is provided only on one side of the shaft (53) in the left-right direction of the vehicle.

2. The windshield device according to claim 1, wherein: The locking working parts (47L, 47R) are provided as a pair of left and right. The states of the left and right pair of locking working parts (47L, 47R) can be switched simultaneously by the operating parts (65) on the left and right sides.

3. The windshield device according to claim 1, wherein The locking operation part (47L, 47R) moves the fitting member (46L, 46R) to the other side in the left-right direction of the vehicle to enter the locked state (S1), and moves the fitting member (46L, 46R) to one side in the left-right direction of the vehicle to enter the unlocked state (S2). The engaging members (46L, 46R) are urged toward the other side in the left-right direction of the vehicle by an elastic member (57).

4. The windshield device according to claim 1, wherein At least one of a first fitting surface (46b) of the fitting member (46L, 46R) that fits with the fitting recess (45L, 45R) and a second fitting surface (45b) of the fitting recess (45L, 45R) that fits with the fitting member (46L, 46R) is formed as a tapered surface (45b, 46b) whose cross-sectional shape gradually decreases toward the other side in the left-right direction of the vehicle.

5. The windshield device according to claim 1, wherein The operating portion (65) includes a grip portion (68) extending rearward of the shaft (53) when viewed in the axial direction of the shaft (53).

6. The windshield device according to claim 1, wherein The operating portion (65) includes a grip portion (68) offset toward the outside in the vehicle left-right direction relative to a base portion (66) to which the end portion of the shaft (53) is fixed.

7. The windshield device according to claim 1, wherein: The locking operation portion (47L, 47R) has a rotation limiting structure (48) for limiting the rotation of the center of the shaft (53) of the operating portion (65) in the locked state (S1).

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