JP6070327B2 - Variable screen structure - Google Patents

Description

  The present invention relates to a variable screen structure suitably used for a motorcycle.

  2. Description of the Related Art A windscreen for a motorcycle is known that has a mechanism that can adjust the height and angle stepwise according to the physique, posture, and running state of an occupant.

  For example, Patent Document 1 discloses a technique for rotating the wind screen and adjusting the angle by manually changing the meshing position of the concave and convex engaging portion provided between the front cowl and the wind screen. Has been.

  Further, for example, Patent Document 2 discloses a technique for adjusting the position of a wind screen by driving an electric motor (motor) and rotating a plurality of induction connecting rods via a rotating shaft or the like.

Japanese Utility Model Publication No. 63-201889 JP 07-329859 A

  However, in the technique described in Patent Document 1, in order to adjust the angle of the wind screen, it is necessary to operate with an appropriate force while confirming the meshing position of the concave and convex engaging portions. Therefore, there is a problem that the angle adjustment operation cannot be easily performed because it takes experience and experience to make the windscreen have a desired angle.

  Further, in the technique described in Patent Document 2, since it is necessary to secure a space for arranging the electric motor and the power transmission mechanism below the wind screen, for example, the upper cowl is enlarged and it is difficult to secure the front lower view of the occupant. There was a risk of becoming. Furthermore, there is a problem that the weight increases because the mechanism becomes complicated.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a variable screen structure that can easily adjust the position of the wind screen with a simple mechanism.

  The variable screen structure of the present invention is a variable screen structure that changes the position of a wind screen supported by a vehicle body via a support, and connects a manual operation unit, the operation unit, and the support. A variable mechanism including a ratchet mechanism that moves the support and changes and holds the position of the wind screen in a stepwise manner according to the operation amount of the operation unit; and a moving direction of the ratchet mechanism; Comprises biasing means for applying a biasing force in the opposite direction.

  According to this configuration, the position (height and inclination angle) of the wind screen is adjusted stepwise by moving the ratchet mechanism against the urging force of the urging means. Further, since the urging means applies the urging force in the direction opposite to the moving direction of the ratchet mechanism, the wind screen is held at the adjusted position. Further, it is not necessary for the occupant to make fine adjustments while checking the meshing position of the ratchet mechanism, and stepwise adjustment of the height and inclination angle of the wind screen can be linked to the operation amount of the operation unit. Thereby, a passenger | crew can operate easily with a simple mechanism using a ratchet mechanism.

  In this case, it is preferable that the operation unit is disposed apart from the support, and the variable mechanism includes a cable that connects the operation unit and the support and moves the support. .

  According to this structure, since the operation part is arrange | positioned away from the support body (windscreen), the support body periphery can be comprised compactly. Thereby, for example, the upper cowl in which the support portion and the like are provided can be reduced in size, and the front and lower visibility of the occupant can be easily secured. In addition, since the operation unit can be provided at a free position, the operation unit can be arranged at a position where the passenger can easily operate.

  Further, in this case, a pair of the support bodies are provided, and one end of the pair of support bodies is connected to the vehicle so as to be separated in the vertical direction, and the other end is connected to the wind screen so as to be separated in the vertical direction. The cable is preferably connected to the lower support.

  According to this configuration, since the cable is connected to the lower support, for example, the cable can be accommodated in the upper cowl. Thereby, it is possible to prevent the cable from being exposed to a position that can be visually recognized by the occupant and to have a simple appearance, thereby preventing the occupant's view and operation from being hindered.

  In this case, the support to which the cable is connected is preferably a link provided so as to be swingable in the vertical direction.

  According to this configuration, the connection position between the link and the cable can be set freely. Thereby, compared with the case where the structure which slides on a rail is used as a support body, for example, since the operation amount and operation force of the operation part by a passenger | crew can be optimized, operativity can be aimed at.

  In this case, the link is rotatably supported by a swing shaft provided on the vehicle body side, and is rotatably supported by a support shaft provided on the wind screen. It is preferable that the operation shaft which is a connecting portion is provided on the opposite side of the support shaft across the swing shaft.

  According to this configuration, since the distance between the rocking shaft of the link and the operation shaft to which the cable is connected can be set freely, the force applied to the operation of the operation unit can be easily adjusted. Further, for example, since the cable can be accommodated inside the upper cowl, the cable is not exposed to the outside, the appearance is simple, and the deterioration of the cable can be appropriately suppressed.

  In this case, it is preferable that the operation unit is provided on a front panel disposed in front of the vehicle.

  According to this configuration, since the operation unit is disposed in front of the occupant in the riding state, the position of the wind screen is adjusted even when the vehicle is stopped for a short time such as waiting for a signal. Can be done quickly. That is, it is possible to improve convenience for the passenger.

  In this case, it is preferable that the operation part is provided in a grip part of the handle of the vehicle or in the vicinity of the grip part.

  According to this configuration, since the operation unit is disposed at a position where the passenger in the riding state can operate by slightly moving his / her hand, the position of the wind screen can be quickly adjusted even in a short stoppage time. . That is, it is possible to improve convenience for the passenger.

  In this case, it is preferable that the said operation part is provided in the lower side part of the seating part of the said vehicle.

  According to this configuration, since the operation unit is disposed at a position where a passenger in the riding state can easily reach his / her hand, the position of the wind screen can be quickly adjusted even in a short stoppage time. That is, it is possible to improve convenience for the passenger.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to simplify the mechanism which concerns on the position adjustment of a wind screen, the position adjustment operation of a wind screen can be performed easily.

1 is a side view showing a motorcycle equipped with a variable screen structure according to a first embodiment of the present invention. 1 shows a motorcycle equipped with a variable screen structure according to a first embodiment of the present invention, wherein (a) is a perspective view mainly showing a front side, and (b) is a perspective view showing a front panel and an operation unit. . It is a front view which shows the support mechanism of the screen variable structure which concerns on 1st Embodiment of this invention. It is a side view which shows the support mechanism of the screen variable structure which concerns on 1st Embodiment of this invention. The screen variable structure which concerns on 1st Embodiment of this invention is shown, (a) is a side view which shows a variable mechanism, (b) is a side view which shows a ratchet part. It is a side view which shows typically operation | movement of the support mechanism of the screen variable structure which concerns on 1st Embodiment of this invention. It is a perspective view which shows the motorcycle by which the screen variable structure which concerns on the modification of 1st Embodiment of this invention was mounted. It is a side view which shows the motorcycle by which the screen variable structure which concerns on 2nd Embodiment of this invention was mounted. It is a perspective view which shows partially the motorcycle by which the screen variable structure which concerns on 2nd Embodiment of this invention was mounted. It is a side view which shows the variable mechanism of the screen variable structure which concerns on 2nd Embodiment of this invention. It is a bottom view which shows the variable mechanism of the screen variable structure which concerns on 2nd Embodiment of this invention. It is TT sectional drawing in FIG. It is VV sectional drawing in FIG.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. For convenience of explanation, the forward (forward) direction of the vehicle is assumed to be the front, and the front, rear, left and right, and the upper and lower sides are defined as indicated by arrows in each figure with reference to an occupant who has boarded the vehicle.

<First Embodiment>
First, with reference to FIG. 1, an overall configuration of a motorcycle equipped with a variable screen structure according to the first embodiment will be described. Here, FIG. 1 is a side view showing the motorcycle. 2A is a perspective view mainly showing a front side of the motorcycle, and FIG. 2B is a perspective view showing a front panel and an operation unit.

  As shown in FIGS. 1 and 2, a scooter type motorcycle 1 includes a body frame 2, an engine (not shown) mounted on the body frame 2, and a vehicle body as a vehicle body exterior covering the body frame 2 and the engine. And a cover 3.

  A pair of front forks 4 are supported by a head pipe (not shown) provided at the front portion of the vehicle body frame 2 so as to be steerable left and right. A front wheel 5 is pivotally supported at the lower ends of the pair of front forks 4, and a front fender 6 is provided so as to cover the top of the front wheel 5. A handle bar 7 for steering the front wheel 5 is provided on the upper part of the pair of front forks 4.

  A transmission case 10 that functions as a swing arm is coupled to the rear portion of the vehicle body frame 2 so as to be swingable in the vertical direction. A rear wheel 11 as a drive wheel is pivotally supported at the rear end portion of the transmission case 10, and a rear fender 12 is provided so as to cover the upper portion of the rear wheel 11. A seating seat 13 is provided on the upper rear side of the body frame 2. A belt type continuously variable transmission is accommodated in the transmission case 10.

  The vehicle body cover 3 is provided on the back side of the front cowl 14 that protects the front of the occupant, the leg shield 15 that protects the legs of the occupant, and extends backward from the lower end of the leg shield 15. And a seat cowl 17 provided on the lower side of the seating seat 13 behind the step board 16.

  The front cowl 14 includes an upper cowl 18 disposed on the upper side and an under cowl 19 disposed on the lower side of the upper cowl 18.

  A headlamp 20 is provided on the front surface of the upper cowl 18, and a windscreen 21 for windbreak is provided above the headlamp 20. Further, a meter 22 for displaying the vehicle speed and the engine speed is provided between the handle bar 7 and the wind screen 21, that is, inside the upper cowl 18. The meter 22 is fitted into the meter panel 22a with the display surface facing obliquely rearward and upward. The meter panel 22a extends upward from the upper front end of the vehicle body frame 2 and is fixed to a horizontal portion 23a of a meter stay 23 formed in a U shape in front view (see FIG. 3).

  A front panel 24 inclined downward is provided on the upper end surface of the leg shield 15. A handlebar 7 is disposed on the front side of the front panel 24 so as to be steerable left and right, and various switches and the like are disposed on the rear side of the front panel 24.

  In addition, a center console 25 extends in the front-rear direction so as to connect the leg shield 15 and the seat cowl 17 approximately at the center in the left-right direction of the vehicle body. A space for placing the occupant's legs formed by the leg shield 15 and the step board 16 is divided into left and right by the center console 25. A fuel tank (not shown) is accommodated in the center console 25.

  Inside the seat cowl 17, an engine mounted on the vehicle body frame 2 is accommodated. The engine uses gasoline as fuel, and its driving force is transmitted to the rear wheel 11 via a belt-type continuously variable transmission in the transmission case 10.

  The above-described wind screen 21 has a slightly curved shape so as to protrude forward in a plan view by a transparent resin material. The wind screen 21 is provided at the upper end portion of the upper cowl 18 in a state of being inclined upward in the side view. The wind screen 21 is provided with a variable screen structure 26 so that the height and inclination angle of the wind screen 21 can be adjusted according to the occupant's physique, riding posture, etc., or the occupant's preference. .

Next, the variable screen structure 26 will be described in detail with reference to FIGS.
FIG. 3 is a front view showing a support mechanism of the screen variable structure 26, and FIG. 4 is a side view showing the support mechanism. Fig.5 (a) is a side view which shows a variable mechanism, FIG.5 (b) is a side view which shows a ratchet part. FIG. 6 is a side view schematically showing the operation of the support mechanism having the variable screen structure.

  As shown in FIGS. 2 to 5, the screen variable structure 26 is a support mechanism 30 that movably supports the wind screen 21 with respect to the vehicle body, and urging means that urges the wind screen 21 downward. A return spring 31, a manual operation unit 32, and a variable mechanism 33 that connects the operation unit 32 and the support mechanism 30 and changes the position of the wind screen 21 are provided.

  As shown in FIGS. 3 and 4, the support mechanism 30 includes a pair of left and right base brackets 34 supported by the meter stay 23 and a pair of upper and lower support bodies 35 pivotally supported by the base brackets 34. There are two sets of left and right, and a pair of left and right link brackets 36 provided between the support 35 and the wind screen 21 of each set.

  The base bracket 34 on the left side (right side in FIG. 3) is made of a plate-like metal material, and is formed in an L shape with a lower part bent backward in a side view (see FIG. 4). The base bracket 34 includes a base fixing portion 34a extending rearward, a pair of upper and lower swing support portions 34b extending frontward, and a base side fixing portion formed at a bent lower end portion. 34c.

  The base fixing portion 34a is provided on the upper portion of the base bracket 34, is fitted to the horizontal portion 23a of the meter stay 23, and is fastened and fixed by a bolt nut or the like (not shown). Thereby, the base bracket 34 is fixed to the meter stay 23 (horizontal part 23a) at an angle substantially parallel to the wind screen 21 in the state moved to the lowermost end (see FIG. 4).

  The pair of swing support portions 34b are provided apart from each other in the vertical direction. Specifically, the pair of swing support portions 34b are provided so as to protrude from the front surface of the base bracket 34 above the base fixing portion 34a and below the center in the vertical direction.

  The right side base bracket 34 (on the left side in FIG. 3) has a substantially plate shape, and has the same configuration as the right side base bracket 34 described above except that the base side fixing portion 34c is omitted. Detailed description thereof will be omitted.

  The pair of upper and lower support bodies 35 of each set are plate-shaped so-called links provided so as to be separated from each other in the vertical direction. Since the pair of support bodies 35 of each set has the same shape, the pair of upper and lower support bodies 35 positioned on the left side (right side in FIG. 3) will be described. In the following description, for convenience, the upper support 35 is referred to as a first link 40 and the lower support 35 is referred to as a second link 41.

  The rear end portion (one end) of the first link 40 is rotatably supported by a first swing shaft 40a provided on the swing support portion 34b on the upper side of the base bracket 34. Further, the front end portion (the other end) of the first link 40 is rotatably supported by a first support shaft 40 b provided at the upper end portion of the link bracket 36. Each link bracket 36 is fixed to the lower rear surface of the wind screen 21.

  The second link 41 is rotatably supported by a second swing shaft 41a provided on the swing support portion 34b on the lower side of the base bracket 34 at a position (one end) rearward from the center in the front-rear direction. . Further, the front end portion (the other end) of the second link 41 is rotatably supported by a second support shaft 41 b provided at the lower end portion of the link bracket 36. Further, the second link 41 is provided so as to extend rearward from the second swing shaft 41a.

  The pair of left and right second links 41 are connected by a connecting portion 37 with a predetermined interval (see FIG. 3). With this connecting portion 37, the right second link 41 can be driven as the left second link 41 rotates (swings).

  Here, as a member, the second link 41 is formed longer in the front-rear direction than the first link 40, but as the link, the first link 40 is formed longer than the second link 41. ing. That is, the distance A between the first swing shaft 40a and the first support shaft 40b is configured to be longer than the distance B between the second swing shaft 41a and the second support shaft 41b. (See FIG. 6).

  The return spring 31 is a so-called coil spring, and hooks 31a are formed at both ends in the axial direction. It spans between the base fixing part 34a of the left base bracket 34 and the second link 41 so as to be parallel to the base bracket 34. Specifically, the hook 31a at one end of the return spring 31 is hooked in a hole opened in the base fixing portion 34a, and the hook 31a at the other end opens at the rear side of the second swing shaft 41a of the second link 41. It is caught in the hole. Accordingly, the return spring 31 applies a biasing force in a direction in which the rear portion of the second link 41 is pulled up.

  As shown in FIG. 2, the operation unit 32 is disposed at the approximate center of the front panel 24 that is spaced rearward from each support 35. The operation unit 32 is formed in a rectangular shape when viewed from the front, protrudes from the front side when viewed from the side, and is formed so that an occupant can easily grip the operation unit 32.

  As shown in FIG. 5, the variable mechanism 33 is disposed inside the lower side of the front panel 24 (inside the upper cowl 18). The variable mechanism 33 connects the operation unit 32 and the second link 41 via the ratchet mechanism 42 and the ratchet mechanism 42 that changes and holds the position of the wind screen 21 according to the operation amount of the operation unit 32. And a cable 43 for moving each support 35.

  The ratchet mechanism 42 includes a support plate 44, a lever plate 45 pivotally supported by the support plate 44, a ratchet portion 46 provided between the support plate 44 and the lever plate 45, and the lever plate 45 behind the lever plate 45. And an unlocking spring 47 that urges toward.

  The support plate 44 is made of a plate-like metal material, and is generally formed to bend toward the upper rear in a side view. A lever rotation shaft 50 projects from the support plate 44 at the center in the vertical direction and at the rear. A mechanism-side spring hook 51 protrudes forward from the lower front end of the support plate 44, and a mechanism-side fixing part 52 is bent downward to the left below the mechanism-side spring hook 51. Has been.

  Similarly, the lever plate 45 is made of a plate-like metal material, and is roughly formed in a shape curved toward the upper rear in a side view. The upper end portion of the lever plate 45 is exposed to the outside from a slit 24a (see FIG. 2) cut in the front panel 24 in the front-rear direction. The operation unit 32 is fixed to the exposed upper end portion of the lever plate 45.

  Further, the lever plate 45 is rotatably supported by the lever rotation shaft 50 at a position closer to the lower part of the lower portion thereof. As the lever plate 45 rotates, the operation unit 32 slides in the front-rear direction along the slit 24a.

  A substantially 1/4 annular engagement plate 53 is fixed to the lower front side of the lever plate 45. A cable engagement hole 54 is formed at the upper end portion of the engagement plate 53, and a lever-side spring engagement portion 55 projects leftward from the approximate center of the engagement plate 53 in a side view.

  The ratchet portion 46 includes a rack 56 in which a plurality of tooth portions 56a are arranged in the front-rear direction, and pawls 57 that are locked to the tooth portions 56a.

  As shown well in FIG. 5B, the rack 56 is provided on the upper surface of the notch 44 a formed at the upper rear corner of the support plate 44. Each tooth portion 56a of the rack 56 is formed to be slightly inclined upward. In addition, a claw relief portion 56b is recessed in the downward direction in front of the rack 56.

  The pawl 57 has a claw portion 57a whose tip (lower end) is bent backward, and is formed in a claw shape in a side view. The pawl 57 is rotatably attached to the lever plate 45 at a position where the pawl portion 57a is hooked on each tooth portion 56a. Specifically, the pawl 57 is formed with an elongated sliding hole 57b in a substantially front-rear direction, and a cylindrical shaft 58 protruding from the lever plate 45 is inserted into the sliding hole 57b. Thereby, the pawl 57 is supported so as to be rotatable and slidable with respect to the cylindrical shaft 58. The lever plate 45 is provided with a torsion coil spring 59 that biases the pawl 57 toward the rack 56.

  In addition, when the pawl claw 57 faces the above-described claw relief portion 56b, the tip of the pawl claw 57 is in an unlocked state that is not engaged with any of the tooth portions 56a. In the state where the pawl 57 is locked to the rack 56, the pawl 57 can be moved backward with respect to the rack 56, but cannot be moved forward.

  As well shown in FIG. 5A, the lock release spring 47 is a so-called coil spring, and hooks 47a are formed at both ends in the axial direction. The hook 47 a at one end of the locking release spring 47 is hooked on the mechanism side spring hooking portion 51 of the support plate 44, and the hook 47 a at the other end is hooked on the lever side spring hooking portion 55 of the lever plate 45. Thereby, the latch release spring 47 applies a biasing force in a direction in which the pawl 57 is in the latch release state.

  The cable 43 is configured by providing an inner cable 43b in the axial center of the protective tube 43a. A cup 43c having a male screw formed at the top is attached to the rear end side of the protective tube 43a. The cup 43c is inserted into a notch hole 52a formed in the mechanism side fixing portion 52 of the support plate 44 from the left side, and is fixed to the mechanism side fixing portion 52 by screwing a nut N1 (double nut) from above. The The rear end of the inner cable 43 b extends upward from the cup 43 c and is locked in the cable engagement hole 54 of the engagement plate 53.

  Similarly, as shown in FIG. 4, a cup 43c is attached to the front end side of the protective tube 43a, and the cup 43c is a notch hole (not shown) formed in the base side fixing portion 34c of the base bracket 34. And is fixed with a nut N2. The front end of the inner cable 43b extends upward from the cup 43c and is connected to the rear end portion of the second link 41 on the left side so as to be rotatable. Specifically, the operation shaft 41c, which is a connection portion between the left second link 41 and the inner cable 43b, is provided on the opposite side of the second support shaft 41b with the second swing shaft 41a interposed therebetween.

  As described above, the ratchet mechanism 42 and the second link 41 (support 35) are connected via the cable 43. That is, the operation unit 32 and the second link 41 (support 35) are connected by the variable mechanism 33, and the input from the operation unit 32 is transmitted to the second link 41 via the ratchet mechanism 42 and the cable. Thereby, the wind screen 21 is moved according to the operation of the operation unit 32.

  Next, stepwise change and holding of the position of the wind screen 21 according to the operation amount (slide amount) of the operation unit 32 will be described with reference to FIGS. The position where the wind screen 21 is moved to the lowermost position is the initial position, and when the wind screen 21 is in the initial position, the pawl 57 is facing the claw relief portion 56b (the unlocked state (FIG. 5 ( (see the broken line in a))) is the initial position of the lever plate 45 (see the solid line in FIG. 5A).

  First, when the wind screen 21 is in the initial position, the lever plate 45 is pulled forward by the urging force of the locking release spring 47 and the urging force of the return spring 31 acting via the cable 43. Thereby, the front surface of the pawl 57 is brought into contact with the back surface of the notch 44a of the support plate 44, and the wind screen 21 is held at the initial position.

  From this state, when an occupant sitting on the seating seat 13 grips the operation portion 32 of the front panel 24 and pulls it backward, the lever plate 45 moves the lever rotation shaft 50 against the biasing force of the locking release spring 47. Rotate back to the center. As the lever plate 45 rotates, the claw portion 57a starts to slide on the inclined tooth surface of the tooth portion 56a at the foremost end. The pawl 57 rotates upward about the cylindrical shaft 58 against the biasing force of the torsion coil spring 59 and is guided by the cylindrical shaft 58 and slides upward along the sliding hole 57b. As described above, since each tooth portion 56a is inclined upward, the claw portion 57a can move along the inclination of each tooth portion 56a.

  When the lever plate 45 further rotates, the claw portion 57 a gets over the sliding tooth portion 56 a, and rotates and slides downward by the biasing force of the torsion coil spring 59. And the nail | claw part 57a enters between adjacent tooth parts 56a, and is latched by the tooth part 56a which got over. Since the front end surface of the nail | claw part 57a latched contact | abuts on the front side tooth surface of the tooth | gear part 56a, it is controlled that the pawl claw 57 moves ahead. In other words, when the pawl 57 is locked to the rack 56, the forward rotation of the lever plate 45 is restricted. Accordingly, the occupant is restricted from pushing the operating portion 32 forward from the state shown by the two-dot chain line in FIG.

  Further, since the engagement plate 53 also rotates together with the rotation of the lever plate 45, the inner cable 43b whose rear end is fixed to the engagement plate 53 is pulled upward (see the two-dot chain line in FIG. 5A). reference). In FIG. 5A, the initial position of the lever plate 45 is indicated by a solid line, and the rear end position of the lever plate 45 is indicated by a two-dot chain line.

  In conjunction with this, the inner cable 43b connected to the operation shaft 41c pulls the rear end portion of the left second link 41 downward in the front direction against the urging force of the return spring 31 (see FIG. 4). Due to the forward downward tension acting on the operation shaft 41c, the second link 41 on the left side rotates about the second swing shaft 41a, and the second support shaft 41b moves upward on the rear side. The right second link 41 connected by the connecting portion 37 also rotates in the same manner. Further, each first link 40 connected to each second link 41 via each link bracket 36 rotates about the first swing shaft 40a, and the first support shaft 40b moves rearward and upward. And since each support shaft 40b, 41b is connected to the wind screen 21 via each link bracket 36, the wind screen 21 also moves with each support shaft 40b, 41b.

  As shown in FIG. 6, the length (distance A) of each first link 40 is set to be longer (larger) than the length (distance B) of each second link 41. Since the links 40 and 41 having different lengths have the same amount of movement as described above, the movement locus of each first support shaft 40b and the movement locus of each second support shaft 41b are different. (See the white arrow in FIG. 6). For this reason, the wind screen 21 rises from the initial position and the inclination angle (the angle between the wind screen 21 and the horizontal plane) increases.

  At this time, the return spring 31 applies a biasing force in a direction opposite to the moving direction of the ratchet mechanism 42 to the lever plate 45 via the cable 43. That is, the return spring 31 applies a biasing force in such a direction as to maintain the locked state between the rack 56 and the pawl 57.

  As described above, the height and the inclination angle (position) of the wind screen 21 are changed from the initial position, and the changed position is held by the cooperative action of the variable mechanism 33 (the ratchet mechanism 42) and the return spring 31. .

  Further, the occupant changes the height and the inclination angle (position) of the wind screen 21 stepwise by operating the operation unit 32 and arbitrarily changing the locking position of the rack 56 and the pawl 57. be able to.

  For example, as shown in FIG. 5 (b), when the pawl 57 is locked to the tooth portion 56a at the foremost end, when the occupant pulls the operation portion 32 further rearward, as the lever plate 45 rotates, The claw portion 57a starts to slide on the inclined tooth surface of the rear tooth portion 56a. The pawl 57 rotates and slides against the urging force of the torsion coil spring 59. Eventually, the claw portion 57a gets over the slidable tooth portion 56a, rotates and slides downward by the urging force of the torsion coil spring 59, and is locked to the overtaken tooth portion 56a.

  As described above, the position of the wind screen 21 is changed each time the claw portion 57a moves between the adjacent tooth portions 56a and is locked to the tooth portions 56a. Thereby, stepwise position adjustment of the wind screen 21 can be performed.

  Here, when the occupant pulls the operating portion 32 to the vicinity of the rear end of the slit 24a, the lever plate 45 is rotated to the rear end position (see the two-dot chain line in FIG. 5A), and the wind screen 21 is moved to the upper end position. And the maximum inclination angle (see the two-dot chain line in FIG. 6). When the occupant further draws the operation part 32 backward from this state, the pawl 57 is released from the rack 56 and the lever plate 45 (operation part 32) is moved forward by the urging force of the lock release spring 47. To return to the initial position. The wind screen 21 is also moved downward by the urging force of the return spring 31 and rotated backward to return to the initial position (see the solid line in FIG. 6).

  According to the screen variable structure 26 according to the first embodiment described above, the position (height and inclination) of the wind screen 21 is obtained by moving the ratchet mechanism 42 against the urging force of the return spring 31 as the urging means. Angle) is adjusted step by step. Further, since the return spring 31 applies a biasing force in the non-moving direction of the ratchet mechanism 42, the wind screen 21 is held at the adjusted position. Furthermore, it is not necessary for the occupant to make fine adjustments while confirming the meshing position of the ratchet mechanism 42, and stepwise adjustment of the height and inclination angle of the wind screen 21 can be linked to the operation amount of the operation unit 32. . Thus, the occupant can easily operate with a simple mechanism using the ratchet mechanism 42.

  For example, when the wind screen 21 is adjusted to a high position by the screen variable structure 26, a high wind protection effect suitable for high-speed driving (reduction of wind pressure and wind noise of the driving wind and rectification of the driving wind) is exhibited. Can be made. Further, when the wind screen 21 is adjusted to a low position, an appropriate wind pressure can be given to the occupant at the time of medium / low speed, and comfort during running can be improved. Further, in the screen variable structure 26 according to the first embodiment, the traveling wind can be effectively flowed upward by setting the wind screen 21 to a high position and bringing the inclination angle closer to a standing posture. Thus, an effective wind protection effect can be obtained as compared with the case where only the height of the wind screen 21 is raised.

  Moreover, since the operation part 32 is arrange | positioned at the front panel 24 separated from each support body 35 (windscreen 21), the circumference | surroundings of each support body 35 can be comprised compactly. Thereby, the upper cowl 18 in which each support part 35 etc. is installed can be reduced in size, and a passenger | crew's front-lower view can be ensured easily. In addition, since the operation unit 32 is disposed on the front panel 24 that is easy for a rider in the riding state to reach and operate, the position of the wind screen 21 is maintained even when the vehicle is stopped for a short time such as waiting for a signal. Adjustments can be made quickly. That is, the operation part 32 can be provided in a free position, and the convenience for a passenger | crew can be improved.

  Further, since the cable 43 is connected to the lower support body 35 (the second link 41 on the left side), the cable 43 can be accommodated in the upper cowl 18. Thus, the cable 43 can be prevented from being exposed at a position that can be visually recognized by the occupant, and the appearance can be simplified, thereby preventing the occupant's field of view and operation from being hindered. Moreover, deterioration of the cable 43 can also be suppressed appropriately.

  Further, since the distance between the second swing shaft 41a of the second link 41 and the operation shaft 41c to which the cable 43 is connected can be freely set, the force applied to the operation of the operation unit 32 can be easily adjusted. Can do. Thereby, for example, compared with the case where a structure that slides on the rail is used as the support mechanism 30, the amount of operation and the operation force of the operation unit 32 by the occupant can be optimized, so that the operability can be improved. .

  Further, according to the variable screen structure 26 according to the first embodiment, since the ratchet mechanism 42 is provided on the operation unit 32 side, the configuration on the support mechanism 30 side can be simplified, and the upper cowl 18 Compactness can be achieved. Further, since the position of the operation unit 32 is held according to the operation amount, the ratchet mechanism 42 can grasp the position and operation limit of the wind screen 21 from the position of the operation unit 32. Thereby, the convenience for a passenger | crew can be improved.

  The connection destination of the cable 43 may be the second link 41 on the right side. Moreover, the moving direction of the operation part 32 which operates the variable mechanism 33 is arbitrary, For example, you may comprise the operation part 32 so that it may push forward, and it may comprise so that it can slide to right and left. .

<Modification of First Embodiment>
Next, a screen variable structure 60 according to a modification of the first embodiment will be described with reference to FIG. Here, FIG. 7 is a perspective view showing the motorcycle 1 on which the variable screen structure 60 is mounted. In addition, about the structure similar to above-described 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the screen variable structure 26 according to the first embodiment described above, the operation unit 32 is disposed on the front panel 24. However, in the screen variable structure 60 according to the present modification, as illustrated in FIG. Is provided on the lower side surface portion of the seating seat 13 as a seating portion.

  Specifically, on the lower left side of the seating seat 13, a concave surface portion 62 that is recessed inward by one step is formed on the left side surface of the seat cowl 17, and the slit 63 that slightly curves and extends in the vertical direction is formed in the concave surface portion 62. Is formed. In the present modification, the variable mechanism 33 is disposed inside the seat cowl 17, and the operation unit 61 is fixed to the upper end portion of the lever plate 45 exposed from the slit 63.

  The occupant can adjust the position of the wind screen 21 stepwise by operating the variable mechanism 33 by grasping the operation unit 61 and pulling it upward while sitting on the seat 13. . In addition, since the position adjustment action of the wind screen 21 of the screen variable structure 60 according to this modification is the same as that according to the first embodiment described above, the description thereof is omitted.

  According to the variable screen structure 60 according to the modified example of the first embodiment described above, the same operational effects as those according to the first embodiment can be obtained. Moreover, since the operation part 61 is arrange | positioned in the position where the passenger | crew of a boarding state can reach a hand easily, position adjustment of the wind screen 21 can be performed rapidly even in short stop time. That is, it is possible to improve convenience for the passenger.

  In addition, the moving direction of the operation part 61 which operates the variable mechanism 33 is arbitrary, For example, you may comprise the operation part 61 so that it may push down below.

Second Embodiment
Next, with reference to FIGS. 8 to 13, a motorcycle 70 on which the variable screen structure 80 according to the second embodiment is mounted will be described. 8 is a side view showing the motorcycle 70, and FIG. 9 is a perspective view partially showing the motorcycle 70. As shown in FIG. In addition, about the structure similar to above-described 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIGS. 8 and 9, the motorcycle 70 according to the second embodiment schematically includes a vehicle body frame 71, an engine 72, and a vehicle body cover 73, similar to the one according to the first embodiment. It is configured.

  The vehicle body frame 71 includes a head pipe 71a disposed at the upper end of the front part, a pair of left and right main frames 71b extending from the head pipe 71a to the rear lower part, and a rear part from the rear part of the main frame 71b to the rear upper part. And a pair of left and right seat rails 71c provided.

  A pair of left and right front forks 71d that pivotally support the front wheel 70a is supported on the head pipe 71a so as to be steerable left and right. A handle bar 74 is fixed to the upper end of the front fork 71d, and grip portions 75 are provided at both left and right ends of the handle bar 74. A fuel tank 70b is provided between the pair of left and right main frames 71b, and an engine 72 is mounted below the fuel tank 70b. A swing arm 71e that pivotally supports the rear wheel 70c is supported at the rear lower portion of the main frame 71b so as to be swingable up and down. A seat 70d is provided between the pair of left and right seat rails 71c.

  The vehicle body cover 73 includes an upper cowl 73a that covers the front portion of the vehicle body, a pair of left and right side cowls 73b that covers the side portions of the vehicle body, and a rear seat cowl 73c that covers the rear portion of the vehicle body.

  A wind screen 76 is provided above the headlamp 70e provided on the front surface of the upper cowl 73a. A meter 77 fitted into the meter panel 77a is provided between the handle bar 74 and the wind screen 76 (inside the upper cowl 73a). In addition, a variable screen structure 80 for adjusting the height and the inclination angle of the wind screen 76 is provided as in the first embodiment.

  Next, the variable screen structure 80 will be described in detail with reference to FIGS. FIG. 10 is a side view showing a variable mechanism of the screen variable structure 80, and FIG. 11 is a bottom view. 12 is a TT cross-sectional view in FIG. 10, and FIG. 13 is a VV cross-sectional view in FIG.

  The screen variable structure 80 includes a support mechanism 30, a return spring 31, an operation unit 81, and a variable mechanism 82. The support mechanism 30 and the return spring 31 are the same as those according to the first embodiment.

  The operation unit 81 is a stick-like lever that is operated by rotating with respect to a predetermined fulcrum. The operation part 81 is arranged so as to face the lower side of the left grip part 75 so that an occupant holding the grip part 75 can operate with, for example, the thumb of the left hand (see FIG. 9). ).

  The variable mechanism 82 includes a ratchet mechanism 83 and a cable 43. The cable 43 is the same as that according to the first embodiment.

  As shown well in FIG. 12, the ratchet mechanism 83 includes a case 84 formed in a substantially cylindrical shape, a gear 85 provided in a non-rotatable manner inside the case 84, and each tooth portion 85a formed in the gear 85. It has a pawl 86 to be locked and a pressing spring 87 that urges the pawl 86 toward the gear 85.

  As well shown in FIG. 13, the case 84 includes a case main body 90 and a reel rotation shaft 92, and is formed integrally with the operation unit 81 inside the case main body 90 and is the same as the reel rotation shaft 92. The reel 91 is pivotally supported so as to have an axial center.

  The case main body 90 is formed in a cylindrical shape, is fixed to the mounting bracket 93, and is provided in the vicinity of the left grip portion 75 (see FIG. 10). The operation unit 81 rotates about the reel rotation shaft 92. The mounting bracket 93 faces the lower side of the handle bar 74 at a position near the left grip part 75, and is fixed by tightening the band B wound around the handle bar 74 with a bolt nut N3 (see FIG. 10). ).

  Further, the case 84 is provided with a case-side fixing portion 94 projecting obliquely forward at a position opposite to the operation portion 81. A cup 43c on the rear end side of the protective tube 43a is fixed to the case side fixing portion 94.

  The reel 91 is formed in a cylindrical shape, and is fixed to the mounting bracket 93 side of the case body 90 so as to rotate integrally with the operation unit 81. Further, a tip fixing portion 95 to which the rear end of the inner cable 43b is connected is provided between the reel 91 and the operation portion 81.

  As well shown in FIG. 12, the gear 85 is provided on the lower side of the reel 91 so as to have the same axis as the reel 91. The gear 85 is fixed to the mounting bracket 93 so as not to follow the rotation of the operation unit 81. The plurality of tooth portions 85a formed on the outer periphery of the gear 85 are formed to be inclined in the direction in which the cable 43 (inner cable 43b) is wound up (see the arrow in FIG. 12).

  The pawl 86 has a claw portion 86a having a thin tip, and is rotatably attached to the operation portion 81 at a position where the claw portion 86a is caught by each tooth portion 85a. Specifically, the pawl claw 86 is pivotally supported by a claw rotation shaft 86 b provided at a continuous portion between the reel 91 and the operation unit 81.

  The pressing spring 87 is a so-called coil spring, and one end thereof is supported by a pedestal portion 87a formed in the vicinity of the claw rotation shaft 86b, and the other end is disposed so as to contact the claw portion 86a. Thereby, the pressing spring 87 presses the claw portion 86a against the tooth portion 85a, and the state where the claw portion 86a is locked to the tooth portion 85a is maintained.

  Next, stepwise adjustment of the position of the wind screen 76 according to the operation amount (rotation amount) of the operation unit 81 will be briefly described. When the wind screen 76 is in the initial position, the state where the tip of the operation unit 81 faces the center side (inner side) of the handle bar 11 is defined as the initial position of the operation unit 81. Moreover, when the operation part 81 exists in an initial position, the nail | claw part 86a of the pawl claw 86 shall be latched by one of the tooth parts 85a.

  First, when an occupant seated on the seat 70d and holding the grip portion 75 rotates the operation portion 81 forward, the case 84 rotates forward about the case rotation shaft 92. When the operation portion 81 and the case 84 are rotated, the pawl 86 rotates backward about the claw rotation shaft 86b against the urging force of the pressing spring 87, and the claw portion 86a bites in. It begins to slide on the inclined tooth surface of the tooth part 85a adjacent to the tooth part 85a.

  When the rotation of the case 84 and the like further proceeds, the claw portion 86a gets over the slidable tooth portion 85a, and is rotated forward by the urging force of the pressing spring 87 and is locked to the tooth portion 85a that has passed over ( (See FIG. 12). Further, since the reel 91 also rotates together with the rotation of the operation unit 81, the inner cable 43b whose rear end is fixed to the front end fixing unit 95 is pulled rearward and wound around the reel 91 (see FIG. 13). In conjunction with the winding of the inner cable 43b, the position (height and inclination angle) of the wind screen 76 is changed by the same action as that of the first embodiment.

  As described above, each time the claw portion 86a moves between the adjacent tooth portions 85a and is locked to the tooth portions 85a, the position of the wind screen 76 is changed stepwise. Yes.

  Further, as in the first embodiment, when the occupant further turns the operation portion 81 from this state, the pawl 86 is released from the engagement with the gear 85 (tooth portion 85a). The operation unit 81 can be returned to the initial position. The wind screen 76 is also returned to the initial position by the urging force of the return spring 31.

  According to the screen variable structure 80 according to the second embodiment described above, the same operational effects as those according to the first embodiment can be obtained. In addition, since the operation unit 81 is disposed at a position where the passenger in the riding state can operate by slightly moving his / her hand (finger), the position of the wind screen 76 can be quickly adjusted even in a short stoppage time. it can. That is, it is possible to improve convenience for the passenger.

  The operation unit 81 is provided on the handle bar 74 located in the vicinity of the left grip unit 75, but may be attached in the vicinity of the right grip unit 75. Moreover, although it may be provided in either the left or right grip part 75 itself, since the right grip part 75 is generally an accelerator grip, it is preferably provided in the left grip part 75. In addition, for example, the left grip part 75 may be rotatable in the front-rear direction, and the grip part 75 itself may be rotated as the operation part 81.

  In addition, although operation part 32, 61, 81 of each above-mentioned embodiment (a modification is also included) was what is called a lever type, it is not limited to this, For example, a dial type (rotary type), push, etc. A button-type operation unit may be provided to receive an operation input from an occupant. Such a dial-type operation unit can be suitably used in a place where it is difficult to take up the lever swinging space.

  In the ratchet mechanisms 42 and 83 of each of the above-described embodiments (including modifications), the positions of the operation units 32, 61, and 81 are held according to the operation amount. The position of the operation units 32, 61, 81 may be configured to return to the initial position every time an operation is performed by the occupant. For example, in the case of the ratchet mechanism 83 according to the second embodiment, a one-way clutch that rotates only the operation unit 81 in the anti-winding direction is incorporated (the reel 91 rotates only in the winding direction). The cable 43 is wound by reciprocatingly rotating (swinging) 81. Thereby, the rocking | fluctuation range of the operation parts 32, 61, 81 can be suppressed to the minimum, a passenger | crew's operation amount can be reduced and operativity can be improved.

  In the screen variable structures 26, 60, 80 according to each of the above-described embodiments (including modifications), the link mechanism is employed as the support 35, but the present invention is not limited to this, and the first link At least one of the 40 and the second link 41 may be changed to a slide mechanism. The slide mechanism preferably includes, for example, a rail supported by the base bracket 34 and a slider that is fixed to the wind screens 21 and 76 and slides (or rolls) on the rail. Further, rails may be provided on the wind screens 21 and 76, and a slider may be provided on the base bracket 34.

  In addition, in the screen variable structures 26, 60, 80 according to each embodiment (including modifications), two pairs of upper and lower support bodies 35 are provided, but the number of support bodies 35 arranged is arbitrary.

  In the screen variable structures 26, 60, 80 according to the above-described embodiments (including modifications), the pawls 57, 86 with respect to the tooth portions 56a, 85a when the operation portions 32, 61, 81 are completely rotated. However, instead of this, for example, a push button, a lever or the like is provided, and the pawls 57 and 86 are rotated by operating the push button or the like, so that the tooth portion You may comprise so that the latching state with respect to 56a, 85a may be cancelled | released.

  In each of the above-described embodiments (including modifications), the case where the variable screen structures 26, 60, 80 are applied to the motorcycles 1, 70 is exemplified. However, for example, a vehicle such as a four-wheel rough road vehicle The present invention can also be applied to

  The above description of each embodiment of the present invention describes a preferred embodiment of the variable screen structure 26, 60, 80 according to the present invention, and therefore various technically preferable limitations are attached. However, the technical scope of the present invention is not limited to these embodiments unless specifically described to limit the present invention. Furthermore, the components in the above-described embodiments of the present invention can be appropriately replaced with existing components, and various variations including combinations with other existing components are possible. The description of each embodiment of the present invention described above does not limit the contents of the invention described in the claims.

2 Body frame (body)
7,74 Handlebar (handle)
13 Seating seat (sitting part)
21,76 Wind screen 23 Meter stay (body)
26, 60, 80 Variable screen structure 31 Return spring (biasing means)
32, 61, 81 Operation section 33, 82 Variable mechanism 35 Support body 40 First link 41 Second link 41a Second swing shaft 41b Second support shaft 41c Operation shaft 42, 83 Ratchet mechanism 43 Cable 75 Grip section

Claims (8)

A variable screen structure for changing the position of a windscreen supported by the vehicle body via a support,
A manual operation unit,
The ratchet mechanism is configured to connect the operation unit and the support, move the support, and change and hold the position of the wind screen in a stepwise manner according to the operation amount of the operation unit. Variable mechanism,
A variable screen structure, comprising: an urging means for applying an urging force in a direction opposite to a moving direction of the ratchet mechanism. The operation unit is disposed away from the support,
The variable screen structure according to claim 1, wherein the variable mechanism includes a cable that connects the operation unit and the support and moves the support. A pair of the supports are provided,
One end of the pair of supports is connected to the vehicle so as to be spaced apart in the vertical direction, and the other end is connected to the wind screen so as to be spaced apart in the vertical direction.
The variable screen structure according to claim 2, wherein the cable is connected to the lower support.   4. The variable screen structure according to claim 3, wherein the support to which the cable is connected is a link provided so as to be swingable in the vertical direction. The link is rotatably supported on a swing shaft provided on the vehicle body side, and is rotatably supported on a support shaft provided on the windscreen.
The variable screen structure according to claim 4, wherein an operation shaft that is a connection portion between the link and the cable is provided on the opposite side of the support shaft with the swing shaft interposed therebetween.   The variable screen structure according to claim 1, wherein the operation unit is provided on a front panel disposed in front of the vehicle.   6. The variable screen structure according to claim 1, wherein the operation unit is provided in a grip part of the handle of the vehicle or in the vicinity of the grip part.   The variable screen structure according to claim 1, wherein the operation portion is provided on a lower side surface portion of a seating portion of the vehicle.

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