JP3704397B2 - Scooter type vehicle with dustproof plate - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a dustproof structure in a scooter type vehicle in which a unit swing type engine is swingably supported on a vehicle body frame below a seat.
[0002]
[Prior art]
The scooter type vehicle has a head pipe that rotatably supports the steering wheel, a down tube that extends obliquely downward from the head pipe to the rear of the vehicle body, and then bends and extends to the rear of the vehicle. The vehicle body frame comprising a pair of left and right rear frames that extend from the down tube substantially horizontally to the rear of the vehicle body, rise upward toward the vehicle, and further bend and extend rearward of the vehicle. The upper part of the unit swing type engine equipped with an air cleaner in the upper part and a V-belt transmission mechanism is supported in a swingable manner, and a seat is arranged above the engine. The top of the engine is covered with a body cover.
[0003]
[Problems to be solved by the invention]
Since the scooter type vehicle configured as described above is covered with the vehicle body cover from the lower edge of the seat to the upper part of the engine, the upper part of the engine and the periphery of the air cleaner are located inside the vehicle body cover. Since the lower part is open, the muddy water, dust, etc. rolled up by the front wheels during traveling enter the body cover through the lower part of the footrest and enter the V-belt transmission mechanism of the air cleaner and swing unit type engine. There is a risk that this muddy water, dust, etc. may invade.
In order to solve this problem, it is conceivable to take a dust-proof measure, for example, by using a labyrinth structure for the air cleaner or the outside air intake port of the V-belt transmission mechanism. . In particular, since the engine swings, interference with other parts due to an increase in size becomes a problem.
Even in this case, since the muddy water, dust and the like are flying in the body cover, it cannot be said that the dustproof effect is certain.
The present invention provides a scooter type vehicle with a dustproof plate that solves the above-mentioned problems and can reliably prevent muddy water and dust from entering the air cleaner and V-belt transmission mechanism without complicating the structure and increasing the size. It is intended to provide.
[0004]
[Means for Solving the Problems]
In order to achieve the above-described object, the scooter type vehicle with a dustproof plate according to the present invention has a low footrest between the handle (3) and the seat (5), and the lower side of the seat (5). A unit swing type engine having an engine (35c) and a transmission case (35d) provided with an air suction port (35a) is disposed so as to be swingable with respect to the vehicle body frame, and forward and side of the engine (35c). In a scooter type vehicle whose side is covered with a vehicle body cover (67), the dustproof plate (51) formed of a flexible material covers the front of the transmission case (35d) and is attached to the engine by its restoring force. It is attached to the vehicle body frame so as to come into contact with the surface .
The vehicle body frame includes a head pipe, a down tube that extends downward from the head pipe and then bends toward the rear of the vehicle body, and a rear frame that extends substantially horizontally from the down tube toward the rear of the vehicle body. Includes a rising portion that rises above the vehicle body at the rear of the horizontally extending portion, and a mounting bracket that extends in the vehicle body width direction is provided at a substantially middle portion of the rising portion of the down tube, the mounting bracket (49), A dustproof plate (51) can be attached .
A mounting strip is integrally formed on the left and right of the upper end of the dust-proof plate, a mounting hole is formed at a position corresponding to the bottom of the mounting strip in the dust-proof plate, and the mounting strip is mounted on the mounting bracket. A mounting hole can be formed for passing through.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a scooter type vehicle with a dustproof plate according to the present invention will be described with reference to an embodiment shown in the accompanying drawings.
FIG. 1 is a schematic left side view of a scooter type motorcycle employing a vehicle body frame according to the present invention, and FIG. 2 is a schematic left side view of the scooter type vehicle shown in FIG. 3 is a schematic top view of a part of the body frame and the body cover of the scooter type vehicle shown in FIG.
[0006]
(Brief description of the entire vehicle)
In the figure, reference numeral 1 denotes a scooter type vehicle in which a footrest space S defined by a lower floor with a footrest 7 having a low floor is formed between the handle 3 and the seat 5. In this scooter type vehicle, a driver seat portion 5a and a tandem seat portion 5b are formed on a seat 5 so that two people can ride.
This scooter type vehicle 1 is connected to a down pipe 11 that is composed of a head pipe 9, a pipe that extends downward from the head pipe 9 and then bends toward the rear of the vehicle body, and a tip of the down tube 11. The vehicle body frame 15 is composed of a pair of left and right rear frames 13 made of two pipes that extend substantially horizontally toward the rear, rise once in the middle, and further bend and extend toward the rear of the vehicle body.
The head pipe 9 rotatably supports a steering shaft 17 provided with a handle 3 at the upper end, and a pair of left and right front forks 21 that rotatably support a front wheel 19 are provided at the lower end of the steering shaft 17. It is fixed.
[0007]
(Explanation of mounting part between down tube and rear frame)
The rear end of the down tube 11 is fixed to a front cross pipe 23 connecting the pair of left and right rear frames 13 by appropriate means such as welding, and a bent portion 11a (hereinafter referred to as a bent portion 11a). The mounting bracket 25 for connecting the rear frame 13 is attached so as to extend downward. The mounting bracket 25 is formed by pressing a flat sheet metal into a U-shape in plan view, and connects the left and right side plates 25R, 25L having a substantially triangular shape and these side plates 25R, 25L as shown in FIG. The side plates 25R and 25L have end edges fixed to the entire bent portion of the down tube 11. Further, the left and right side plates 25R, 25L of the mounting bracket 25 are provided with openings 27 having dimensions that allow the rear frame 13 to pass therethrough. The left side plate 25L is also provided with a guide hole 28 through which a release wire 43 of a later-described seat lock mechanism 41 passes.
The pair of left and right rear frames 13 extend beyond the bent portion 11a of the down tube 11 to the front of the vehicle, and the front portions thereof are directed toward the inside of the vehicle body, that is, toward the side plates 25R and 25L of the mounting bracket 25, respectively. Are bent and inserted into the openings 27 formed in the corresponding side plates 25R and 25L, respectively, and then fixed to the mounting bracket 25 by appropriate means such as welding (FIGS. 4B and 4C). 4B and 4C are respectively an enlarged side view and an enlarged top view of the connecting portion between the down tube and the rear frame.
Thus, by providing the mounting bracket 25 extending downward to the bent portion 11a of the down tube 11 and connecting the rear frame 13 to the mounting bracket 25, the bending stress relating to the bent portion 11a of the down tube 11 is dispersed. Can do. Further, the side plates 25R and 25L of the mounting bracket 25 are formed in a substantially triangular shape as shown in FIG. 4 (a), and welded over the entire bent portion 11a of the down tube 11 as shown in FIG. 4 (b). The mounting bracket 25 itself also functions as a reinforcing member for the down tube 11a. Furthermore, since the mounting bracket 25 is extended downward and the rear frame 13 is attached to the extended portion, the footrest 7 is not narrowed as shown in FIG.
[0008]
(Explanation about rear frame)
The left and right rear frames 13 are connected to each other at three positions by the front cross pipe 23, the middle cross pipe 29, and the rear cross plate 31, and the rigidity thereof is maintained. As shown in FIG. 2, the left and right rear frames 13 are not symmetrical, and are formed so that the right rear frame 13R passes below the left rear frame 13L in a side view at the middle rising portion. As a result, in this middle rising portion, the distance between the left and right rear frames when viewed from the front right of the vehicle is widened.
A unit swing type engine 35 is swingably attached to a rising portion of the pair of left and right rear frames 13 via a link mechanism. The unit swing type engine 35 supports a rear wheel 33 at the rear part thereof, and a rear wheel right having a rear end part provided on the left side of the vehicle body is supported at the rear part of the rear frame 13 via a device 37. FIG. 15 is a schematic top view of the unit swing type engine 35. As shown in the drawing, the unit swing type engine 35 is formed by integrating an engine 35c and a transmission case 35d containing a V-belt (not shown) for transmitting the power of the engine 35c to the rear wheel 33. The transmission case 35d is entirely covered with a protective cover 35b. The protective cover 35b is formed such that its front portion protrudes further forward of the vehicle than the front end of the transmission case 35d. From the protruding portion 35e, a space between the protective cover 35b and the transmission case 35d is formed. Cooling air is taken in so that a V-belt (not shown) can be cooled via a V-belt cooling air suction port 35a formed in the transmission case 35d.
As shown in the drawing, the exhaust pipe connected to the exhaust hole of the engine 35c extends toward the right side of the vehicle body, and a muffler device 38 is connected to the rear part thereof. An air cleaner 36 is provided on the transmission case 35d. The air cleaner 36 is provided with a suction port 36a that faces obliquely forward of the vehicle body at the front end thereof, and the suction port 36a covers the inside of the vehicle body of the suction port 36a. A protective cover 36b is provided. The air sucked into the air cleaner 36 is sent to the engine 35c from the intake port of the engine 35c via the carburetor device 35f.
In the figure, reference numeral 34 denotes a rear fender that covers the upper portion of the rear wheel 33, and the rear fender 34 is supported by a transmission case 35 d and a muffler device 38. Mudguard flaps 34a and 34b extending in the vehicle width direction are provided at the rear part of the rear fender 34, and mud or the like adhering to the rear wheel 33 by the mudguard flaps 34a and 34b is transferred from the side surface of the rear wheel 33 to the transmission case 35d. It is configured to prevent entry into the upper space.
[0009]
(Relationship between rear frame and storage box)
The rear cross plate 31 of the rear frame 13 is obtained by pressing a sheet metal into a U-shape when viewed from the front of the vehicle. As shown in FIGS. 3, 5, and 6, the left and right side plates 31R and 31L and these side plates It comprises a support plate 31a for connecting 31R and 31L, and the end portions of both side plates 31R and 31L are welded to the upper surface of the rear frame 13 so as to rise from the rear frame 13 to the upper side of the vehicle body. FIG. 6 is an enlarged top view of the rear part of the vehicle with the vehicle body cover and the seat removed. FIG. Further, support portions 31b bent toward the inside of the vehicle are formed at the front portions of the side plates 31R and 31L of the rear cross plate 31, respectively.
A mounting bracket 29a made of a U-shaped plate material is fixed near the upper center of the middle cross pipe 29 in the rear frame 13 by appropriate means such as welding (see FIGS. 2 and 3). On the support plate 31 a of the rear cross plate 31, a storage box 39 is fixed by a suitable means such as a bolt, and the storage box 39 functions as a load receiver for the seat 5. In addition, the storage box 39 includes leg portions 39a that are mounted on the left and right support portions 31b of the rear cross plate 31 when attached, whereby the storage box 39 is also supported by the front support plate 31b of the rear cross plate 31 (FIG. 3). , FIG. 5 and FIG. 6).
As shown in FIG. 2, the storage box 39 has an opening 39 b on the upper surface and has a box shape opened upward, and a lower portion of the storage box 39 is attached to a storage portion 39 c such as a helmet that falls between the pair of left and right rear frames 13. It has become. In addition, the storage box 39 supports the front end of the seat 5 at the front end of the opening 39b so as to be rotatable, thereby causing the seat 5 to function as a lid member of the storage portion 39c.
[0010]
(Explanation about the seat lock mechanism)
A seat lock mechanism 41 that can lock the seat 5 in a closed state is provided below the rear cross plate 31 in the rear frame 13. The locking mechanism 41 is located below the rear support plate 31a in the rear cross plate 31, and is attached to the back surface of the seat 5 inserted from the opening 32 formed in the rear support plate 31a when the seat 5 is closed. The provided lock bar 5c is configured to lock on the lower side of the rear support plate 31a. The lock mechanism 41 is configured to be unlocked via a release wire 43 by operating a release switch provided at the front of the vehicle body. The release switch is provided on the main switch fixed to the head pipe 9 and exposed from the vehicle body cover (leg shield 63), and can be operated by a key (not shown). The release wire 43 extends downward in the vehicle body while winding around the head pipe 9 and the down tube 11, and is formed in a guide hole formed in the left plate 25 </ b> L of the mounting bracket 25 provided in the bent portion 11 a of the down tube 11. 28 passes from the outside of the left plate 25L toward the inside, and then enters the rear frame 13R from the front open end of the right rear frame 13R connected through the right plate 25R, passes through the rear frame 13R, The rear frame 13R extends from the rear open end of the rear frame 13R to the outside of the rear frame 13R and extends to a locking mechanism provided on the rear cross plate 31 (see FIGS. 2, 3 and 6). As a result, most part of the release wire 43 extends through the rear frame 13, so that mischief such as wire cutting can be prevented, and the antitheft property of the luggage stored in the storage portion 39c is further improved. Can be raised. Further, since the rear frame 13 is made of a pipe material, and this rear frame 13 is further connected to a mounting bracket 25 provided on the down tube 11, a release wire 43 (necessary to the rear frame 13 is provided to prevent mischief. Accordingly, it is not necessary to perforate the rear frame 13 when passing other wires), so that the rear frame 13 can be easily used as a wire passage while maintaining the rigidity of the rear frame. It is possible.
[0011]
(Relationship between rear cross plate and other components in rear frame)
As shown in FIGS. 2, 5, and 6, a fuel tank 44 is disposed behind the storage box 39 between the pair of left and right rear frames 13. Both end portions of a substantially U-shaped protection frame 45 are attached to the rear cross plate 31 in the rear frame 13 so as to cover the fuel tank 45, so that the fuel tank 44 is attached by the protection frame 45. The rear part is also protected forward by the rear cross plate 31. A mating flange 44 a of the fuel tank 44 is fastened to the mounting surface of the protective frame 45 on the rear cross plate 31.
Furthermore, as shown in FIG. 6, substantially U-shaped standing handles 47 are attached to both ends of the rear support plate 31a in the rear cross plate 31 in the vehicle width direction at the positions of the mounting bolts 47a. The standing handle 47 is also fixed to the protective frame 45 at an intermediate portion thereof.
[0012]
(Explanation on dustproof plate)
As shown in FIG. 2, a bracket 49 extending in the vehicle body width direction is attached to a substantially middle portion of the rising portion of the left rear frame 13, and a flexible dustproof plate 51 is attached to the bracket 49. Is attached. FIG. 7 is a partially enlarged view of a dust-proof plate mounting portion in a vehicle, and FIG. 8 is a schematic front view of the dust-proof plate. As shown in FIG. 8, at the upper end of the dustproof plate 51, two attachment bands 51a, 51b, 51c are integrally formed on the right side and one on the left side as viewed from the front of the vehicle body. Corresponding attachment holes 51d, 51e, 51f are formed below the attachment strips 51a, 51b, 51c in 51, respectively. Each of the attachment strips 51a, 51b, 51c is integrally formed with a locking portion having a width larger than the diameter of the attachment holes 51d, 51e, 51f at the tip. Thereby, after passing each strip | belt-shaped body 51a, 51b, 51c through the mounting hole 49a, 49b, 49c, 49d formed in the mounting bracket 49, the front-end | tip part of each strip | belt-shaped body 51a, 51b, 51c is attached to dust-proof plate 51 itself. The dust-proof plate 51 is detachably attached to the attachment bracket 49 by passing through the attachment holes 51d, 51e, 51f. 1, 2, and 7, the mounting bracket 49 extends from the left rear frame 13L once toward the rear of the vehicle body, and its rear portion is bent in the vehicle width direction. It passes under the footrest 65a. The dust-proof plate 51 attached to the mounting bracket 49 covers a front side portion of the transmission case 35d in the unit swing type engine 35, and a protective cover 35b for taking cooling air into the V-belt cooling air suction hole 35a of the transmission case 35d. The air intake protrusion 35e and the air cleaner 36 provided above the engine 35 are formed in a shape that can prevent inhalation of dust, splashing water, and the like. The dustproof plate 51 is preferably brought into contact with the surface of the engine 35 by its restoring force when attached to the attachment bracket 49, so that even when the engine 35 swings during traveling, the engine 35 Following the movement, it is always possible to maintain the state of contact with the surface of the engine 35, and to further enhance the dustproof and waterproof effect. Since the dust-proof plate 51 is formed of a flexible member, it can be appropriately deformed even in a space with a small gap. Also, since the dust-proof plate 51 is easy to attach and detach, it should be periodically removed and cleaned. Is possible. In addition, since the band-shaped bodies 51a, 51b, 51c formed integrally and the mounting holes 51d, 51e, 51f drilled below the band-shaped bodies are configured to be attached to the bracket, there is no special fixing member. However, it can be easily attached. As described above, the air cleaner 36 is uniquely provided with the suction port protection cover 36b. However, by providing this dustproof plate 51, mud suction or other dust caused by mud splashes from the front side of the vehicle is provided. It becomes possible to further enhance the effect of preventing the suction.
[0013]
(Explanation about body cover)
The vehicle body frame 15 in the scooter type vehicle 1 configured as described above is covered with a vehicle body cover 60 as shown in FIG.
The vehicle body cover 60 includes a front cover 61 that covers the front of the head pipe 9, and
A leg shield 63 that covers the rear of the head pipe 9 and the rear of the down tube 11, defines the front end of the footrest space S, and forms a part of the footrest 7 at the lower part thereof;
A floor cover 65 that is connected to the lower end of the leg shield 63 and covers the upper part of the substantially horizontal front side portion of the pair of left and right rear frames 13, defines the lower end of the footrest space S, and constitutes the footrest 7 together with the leg shield 63. ,
A pair of left and right under covers 66 extending downward from both side edges of the floor cover 65 and covering the side of the space below the floor cover 65;
A seat front lower cover 67 that rises upward from the rear end portion of the floor cover 65 to the lower end of the front portion of the seat so as to cover the lower portion of the front portion of the seat 5 and demarcates the rear end of the footrest space S;
A pair of left and right side covers 69 extending from the rear end of the seat front lower cover 67 toward the rear of the vehicle body so as to cover a region between the seat 5 and the engine 35.
[0014]
(Explanation about front cover and leg shield)
The front cover 61 extends to the front of the vehicle up to a position covering the front wheel 19, and its front end is shaped to be tapered in plan view toward the front of the vehicle body, and is a leg fixed to the head pipe 9 or the like. It is fixed to the shield 63.
A storage portion 61a that can store small items such as tools is formed at the front end portion of the front cover 61. The storage portion 61a has a lid member 61b that is flush with the surface of the front cover 61 when closed. Can be opened and closed. The storage portion 61a can be configured not only to store small items such as tools but also to be used for valve replacement of the flasher 62 (see FIG. 1).
Further, the leg shield 63 extends downward from the lower side of the handle 3 while being inclined obliquely toward the front of the vehicle, and has a substantially square shape in side view in the vicinity of the height corresponding to the attachment portion of the down tube 11 with respect to the head pipe 9. A central portion 63a of the plate member 63b that curves and extends further downward while being inclined obliquely rearward, passes through both sides of the rear frame mounting bracket 25 attached to the down tube 11, and reaches the front end portion of the floor cover 65. The head pipe 9 and the down tube 11 are formed in a shape bulging rearward in accordance with the shape of the down tube 11, and the upper part thereof is fixed to the bracket 9 a fixed to the head pipe 9 at the position of the bolt 64 b, and the lower part is It is fixed to a bracket (not shown) fixed to the rear frame 13 and is assembled with the front cover 63 in the middle. Together, they are fixed to the front cover 63 at the position of the bolt 64a (see FIG. 9 and FIG. 10A), FIG. 9 is a view of the leg shield 63 viewed from the rear of the vehicle body, and FIG. It is AA sectional drawing.).
As shown in FIG. 9, the upper portion of the convex portion 63 a swelled in a convex shape is formed over substantially the entire area of the leg shield 63 corresponding to the head pipe 9, and the lower portion corresponding to the down tube 11. Is formed into a shape that tapers downward from the wide upper portion, and a relatively wide flat surface portion 63b is formed on both sides thereof, and the flat surface portion 63b forms a part of the footrest 7. As a result, the left and right spaces sandwiching the down tube 11 in the footrest space expand toward the front of the vehicle body, and when the driver is seated on the seat, the legs can be extended to the left and right spaces sandwiching the down tube 11.
[0015]
(Explanation about the front trunk)
A front trunk 70 is formed on an upper portion of the convex portion 63 a of the leg shield 63. The front trunk 70 includes a shallow recess 71 wide in the vehicle width direction and left and right storage recesses 73 and 74 formed on the bottom surface 71 a of the recess 71. The left and right storage recesses 73 and 74 are located on both sides of the head pipe 9 so as to avoid the head pipe 9 and are deeply recessed from the bottom surface 71a of the recess 71 toward the front of the vehicle.
FIG. 10B is a partial cross-sectional view of a portion corresponding to the front trunk of the vehicle body cover, and FIG. 10C is a cross-sectional view taken along line BB in FIG. 10B. As shown in the drawing, a storage portion 76 for a P-type lock member 75 is formed in the storage recess 71 on the left side of the vehicle body along a side wall 74a on the head pipe 9 side. The P-type lock member is a lock member for preventing theft by preventing the wheels from rotating when the vehicle is parked. The storage portion 76 is a cylinder of the P-type lock member 75 in which an arm storage space 76a for storing the arm portion 75a of the P-type lock member 75 and a lower portion of the front end wall 76b of the arm storage space 76a are further recessed forward of the vehicle. And a cylinder storage space 76c for storing the portion 75b. On the front end wall 76b of the lock member storage portion 76, a lock member gripping means 77 comprising two grip claws for gripping the arm portion 75a of the lock member 75 is integrally formed. The lock member gripping means 77 does not necessarily have to be integrally formed as in this embodiment. For example, the lock member gripping means 77 can be deformed with a C-shaped cross section like the lock member gripping means 90 shown in FIG. It may be formed separately from the front trunk 70, which includes a gripping portion 90 and a mounting portion 90 b having a deformable locking portion having a large diameter at the tip. In FIG. 10D, reference numeral 91 denotes a front end wall of the lock member storage portion in the front trunk.
With the above configuration, when the user inserts the P-type lock member 75 along the side wall 74a on the head pipe side of the left front trunk 74 in a state where the cylinder portion 75b faces the front of the vehicle, The mold lock member 75 is gripped by the lock member gripping means 77 and stored and gripped in the lock member storage portion 76. Since the lock member 75 is gripped by the lock gripping means 77 when stored, the lock member 75 does not flutter during traveling of the vehicle. Further, since the lock member storage portion 76 is formed along the side wall 74a on the head pipe 9 side close to the attachment portion of the leg shield 63 to the head pipe 9, the rigidity is high, and a reinforcing member is provided or the material is changed. For example, a heavy object such as the P-type lock member 75 can be accommodated without having to increase the rigidity of the front trunk.
A lid member 78 is attached to the recess 71 of the leg shield 63 so as to be openable and closable. When the lid member 78 is closed, it is flush with the surface of the convex portion 63a of the leg shield 63 and is formed into a shape constituting a part of the convex portion 63a (see FIG. 1). The lower end of the recess 71 is rotatably supported by a pair of left and right hinge portions 71b positioned at the lower end of the recess 71.
The lid member 78 is provided with a cylinder lock 80, and a locking portion 79 extending downward and a cylinder support portion 79 a are integrally formed at a portion of the front trunk 70 corresponding to the cylinder lock 80. Has been. The cylinder support portion 79a is formed in a substantially U shape so as to guide the side portion of the cylinder lock 80 when the lid member 78 is closed. Thus, after the lid member 78 is closed, when the cylinder lock 80 is rotated by a key operation (not shown), the hook of the cylinder lock 80 is locked to the locking portion 79 and the lid member 78 is locked. Further, for example, even if another person forcibly shifts the lid member 78 left and right after locking to remove the hook of the cylinder lock 80 from the locking portion 79, the cylinder support portion 79 a is not closed when the lid member 78 is closed. Since the side portion of 80 is guided, the lid member 78 cannot be shifted in the left-right direction, and the hook of the cylinder lock 80 cannot be removed from the locking portion 79a. By configuring the lid member 78 of the front trunk 70 to be locked in this way, it is possible to improve the anti-theft property of the stored items in the front trunk 704, and the P-type lock member 75 can be provided permanently. .
Note that the lock member to be housed in the front trunks 73 and 74 is not limited to the P-type lock member 75 described above. Therefore, the lock member housing portion 76 also includes, for example, an articulated cycle lock, etc. It can be formed in a shape corresponding to various types of locking members. Also, the lock member gripping means 77 can be formed in a shape corresponding to the lock member to be stored.
[0016]
(Explanation about floor cover)
The floor cover 65 extends from the rear end of the leg shield 63 to the rear of the vehicle body along a portion of the rear frame 13 that extends substantially horizontally on the front side, and its rear portion avoids a rising portion of the rear frame 13. It is cut out in a U-shape, divided into left and right sides, and further extended rearward of the vehicle (see FIG. 3).
FIG. 11 shows a partially enlarged view of the rear portion of the floor cover 65 and the seat front lower cover 67 as seen from the front side of the vehicle.
As shown in FIGS. 11, 1, and 3, leg portions 65 a each protruding in a trapezoidal shape in a side view are formed on the rear end portion of the floor cover 65 that is divided into left and right sides. The footrest 65 a is a seat that sits on the tandem seat 5 b of the seat 5. The footrest 65a is used by a passenger seated on the tandem seat 5b of the seat 5 to place his / her foot.
The floor cover 65 is integrally formed with a battery storage case 65b that falls between the pair of left and right rear frames 13 at the center, and a shallow recess 65c (hereinafter referred to as cover mounting) in which the cover 81 is fitted around the storage case 65b. (Referred to as part 65c). In addition, although not shown in the drawings, a shallow groove 65c can be formed in the shallow recess 65c.
The cover 81 has a substantially inverted L-shape in side view in which an upper closing portion 81a for closing a maintenance opening 67a of a lower front seat cover 67, which will be described later, and a lower closing portion 81b for closing the storage case 65b are integrally formed. (Refer to FIG. 12, FIGS. 12 (a) and 12 (b) are a top view and a side view, respectively) of the cover 81, and the floor cover 65 and the seat front lower cover 67 in the attached state. It is formed into a shape that is flush with the surface and forms part of the surface of the covers 65 and 67 (see FIGS. 1 and 3).
In addition, a plurality of deformable holding ribs 81c that are inclined obliquely rearward are integrally formed on the back surface of the cover 81 corresponding to the storage case 65b, and when the cover 81 is attached, The holding ribs 81c are pressed against the upper surface of the battery 82 stored in the battery storage case 65b to be deformed, and the stored force of the battery can be fixed in the storage case 65b by the restoring force (FIG. 13, FIGS. 13A and 13B are conceptual diagrams of the cover and the lower case showing a state before the cover is attached and a state after the cover is attached, respectively.
The holding rib 81c is preferably formed to be inclined obliquely so as to be easily deformed. However, the holding rib 81c is not necessarily inclined obliquely rearward as in this embodiment, and is inclined obliquely forward or obliquely forward. Also good. Also, the holding rib 81c can be changed to other holding means such as an elastic member, for example.
If the holding rib 81c is inclined obliquely rearward as in this embodiment, it can be cut in the direction of arrow A in FIG. It is preferable in manufacture.
[0017]
(Explanation about footrest surface and footrest mat)
Shallow recesses 63c and 65d for mounting the footrest mat 8 are formed on the upper surface of the flat surface portion 63b and the floor cover 65 of the leg shield 63 configured as described above. The footrest mat 8 is mounted on the mat mounting recesses 63c and 65d. The footrest mat 8 covers the entire footrest surface on the footrest 7.
[0018]
(Explanation regarding the maintenance opening of the front lower cover)
As shown in FIG. 11, a maintenance opening 67a formed at the center of the lower front seat cover 67 is formed wider than the engine head so that maintenance work such as plug replacement can be easily performed simply by removing the cover 81. I have to. Further, as described above, the pair of left and right rear frames 13 is configured such that the middle rising portion of the right rear frame 13R passes rearward from the middle rising portion of the left rear frame 13L. The rear frame 13 does not get in the way during maintenance, and maintenance work is very easy to perform.
[0019]
(Explanation regarding the air intake surface of the front lower cover)
Further, as shown in FIG. 11, the seat front lower cover 67 is curved in a substantially U shape so as to cover the lower portion of the front portion of the seat 5, and both side portions thereof are bent once in the vehicle width direction. After that, it is bent again toward the rear of the vehicle to form a surface 67b facing the front of the vehicle (hereinafter, this surface is referred to as an air intake surface 67b). FIG. 14 is a side view of the seat front lower cover. The air intake surface 67b is connected to a footrest portion 65a (that is, a footrest surface) provided at the left and right rear ends of the floor cover 65, and then once obliquely upward along the shape of the floor cover 65 from there. It is formed into a shape that extends rearward and then curves at an acute angle so as to extend obliquely upward toward the front of the vehicle and reach the lower end of the seat 5.
In addition, two air intake holes 83 and 85 are formed in the left and right air intake surfaces 67b that extend obliquely upward toward the front of the vehicle. The left and right air intake surfaces 67b are located outside the left and right rear frames 13, and the air intake holes 83 and 85 formed in the air intake surface 67b are located above the engine 35 and the air cleaner 36. (See FIG. 1). Thereby, the traveling wind taken into the space surrounded by the rear cover 69 from the air intake holes 83 and 85 during traveling of the vehicle falls between the left and right rear frames 13 in the storage box 39 and the rear cover. 69, the air flows backward, and acts to release the air warmed by the engine 35 in the vehicle direction. Further, since the air intake holes 83 and 85 are positioned above the air cleaner 36, the traveling wind taken from the air intake holes 83 and 85 does not adversely affect the suction port 36a of the air cleaner 36. Absent.
The seat front lower cover 67 is stepped on both sides to form an air intake surface 67b facing the front of the vehicle, and the air intake surface 67b is connected to the footrest surface when the cover is assembled. Therefore, the footrest space S can be widened to the left and right rear with the center of the lower seat front cover 67 interposed therebetween.
[0020]
(Explanation regarding body cover material)
In the vehicle body cover 60 configured as described above, the front cover 61, the leg shield 63, and the rear cover 69 are preferably configured by a paint cover, and the floor cover 65 and the front seat lower cover 67 may be configured by a colored resin. . When the floor cover 65 and the seat front lower cover 67 are made of colored resin in this manner, the air intake surfaces 67b on both sides of the seat front lower cover 67 extend from the footrest surface to the lower end of the seat 5, so that the driver In addition, the entire rear part of the footrest space S that is easily damaged by the passenger's feet can be covered with a colored resin that is not easily damaged (see FIG. 1), and the vehicle body is less damaged during use.
[0021]
(Example effect)
According to the present embodiment described above, two attachment bands 51a, 51b, 51c are integrally formed on the upper end of the dust-proof plate 51, one on the right side and one on the left side, and each attachment band 51a. , 51b, 51c are respectively provided with corresponding mounting holes 51d, 51e, 51f, and the belt-like bodies 51a, 51b, 51c are provided in the mounting holes 49a, 49b, 49c, 49d formed in the mounting bracket 49, respectively. After passing, the dust-proof plate 51 can be attached by passing the tips of the strips 51, 51b, 51c through the attachment holes 51d, 51e, 51f of the dust-proof plate 51 itself. Also, there is an effect that it can be easily attached to an existing vehicle.
In this embodiment, since the dust-proof plate 51 is formed of a flexible member, the dust-proof plate 51 can be appropriately deformed even in a space with a small gap. It can be removed and washed.
Further, in this embodiment, the engine 35 and the air cleaner 36 are each independently provided with suction port protective covers 35b, 36b, but the dustproof plate 51 prevents the mud from being sucked by mud splashes and other dusts. Can be further enhanced.
[0022]
(Other application)
In the present embodiment, a band-shaped member is integrally provided in the dust-proof plate 51, and an attachment hole through which the band-shaped member is passed is formed below the band-shaped member, but the structure of the dust-proof plate is not limited to this embodiment, Of course, any shape is acceptable.
Furthermore, in this embodiment, a mounting bracket extending in the vehicle width direction is provided at the rising portion of the rear frame, and the dustproof plate is attached to the mounting bracket. However, the portion where the dustproof bracket is attached is limited to the mounting bracket. It is not a thing, but if it is a part which can cover the engine front lower part in the attached state, it can be attached to arbitrary positions.
[0023]
【The invention's effect】
According to the scooter type vehicle with a dustproof plate according to the present invention configured as described above, there is a low floor footrest between the handle (3) and the seat (5), and this seat (5) A unit swing type engine having an engine (35c) and a transmission case (35d) provided with an air suction port (35a) below is disposed so as to be swingable with respect to the vehicle body frame, and the front of the engine (35c) and In a scooter type vehicle whose side is covered with a vehicle body cover (67), the dust-proof plate (51) formed of a flexible material covers the front of the transmission case (35d) and is attached to the engine by its restoring force. since attached to the body frame so as to be in contact with the surface, can prevent the intrusion itself like mud, water and dust into the vehicle body cover, reliably prevent child entry of dust into the transmission case There is an effect that it is.
Further, since the dustproof plate is made of a flexible material, there is an effect that the dustproof plate can be provided at an optimum position without causing a problem of interference with other components.
Further, the dust-proof plate is made of a flexible material, and at the time of installation, the front of the transmission case (35d) is covered and attached to the vehicle body frame so as to come into contact with the surface of the engine with its restoring force. Even when it swings during traveling, it can follow the movement of the engine and always keep in contact with the surface of the engine, thereby enhancing the dustproof and waterproof effect.
Further, a mounting strip is integrally formed on the left and right of the upper end of the dustproof plate, a mounting hole is formed at a position corresponding to the lower side of the mounting strip in the dustproof plate, and the mounting bracket is attached to the mounting bracket. By forming the attachment hole for passing the belt-like body, the dustproof plate can be attached and detached with a simple structure, and the attachment / detachment work can be simplified.
[Brief description of the drawings]
FIG. 1 is a schematic left side view of a scooter type motorcycle employing a body frame according to the present invention.
FIG. 2 is a schematic left side view of the scooter type vehicle shown in FIG. 1 with a body cover removed.
3 is a schematic top view of a part of a vehicle body frame and a vehicle body cover of the scooter type vehicle shown in FIG. 1. FIG.
4A is a schematic perspective view of a mounting bracket, FIG. 4B is an enlarged side view of a connecting portion between the down tube and the rear frame, and FIG. 4C is an enlarged top view of a connecting portion between the down tube and the rear frame. It is.
FIG. 5 is an enlarged side view of the vicinity of a rear cross plate in the rear frame.
FIG. 6 is an enlarged top view of the rear portion of the vehicle with the vehicle body cover and seat removed.
FIG. 7 is a partial enlarged view of a dustproof plate mounting portion in a vehicle.
FIG. 8 is a schematic front view of a dustproof plate.
FIG. 9 is a view of the leg shield as viewed from the rear of the vehicle.
10A is a cross-sectional view taken along line AA in FIG. 9, FIG. 10B is a partial cross-sectional view of a portion corresponding to the front trunk of the vehicle body cover, and FIG. 10C is a cross-sectional view taken along line BB in FIG. It is sectional drawing.
FIG. 11 is a partially enlarged view of the rear portion of the floor cover 65 and the lower front seat cover 67 as viewed from the obliquely forward side of the vehicle.
12A and 12B are a top view and a side view of a cover 81, respectively.
FIGS. 13A and 13B are conceptual diagrams of a cover and a lower case showing a state before the cover is attached and a state after the cover is attached.
FIG. 14 is a side view of a seat front lower cover.
FIG. 15 is a schematic top view of a unit swing engine 35.
DESCRIPTION OF SYMBOLS 1 Scooter type vehicle 3 Handle 5 Seat 5a Driver seat part 5b Tandem seat part 7 Foot rest base 8 Foot rest mat 9 Head pipe 9a Bracket (for leg shield attachment)
11 Down tube 11a Bending portion 11b Support flange 13 Rear frame 15 Body frame 17 Steering shaft 19 Front wheel 21 Front fork 23 Front cross pipe 25 Mounting bracket 25R Side plate (right)
25L side plate (left)
25M connecting plate 27 connecting opening 28 guide hole 29 middle cross pipe 29a bracket (for supporting sheet receiving member)
31 Rear cross plate 31R Side plate (right)
31L Side plate (left)
31a Rear support plate 31b Front support plate 32 Opening 33 Rear wheel 34 Rear fender 34a Mud protection flap 34b Mud protection flap 35 Swing unit engine 35a V belt cooling air inlet 35b Protective cover 35c Engine 35d Power transmission case 35e Air intake projection 35f Carburetor device 36 Air cleaner 36a Suction port 36b Suction port protective cover 37 Rear wheel suspension device 38 Muffler device 39 Storage box 39a Leg portion 39b Seat receiving portion 39c Storage portion 41 Lock mechanism 43 Release wire 44 Fuel tank 45 Protection frame 46 Number plate attachment Support plate 47 Standing handle 47a Mounting bolt 49 Bracket (for mounting dustproof plate)
51 Dust proof plate 60 Car body cover 61 Front cover 61a Storage part 61b Cover member 62 Flasher 63 Leg shield 63a Convex part 63b Plane part 63c Mat mounting concave part 64a Mounting bolt (front leg seal)
64b Mounting bolt (head pipe bracket)
65 Floor cover 65a Footrest portion 65b Battery storage case 65c Cover mounting portion 65d Mat mounting recessed portion 66 Under cover 67 Seat front lower cover 67a Maintenance opening 67b Air intake surface 69 Side cover 70 Front trunk 71 Recessed portion 71a Bottom surface 71b Hinge portion 73 Storage recess (right side)
74 Storage recess (left side)
74a Side wall 75 on the head pipe side P-type lock member 75a Arm portion 75b Cylinder portion 76 Lock member storage portion 76a Arm storage space 76b Front end wall 76c Cylinder storage space 76d Mounting hole 77 Lock member gripping means 78 Lid member 79 Locking portion 79a Cylinder Support part 80 Cylinder lock 81 Reverse L time-like cover 81a Upper closing part 81b Lower closing part 81c Holding rib 82 Battery 83 Air intake hole 85 Air intake hole

Claims (3)

Having a low footrest between the handle (3) and the seat (5),
A unit swing type engine having an engine (35c) and a transmission case (35d) provided with an air suction port (35a) below the seat (5) is disposed so as to be swingable with respect to the vehicle body frame,
In the scooter type vehicle in which the front and sides of the engine (35c) are covered with a vehicle body cover (67),
The dust-proof plate (51) formed of a flexible material is attached to the vehicle body frame so as to cover the front of the transmission case (35d) and to come into contact with the surface of the engine with its restoring force when attached. Scooter type vehicle with dustproof plate. The body frame is
A head pipe (9);
A down tube (11) that extends downward from the head pipe (9) and then bends toward the rear of the vehicle body;
A rear frame (13) extending substantially horizontally from the down tube (11) toward the rear of the vehicle body,
The rear frame (13) includes a rising portion that rises above the vehicle body at the rear of the horizontally extending portion;
A mounting bracket (49) extending in the vehicle body width direction is provided at a substantially middle portion of the rising portion of the down tube (11), and a dustproof plate (51) is attached to the mounting bracket (49). The scooter vehicle with a dustproof plate according to 1. Mounting strips (51a, 51b, 51c) are integrally formed on the left and right of the upper end of the dustproof plate (51),
Mounting holes (51d, 51e, 51f) are formed at positions corresponding to the lower side of the mounting strips (51a, 51b, 51c) in the dustproof plate (51),
The mounting bracket (49) is formed with mounting holes (49a, 49b, 49c, 49d) for passing the mounting strips (51a, 51b, 51c). Scooter type vehicle with dustproof plate.

Images