JP5423154B2 - Motorcycle frame cover mounting structure - Google Patents

Description

  The present invention relates to a frame cover mounting structure for a motorcycle.

Conventionally, when a rear combination lamp including a frame cover that covers a rear frame of a motorcycle from the rear, a rear fender that covers a rear wheel, a tail lamp, and the like is attached to a vehicle, various attachment methods are used for each motorcycle.
For example, in a motorcycle disclosed in Patent Document 1, a rear cowl as a frame cover is attached to the rear part of a pair of left and right seat rails together with a grab rail. A rear fender that covers the rear wheel is attached to the rear end of the seat rail below the rear cowl. At this time, the front side portion of the rear fender and the front portion of the side wall of the rear cowl are connected by bolts. Further, a rear combination lamp as a tail lamp is disposed between the rear fender and the rear cowl. The rear combination lamp is attached to the vehicle by a method different from the above-described joint in which the rear fender and the rear cowl are connected by bolts.

JP-A-10-236362

However, in the motorcycle disclosed in Patent Document 1 described above, since the rear combination lamp is attached to the vehicle alone, the labor for attaching the rear combination lamp is increased, and an additional fixing screw or the like is required for installation. Or
Also, depending on where and how the frame cover, rear fender, and rear combination lamp are attached, the rear of the vehicle may look bad, or the fixing screws may become loose due to the effects of vibration caused by the motorcycle running. is there.

The present invention has been made in view of the above-described problems, and an object of the present invention is to make it possible to easily attach components constituting the rear part of a motorcycle and improve the appearance of the rear part of the vehicle. And
It is another object of the present invention to prevent the fixing screw from loosening due to, for example, the influence of vibration caused by running of each component at the rear of the vehicle.

A motorcycle frame cover mounting structure according to the present invention includes a frame cover that covers a rear side of a vehicle body, a rear fender that covers a rear wheel, and a rear combination lamp that is positioned behind the frame cover and above the rear fender. The rear fender is attached to the rear frame by fixing the mounting portion of the rear fender and the bracket portion of the rear frame, and mounting stays formed at both left and right end portions on the lower side of the rear combination lamp. The rear combination lamp and the frame cover are assembled into a unit so that the portion overlaps the upper side of the frame cover, and the unitized rear combination lamp and the frame cover are connected to the rear of the rear frame. Covering the rear fen In a state of being polymerized on the upper side, the central of the upper in the lateral direction of the rear combination lamps and the frame cover is attached to the rear frame, solid with said rear fender and polymerized the frame cover has said rear combination lamp It is fixed by a fixed member.
Further, the rear fender, the frame cover, and the rear combination lamp are superposed in order from the lower side of the vehicle body.
Further, the rear fender and the rear combination lamp are fastened by a fixing screw as the fixing member via a boss portion, and the frame cover is formed with a hole through which the boss portion is inserted. .
In addition, a flat mounting portion formed on both sides of the frame cover and folded inward and a flat mounting portion projecting outward formed on both sides of the rear fender are overlapped and fixed by a fixing member. It is characterized by that.

According to the present invention, since the frame cover, the rear fender, and the rear combination lamp are superposed and fixed by the fixing member, it is possible to reduce the trouble of attaching the frame cover, the rear fender, and the rear combination lamp to the vehicle. Easy installation. Further, by superposing the frame cover, the rear fender, and the rear combination lamp, there is no gap between the three persons, so that the appearance of the rear part of the vehicle can be improved.
In addition, according to the present invention, for example, the rear fender, the frame cover, and the rear combination lamp are polymerized in this order from the lower side of the vehicle body, so that it is possible to perform polymerization in consideration of the order when each component is attached to the vehicle. Each component can be easily attached to the vehicle.
Further, according to the present invention, for example, the rear fender and the rear combination lamp are tightened by a fixing screw as a fixing member via the boss portion, and the frame cover is formed with a hole through which the boss portion is inserted. Since the rear fender and the rear combination lamp are firmly fixed by the fixing screws and are arranged in the frame cover between them, the fixing screws are not loosened due to the influence of vibration etc. rather than simply superposing the three members and fixing them. can do.
Further, according to the present invention, for example, a flat mounting portion formed on both sides of the frame cover and folded inward, and a flat mounting portion formed on both sides of the rear fender and projecting outward are overlapped. And since it fixed with the said fixing member, the appearance of a vehicle rear part can be improved.

1 is a side view of a scooter type motorcycle according to an embodiment. 1 is a front view of a scooter type motorcycle according to an embodiment. 1 is a perspective view of a vehicle rear portion of a scooter type motorcycle according to the present embodiment. It is a perspective view of the rear fender and rear frame concerning this embodiment. It is a perspective view of the rear combination lamp concerning this embodiment. It is a perspective view of the frame cover concerning this embodiment. It is sectional drawing which shows the attachment state of the rear fender, frame cover, and rear combination lamp which concern on this embodiment.

  Hereinafter, modes for carrying out the present invention will be described. 1 and 2 are a side view and a front view, respectively, of a scooter type motorcycle (hereinafter referred to as a vehicle) 1 to which the present invention is applied. First, a schematic configuration of the vehicle 1 will be described with reference to FIGS. 1 and 2. In the drawings used in the following description including these figures, the front of the vehicle is indicated by an arrow Fr, the rear of the vehicle is indicated by an arrow Rr, and the lateral right side of the vehicle is indicated by an arrow R as necessary. The left side of the vehicle is indicated by an arrow L.

  The vehicle 1 is configured by forming a vehicle body skeleton by a plurality of vehicle body frames made of steel or aluminum alloy and mounting various parts on the vehicle body frame. The down tube pipe 2, which is a part of the vehicle body frame, has a front end coupled to the steering head pipe 3 and extends downward from the steering head pipe 3, and then curves and extends substantially rearward. A pair of left and right rear frames 4 that are part of the vehicle body frame are coupled to the rear side of the down tube pipe 2, and each extends obliquely rearward and upward.

  The steering head pipe 3 supports a front fork 5 so that the front fork 5 can rotate. A handlebar is fixed to the upper end of the front fork 5, and a front wheel 7 is rotatably supported on the lower end side. A brake disk 8 that rotates integrally with the front wheel 7 is installed.

  An engine bracket 9 is formed at the rear end of the down tube pipe 2. The engine bracket 9 supports a swing unit type engine 11 via a stay 10, and the swing unit type engine 11 is moved up and down around a support portion of the stay 10. It can be swung in the direction. The swing unit type engine 11 is a unitization of a cylinder assembly 12, a crankcase 13, and a transmission unit 14 including a transmission, and supports a rear wheel 15 and a shock absorber 16 between the rear frame 4. By mounting, it also has a function as a swing arm.

  More specifically, an engine bracket 9 for supporting the swing unit type engine 11 is formed integrally with the down tube pipe 2 at the rear end of the down tube pipe 2 or the rear end of the down tube pipe 2. To the rear of the vehicle. The engine bracket 9 further fixes a stay 10 and supports the swing unit type engine 11 so that the stay 10 can swing in the vertical direction. A swing pivot portion 17 is formed integrally with the crankcase 13 of the swing unit type engine 11, and the swing pivot portion 17 is pivotally supported by the stay 10. The speed change unit 14 located behind the vehicle in the swing unit type engine 11 supports the rear wheel 15 so as to be rotatable on the inner side surface in the vehicle width direction, and supports the shock absorber 16 on the upper surface. With this configuration, the swing unit type engine 11 has a function as a swing arm.

  When the swing unit type engine 11 is mounted on the vehicle 1, the cylinder assembly 12, the crankcase 13, and the transmission unit 14 are arranged in this order from the vehicle front side. The cylinder assembly 12 includes a single-cylinder air-cooled engine, and is mounted in a state where the cylinder axis is substantially horizontal along the vehicle longitudinal direction. The power from the crankshaft included in the crankcase 13 is transmitted to the driven sprocket included in the transmission unit 14 by a transmission member such as a V-belt stretched substantially horizontally along the vehicle longitudinal direction. With such a configuration, the swing unit type engine 11 has a horizontally long shape in a side view and is mounted on the vehicle 1 in a state in which the longitudinal direction is substantially horizontal along the vehicle front-rear direction, thereby suppressing the vehicle height or lowering the center of gravity. The layout configuration is to be achieved.

  Also, a seating seat 18 for a rider to sit on is installed above the swing unit type engine 11, and a step board 19 on which a rider sits is placed above the down tube pipe 2 with a step board 19 not shown. Supported by the frame. The step board 19 is formed integrally with the leg shield cover 20 that constitutes the exterior of the vehicle. An article storage space that is a so-called helmet box that is opened and closed by the seating seat 18 is formed between the swing unit type engine 11 and the seating seat 18.

As a vehicle exterior, various vehicle body covers are supported and attached to appropriate positions such as a vehicle body frame. The handle cover 21 covers a handle bar (not shown) connected to the handle 6. The leg shield 22 includes a leg shield main body 23 and a leg shield cover 20, a winker or the like is mounted, covers the front side of the vehicle, and is continuous with the above-described step board 19. The frame side lower cover 24 is disposed on the lower front portion and the side portion of the seating seat 18 and covers the article storage space and the pair of left and right rear frames 4 from the side. The frame side lower cover 24 is formed to be divided from the center in the left-right direction of the vehicle 1 to the left and right.
The frame cover 25 is disposed from the side portion to the rear portion of the seating seat 18 and covers the pair of left and right rear frames 4 from the side and the rear. The frame cover 25 is joined to the frame side lower cover 24 so that a smoothly continuous curved surface is formed by the frame side lower cover 24 and the frame cover 25.

A rear carrier 26 extends rearward above the rear part of the frame cover 25. Further, a rear combination lamp 27 having functions of a brake lamp and a tail lamp is attached to the rear portion of the frame cover 25.
Here, as shown in the perspective view of the rear part of the vehicle shown in FIG. 3, the rear combination lamp 27 includes a rear combination lamp body 28 and left and right rear turn signal lamps 29 that are integrally formed. The surface of the rear combination lamp 27 is formed by a curved surface that is continuous with the side and rear surfaces of the frame cover 25, so that the outer shape of the rear portion of the vehicle is adjusted. A rear fender 40 is provided below the rear combination lamp 27 so as to cover the rear wheel 15 above and obliquely rearward.

  Next, a frame cover mounting structure according to the present embodiment, specifically, a frame cover, a rear combination lamp, and a rear fender, will be described with reference to FIGS. Here, FIG. 3 is a perspective view of the rear portion of the motorcycle. FIG. 4 is a perspective view of the rear fender and the rear frame. FIG. 5 is a perspective view of the rear combination lamp. FIG. 6 is a perspective view of the frame cover. FIG. 7 is a cross-sectional view showing a mounting state of the rear fender, the frame cover, and the rear combination lamp.

First, the shape of the rear fender 40 will be described with reference to FIG. FIG. 4 illustrates a state in which the rear fender 40 is attached to the rear frame 4.
The rear fender 40 is sized to cover the entire rear wheel 15 from the front to the rear from above, and is integrally formed of synthetic resin or the like. The rear fender 40 includes a front rear fender 30 that covers some components of the vehicle 1, and a rear rear fender 38 that prevents splashing of mud and the like by the rear wheels.

  The front rear fender 30 attaches the shock absorber 16 to a fuel tank housing part 31 in which a fuel tank (not shown) is housed or a shock absorber mounting part 41 of the rear frame 4 below a space formed in a U-shape of the rear frame 4. Sometimes, a through hole 32 or the like through which the shock absorber 16 is inserted substantially vertically is formed. Further, on both the left and right sides of the front rear fender 30, flange portions 33 are formed as flat mounting portions that protrude outward from the vehicle and are long in the front-rear direction. The left and right flange portions 33 are positioned below the pair of left and right rear frames 4 and are substantially parallel to the pair of left and right rear frames 4, that is, inclined obliquely upward as going rearward.

An attachment hole 34 for attaching a clip to be described later is formed on the front side of the flange portion 33. In FIG. 4, the mounting hole on the right side of the vehicle is not shown in the figure because it is hidden by the rear frame 4.
In addition, an attachment hole 35 for attaching a fixing screw as a fixing member described later is formed on the rear side of the flange portion 33. A boss portion 36 protruding upward is integrally formed around the mounting hole 35. Details of the boss 36 will be described later with reference to FIG.

Further, the front rear fender 30 has a flat mounting portion that is attached to a bracket portion 42 that extends substantially downward from the rear frame 4 at a position inside each of the left and right flange portions 33 and in the vicinity of the mounting hole 35. 37 are erected. The rear fender 40 is attached to the rear frame 4 by fastening the left and right attachment portions 37 to the left and right bracket portions 42 via fixing screws.
On the other hand, the rear rear fender 38 is formed to extend rearward and obliquely downward from the rear end of the front rear fender 30. The rear rear fender 38 is formed with a license plate mounting portion 39 for mounting a license plate.

  Note that a bracket 43 for attaching a locking mechanism (not shown) for locking the seating seat 18 in a substantially horizontal state is fixed to the rear frame 4 shown in FIG. 4 by welding or the like. Further, a U-shaped bracket portion 44 formed in a U-shaped cross section in a side view is fixed to the rear frame 4 by welding or the like at a connecting portion where the pair of rear frames 4 are connected at the rear portion. The U-shaped bracket portion 44 is formed with a screw hole 45 penetrating rearward and obliquely upward. The rear combination lamp 27 and the frame cover 25 can be attached to the rear frame 4 by tightening and fixing the rear combination lamp 27 and the frame cover 25 to the screw holes 45 via fixing screws.

Next, the shape of the rear combination lamp 27 will be described with reference to FIG. In FIG. 5, the rear frame 4 is indicated by a two-dot chain line.
The rear combination lamp 27 is sized to cover the rear portion of the rear frame 4 from the rear, and is formed in a substantially arc shape when viewed from above. Further, as described above, the rear combination lamp 27 is formed by integrating the rear combination lamp main body 28 and the left and right rear turn signal lamps 29. More specifically, the lens 50, the housing 51, a lamp (not shown), etc. Are assembled together.

The left and right end portions on the upper side of the rear combination lamp 27 have a substantially triangular shape projecting forward in a side view and projecting horizontally from the vehicle inner side to the outer side at these tips. A stop projection 53 is provided. The rear combination lamp 27 and the frame cover 25 can be locked in advance by using the locking projection 53. In FIG. 5, the right side locking projection is not shown in the figure because it is hidden by the rear combination lamp 27.
In addition, flat attachment stay portions 54 are formed at the left and right ends of the lower side of the rear combination lamp 27 so as to protrude slightly forward and obliquely toward the vehicle outer side.

A mounting hole 55 through which a fixing screw is inserted is formed in the mounting stay portion 54. The attachment hole 55 communicates with the attachment hole 35 formed in the flange portion 33 of the rear fender 40 described above when the rear combination lamp 27 is attached to the rear frame 4.
Further, a U-shaped nut 60 is sandwiched between the mounting stay portions 54. The nut 60 is a so-called speed nut. When the nut 60 is used for fixing with a fixing screw, the operator can first insert it into the screw hole of the nut 60 simply by pushing it in the axial direction of the fixing screw, and finally fix it by simply tightening. improves.

  A bracket portion 56 is formed integrally with the housing 51 at the center in the left-right direction on the upper side of the rear combination lamp 27. The bracket portion 56 is formed with a screw hole 57 penetrating rearward and obliquely upward.

Next, the shape of the frame cover 25 will be described with reference to FIG.
The frame cover 25 is substantially U-shaped when viewed from above, and is integrally formed of synthetic resin or the like so as to cover the side and rear of the rear frame 4 from the rear. In the rear portion of the frame cover 25, an opening 71 is formed that matches the appearance of the rear combination lamp 27 described above. Specifically, a concave portion 72 or the like that opens in the left-right direction when viewed from the side is formed so that the left and right acute-angled both ends on the upper side of the rear combination lamp 27 are fitted together. Further, locking holes 73 into which the locking projections 53 of the rear combination lamp 27 are inserted are formed on the inner periphery of the frame cover 25 and in the vicinity of the concave portions 72, respectively. In FIG. 6, the left locking hole does not appear in the figure because it is hidden by the frame cover 25.

  Further, attachment portions 74 for connecting to the frame side lower cover 24 are formed at the front ends of both side portions of the frame cover 25, respectively. Further, on the lower side of the left and right sides of the frame cover 25, a folded portion 75 is formed as a flat mounting portion that is folded back to the inside of the vehicle and long in the front-rear direction. The left and right folded portions 75 are inclined obliquely upward as they go rearward.

An attachment hole 76 for attaching a clip to be described later is formed on the front side of the folded portion 75. These attachment holes 76 communicate with the attachment holes 34 formed in the flange portion 33 of the rear fender 40 described above when the frame cover 25 is attached to the rear frame 4.
In addition, attachment holes 77 for attaching fixing screws to be described later are formed on the rear side of the folded portion 75. These mounting holes 77 are mounting holes formed in the flange portion 33 of the rear fender 40 and the mounting stay portion 54 of the rear combination lamp 27 when the frame cover 25 is attached to the rear frame 4. 55 communicates.

  In addition, a screw hole 78 is formed in the upper rear portion of the frame cover 25 at the center in the left-right direction so as to penetrate rearward and obliquely upward as shown by a broken line in FIG.

Here, a method of attaching the frame cover 25, the rear combination lamp 27, and the rear fender 40 to the rear frame 4 will be described.
First, as shown in FIG. 4, the rear fender 40 is attached to the rear frame 4 by fixing the attachment portion 37 of the rear fender 40 and the bracket portion 42 of the rear frame 4 using fixing screws.
Next, the rear combination lamp 27 and the frame cover 25 are assembled in advance to form a unit. That is, the rear combination lamp 27 is inserted into the opening 71 of the frame cover 25 from the rear while inserting the locking projections 53 formed at the left and right ends of the rear combination lamp 27 into the locking holes 73 formed in the frame cover 25. Fit together. At this time, the mounting stay portion 54 of the rear combination lamp 27 is superposed on the upper side of the folded portion 75 of the frame cover 25.

Next, the unitized rear combination lamp 27 and the frame cover 25 are overlapped on the upper side of the rear fender 40 so as to cover the rear frame 4 from behind.
Thereafter, using a fixing screw (not shown), the screw hole 78 of the frame cover 25 and the screw hole 57 of the bracket portion 56 of the rear combination lamp 27 are inserted and screwed into the screw hole 45 of the rear frame 4 to be fastened and fixed. .
At this time, the folded portion 75 of the frame cover 25 is overlaid on the upper side of the flange portion 33 of the rear fender 40. Therefore, on the rear side of the flange portion 33 of the rear fender 40, the rear fender 40, the frame cover 25, and the rear combination lamp 27 are superposed in order from the vehicle lower side. Further, on the front side of the flange portion 33 of the rear fender 40, the rear fender 40 and the frame cover 25 are superposed in order from the vehicle lower side. Here, since the rear combination lamp 27 is not disposed up to the front side of the flange portion 33 of the rear fender 40, the rear combination lamp 27 is not superposed.

Then, on the rear side of the flange portion 33 of the rear fender 40, the fixing screw 81 indicated by a two-dot chain line in FIG. 3 is pushed into the mounting hole 35 of the flange portion 33 from below, and then the fixing screw 81 is screwed to The rear fender 40, the frame cover 25, and the rear combination lamp 27 are firmly fastened together.
On the other hand, on the front side of the flange portion 33 of the rear fender 40, the rear fender 40 and the frame cover 25 are fastened together by pushing a clip 82 shown by a two-dot chain line in FIG. 3 from below.
At this time, since the rear fender 40, the frame cover 25, and the rear combination lamp 27 are overlapped with each other, as shown in FIG. be able to.

Next, a state where the rear fender 40, the frame cover 25, and the rear combination lamp 27 are fastened together by the fixing screw 81 will be described with reference to FIG.
FIG. 7 is a cross-sectional view taken along the cutting line II shown in FIG. 3 from the direction of arrow A perpendicular to the flange portion 33.
As shown in FIG. 7, the rear fender 40, the frame cover 25, and the rear combination lamp 27 are superposed in this order from the lower side of the vehicle. Here, the mounting hole 35 of the flange portion 33 of the rear fender 40 is integrally formed with a boss portion 36 having a tapered surface whose diameter decreases as the outer periphery thereof moves upward. The boss portion 36 is inserted through the mounting hole 77 of the folded portion 75 of the frame cover 25. Furthermore, the thickness (height) of the boss portion 36 is formed to be thicker than the thickness of the folded portion 75 of the frame cover 25.

Therefore, by tightening the fixing screw 81, the boss portion 36 of the rear fender 40, the rear combination lamp 27, and the mounting stay portion 54 are mainly brought into close contact with each other. The frame cover 25 between the rear fender 40 and the rear combination lamp 27 is located in a sandwiched state.
This is because if the three members are simply overlapped and tightened with a fixing screw, the area of the overlapping surface will increase, and vibration during travel will be easily transmitted to the overlapping surface. Screws are easy to loosen. However, as in the present embodiment, the uppermost member and the lowermost member are brought into close contact with the fixing screw 81 to reduce the overlapping surface, and the fixing screw is caused by vibration during traveling. It can be prevented from loosening.

As described above, according to this embodiment, when attaching the frame cover, the rear fender, and the rear combination lamp to the vehicle, the three members are fastened and fixed at the same time. Members can be reduced.
In addition, since the order in which the frame cover, the rear fender, and the rear combination lamp are superposed is superposed in consideration of the order in which the three members are attached to the vehicle, each component can be easily attached to the vehicle.

  In this embodiment, only the rear combination lamp main body and the left and right rear turn signal lamps are integrally described as a rear combination lamp. However, the present invention is not limited to this case. It may be configured only from a rear combination lamp body that does not include a rear turn signal lamp.

In the present embodiment, only the case where the rear fender, the frame cover, and the rear combination lamp are superposed in order from the lower side of the vehicle has been described, but the present invention is not limited to this case. For example, the frame cover, the rear fender, and the rear combination lamp may be overlapped in this order from the lower side of the vehicle, and the order of the overlap may be appropriately changed in consideration of the order in which each component is attached to the vehicle.
Moreover, although this embodiment demonstrated only the case where the boss | hub part was integrally formed in the rear fender, it is not restricted to this case. For example, the boss portion may be provided separately. The boss portion may be formed integrally with the rear combination lamp.

1: Vehicle 2: Down tube pipe 4: Rear frame 15: Rear wheel 24: Frame side lower cover 25: Frame cover 27: Rear combination lamp 33: Flange portion 34, 35: Mounting hole 36: Boss portion 40: Rear fender 54: Mounting Stay part 55: Mounting hole 60: Nut 75: Folded part 77: Mounting hole 76: Mounting hole

Claims (4)

A frame cover that covers the rear side of the vehicle body;
A rear fender that covers the rear wheels,
A rear combination lamp located behind the frame cover and above the rear fender,
The rear fender is attached to the rear frame by fixing the mounting portion of the rear fender and the bracket portion of the rear frame,
The rear combination lamp and the frame cover are assembled into a unit so that the mounting stay portions formed at the left and right ends of the lower side of the rear combination lamp are superimposed on the upper side of the frame cover.
In the state where the unitized rear combination lamp and the frame cover are overlapped on the upper side of the rear fender while covering the rear frame from behind, the frame cover and the center in the left-right direction above the rear combination lamp Are attached to the rear frame,
Polymerized frame cover mounting structure for a motorcycle, characterized in that fixed to the frame cover and the rear fender by the rear combination lamp and a fixed member.   The motorcycle frame cover mounting structure according to claim 1, wherein the rear fender, the frame cover, and the rear combination lamp are stacked in this order from the bottom of the vehicle body. The rear fender and the rear combination lamp are tightened by a fixing screw as the fixing member through a boss portion,
The frame cover mounting structure for a motorcycle according to claim 2, wherein the frame cover is formed with a hole through which the boss portion is inserted.   Flat mounting portions formed on both sides of the frame cover and folded back inside, and flat mounting portions formed on both sides of the rear fender and projecting outward are overlapped and fixed by the fixing member. The motorcycle frame cover mounting structure according to any one of claims 1 to 3, wherein the motorcycle frame cover mounting structure is provided.

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