JPH11171073A - Integrated structure of seat and rear cowl for motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To integrate a rear cowl with a seat. SOLUTION: A rear cowl 14 is integrated with a bottom plate 30 of a seat supported on a seat rail 8, by bolt fastening. A cylindrical support part 42 suspended from the bottom plate 30 is integrally formed on the inside of a longitudinal intermediate part of the rear cowl 14, and its lower end part is fastened to the inner surface of the rear cowl 14 by a bolt. The seat 13 is detachable by unlocking a seat lock 27. At this time, the rear cowl 14 can be detached along with the seat 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated structure of a seat and a rear cowl of a motorcycle.

[0002]

2. Description of the Related Art Japanese Patent Publication No. 63-6397 discloses a structure in which an opening of a rear cowl is covered with a seat from above, and the rear cowl and the seat are separately mounted on a seat rail.

[0003]

By the way, when the rear cowl and the seat are separately mounted on the seat rails as described above, since the bottom of a general seat is made of resin, it is difficult to secure rigidity and the seat is easily deformed. Therefore, it is difficult to match the shape with the rear cowl. As a result, it becomes difficult to increase the mounting accuracy with the rear cowl, which is necessary for always ensuring a clean alignment.

On the other hand, it is conceivable to integrate the seat and the rear cowl. However, in this case, it becomes difficult to secure the rigidity near the terminal at the other open end of the mounting of the rear cowl. Deformation must be suppressed by increasing the rigidity of this part.

[0005]

According to a first aspect of the present invention, which is an integrated structure of a motorcycle seat and a rear cowl, a seat supported by a seat rail and a seat below the seat are provided. And a rear cowl provided to cover the rear of the vehicle body, the rear cowl is integrally attached to the bottom plate of the seat, and a support portion integrally projecting from the bottom plate to the inside of the rear cowl is provided integrally, and this support portion is provided. It is characterized in that it is connected to the inner surface of the rear cowl.

According to a second aspect of the present invention, in the first aspect, the rear cowl is divided into a left portion, a center portion, and a right portion, and the left and right ends of the center portion are inserted under the adjacent ends of the left and right sides. And a projection protruding toward the seat rail is provided integrally on the back surface of the central portion.

[0007]

According to the first aspect of the present invention, since the rear cowl is attached to the bottom plate of the seat, the seat and the rear cowl can be integrated. Even if the bottom plate of the seat is deformed, the mating portion with the rear cowl does not change. The parts can be kept clean at all times, and the individual mounting accuracy for the seat and the rear cowl becomes unnecessary. In addition, when the seat is removed, the rear cowl also comes off integrally, thereby improving maintainability.

Further, since the support portion extending integrally from the bottom plate supports the inner surface of the rear cowl, the rigidity of the rear cowl can be increased, and deformation of the rear cowl near the terminal on the other open end side can be prevented. In addition, even if the seat and the rear cowl are integrated, the commerciality of the rear cowl can be sufficiently increased, and the number of processing steps and the like can be reduced and costs can be reduced as compared with a case where the rear cowl is made highly rigid alone.

According to the second aspect of the invention, when a load is applied by placing a load or the like on the center portion of the rear cowl, the center portion of the rear cowl is deformed downward, but the projection formed on the back surface is formed by the seat. Load is received by contacting the rail. For this reason, excessive deformation at the center of the rear cowl can be prevented. In addition, by forming the thick projection integrally, even if sinkage, which is deformation due to heat shrinkage, occurs on the surface, this deformed part is hidden under the adjacent left and right side parts, so this Such a deformed portion does not have an appearance, and as a result, molding of the center portion of the rear cowl becomes easy.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the drawings. 1 to 13 show a first embodiment. FIG. 1 is a front-rear cross-sectional view showing a mounting structure of a seat bottom plate and a rear cowl, FIG. 2 is a plan view thereof, and FIG. 3 is an external side view of a motorcycle. 4 is a one-side sectional view taken along line 4-4 in FIG. 1, and FIG.
6, FIG. 6 is a one-side sectional view of the sheet taken along line 6-6 in FIG. 1, FIG. 7 is a partial partial sectional view of the sheet taken along line 7-7 in FIG. FIG. 8 is an assembly diagram showing a mounting structure of a support portion, FIG. 9 is a perspective view of a rear cowl, and FIG.
Is a plan view of a seat rail, FIG. 11 is a cross-sectional view showing a mounting structure at a front portion of a rear fender, FIG. 12 is a cross-sectional view showing a detailed structure of a seat lock portion, and FIG. 13 is a cross-sectional view showing a mounting structure at a rear portion of the rear fender.

First, the overall structure of the motorcycle will be briefly described with reference to FIG. 1 is a front wheel, 2 is a front fork, 3 is a handle, 4 is a head pipe, 5 is a main frame, 6 is a power unit, 7 is a joint plate,
8 is a seat rail, 9 is a swing arm, 10 is a rear wheel,
11 is a shock absorber, 12 is a fuel tank, 13 is a seat, 14
Is a rear cowl, 15 is a tail light, 16 is a rear fender front part, and 17 is a rear fender rear part.

The power unit 6 has a V-type engine,
A joint plate 7 made of an iron plate pressed product is attached to the upper part of the left and right sides of the rear part, and the rear end of the main frame 5 and the front end of the seat rail 8 provided in a pair of right and left are attached to the joint plate 7, respectively. Have been.

The main frame 5 is composed of pipe members 5a and 5b juxtaposed at intervals above and below, and a plurality of reinforcing pipes 5c connecting the pipe members 5a and 5b. The front end of the rear swing arm 9 is rotatably supported by a pivot 19 on a pivot bracket 18 attached to the power unit 6.

As is apparent from FIGS. 1 and 10, the seat rails 8 are arranged in a pair on the left and right in the front-rear direction, and the rear ends of the sub pipes 20 are respectively attached to the left and right front parts. The front ends of the left and right seat rails 8 and the sub-pipe 20 are attached to the joint plate 7.

Left and right seat rails 8 and sub pipes 20
Cross pipes and the like for reinforcement are erected between them.
That is, the first cross pipe 21 is
The seat rail 8 includes a second cross pipe 22 near the connecting portion of the sub-pipe 20, a cross plate 23 at a middle part in the front-rear direction, a third cross pipe 24 overlapping the rear end, and a fourth cross at the rear end. A pipe 25 is provided.

A seat lock stay 26 is provided on the third cross pipe 24, and a seat lock 27 is attached thereto. Outwardly projecting hooks 28 are provided near the fourth cross pipe 25 in the left and right seat rails 8, respectively, and end portions 28a and 28b of each hook 28 are provided.
Protrudes toward the center of the vehicle body beyond the seat rail 8.
Fender stays 2 are provided at the rear ends of the left and right seat rails 8.
9 are attached.

Next, the mounting structure of the seat and the rear cowl will be described. As shown in FIGS. 1 and 2, the sheet 13 is of a tandem type and includes a resin bottom plate 30. A bifurcated portion 31 is provided at the front end of the bottom plate 30, and the front end side of the seat 13 is supported by the fuel tank 12 by sandwiching a mounting portion 32 formed to project from the rear end of the fuel tank 12. I have.

The bottom plate 30 changes stepwise at the intermediate portion 35 from the front seat portion 33 to the rear seat portion 34, and a seat lock fitting 36 projects downward on the back surface of the rear seat portion 34 near the intermediate portion 35. It is provided. The seat lock fitting 36 is a seat lock 27 attached to the seat lock stay 26.
The seat 13 is locked by the seat rail 8
It is fixed detachably.

As is apparent from FIG. 12, ribs 37 and 38 are formed integrally on the back surface of the bottom plate 30 and project downward before and after the sheet lock fitting 36 is sandwiched. Close to the front and rear ends, a closed space 39 surrounding the seat lock 27 is formed by the ribs 37 and 38, the cross plate 23, and the bottom plate 30. Here, the closed space means the degree of inaccessibility from the outside

As shown in FIG. 2, a plurality of bosses 40 are formed in the rear seat portion of the bottom plate 30 so as to protrude vertically along the edge. Further, a support portion 42 which is formed in a tubular shape and protrudes downward is formed on the left and right in the vicinity of the intermediate portion 35, and a lower end portion thereof is formed with a slit 43 having a substantially U-shaped downward shape (FIG. 8).

A substantially U-shaped slit 44 is also formed in a portion corresponding to the section indicating line 7-7 in the figure, which is a side wall of the intermediate portion 35 and which forms a standing wall shape. A clip 45 is attached. The clip 45 is an elastic member having a substantially U-shaped cross section. At this portion, the clip 45 is attached to a hole 47 formed in the intermediate portion 35 with a thickness in the vicinity of the slit 44 therebetween. They overlap (FIG. 7).

On the other hand, as is apparent from FIG. 9, the rear cowl 14 is formed of an appropriate resin, and has a substantially U-shape in a top view including a left portion 50 and a right portion 51 which are separated from the center of the vehicle body to the left and right and extend forward. A plurality of mounting portions 52 projecting toward the center of the vehicle body are formed at the upper edge surrounding the opening covered by the seat bottom plate 30, and a pair of mounting portions projecting upward at the left and right front ends respectively. The part 53 is formed integrally.

These mounting portions 52 and 53 are provided with through holes 54 and 55, respectively.
As shown in FIG. 7, the boss 40 is overlapped with the boss 40 of the bottom plate 30 and is fastened and integrated with a tapping screw 56 from below. Rear cowl 1
As shown in FIG. 7, the front end portion 4 also has the mounting portion 53 overlapped with the clip 45 so that the slits 44 and 55 are aligned with each other, and are integrally fastened with a tapping screw 57 from the inside.

Further, as shown in FIGS. 4 and 8, an integral boss 60 is provided at a position corresponding to the slit 43 at the lower end of the supporting portion 42 inside each of the left and right portions 50 and 51 of the rear cowl 14. Protruding and formed here, collar 61,
The lower end of the support portion 42 is integrated with the inner surface of the rear cowl 14 from the inside by a bolt 63 via a washer 62. The position of the boss 60 corresponds to the vicinity of the end of the rear cowl 14 on the other end open side.

Reference numeral 64 in FIG. 4 denotes an insert nut of the boss 60. 6, reference numeral 65 denotes a seat belt, 66 denotes a cushion material covered with a skin (not shown),
Reference numeral 67 denotes a bolt for fixing the seat belt 65, and together with the reinforcing metal bracket 68, secures the seat belt 65 to the bottom plate 30.
It is designed to be attached to.

As is apparent from FIG. 1, the rear fender is configured as a separated type fender which is separated into a rear fender front portion 16 and a rear fender rear portion 17 and is disposed at an interval in front and rear.
Supported by

As is apparent from FIG. 11, the front portion 16 of the rear fender also serves as a battery box, and a battery 71 is housed in a housing 70 formed as a recess for that purpose. However, other electrical components such as a fuse and an ignition unit and other articles are also appropriately accommodated at the same time.

The rear fender front part 16 is formed by engaging a hook part 72 formed on the bottom part on the front part side with the first cross pipe 21 from above and fastening the rear part to the side surface of the sub pipe 20 with a bolt 73. It is attached to the sub pipe 20.

The lower part of the rear fender front part 16 projects downward from the front extension part 30a (FIG. 1) of the seat bottom plate 30 to form an external part, and a key for unlocking the seat lock 27 is provided on the side surface. An operation unit 74 is provided.

When a key (not shown) is inserted into the key operation portion 74 and rotated, an operation wire 75 having one end connected thereto, passing over the seat rail 8 and being attached to the seat lock 27 at the other end is connected. It is designed to be unlocked.

As is apparent from FIG. 13, the rear fender rear portion 17 is provided with the engaging portion 80 at the front end and the extension portion 28 of the hook portion 28.
a, which is attached to the seat rail 8 by being bolted to a stay 29 extending from the rear end of the seat rail 8 at the rear side surface. The other extension 28b is also engaged from above with a recess formed at the upper end of the front part on the rear side wall of the rear fender.

The rear fender rear portion 17 is formed in a container shape opened upward, and inside thereof are provided ribs 82 and 83 which are inclined substantially in parallel with the seat rail 8 at the front and rear, and a line connecting these slopes and a fourth line are provided. A space 84 between the cross pipes 25 is for storing documents.

Next, the operation of this embodiment will be described. As is clear from FIGS. 1 and 2, since the rear cowl 14 is attached to the bottom plate 30 of the seat 13, the seat 13 and the rear cowl 1 are attached.
4 can be integrated, and even if the bottom plate 30 of the seat 13 is deformed due to a load change, the mating portion with the rear cowl 14 does not change and the mating portion can be always kept clean, so that the mounting accuracy management of the rear cowl 14 and the rear cowl 14 alone can be performed. It is not necessary to secure rigidity at the time.

Further, when it becomes necessary to remove the seat 13 and the rear cowl 14 during maintenance,
By simply removing the rear cowl, the rear cowl 14 also comes off integrally, so that it is not necessary to separately remove the rear cowl 14, thereby improving the maintainability.

Further, since the support portion 42 extending integrally from the bottom plate 30 supports the inner surface of the rear cowl 14, the rigidity of the rear cowl 14 is increased, and the rear cowl 14 can be prevented from being deformed at the middle portion in the front-rear direction. In particular, in this embodiment, since the supporting portion 42 is formed in a cylindrical shape, it is possible to reduce the weight in spite of high rigidity.

Therefore, despite the fact that the seat 13 and the rear cowl 14 are integrated, it is possible to obtain a sufficiently high commercial value and to reduce the number of processing steps and the like as compared with the case where the rear cowl 14 is made highly rigid alone. Reduction and cost reduction.

In addition, when the seat lock 27 is unlocked and the seat 13 is released, the rear cowl 14 also comes off integrally with the seat 13 and the upper part is opened.
If a document is inserted into the space 84 below the cross pipe 25, the document can be stored, and the fourth cross pipe 25 also serves as a document holder.

14 to 17 show another embodiment in which the structure of the rear cowl is changed. FIG. 14 is a plan view of the rear cowl.
FIG. 15 is a diagram showing the rear part of the side surface, and FIG.
FIG. 17 is a sectional view taken along the line 17-17 in FIG. Hereinafter, the same parts as those in the previous embodiment will be described using the same reference numerals.

The rear cowl 14 is made of resin and has a three-part structure consisting of a center portion 90 at the center of the vehicle body and its vicinity, and a left portion 91 and a right portion 92 on both left and right sides (FIG. 14). The left and right end portions 93 of the central portion 90 are stepped so as to be lower by the thickness, and the adjacent left portion 91
In addition, it enters under the upper end portions 94 and 95 of the right side portion 92 and overlaps vertically.

A cylindrical projection 96 is formed integrally with each of the left and right end portions 93 so as to project toward the upper surface of the seat rail 8. In this state, a slight gap having a dimension d is formed (FIG. 17).

In this way, even if the load is applied by placing the luggage on the central portion 90 and deformed,
Since the lower end of the protrusion 96 abuts on the seat rail 8, the load is received by the seat rail 8 via the protrusion 96, so that excessive deformation can be prevented.

In addition, the thick protrusion 96 is connected to the central portion 90.
Even if heat sink deformation occurs on the surface due to the integral formation with the surface, this deformed portion is adjacent to the left portion 91 and the right portion 9.
2 are hidden beneath each upper end 94, 95, so that such deformations are not visible, and as a result
Molding becomes easier.

[Brief description of the drawings]

FIG. 1 is a sectional view of a seat bottom plate and a rear cowl portion according to a first embodiment.

FIG. 2 is a plan view thereof.

FIG. 3 is an external side view of the motorcycle.

FIG. 4 is a half sectional view taken along line 4-4 in FIG. 1;

FIG. 5 is a similar sectional view taken along line 5-5 in FIG. 1;

FIG. 6 is a one-side cross-sectional view of the sheet taken along line 6-6 in FIG. 1;

FIG. 7 is a partial sectional side view of the sheet taken along line 7-7 of FIG. 2;

FIG. 8 is an assembling diagram showing a mounting structure of a support portion.

FIG. 9 is a perspective view of a rear cowl.

FIG. 10 is a plan view of a seat rail.

FIG. 11 is a sectional view showing a mounting structure of a front portion of a rear fender.

FIG. 12 is a sectional view showing a detailed structure of a seat lock portion.

FIG. 13 is a sectional view showing a mounting structure at a rear portion of the rear fender.

FIG. 14 is a plan view of a rear cowl according to a second embodiment.

FIG. 15 is a view showing a rear portion of the side surface.

16 is a sectional view taken along line 16-16 of FIG.

17 is a sectional view taken along lines 17-17 in FIG.

[Explanation of symbols]

8: Seat rail, 13: Seat, 14: Rear cowl,
16: Rear fender front, 17: Rear fender rear, 2
7: seat lock, 30: bottom plate, 42: support

Claims (2)

[Claims] A motorcycle including a seat supported by a seat rail and a rear cowl disposed below the rear cowl and covering a rear portion of the vehicle body, wherein the rear cowl is integrally attached to a bottom plate of the seat, and the rear cowl is mounted on the bottom plate of the seat. An integrated structure of a seat and a rear cowl of a motorcycle, wherein a support portion integrally protruding inward of the vehicle is provided, and the support portion is connected to an inner surface of the rear cowl. 2. The rear cowl is divided into a left part, a center part and a right part, and the left and right ends of the central part are inserted under the adjacent ends of the left and right parts to overlap with each other. The integrated structure of a motorcycle seat and rear cowl according to claim 1, wherein a protrusion protruding toward the rear is provided integrally.