JPH06247362A - Rear body structure of motorcycle - Google Patents

Abstract

PURPOSE:To provide a rear body structure of a motorcycle on which accessory parts are mounted and which can provide reduced body width and slim appearance. CONSTITUTION:A motorcycle body is comprised of a pipe-shaped frame except at the rear of the body and a rear fender 11 comprising a plate-shaped frame is connected and supported to the back of the pipe-shaped frame to constitute the rear of the body, and a fuel tank 29 is disposed above the back of the pipe-shaped frame and accessory parts are disposed on the rear fender 1 and the upper side of the fuel tank 29 and the accessory parts is freely opened and closed by a sheet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle, in particular, a rear structure of a vehicle body.

[0002]

2. Description of the Related Art Generally, in the rear part of a motorcycle, a pipe-shaped seat rail extends rearward from a main frame. When arranging auxiliary equipment parts or the like on the rear part of a vehicle body, brackets are welded to this seat rail or It is a structure for fastening and supporting accessory parts.

That is, since the seat rail is extended as a strength member around the rear fender, there is a surface in which the space is sacrificed by the pipe material of the seat rail.

Therefore, there is an example in which the seat rail is not extended to form the rear part of the vehicle body.
In the example disclosed in Japanese Patent Laid-Open No. 92, a plate-like grab bar is extended rearward from reinforcing plates provided on the left and right sides of a frame with a rear fender sandwiched therebetween, and the glove bar supports the rear seat together with the rear fender.

Further, Japanese Utility Model Laid-Open No. 1-150186 discloses an example in which auxiliary equipment parts are loaded on a rear fender.

[0006]

[Problems to be Solved] However, in the former example, since the auxiliary device parts are not arranged in the rear part of the vehicle body, a large space for the auxiliary device parts must be secured in other places, and the vehicle body width is widened. Would make the appearance of the sacrifice. There are also special grab bars, etc., and there are many parts.

On the other hand, in the latter example, the accessory parts are arranged at the rear part of the vehicle body, but at the lateral position, the vehicle body frame is located above the rear fender, and there is little room to mount the accessory parts. .

The present invention has been made in view of the above points, and an object of the present invention is to provide a vehicle body rear portion structure capable of ensuring a sufficient space for auxiliary device parts and the like in the vehicle body rear portion and forming a slim vehicle body appearance. There is a point to offer.

[0009]

In order to achieve the above-mentioned object, the present invention comprises a pipe-shaped frame for the vehicle body except the rear portion of the vehicle body, and a rear formed of a plate-shaped frame at the rear portion of the pipe-shaped frame. A rear part of the vehicle body is configured by connecting and supporting a fender to the rear, a fuel tank is arranged on the upper rear part of the pipe-shaped frame, an auxiliary device part is arranged on the rear fender, and the fuel tank and the auxiliary device part are arranged. The upper part of the motorcycle has a rear structure that can be opened and closed with a seat.

Since the rear fender is composed of a plate-like frame and a space is secured without using a pipe frame and the catcher parts are arranged on the rear fender, the width of the vehicle body can be narrowed to make the appearance slim. it can.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in FIGS. 1 to 7 will be described below.

FIG. 1 is a side view of a motorcycle 1 of this embodiment, FIG. 2 is a side view showing its frame structure, and FIG. 3 is a plan view thereof.

Referring to FIGS. 2 and 3, the head pipe 2
The main frame 3 branches further to the left and right and extends obliquely downward to the rear, and the rear portion of the main frame 3 is connected to a center frame 4 which is bent downward. A frame pipe 5 extends obliquely upward from the bent portion of the center frame 4, and an upper frame pipe 6 is installed between the main frame 3 and the frame pipe 5 which are expanded from the center frame 4 to the front and rear.

A cross bracket 7 is installed between the rear portions of the left and right frame pipes 5, a cross pipe 8 is installed between the left and right center frames 4, and a cross pipe 9 and a cross stay 10 are installed between the left and right upper frame pipes 6, respectively. It forms the body frame excluding the rear part of the body.

A rear fender 11 which is a plate-shaped frame is supported by the cross bracket 7 and extends rearward to form a rear frame of the vehicle body. On the other hand, the front fork 1 is rotatably supported by penetrating the head pipe 2.
The front wheel 16 is pivotally supported at the lower end of the front fork 15
The upper part of the is connected to the steering wheel 17 to form a steering system, a headlight 18 is provided in front of the head pipe 2, and a front fender 19 covers the front wheels 16 (see FIG. 1).

A front fork 21 is pivotally supported on the one-way center frame 4 by a pivot 20 and a rear fork 21 is extended rearward so as to be vertically swingable, and a rear wheel 22 is pivotally supported at the rear end of the rear fork 21. There is.

The rear fork 21 is vertically mounted on the cross pipe 9 which is provided between the pin 23 provided on the bracket 21a which is provided slightly forward of the rear wheel 22 and the upper frame pipe 6 above the pin 23. A cushion 25 is interposed by pivotally attaching the lower end and the upper end to a pin 24 provided on the bracket 9a.

A bracket 3a is provided so as to extend downward from a substantially central position of the main frame 3, and a bracket 4a is provided so as to project obliquely downward from the vicinity of a bent portion of the center frame 4, and the pins 26 and 27 are respectively attached by the brackets 3a and 4a. An engine 28 is suspended below the main frame 3 via the engine 28.

A fuel tank 29 is supported on the upper frame pipe 6 at its lower front portion by a bracket 10a provided on the cross stay 10, and has a rear flange portion 29a.
Are supported by the cross bracket 7.

The cover for covering the vehicle body is divided into a plurality of parts. As shown in FIG. 1, first, a side cover 35 for covering the outside of the main frame 3, an upper cover 36 for covering the upper part between the left and right side covers 35, and a side cover. A lower side cover 37 extending below 35, an engine cover 38 extending below the lower side cover 37 to cover a part of the engine, a rear cover 39 extending behind the left and right side covers 35, and a rear of the upper cover 36. There is a center cover 40 and the like that covers the front of the continuous fuel tank 29.

Left and right rear covers 39 and center cover 4
The sheet 45 is configured to cover an upward opening formed by 0 so as to be openable and closable. A tail lamp 41 is provided at the rear end of the rear cover 39, and the winker lamp 4 is provided on the left and right of the base end of a mudguard plate 42 that is connected to the rear fender 11 and supports a license plate and the like extended rearward.
3 are provided.

As shown in FIG. 1, the seat 45 has a bracket in which an arm 46a protruding from the front end of a seat bottom plate 46 stretched on the back side of the seat 45 is provided at the upper end of the front part of the fuel tank 29. It is pivotally attached to 29b by a pin 47, and is supported swingably up and down in the rear.

The structure of the rear part of the vehicle body of the motorcycle 1 having the above-described frame structure and appearance will be described in detail below. The front end is welded to the lower surface of the rear end of the frame pipe 5, and the side grip 50 extends slightly outward and extends rearward and obliquely upward. 50a.

The cross bracket 7 installed between the rear parts of the left and right frame pipes 5 is composed of left and right side parts 7a extending upward from the frame pipe 5 and a horizontal connecting part 7b connecting the left and right side parts 7a at the upper part. The bracket 7c extends obliquely upward from the center of the connecting portion 7b toward the rear.

The left and right ends of the bracket 7c are bent obliquely downward to join the downward bent parts of the left and right rear ends of the connecting portion 7b to ensure rigidity. The horizontal connecting portion 7b has two mounting holes on the left and right, and the rear flange portion 29a of the fuel tank 29 is fitted to the connecting portion from above and fixed by a bolt 51.

On the other hand, the rear fender 11 has a rear fender 12 which is divided forward, and the two are connected to form an entire rear fender, and the front rear fender 12 has a curved portion which bulges upward. A central portion of 12a extends downward to form an extended portion 12b, and a curved portion 12a has a convex portion 12c bulging partially forward at a lower portion of the curved portion 12a,
The front rear fender 12 is fitted from the rear between the left and right connecting portions of the frame pipe 5 and the upper frame 6, and the convex portion 12c is fitted to the end portion of the bracket 5a protruding inward from the frame pipe 5 and the bolts 52 To support the front rear fender 12.

The rear fender 11 on the rear side includes a central curved portion 11a, a left and right side plate 11b, and a left and right flat plate 11c extending outward from the lower ends of the left and right side plates 11b, with the right and left central parts bulging upward in the front and rear. (See FIG. 7), the semi-arcuate opening 11d at the front end is connected to the rear opening of the front rear fender 12, while the rear upper surface constitutes a horizontal flat plate portion 11e. There is. Bolts 53 that are fixed to the right and left of the center of the curved surface in two places on the left and right sides are fixed to the upper part of the curved surface.

When the rear rear fender 11 is connected to the front rear fender 12 and fitted below the cross bracket 7, the pair of left and right bolts 53 are drilled in the bracket 7c of the cross bracket 7. Since the nuts 54 are screwed to and supported by the bolt portions projecting upward, the left and right side portions near the front end opening 11d of the rear rear fender 11 are also provided with the side portions 7a of the cross bracket 7 as well. It is fixedly supported by bolts 55.

In this way, the rear fender 11 is supported by the frame and extended rearward, and the rear fender 11 is attached to the rear end mounting portion 50a of the side grip 50 projecting rearward from the frame pipe 5 and its left and right flat plates. 11
At c, they are fixedly supported and reinforced by bolts 56, respectively.

Thus, the rear fender 11 which is a plate-shaped frame is firmly supported and connected to the frame pipe 5 by the cross bracket 7 and extends rearward to form a frame structure of the rear vehicle body.

A seat catch stay 60 is fixed on the horizontal flat plate portion 11e at the rear portion of the rear fender 11. The seat catch stay 60 includes a central rectangular portion 60.
A rectangular hole 60b is located on the front side of a, and the rear part projects upward to form a cover mounting part 60c.

The right and left sides of the central rectangular portion 60a are lowered by one step to form a bottom portion 60d having mounting holes at the front and rear, and the outer ends of the left and right bottom portions 60d form a side wall 60e rising upward, and the side wall 60e is a front portion. 60f to the outside at low position
And the rear portion is tapered and the inclined front side edge extends outward to form the inclined portion 60g.
Is connected to the horizontal portion 60f.

A large circular hole is formed in the rear portion of the left side wall 60e so that the key cylinder 66 can be fitted therein. Further, each of the left and right slopes 60g has two mounting holes so that the rear grip 62 can be mounted.

That is, the seat catch stay 60 is placed on the flat plate portion 11e of the rear fender 11 with the left and right bottom portions 60d in contact with each other and fixed to the left and right front and rear with bolts 61, and a rear grip 62 having a pipe-like left and right bent shape. Brackets 62a protruding inward from the left and right ends are applied to the left and right inclined portions 60g of the seat catch stay 60 from above and fixed by bolts 63 so that the rear grip 62 is obliquely upward and rearward of the seat catch stay 60. It is projected.

In this seat catch stay 60, the rear protruding portion 46a of the seat bottom plate 46 is contacted and supported by the central rectangular portion 60a, and at this time, the U-shaped seat lock hook 64 protruding from the protruding portion 46a has a rectangular hole 60b. (See Fig. 6).

A seat lock bar 65 supported by a guide so as to be slidable forward and backward is urged by a spring to be disposed below the central rectangular portion 60a, and a front end portion of the seat lock bar 65 has an upper surface. A rectangular hole 60 is formed by forming an inclined surface.
The seat lock hook 64 having a U-shape and penetrating into b can be inserted into the seat lock state.

A rear portion of the seat lock bar 65 is formed in an L shape, and a cam lever 67 which is interlocked with a key cylinder 66 fitted in a circular hole of the side wall 60e of the seat catch stay 60 is engaged with the rear portion of the seat lock bar 65. is doing.

Therefore, when the seat 45 is closed and the seat lock bar 65 penetrates the seat lock hook 64 at the front end and is in the seat lock state, when the key is inserted into the key cylinder 66 and rotated, the seat lever bar 65 is moved by the cam lever 67. When retracted, the front end is seat lock hook 6
The lock is released from 4 and you can open it wide by hand.

When the key is not inserted and the seat lock bar 65 is not rotated, the seat lock bar 65 is in the forward position by the spring. When the seat 45 is closed, the seat lock bar 65 penetrates into the rectangular hole 60b of the seat catch stay 60, and the seat is locked. The seat lock bar 65 slides back against the inclined surface of the front end of the lock bar 65, and when the seat lock hook 64 exceeds the tip of the seat lock bar 65, the seat lock bar 65 advances and penetrates into the seat lock hook 64. The seat can be locked.

A rear end portion of the rear fender 11 behind the seat catch stay 60 is fitted with a base end portion of the mud-preventing plate 42, and an upper portion and left and right side portions are fixed by bolts.

The curved portion 11a of the rear fender 11
The oil tank 70 is arranged along the left side plate 11b from the upper left side to the side part of the rear fender 11.
A tool box 71 is arranged on the front side of the seat catch stay 60 above the seat 1a, and on the right side thereof, a battery box 72 is arranged integrally with the tool box 71 downward along the right side plate 11b of the rear fender 11. Rear fender 11
The wire harness 90 is wired in a bundle at the corner formed by the bottom plate of the tool box 71 and the side plate of the battery box 72 on the upper right side of.

In the oil tank 70, the bracket 70a projecting from the front of the oil tank 70 has the left side portion 7a of the cross bracket 7.
The bracket 70b is fixed to the rear side left side plate 11b of the rear fender 11 by a bolt and is supported by a bolt.

The tool box 71 and the battery box 72 are integrally formed by being divided by a boundary wall and opened upward. The box is fixedly supported by the rear fender 11, and the battery 73 is fitted in the battery box 72. .

[0044] Figure 7 is a diagram showing _VII L -VII _L cross-sectional view of FIG. 4 (vehicle body left half) and _VII R -VII _R cross-sectional view of (the vehicle body right half) simultaneously, with reference to FIG. 7 In the rear fender 11, the tool box 71 is located above the center curved portion 11a, the oil tank 70 is arranged on the left side along the left side plate 11b, and the bottom of the oil tank 70 is the left flat plate 11c of the rear fender 11. And the outside is covered with a rear cover 39.

The battery box 72 on the right side of the tool box 71 extends downward along the right side plate 11b of the rear fender 11 and the bottom portion thereof is the right flat plate 1 of the rear fender 11.
The battery box 72 is covered with a rear cover 39. At the rear position of the battery box 72, a phase box 74 is provided by being fitted and supported by an attachment 75 provided on the rear fender 11, and a phase 76 is mounted.

The above-mentioned auxiliary devices are covered with a seat 45 so as to be openable and closable above. A radiator reserve tank water supply port 77 is arranged in front of the left side of the oil tank 70 and between the fuel tank 29 and the radiator reserve tank water supply port 77 at a height substantially above the upper surface of the fuel tank 29, and is covered with a cap 78. A water supply pipe 79 extends obliquely toward the front from below, and is connected to a radiator reserve tank 80 provided inside the frame pipe 5 on the side of the cushion 25.

An air cleaner 81 is located above the radiator reserve tank 80 and below the fuel tank 29.
A carburetor 83 is provided in front of the air cleaner 81 via a connecting pipe 82.
4 extends to the engine 28. An auxiliary intake pipe 86 is connected to the intake pipe 84, and is connected to an intake chamber 85 arranged inside the main frame 3.

Below the front portion of the main frame 3, a radiator 87 is fixed at its upper end to a bracket 3b projecting downward from the front end of the main frame 3 by bolts, and at its lower end is fixed to the cylinder head portion of the engine 28 and is supported diagonally. Has been done. A water supply pipe 88 extends upward from the upper tank of the radiator 87, and an ignition coil 89 is arranged between the water supply pipe 87 and the intake chamber 85.

In this embodiment, the auxiliary devices are arranged as described above. A rear fender 11, which is a plate-shaped frame, is connected and supported by a cross bracket 7 provided at the rear portion of the frame pipe 5 and extends rearward.
Since the auxiliary devices such as the oil tank 70, the tool box 71, the battery box 72, etc. are disposed above the, the installation space for the auxiliary devices compared to the conventional method of attaching the auxiliary devices to the pipe frame via the brackets. There is also a large layout and flexibility in layout, and the curved portion 1 of the rear fender 11
A tool box 71 and the like are provided above the height position of 1a so that the seat 45 can be opened and closed above the tool box 71, so that the width of the vehicle body can be designed narrow and the appearance can be slim.

The cross bracket 7 is a rear fender 11
Since the rear end of the fuel tank 29 is also supported at the same time, the number of parts is small and the number of assembling steps can be reduced.

Since a part of the accessory parts, the tool box, etc. are arranged at the rear part of the vehicle body and the fuel tank 29 is arranged above the upper frame pipe 6, other accessory parts are arranged on the left and right main frames 3 and the center frame 4. You can put everything in the space, narrow the width of the body and slim the overall appearance of the body.

In the above-described embodiment, the vehicle body is constructed of the pipe-shaped frames such as the main frame 3, the center frame 4, the frame pipe 5 and the like except for the rear portion of the vehicle body, but the present invention can also be applied to the case of a cast integral type frame.

[0053]

According to the present invention, the rear part of the vehicle body is constituted by a rear fender which is a plate-shaped frame, and auxiliary equipment parts are arranged on this rear fender, so that the installation space can be taken freely and sufficiently to reduce the vehicle body width. The appearance can be slim.

[Brief description of drawings]

FIG. 1 is a side view of a motorcycle according to an embodiment of the present invention.

FIG. 2 is a side view showing a frame structure of the motorcycle.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view showing the disposition of accessory components and the like with the cover of the motorcycle removed.

FIG. 5 is a plan view of the same.

FIG. 6 is a side view showing a vehicle body rear structure of the motorcycle.

FIG. 7 is a VII _L- VII _L cross section and VII _R- VII in FIG.
It is a sectional view showing a section _R.

[Explanation of symbols]

1 ... Motorcycle, 2 ... Head pipe, 3 ... Main frame, 4 ... Center frame, 5 ... Frame pipe, 6 ...
Upper frame pipe, 7 ... Cross bracket, 8 ... Cross pipe, 9 ... Cross pipe, 10 ... Cross stay, 11 ...
Rear fender, 12 ... Rear fender 15, Front fork, 16 ... Front wheel, 17 ... Steering wheel, 18 ... Headlight, 19
... front fender, 20 ... pivot, 21 ... rear fork, 22 ... rear wheel, 23 ... pin, 24 ... pin, 25 ... cushion,
26 ... pin, 27 ... pin, 28 ... engine, 29 ... fuel tank 35
… Side cover, 36… Upper cover, 37… Lower side cover, 38… Engine cover, 39… Rear cover, 40… Center cover, 41… Tail light, 42… Mud avoiding plate, 43… Winker light 45… Seat, 46… Seat bottom plate, 47 ... Pin 50 ... Side grip, 51, 52, 53 ... Bolt, 54 ... Nut, 55, 56 ... Bolt, 60 ... Seat catch stay, 61 ... Bolt, 62 ... Rear grip, 63 ... Bolt,
64 ... Seat lock hook, 65 ... Seat lock bar, 66 ...
Key cylinder, 67 ... Cam lever, 70 ... Oil tank,
71 ... Tool box, 72 ... Battery box, 73 ... Battery, 74 ... Fuse box, 75 ... Mounting bracket, 76 ...
Fuse, 77 ... Radiator reserve tank water inlet, 78 ...
Cap, 79 ... Water supply pipe, 80 ... Radiator reserve tank, 81 ... Air cleaner, 82 ... Connection pipe, 83 ... Carburetor, 84 ... Intake pipe, 85 ... Intake chamber, 86 ... Sub-intake pipe,
87 ... Radiator, 88 ... Water pipe, 89 ... Ignition coil, 90 ... Wire harness.

Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location // B62K 19/40 7331-3D

Claims (1)

[Claims] 1. A vehicle body is formed of a pipe-shaped frame except a rear portion of the vehicle body, and a rear fender made of a plate-shaped frame is connected and supported rearward to the rear portion of the pipe-shaped frame to form a rear portion of the vehicle body, and a fuel tank is formed as described above. A rear part of a motorcycle body characterized in that the pipe-shaped frame is disposed on an upper rear portion of the rear fender, and an auxiliary component is disposed on the rear fender, and a seat can be opened and closed above the fuel tank and the auxiliary component. Construction.