JPS6021913B2 - motorcycle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a motorcycle, and more particularly to a motorcycle that can adequately cool the engine while ensuring a space for installing auxiliary equipment.

Some conventional motorcycles have a body frame on the upper and lower sides and a cover on the side of the body, but this type of secondary cover only covers a specific part of the side of the body frame. Not a small one.

By the way, various parts are arranged in the space surrounded by the vehicle body frame, and these parts tend to get dirty due to rainwater, dust, etc. This idea was proposed in view of the above-mentioned circumstances.It is a motorcycle that has a body frame on the top and bottom, and rainwater, dust, etc. can intrude into various parts arranged in the space surrounded by the body frame. It is an object of the present invention to provide a motorcycle that can prevent the engine from occurring and can cool the engine well.

An embodiment of the present invention will be described below with reference to the drawings.

1 is an upper body frame with one pair on the left and right, 2 is a lower body frame with one pair on the left and right, 3 is a head pipe, 4 is a front fork, 5 is a handlebar, 6 is a front fender, 7 is a front wheel, 8 is the front carrier, 9 is the headlamp 0, 1, 0, 11 is the seat, 12 is the seat grip, 13 is the rear fender, 14 is the rear fork, 1
5 is a rear cushion assembly, 16 is a rear wheel, 17 is a chain cover, 18 is an engine, 19 is an engine hanger that supports the engine, 20 is a bracket, 21 is a main stand attached to the bracket 20', 22 is a change pedal, 23 is the step, 24 is the side cover,
25 is the upper cover, 26 is the choke knob, 27 is the exhaust/type, 28 is the cylinder part of the engine 18, 2
9 is the fuel tank, 3 river storage, 31 is the battery, 32
33 is a battery fixing lid, 33 is a star cover, 34 is a air filter, 35 is a carburetor, 36 is a connecting tube leading from the air filter 34 to the carburetor 35, 37
38 is a cover that accommodates the connecting tube 36;
4 is a bracket to which one end of the seat 10 is pivotally connected; 39 is a seat bridge for receiving the other end of the seat 10; 40' is a cross pipe welded to the left and right lower body frames 2;
1 is a stay, 42 is a brake pedal arm, and 43 is a pivot shaft of the brake pedal arm 42.

Further, 44 is a fuel pipe, 44a is a spare fuel pipe,
45 is a fuel cock. The engine hanger 19 has a back slope portion 19a and left and right side plate portions 19b, and has a U-shaped horizontal cross section with a front opening. It is welded and fixed to the vehicle body frame 2 and the front and rear cross pipes 40.

Two holes 19d for engine support are provided in each of the side slopes 19b of the engine hanger 19, and the engine 18 is supported by the engine hanger 19 by bolts 68 passed through the holes 19d.

Also, the rear brake arm 4 is attached to the engine hanger 19.
The two pivot piths 43 and the pivot shaft 46 of the Lyaf oak 14 are fixed. In the internal space A formed by the U-shaped cross section of the engine hanger 19, various electrical components for control are arranged.

That is, electrical components such as the ignition coil 47, starter relay 48, turn signal relay, CDI unit 50, regulator 51, and resistor 52 are attached to the engine hanger 19 either directly by screwing or through a mounting section.
is attached to. 53 is a high tension code.

Furthermore, the tip 13a of the rear fender 13 is attached to the back plate portion 19a of the engine hanger 19. To explain the body frame in detail, the above-mentioned upper body frame 1
and the lower body frame 2, whose tips are welded and fixed to the upper and lower parts of the head pipe 3, respectively; After expanding from side to side,
The lower body frame 2 extends rearward in a straight line, and the lower body frame 2 also extends from the head pipe 3 downwardly and to the left and right, and is connected to the upper body frame 1 as appropriate within approximately the same vertical plane as the upper body frame 1. After extending rearward at a distance, it is bent upward and fixed to the upper vehicle body frame 1 by welding.

A cross pipe 40, a seat grip 12 which also serves as a strength member, a seat bridge 39, a stay 41, etc. are welded and fixed between the left and right vehicle body frames 1 and 2 to form a vehicle body structure. Further, 54 is a connecting member for rotatably connecting the seat 10 to the bracket 38 on the upper body frame 1 side, 55 is a seat support with a suction cup attached to the seat 10, and 56 is a cover 37 for the connecting tube 36. A head pipe gusset supports one end, 57 is an instrument panel, 58 is a fuel gauge, and 59 is a mounting member provided on the lower body frame that supports the front portion 29b of the fuel tank 29.

A rear portion 29c of the fuel tank 29 is supported by a stay 41. 34a is a suction pipe of the air cleaner 34, 34b is an element, and 34c is a suction hole.

The suction pipe 34a is disposed in a stepped portion 29a formed in the fuel tank 29. 37a is a case that accommodates a connection part (connector) of a wire harness (not shown) to a headlamp etc.;
It is formed integrally with the cover 37.

In the present invention, a cover with substantially flat sides that does not protrude outward from both body frames 1 and 2, that is, the side cover 24 described above, is provided between the upper body frame 1 and the lower body frame 2. This side cover 24 covers the entire space between the vehicle body frames 1 and 2.

Further, an upper cover 25 and a seat 10 are disposed on the upper part of the upper body frame 1, thereby covering the upper entrance of the upper body frame 1. The side cover 24 has a substantially flat outer surface, and has cross pipes 40 at two locations on the lower green side.
An engaging piece 24a having a semicircular notch that engages with the engine hanger 19 is formed, and this engaging piece 24a is inserted through the notch 19e at the corner of the mounting slope 19c of the engine hanger 19 and engages with the cross pipe 40. This results in positioning in the front-back direction.

In addition, on the upper edge side, there are holes 6 in the mounting plate 61 provided in two places, front and rear.
1a is raised, and a protrusion 24b formed on the inner surface of the side cover 24 is inserted into the hole 61a via a grommet 62 to be attached to the vehicle body frames 1, 2. Also,
An engaging piece 24c is formed at the middle portion of the upper edge to prevent deformation of the side cover 24, and this engaging piece 24c is engaged with the lower end twill portion 38a of the seat hinge bracket 38 for positioning in the vehicle width direction. There is. In the motorcycle configured as described above, a fuel tank 29, an air cleaner 34, a storage compartment 30, a battery 31, etc. are arranged in the space surrounded by the left and right upper body frames 1 and the left and right lower body frames 2. , these parts will be covered by the above-mentioned lateral side covers 24. Therefore, the side cover 24 prevents rainwater, dust, etc. from entering these parts. The upper part is surrounded by a cover 25 and the seat 10, the lower part is an engine 18, the front is surrounded by a cover 37, and the rear is surrounded by a rear fender 13, forming a closed space to prevent rain and dust from entering from the outside. Furthermore, the presence of the side frame 24 also prevents rainwater, dust, etc. from entering from above with respect to the various electrical components disposed within the engine hanger 19. The vehicle body frames in the above-mentioned embodiments each have a pair of left and right upper vehicle body frames 1 and a lower vehicle body frame 2, but are not limited to such vehicle body frames. It can be applied to any vehicle body frame as long as it has a side frame.

For example, it can be applied to a vehicle body frame as shown in FIG. This body frame has 6 head pipes
3 and a backbone 64 corresponding to the upper body frame,
It consists of a down tube 65 corresponding to the lower body frame, a seat rail 66 and a support stay 67. In this case, the backbone 64 and the down tube 6
The side cover 68 (
(indicated by hatching). In this case, the engine is disposed at the bottom of the down tube 65 in an exposed manner. As explained above, the present invention includes an upper body frame that is divided into left and right sides from a head pipe and extends rearward with a width substantially equal to the width of the seat; The lower body frame, which is connected at the bottom of the seat, is spaced apart in substantially the same vertical plane, and a side cover with a substantially flat side that does not protrude outward from the body frame is provided between the two body frames. Since the upper entrance of the upper body frame is covered with an upper cover and sheet, it is possible to prevent rainwater, dust, etc. from entering various parts located in the area surrounded by the upper body frame and the lower body frame. It becomes.

Furthermore, since the left and right body frames have approximately the same width as the seat, the space enclosed by the body frames is maximized, and the interior becomes a large volume space for arranging auxiliary equipment.

Furthermore, since the side cover does not protrude outward from the vehicle body frame, the vehicle body frame also serves as a protective member for the side cover, effectively protecting the side cover, which is not strong. Furthermore, since the engine is exposed to the outside at the bottom of the lower body frame, the engine can be cooled well.

[Brief explanation of drawings]

Each figure shows an embodiment of the present invention. Figure 1 is a side view of the motorcycle, Figure 2 is a plan view of the same, Figure 3 is an exploded perspective view of the vehicle body frame and various parts, and Figure 4 is an external view of the motorcycle. Longitudinal cross-sectional view of the section,
FIG. 5 is a sectional view of a main part taken along line V-V in FIG. 4, and FIG. 6 is a schematic diagram of a vehicle body frame showing another embodiment. 1...Upper body frame, 2...Lower body frame, 3, 63...Head pipe, 18...Engine, 19...Engine hanger, 19a...Back slope, 19b. ...Side plate part, 19c... Mounting slope part, 19d... Hole, 19e... Notch, 24, 68...
...Side cover, 24a, 24c...Engagement piece,
24b... Protrusion, 25... Upper cover, 29... Fuel tank, 30... Container, 31
...Battery, 34...Air cleaner, 38...Bracket, 40...Cross pipe, 64...Backbone (
Upper body frame), 65...down tube (lower body frame). Old Man, Figure 2 Figure 5 Leopard Figure 6 Traditional Figure 3 *4 Figure

Claims (1)

[Claims] 1. An upper body frame that is divided into left and right sides from the head pipe and extends rearward with a width approximately equal to the width of the seat, and a lower body frame that is also divided left and right from the head pipe and extends rearward, and is connected to the upper body frame at the bottom of the seat. A side cover with a substantially flat side that does not protrude outward from both body frames is provided between the two body frames, and the upper opening of the upper body frame is connected to the upper cover and the seat. 1. A two-wheeled motor vehicle, characterized in that the engine is disposed at the bottom of the lower body frame so as to be exposed to the outside.