JPS58136519A - Autobicycle - Google Patents

Abstract

PURPOSE:To set a suspension position to a low level and locate a seat to less height as a whole, by effectively utilizing a twin carburetor in an autobicycle provided with a mono-cross suspension. CONSTITUTION:Lateral ventilator pipes 5a, 5b connect air cleaners 4a, 4b to twin carburetors 6a, 6b, and parts of said pipes 5a, 5b connected to sides of the cleaners 4a, 4b are located respectively in outside parts of a suspension 3 and extended to the carburetors 6a, 6b in the front in such a manner as to roll in and mingle with said suspension 3 when viewed from the side. In this way, a bottom side of the suspension 3 can be arranged downward by the vertical height l for upper sides of the pipes 5a, 5b. As a result, overall height of the suspension 3 is decreased, and a seat set in the above of the suspension 3 can be located to less height.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a motorcycle. More specifically, the present invention relates to an improvement in a motorcycle equipped with a so-called monocross suspension as a rear wheel suspension.

When mounting a single-cylinder engine with a single carburetor on a motorcycle with a so-called mono-suspension configuration, in which the rear wheel suspension is installed in a single diagonal direction between the rear end of the head pipe and the upper end of the rear arm. Since the viewing pipe that connects the air cleaner and the carburetor with the monocross suspension above, the position of the monocross suspension located above inevitably has to be moved upwards. As a result, a problem arises in that the seat provided at the top of the suspension has to be placed at a very high position as a whole.

The purpose of the present invention is to eliminate the above-mentioned interlayer and provide a motorcycle with a monochrome suspension! An object of the present invention is to provide a motorcycle capable of lowering the height of the seat F even if it is equipped with a cylinder engine.

The motorcycle of the present invention that achieves the above object has a single suspension provided obliquely between the main frame extending rearward from the head pipe and the upper end of the rear arm, and a single cylinder with twin carburetors installed below the suspension. The engine is mounted, and left and right ventilation pipes communicating between the air cleaner provided above the rear arm and the twin carburetor are arranged so as to intersect with the suspension engine on the side IIm.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below with reference to embodiments shown in the drawings.

In the figure, 1 is a main frame identified as extending rearward from the head pipe 10, and 2 is a rear arm. In the darkness between the loose end of the main frame 1 and the upper end of the rear arm 2, there is a single suspension suspension 3 extending in the front-rear direction from the center of the fuselage and extending diagonally downward. However, W% nosusbensidine was completely destroyed. A four-stroke single-air engine 7 is mounted below the suspension 3, and this fu-airan engine 7 is equipped with a twin carburetor 6a.

6b are connected. On the other hand, above the rear arm 2, air cleaners 4a and 4b are provided on the left and right sides of the tank body, and the air cleaners 4a and 4b and twin carburetors 6a and 6
The ventilation pipes 5a and 5b of the rubber tubes are reminiscent of the darkness between the two. 8 is a front wheel, and 9 is a rear wheel.

As is clear from Figures 2 to 4, the air cleaner 4
The left and right ventilation pipes 5a and 5b connecting the air cleaner 4a and 4b with the twin carburetor 6al and 6b are connected to the air cleaner 4.
The parts connected to sides a and 4b are located on the outside of the suspension 3, and extend to the front twin carburetors 6a and 6b so as to wrap around the suspension engine 3, so as to intersect with the suspension engine 3 in side view. It has become. In the illustrated embodiment, the ventilation pipes 5a and 5b are located in the slightly lower half of the outer side of the suspension 3, and when viewed from above in FIG. When viewed from the side, a portion of the ventilation pipes 5a and 5b intersect with the suspension pipe 3, forming an overlapping relationship.

As mentioned above, a single-engine engine with a twin carburetor is adopted, and the communication pipes 5a, 5b connecting the twin carburetors 5a, 5b and the air cleaners 4a, 4b are crossed and overlapped with the sub-benzi engine 3 at the side W11. As shown in FIG. 4, the lower surface of the suspension pipe 5 is
It becomes possible to dispose it downward by a height E in the vertical direction with respect to the upper surface of b. As a result, the overall height of the suspension 3 is lowered, and the seat F installed above it is lowered.
We are making it possible to remember. This low seat arrangement makes it possible to stabilize the fuselage 11.

As described above, in the motorcycle of the present invention, one suspension engine is provided diagonally between the main frame extending rearward from the head pipe and the upper end of the rear arm, and a twin carburetor-equipped suspension engine is provided below the suspension engine.琐蒐■
The engine is mounted, and the left and right ventilation pipes that communicate the air cleaner provided above the rear arm and the twin carburetor are arranged so as to intersect with the suspension engine when viewed from the side. Even though it is a famous model equipped with a single engine, the effective use of twin carburetors makes it possible to lower the suspension position and lower the overall seat height. Accordingly, it becomes possible to improve tS* stability.

[Brief explanation of drawings]

FIG. 1 shows the side W@21 of the motorcycle according to the embodiment of the present invention! l The side imm of the motorcycle mm section. Figure 3 is a plan view of the main part, number 41! l is the 3rd IIl■
−■ It is a sectional view. 1-Φ main frame, 2 II I+ rear arm, 3
・Suspension, 4a, 4b...Air cleaner, 5a, 5b...Vent pipe, 6a + 6b...Twin carburetor, 7...
Engine, 10...Head pipe. Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita

Claims (1)

[Claims] A single suspension is installed diagonally between the main frame extending rearward from the head pipe and the upper end of the rear arm! A Fu III engine with twin carburetors is mounted below the suspension, and left and right ventilation pipes communicating between the air cleaner provided above the rear arm and the twin carburetors are arranged so as to intersect with the suspension in side view. A motorcycle featuring: