Motor vehicles – Special wheel base – Having only two wheels
Patent
1979-06-11
1982-05-25
Silverstrim, John P.
Motor vehicles
Special wheel base
Having only two wheels
74 1584, 123 54A, 123179R, B60K 504, B62M 900
Patent
active
043312128
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
This invention relates to a motorized two-wheeled vehicle such as a motorcycle or the like chiefly of such a type that an internal combustion engine thereof is a multiple cylinder engine such as of 4 cylinders, 6 cylinders or the like.
2. Background Art
There has been hitherto known, with this kind of two-wheeled vehicle, such a type one that a vehicle body frame having a front wheel and a rear wheel is provided thereon with an internal combustion engine in front and a transmission in rear so that an output of the engine may be transmitted through the transmission to the rear wheel. It has been usual, in this case, that a crankshaft on the bottom portion of the engine is provided on its right and left end portions with an A.C. generator and a control member for an ignition circuit, for instance, a pulse generator or a contact breaker. This arrangement, however, is attended with the following inconvenience especially where the engine is constructed to be of such a multiple cylinder type that plural ones, for instance, 6 ones of a cylinder extending nearly vertically are disposed laterally.
Namely, in this case, there is caused such an inconvenience that the crankshaft per se becomes comparatively large in length laterally, and the A.C. generator and the control member as mentioned above on its both end portions act to further increase the length thereof, and thus the two-wheeled vehicle is remarkably increased in width locally and the appearance thereof tends to be injured.
DISCLOSURE OF THE INVENTION
This invention has for its object to provide a motorized two-wheeled vehicle which is free from the foregoing inconvenience, and in such a type of vehicle that a vehicle body frame having a front wheel and a rear wheel is provided thereon with an internal combustion engine in front and a transmission in rear so that an output of the engine may be transmitted through the transmission to the rear wheel, it is characterized in that an intermediate driving shaft is provided laterally between a laterally extending crankshaft on the bottom portion of the engine and a laterally extending input shaft at the front portion of the transmission so that rotation of the crankshaft may be transmitted through the intermediate driving shaft to the input shaft, and an A.C. generator and a control member for an ignition circuit, for instance, a pulse generator or a contact breaker are provided on both end portions of the intermediate driving shaft.
Thus, according to this invention, the intermediate driving shaft is interposed between the crankshaft of the engine and the input shaft of the transmission in the rear thereof, and the A.C. generator and the control member for the ignition circuit are disposed on both end portions thereof, so that this invention has such advantageous effects that the foregoing inconvenience of the conventional arrangement in which the A.C. generator and the control member are disposed on both end portions of the crankshaft can be removed, and thus especially in the case where the same is applied to such a case that the engine is a multiple cylinder type one and accordingly the crankshaft is laterally long, there can be obtained such a vehicle that the whole thereof is comparatively small in width and the appearance thereof is excellent.
In this case, it is desirable that the A.C. generator and the control member for the ignition circuit as mentioned before which are electric parts are provided at comparatively high positions together with a starter motor which is also an electric part, and thus those are protected from rain water or the like from the surface of the earth.
This invention has for its other object to provide a motorized two-wheeled vehicle satisfying this requirement, and it is characterized in that, in the foregoing arrangement, the driving shaft is so provided as to be positioned higher than the crankshaft, and there is provided to be positioned in the rear thereof and at nearly the same level therewith a starter motor connected to a starter gear on
REFERENCES:
patent: 1986066 (1935-01-01), Marski
patent: 3227236 (1966-01-01), Burton
patent: 4165728 (1979-08-01), Matsumoto
Honda Giken Kogyo Kabushiki Kaisha
Silverstrim John P.
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