JPS59213584A - Drive for car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a driving device for a vehicle such as a motorcycle.

Conventionally, in some motorcycles, for example, the input side of a transmission device is operatively connected to an engine, and the output side of this transmission device is operatively connected to a rear wheel via another transmission device.

” - When a starting device is installed on the engine, if this starting device is installed on the transmission side, there is a risk that the strength of the transmission case will be reduced due to processing of the transmission case of the transmission device. Depending on the configuration, there is a risk that the connection structure between the engine and the transmission device will become complicated.

This invention was made in view of the above circumstances, and aims to facilitate the assembly of a starting motor in a vehicle.The invention is characterized by the fact that the engine crankshaft and the transmission device are In a vehicle where the crankshafts are coaxially arranged side by side and one end of the crankshaft is connected to a transmission, the other end of the crankshaft is connected to a starter motor.

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

1 to 4 show a first embodiment, in which a vehicle l is a two-wheeled motor vehicle shaped like a bicycle. Reference numeral 2 denotes a vehicle body frame. A handle 4 and a front wheel 5 are provided at the front part of the frame 2 via a front fork 3, and a rear wheel 6 is provided at the rear part of the frame 2.
is provided. An engine 7 is connected to an ignition generator 8, and the starter 8 is connected to a starter 9. The rear wheel 6 is connected to a deceleration transmission device 10 and a winding transmission means 4.
The engine 7 is connected to the engine 7 via the engine 5. Further, the generator 8, the starter device 9, and the transmission device 10 are arranged on the center of the crankshaft 11 of the engine 7, and are arranged in phase with each other. J:, and are each detached from 7i as a unit.

] - The vehicle body frame 2 includes a main frame 15 having a steering shaft tube 14 at the front end, a sub-plate 17 extending from the rear end of the main frame 15 in the - direction via the gear case 16, and a sub-plate 17 extending from the gear case 16 to the rear. a rear plate 18 extending to the rear frame 17 . ! =? The frame 18 has a pair of left and right stays 19 provided thereon.

1- The crankshaft 11 of the engine 7 is supported by a cylindrical crankcase 20, and the power, ignition generator 8 is supported by the fan 2
1, an ignition coil 23, and a generator case 24 that covers these devices, and the magneto 22 is fixed to the upper end of the crankshaft 11.

The generator case 24 includes the fan 21 and Magne i-2.
It has a cylindrical case 24a made of steel plate that covers the external part of the cylindrical case 24a, and upper and lower cover plates 24b and 24c fixed to the upper and lower ends of this cylindrical case 24a, and this cover plate 24c is detachable from the crankcase 20. is fixed to. Further, a part of the cylindrical case 24a is expanded to form a cowling 24d that covers the cylinder of the engine 7, and this cowling 24d has the following features:
It is shaped so that the air from the fan 21 is guided into the cylinder as cooling air. 25 is an exhaust pipe of the engine 7, 26 is a muffler, 27 is a carburetor, and 28 is an air cleaner.

The starting device 9 includes a cylindrical cover member 29 fixed to the upper cover plate 24b, and a starting motor 30 provided within the cover member 29. The starting motor 30 is powered by a first planetary Gear reduction gear 31, Wa, Wooi type. The first care signal is transmitted from L4 through 322 to the magneto 22 marked □'', thereby rotating the crankshaft 11.The cover member 29 also includes a bracket h.
19a, one end of the stay 18 is pivotally supported, and the seat 33 is supported so as to be vertically adjustable.

The transmission device IO includes an automatic centrifugal clutch 34 and a second M
Spur tooth iF1. It consists of a reduction gear device 35 and a clutch 34.
A driving side 34a of the crankshaft 11 is fixed to the lower end of the crankshaft 11, and a rotation driven side 34b is connected to an input shaft 36 of a speed reduction device 35.

The speed reducer 35 receives input @11 using a two-stage planetary gear mechanism.
36 is decelerated and transmitted to the output shaft 37. - The end of the cylindrical transmission case 38 of the transmission device 10 is fixed to the crankcase 20, and the lower end is fixed to the gear case 16.

-1- The crank case 20, the generator case 24, the cover member 29, and the transmission case 38 are fixed together to form a cylindrical body, and this cylindrical body constitutes almost the entirety of the sub-frame 17. .

The power of the force 37 is transmitted to the bevel pinion 40 via a one-way second clutch 39. Also,
The gear case 16 is provided with a pedal shaft 42 having pedals 41°41. A bevel gear 44 that meshes with the pinion 40 via a one-way third clutch 43 is sunk into this pedal shaft 42 . This third clutch 43
transmits power only from the petal shaft 42 to the bevel gear 44.

This bevel gear 44 is interlocked and connected to the rear wheel 6 via the winding transmission means 45, and this transmission means 45 is connected to the bevel gear 4.
4, an input chain wheel 45b provided on the rear wheel 6, and a chain 45C wound around both chain wheels 45a and 45b.

I will explain to Ushio the operating procedure for the vehicle I with the above configuration.

The engine 7 can be started by a starter 9. On the other hand, there are three types of running methods. 'S l is a case where only human power is used, and the pedal 41 is depressed to rotate the pedal shaft 42, and this power is transmitted to the rear wheel 6 through the third lever launch 43.
transmitted to. In this case, the power is not transmitted to the output shaft 37 by the second clutch 39. The second case is when only the engine 7 is used, and the power of the engine 7 is provided by the second clutch 39.
is transmitted to the rear wheels 6 via. In this case, the power is not transmitted to the pedal shaft 42 by the third latch 43. The third case is when the engine 7 and the pedal shaft 42 are driven together,
The larger power is transmitted to the rear wheel 6 by the second and third clutches 39 and 43.

According to the configuration of the embodiment described in , the starting device 9 also has the crank 111.
Since the sub-frame 17 is arranged coaxially with the sub-frame 17, assembly of these devices is facilitated, and the radially outward protrusion of the sub-frame 17 is reduced, which is advantageous in terms of appearance.

Each of the following figures shows another embodiment, and parts different from the above embodiment will be explained, and common parts will be indicated with a symbol - in the drawings and their explanation will be omitted.

5 and 6 show a second embodiment, in which the generator case 24
A support member 46 is provided on two sides of the generator case 24, and the support member 46 is connected to a plate 47, which is fixed to the two sides of the generator case 24.
It consists of a cylindrical body 48 that is clamped onto the upper surface of a base plate 47, and the ends of the stays 19° 19-1 are pivotally supported on the cylindrical body 48. Behind this cylindrical body 48, a starting electric motor R30 is fixed to a base plate 47 between both stays 19 and 19, and the power of this electric motor 30 is transmitted to the magnet I-22 via the first clutch 32 and reduction gear mechanism 49. communicated.

According to this embodiment configuration, the dead space between both stays 19, 19 is effectively utilized. Further, the sub-frame 17 can be shortened, so that the height of the seat 33 can be adjusted for a long time.

FIG. 7 shows a third embodiment, in which a lower cover plate 24c extends forward, and a starter motor 30 is sunk into this extended portion.

Although the above example is based on the illustrated example, the main frame 2 may be constituted by an assembly of the engine 7, the starter device 9, and the transmission device IO.

According to this invention, in general, the connection between the engine crankcase and the transmission case of the transmission device requires a strong connection state, and the engine and the transmission device are required to be connected with a simple structure. However, in this invention, the starting motor is connected to the crank □1 shaft end on the opposite side of the transmission, so the installation of this motor has no effect on the above-mentioned connection between the engine and the transmission. It can be done without giving. Therefore, it is easy to assemble the starter motor to the crankshaft, and various connection states between the two can also be easily selected.

[Brief explanation of the drawing]

The figures show embodiments of the invention, and Figures 1 to 4 are
1 is a side view of the vehicle, FIG. 2 is a partially enlarged sectional view of FIG. 1, FIG. 3 is a partial view taken along the line ■-■ in FIG. 2, and FIG. 5 and 6 show the second embodiment, FIG. 5 is a side partial sectional view of the starting device, and FIG. 6 is a VI-VI edge of FIG. 5. FIG. 7 is a side partial sectional view of the starter device according to the third embodiment. 1. Vehicle, 6. Rear wheel (running wheel), 7. Engine,
8. Fist ignition generator, 9. Starting device, 10. Transmission device, 1l-- crankshaft, 20-. crank case, 30
- Fist-start electric motor, 38... Transmission case, 45. Φ winding transmission means (other transmission devices).

Claims (1)

[Claims] 1. A transmission device is installed coaxially with one end side of the crankshaft of the engine installed in the vehicle body, and the crankshaft and the input side of the transmission device are interlocked and connected, and the engine crankcase and the transmission of this transmission device are connected together. In a vehicle in which the case is fixed and the output side of the transmission device and the running wheels are interlocked with another transmission device, a starter motor is interlocked with the other end of the crank. Vehicle drive system.