JP3296931B2 - Scooter with motor and engine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scooter which includes a motor and an engine, and which is driven by either one of the two motive powers by switching power between the two.

[0002]

2. Description of the Related Art Conventionally, motorcycles use an internal combustion engine that burns and explodes fuel such as gasoline or light oil and transmits the linear motion of a piston generated by the explosion to a crankshaft as rotational force via a connecting rod. Most common because they are driven. On the other hand, in recent years, as a substitute for the fuel such as gasoline, research and development of a motorcycle driven by a motor using electric power as a power source and a battery has been pursued for practical use.

[0003]

As described above, the mainstream of the power of a motorcycle is an internal combustion engine. However, this type of engine burns fuel to obtain the power. There is an environmental problem that it is generated, and there is also a problem that raw materials such as gasoline that are fuel are limited resources. In addition, the above-mentioned electric-powered type has a problem that a very large battery must be mounted due to a problem of battery capacity in order to secure a practical traveling distance with one charge, There is a problem that the output is not enough to drive on a gentle slope, and it has not yet reached the level of practical use. And the internal combustion engine and an electric combination of those powered covers both problems, although attempts have been made to take advantage of both disk
In order to mount it on the data, it is necessary to solve space problems and balance problems. The present invention solves the above-mentioned space problems and balance problems, and by using both of them in a switching type, a motor and an engine that can cover both problems and make use of the advantages of both. The purpose is to provide a scooter equipped with.

[0004]

In order to achieve the above object, a scooter equipped with a motor and an engine according to the present invention is provided.
Is constituted integrally with an engine and a transmission case extending from one side of a crankcase of the engine in which a V-belt type power transmission system is housed inside toward the rear of the vehicle body, and a rear wheel of a rear wheel is provided at a rear portion of the transmission case . In a motorcycle power unit configured to support one end of a drive shaft , a rear wheel drive
Extend one end of the shaft in the direction opposite to the transmission case, and
The output shaft of the motor is the axis of the rear wheel drive shaft.
So that it is located on the same axis as the rear end of the rear wheel drive shaft.
And can slide on the rear wheel drive shaft in the axial direction.
However, an integrated switching ring is provided in the
The switching is performed according to the sliding operation of the switching ring in the axial direction.
The ring can be detachably engaged with the output shaft of the motor.
It is characterized by having been constituted so that it can be done . Like
Alternatively, a direct drive motor is used for the motor.
Can be used.

[0005]

According to the scooter provided with the motor and the engine of the present invention having the above-described structure, the motor is driven in a low-power area such as a flat road so as to reduce the generation of exhaust gas. In addition, it is possible to reduce the consumption of fuel such as gasoline, and to drive a fuel-combustion engine in a region requiring a high output, such as a slope. Further, by combination with a fuel combustion engine, a battery for driving the motor can be miniaturized further, the motor, the motor
The output shaft of the motor is on the same axis as the axis of the rear wheel drive shaft.
So that it is located at the extended end of the rear wheel drive shaft.
It can slide on the moving shaft in the axial direction,
Is provided with an integrated switching ring,
The switching ring is driven by a motor in accordance with the sliding operation in the axial direction.
So that it can be detachably engaged with the output shaft of
Between the output shaft of the motor and the rear drive shaft.
Complicated mechanism for power transmission can be simplified
This makes the motor-side mechanism compact
And the left and right V-belts across the rear wheel.
Since the tilt transmission system and the motor are arranged , the problem on balance can be solved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a motor and an engine according to the present invention will be described.
One embodiment of a scooter will be described with reference to the accompanying drawings. In the following description, a motor and an engine
A power unit is called a hybrid power unit.
You. Make sure that the output shaft of the motor points in the front-rear direction of the vehicle.
Hybrid power unit with motor
And the output shaft of the motor according to the present invention is the same as the rear wheel drive shaft
Arranged on the axis (that is, the direction perpendicular to the front-rear direction of the vehicle)
Differences from the hybrid power unit
As can be seen, in the following description, FIGS.
Refer to, and make sure that the output shaft of the motor is
The hybrid power unit with the motor
A description will be given of the configuration of the motor and a scooter provided with the motor and the engine according to the present invention . Fig. 1 shows the motor so that the output shaft of
FIG. 1 is a schematic side view of a motorcycle equipped with a hybrid power unit in which a motor is disposed . In the figure, reference numeral 1 denotes a scooter type motorcycle, and 2 denotes a body frame. The vehicle body frame 2 includes a head pipe 2a that rotatably supports the steering shaft 3 and the front fork 4, a pair of left and right down tubes 2b whose tips are fixed to the head pipe 2a and extend obliquely downward toward the rear of the vehicle body. It comprises a pair of left and right back tubes 2c extending rearward from the rear end of the down tube 2b. The left and right front forks 4 rotatably support the front wheel 5. A battery 6 is housed between the pair of left and right down tubes 2b, and a fuel tank 7 is attached to the rear end of the back tube 2c. 8 in the figure
Denotes a seat, and a storage space 10 for storing a helmet 9 and the like is formed below the seat 8. The above-described body frame 2, battery 6, fuel tank 7, and storage space 10 are covered with a body cover 11.

In the figure, reference numeral 20 denotes a hybrid power unit according to the present invention. The hybrid power unit 20 has a front upper portion swingably suspended via a link (no symbol) on a bracket 2d fixed to the back tube 2c, and a back tube via a buffer unit (not shown) on the rear side. 2c elastically supported at the rear,
It is configured as a so-called swing unit. Also,
In the drawing, reference numeral 12 denotes a muffler. As shown in the drawing, the muffler 12 is disposed above a motor transmission case 42 described later so as to be substantially parallel to the transmission case 42. An exhaust pipe 13 that connects the muffler 12 and an engine 21 described later is disposed so as to be located between the rear wheel 14 and the transmission case 42.

Hereinafter, the structure of the hybrid power unit 20 shown in FIG. 1 will be described in detail with reference to FIG. FIG. 2 is a schematic sectional view of the hybrid power unit 20. As shown in FIG. 2, the hybrid power unit 20 is an air-cooled two-cycle single-cylinder engine 2
1, a transmission case 23 integrally extending from the left side of the crankcase 22 of the engine 21 toward the rear of the vehicle, and a V-belt continuously variable transmission 24 (hereinafter simply referred to as a transmission) housed in the transmission case 23. ), And a rear portion of the transmission 24 supports one end of a rear wheel drive shaft 15 of the rear wheel 14. The engine 21
Is covered with a shroud 25 from the right side of the crankcase 22 to the periphery of the cylinder. Crank case 22
Supports a crankshaft 26 extending in the width direction of the vehicle. A magnet generator 27 is attached to the right end of the crankshaft 26. A fan 27b having a plurality of fins (no reference numeral) is fixed to a flywheel 27a supporting the magnet of the generator 27. The fan 27b sucks outside air into the shroud 25 from an outside air inlet 25a provided in the shroud 25, and forcibly cools the engine 21. On the left side of the crankshaft 26, a one-way clutch 28 and a driving pulley 29 of the transmission 24 are mounted. The drive-side pulley 29 is composed of a movable pulley half 29a and a fixed pulley half 29b arranged so as to face each other, and the movable pulley half 29a is slidable on the crankshaft 26 in the axial direction. , And the fixed pulley half 29 b is fixed to the crankshaft 26. The movable pulley half 29a is fixed to the fixed pulley half 29b in accordance with the rotation speed of the engine 21.
Side to increase the winding radius of the V-belt 30,
Further, when the rotation speed is reduced, the V-belt 30 is slid in a direction away from the fixed pulley half 29b to reduce the winding radius of the V-belt 30. The rotational force of the driving pulley 29 is
0 to the driven pulley 31. The driven pulley 31 is composed of a fixed pulley half 31a fixed to a support cylinder (no reference numeral) loosely fitted to the driven shaft 32, and a movable pulley half 31b slidable on the support cylinder in the axial direction. The movable pulley half 31b of the driven pulley 31 is constantly urged toward the fixed pulley half 31a by a spring 33. However, the spring 33 moves in accordance with a change in the winding radius of the V-belt 30 on the drive pulley 29. And the sliding radius of the V-belt 30 can be changed by sliding in the direction away from the fixed pulley half 31a, that is, toward the centrifugal clutch 34. The rotational force transmitted to the driven pulley 31 causes the centrifugal clutch 34 to rotate via a support cylinder integrally formed with the fixed pulley half 31a, and the centrifugal clutch 34 rotates at a predetermined speed. And the rotational force is transmitted through the driven shaft 32 to reduce the gears 35,
The transmission is performed in the order of the rear wheel drive shaft 15 to drive the rear wheel 14. On the opposite side of the transmission case 23 described above with respect to the rear wheel 14, a motor drive transmission case 42 that houses the drive motor 40 and a power transmission system 41 that transmits the rotational force of the motor 40 to the rear wheel 14 is provided. It is arranged. The motor drive transmission case 42 has a front portion formed of the aforementioned shroud 2.
5 and the transmission 2 of the rear wheel drive shaft 15 at the rear
4 is supported at the opposite end. The motor drive transmission case 42 includes a drive motor 40 at the front thereof, an axial direction thereof being parallel to the V-belt 30 and a horizontal plane, and a power transmission system 41 connected to the drive motor 4.
0 and the rear wheel drive shaft 15 are housed so that their axes are parallel to the horizontal plane, and the power transmission path from the drive motor 40 to the rear wheel drive shaft 15 is linear and horizontal. Like that. The drive motor 40 is driven by the battery 6 described above. The power transmission system 41 includes a reduction gear group 43 and a switching mechanism 44, and transmits the torque of the drive motor 40 to the rear wheel drive shaft 15.

Hereinafter, the configurations of the reduction gear group 43 and the switching mechanism 44 will be described with reference to FIG. FIG. 3 is a partially enlarged cross-sectional view of the motor drive transmission case 42. A gear 40b is a bolt (unsigned) at the tip of the rotating shaft 40a of the motor 40.
The gear 40b is engaged with the reduction gear 43a. When the gear 43a is rotated by the motor 40, the shaft 43b is rotated via the gear 43a. Rotate. The switching mechanism 44 has a rotating shaft 44b whose both ends are pivotally supported by the transmission case 42, and the reduction gear 44a is fixed to the rotating shaft 44b by a suitable fixing means such as spline fitting. The rotating shaft 44b is formed in a columnar shape having a hole (no symbol) penetrating the rotating shaft 44b, and a slit 44c extending in the axial direction is formed in a lower portion. A switching shaft 44d is slidably inserted in the through hole of the rotating shaft 44b in the axial direction. At the lower end of the switching shaft 44d, an engaging pin 44e extending in a direction perpendicular to the shaft is fixedly provided.
The engagement pin 44e projects outside the rotation shaft 44b through the slit 44c. The engagement pin 44e is
A switching gear 44f integrally provided in the rotating direction so as to be slidable in the axial direction on the rotating shaft 44b is engaged with a suitable engaging member such as a circlip (no symbol). As a result, the switching gear 44f slides up and down within the range of the slit 44c as the switching shaft 44d moves up and down. A spring 4 is provided below the engagement pin 44e.
The switching shaft 44d is always urged upward by the spring 44g, and is stopped by a switching lever 44h provided at the upper end of the switching shaft 44d. One end of the switching lever 44h is rotatably supported by the motor drive transmission case 42. The switching lever 44h is constantly urged upward by an elastic member such as a spring (not shown), and is rotated by a rotation stopping ball 44j as shown in FIG.
Is stopped at one of the position indicated by the solid line and the position indicated by the one-dot chain line.

FIG. 3 shows a state in which the switching mechanism 44 is separated from the center line C as a center. In the state on the left side of the upper center line C in FIG. 3, the switching lever 44h is up,
Accordingly, the switching shaft 44d is also raised by the action of the spring 44g, and the switching gear 44f is in a free state. This state is a so-called motor drive OFF state in which the rotational force of the drive motor 40 is not transmitted to the rear wheel drive shaft 15. From this motor drive OFF state, the switching lever 44
When h is rotated downward and fixed at the position indicated by the dashed line in FIG. 3, the switching shaft 44d also slides downward against the force of the spring 44g. With the sliding of the switching shaft 44d downward, the switching gear 44f is also slid downward, and is connected to the rear wheel drive gear 45 integrally fixed to the rear wheel drive shaft 15 by a suitable fixing member such as a bolt. Mesh. When the switching gear 44f meshes with the rear wheel drive gear 45, the rotational force of the drive motor 40 becomes
The power is transmitted to the rear wheel drive gear 45 to rotate the rear wheel drive shaft 15. This state is a state on the right side of the center line C in FIG. 3, which is a so-called motor drive ON state. When the vehicle is driven by the engine 21, the hybrid power unit 20 configured as above
4, when the motor is turned off to drive the rear wheels 14 via the transmission 24 in the transmission case 23 and when the vehicle is driven by the drive motor 40, the engine 21
Is stopped, and the centrifugal clutch 32 is disengaged.
The rear wheel drive shaft 15 is disconnected from the power transmission system on the engine 21 side such as the engine 9 or 31, and the switching mechanism 44 is turned on to drive the motor. The power is transmitted to the wheel drive shaft 15 to drive the rear wheel 14. In the first embodiment described above,
The motor drive transmission case 42 is arranged so that the internal power transmission system path is horizontal, but this is not limited to the present embodiment, and the motor drive transmission case 42 is disposed at a position opposite to the rear wheel 14. The rear wheel drive shaft 1 may be provided in any manner as long as it is provided.
It may be inclined obliquely upward with the center at 5, or may be inclined obliquely downward.

[0011] Next, with reference to FIG. 4, motor according to the present invention
Of a scooter equipped with a motor and an engine
I will do it. FIG. 4 shows a motor and an engine according to the present invention .
Hybrid type power unit 6 for equipped scooter
0 is a schematic sectional view of FIG. The hybrid power unit 60 also has the engine 2 on the left and right across the rear wheel 14 ′, similarly to the hybrid power unit 20 shown in FIG.
A transmission case 23 'for accommodating a V-belt continuously variable transmission 24' constituting the power transmission system 1 ', and a DD motor 61 (abbreviation of direct drive motor; hereinafter simply referred to as drive motor 61). A motor drive transmission case 62 to be housed is disposed. Engine 21 'and V
Since the belt continuously variable transmission 24 'has the same configuration as that of the example shown in FIG. 2, the description is omitted. The motor drive transmission case 62 is attached to the shroud 25 ′ by the support arm 6.
3 is supported. The motor transmission case 62 accommodates the drive motor 61 therein, and is configured so that the switching arm 64 can transmit and cut off power to the rear wheel drive shaft 15 ′. The drive motor 61 includes a core 61a rotatably supported by a transmission case 62 and a coil 61b. When the coil 61b is excited by a battery mounted on the vehicle, the core 6a
1a rotates.

Hereinafter, the drive motor 61 and the rear wheel drive shaft 1 will be described.
The power transmission mechanism between the power transmission mechanism 5 ′ and the power transmission mechanism 5 ′ will be described in detail with reference to FIG. FIG. 5 is a partially enlarged sectional view of the power transmission mechanism. The output shaft 65 of the core 61a is rotatably supported by the motor drive transmission case 62 via the bearing 66 as described above. Inside the output shaft 65, a cylindrical switching boss 67 is integrally fixed with a bolt 68. The switching boss 67 is connected to a switching ring 70 described later.
The rear wheel drive shaft 15 ′ is rotatably supported on the inner side thereof via a power transmission cylinder 69. A switching ring 70 is provided on the power transmission cylinder 69,
It is provided using a suitable connecting means such as a spline fitting so as to be slidable in the axial direction and integrated in the rotating direction. The switching ring 70 has a recess 70 a that engages with the projection 67 a of the switching boss 67. The switching arm 64 is connected to the switching ring 70. The switching arm 64 has one end rotatably supported by the motor drive transmission case 62 and is configured to be operable from outside the transmission case 62, though not shown. In Figure 5 shows a lateral separate states about the center line C, as shown in the drawing, the switching arm 64 is rotated downward (lower side in FIG. 5) switching ring 70
Is slid toward the rear wheel 14 '(the lower side in FIG. 5), and the switching ring 70 is released from the switching boss 67 to drive the rear wheel drive shaft 15'. It is in a so-called motor drive OFF state rotatably supported by the output shaft 65 of the motor 61. The switching arm 64
The upper is rotated (the upper side in FIG. 5) switching ring 7
0 is slid to the drive motor 61 side, the switching ring 70
The projection 67a of the switching boss 67 is engaged with the recess 70a, and the rotation of the output shaft 65 of the drive motor 61 is transmitted to the rear wheel drive shaft 15 ', that is, the motor drive is turned on.
When the engine is driven, the hybrid power unit 60 having the above-described configuration is configured to switch the switching arm 6.
At 4, the motor drive is turned off, the rear wheel 14 'is driven via the transmission 24' in the transmission case 23 ', and when the vehicle is driven by the drive motor 61, the engine 21' is stopped. By disengaging the centrifugal clutch 34 ', the rear wheel drive shaft 15' is disconnected from the power transmission system on the engine 21 'side, such as the pulleys 29', 31 ', and the drive arm 61 is turned on by the switching arm 64. Is transmitted to the rear wheel drive shaft 15 'to drive the rear wheel 14'.

[0013] configured as described above, motor according to the present invention
In the embodiment of the scooter provided with a motor and an engine,
The motor 61 uses a DD motor, and the motor 61
Its axis is located on the same axis as the axis of the drive shaft 15 '.
So that the motor 61 and the drive shaft 15 ′
Complex power transmission system without requiring a motor drive transmission case 62 has a simple structure becomes smaller amount during, hybridization
The entire power unit 60 is constructed as shown in FIGS.
This has the effect of being more compact than the hybrid power unit . Further, the hybrid power unit 60 of this embodiment extends the rear wheel drive shaft 15 ' of the engine 21' having the conventional V-belt continuously variable transmission 24 ' to the opposite side of the transmission 24'. And
A motor transmission cable is attached to the extended portion of the rear wheel drive shaft 15 '.
Since it is configured by attaching
There is an effect that it can be manufactured relatively easily from a power unit used in a conventional vehicle.

[0014]

According to the present invention, a motor equipped with a motor and an engine according to the present invention is provided.
The cooter is configured integrally with an engine and a transmission case extending from one side of a crankcase of the engine having a V-belt type power transmission system housed thereinto toward the rear of the vehicle body. in motorcycle power unit that is configured to support one end of the drive shaft of the rear wheel at the rear, after
One end of the wheel drive shaft extends in the direction opposite to the transmission case.
And the output shaft of the motor is
Of the rear wheel drive shaft so that it is on the same axis as the
Located at the protruding end, slidable on the rear wheel drive shaft in the axial direction
Function, but with an integrated switching ring in the direction of rotation.
According to the sliding operation of the switching ring in the axial direction,
The switching ring is detachably engaged with the output shaft of the motor.
So that the mechanism on the motor side can be
It is possible to make it compact, and sandwich the rear wheel
The V belt transmission system and the motor are arranged on the left and right
So it can solve balance problems.

[Brief description of the drawings]

FIG. 1 so that the output shaft of the motor faces the front-rear direction of the vehicle.
FIG. 1 is a schematic side view of a motorcycle equipped with a hybrid power unit in which a motor is arranged .

FIG. 2 is a hybrid power unit 20 shown in FIG.
FIG.

FIG. 3 is a partially enlarged sectional view of a motor transmission case 42 in FIG. 2;

FIG. 4 is a screen provided with a motor and an engine according to the present invention.
Of the hybrid power unit 60 in the motor
FIG.

5 is a partially enlarged cross-sectional view of a power transmission mechanism in the hybrid power unit shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Scooter type motorcycle 2 Body frame 2a Head pipe 2b Down tube 2c Back tube 2d Bracket 3 Steering shaft 4 Front fork 5 Front wheel 6 Battery 7 Fuel tank 8 Seat 9 Helmet 10 Storage space 11 Body cover 12 Muffler 13 Exhaust pipe 14 Rear wheel Reference Signs List 15 rear wheel drive shaft 20 hybrid power unit 21 engine 22 crankcase 23 transmission case 24 V-belt continuously variable transmission 25 sheroud 25a outside air intake 26 crankshaft 27 magnet generator 27a flywheel 27b fan 28 one-way clutch 29 Driving pulley 29a Movable pulley half 29b Fixed pulley half 30 V belt 31 Driven pulley 31a Fixed pulley half 31b Movable pulley half 32 Followed shaft 33 Spring 34 Centrifugal clutch 35 Reduction gear group 40 Drive motor 40a Rotating shaft 40b Gear 41 Power transmission system 42 Motor drive transmission case 43 Reduction gear group 43a Reduction gear 43b Shaft 43c Reduction gear 44 Switching mechanism 44a Reduction gear 44b Rotation shaft 44c Slit 44d Switching shaft 44e Engagement pin 44f Switching gear 44g Spring 44h Switching lever 44j Detent ball 45 Rear wheel drive gear 14 'Rear wheel 15' Drive shaft 21 'Engine 22' Crank case 23 'Transmission case 24' V belt continuously variable transmission wherein transmission 29 'driving pulley 31' driven pulley 34 'centrifugal clutch 60 hybrid-type power unit 61 DD motor 61a cores 61b coil 62 motor drive transmission case 63 supporting arm 64 the switching arm 65 the output shaft 66 bearing 67 off Boss 67a protruding portions 68 volt 69 power transmission tube 70 switching ring 70a recess

Continuation of the front page (56) References JP-A-6-64451 (JP, A) JP-A-3-104795 (JP, A) JP-A-5-26328 (JP, A) JP-A-3-208771 (JP) JP-A-4-292284 (JP, A) JP-A-6-321170 (JP, A) JP-A-7-242190 (JP, A) JP-A-60-124525 (JP, A) JP-A-63-232092 (JP, A) JP-A-63-180583 (JP, A) JP-A-3-114449 (JP, U) JP-A-2-60694 (JP, U) JP-B-63-24190 (JP, A) B1) US Pat. No. 4,397,369 (US, A) British Patent Application Publication No. 2,265,588 (GB, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B62M ^7/ 00-7/14 B62M 23/00-23 / 02 B60K 6/00-6/12 B60K 8/00

Claims (2)

(57) [Claims] An engine (21 ') is integrated with a transmission case (23') extending from one side of a crankcase (22 ') of the engine containing a V-belt type power transmission system to the rear of the vehicle body. And a drive shaft for a rear wheel (14 ') at the rear of the transmission case (23').
'In motorcycle power unit that is configured to support one end of the rear divided shafts (15 (15)') said transmission case one end (23 ') and is extended in the opposite direction, the motor ( 61), the output shaft (65) of the motor (61) is
To be located on the same axis as the axis of the wheel drive shaft (15 '),
It is arranged at the extension end of the rear wheel drive shaft (15 ') and is slidable on the rear wheel drive shaft (15') in the axial direction.
However, an integrated switching ring (70) is provided in the rotation direction,
According to the sliding operation of the switching ring (70) in the axial direction,
The switching ring (70) is detachable from the output shaft (65) of the motor (61)
A scooter provided with a motor and an engine, wherein the scooter is configured to be able to engage with the motor . 2. The motor according to claim 1, wherein the motor is a direct drive motor.
Scooter with engine.