JP2573340B2 - Spiral spring type starting device for general gasoline engine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a spiral spring type starting device for an engine, which can be used in place of an automatic starting device such as a cell starter.

[Conventional technology]

The present applicant has filed a Japanese Patent Application No. 63-10860 with a starter using a spiral spring as an energy storage device as a human-powered starter that replaces a reel type starter of a small engine.
In addition, a starting device having a manual crank which is detachably engaged with a rotary drive shaft of a spiral spring has been filed as Japanese Utility Model Application No. 63-87945.

(1) The outline of the invention of Japanese Patent Application No. 63-10860 will be described with reference to FIG.

In FIG. 15, the components that make up the starting device are the frame
A26 and a frame B27 are combined and attached to the engine 1 by the frame A26.

The frame B27 is assembled with a DC motor 25, which is a drive source of the storage spring 11, a reduction gear 23, 21, a planetary gear reducer 16, a shaft 18, and a ball bearing 20 having a high reduction ratio. The spring energy storage box 10 fixed to the output shaft 16-5 of the components of the speed reducer 16 is driven.

The spring storage box 10 is connected to the shaft 1 via the frame A26 and the ball bearing 9.
The shaft 2 and the shaft 12 are provided on the spring storage box 10 side, and are supported by a ball bearing 13 provided at the center of rotation thereof and a support system of the planetary gear reducer 16.

A starting ratchet wheel 5 and a starter ratchet wheel 4 fixed by the shaft 12 and a detent key 8 are mounted on the engine side of the shaft 12, and the starting ratchet wheel 5 is prevented from rotating by the starting ratchet 6. The starter ratchet wheel 4 is provided with a protruding portion 35 so that a starter claw 3-3 provided on the generator rotating magnetic pole assembly 3 is provided.
4 and engage.

Rotation control of the spring energy storage box 10 is performed by engagement of a ratchet claw 14-1, which is a component of the ratchet assembly 14, with a tooth portion 36 provided on an outer peripheral portion of the spring energy storage box 10.

The engagement between the starting ratchet wheel 5 and the starting ratchet 6 is determined by a concave portion provided on the outer periphery of the starting ratchet wheel 5.
37 and the starting ratchet 6 are engaged with each other. When the ratchet 6 is disengaged, the ratchet wheel 5 becomes rotatable.

Both ends of the plate-shaped energy storage spring 11 are connected to the peripheral wall of the spring energy storage box 10 and the shaft 12.
Is fixed by the groove provided in.

Now, when the rotation of the starting ratchet wheel 5 is locked by the starting ratchet 6 and the spring storage box 10 is rotated clockwise, the leaf spring 11 is wound around the shaft 12 and stored.

Further, when the X-direction rotational force of the energy storage box 10 is lost in the state of accumulated energy, the rotation of the energy storage box 10 in the counterclockwise direction due to the rewinding force of the leaf spring 11 is prevented by the ratchet mechanism.

When the starting ratchet 6 is pushed from this accumulated state to release the locking of the starting ratchet wheel 5, the shaft 12 rotates in the direction in which the leaf spring 11 is entangled, and engages with the protruding portion 35 of the starter ratchet wheel 4. Rotating magnetic pole assembly for power generation 3
Of the crankshaft 2 by the leaf spring 11
And the engine 1 starts.

At this time, the elastic driving force of the leaf spring 11 of the storage box 10 is
If the power is supplied by the reduction gears 23, 21 and the planetary gear 16, power for starting the engine can be obtained. After the engine 1 is started, the contact between the starter pawl 3-4 and the starter ratchet wheel 4 is released by centrifugal force.

(2) An outline of the invention of Japanese Utility Model Application No. 63-87945 will be described with reference to FIG.

In FIG. 16, the overall configuration of the spiral spring type starting device is shown in FIG.
Same as Figure 15.

During normal engine operation, the manual crank 102 is not inserted, and the gear 101 with a shaft runs idle.

However, when starting has failed and the spiral spring 11 is to be re-engaged, the manual crank 102 is attached to the shafted gear 101 serving as a reduction gear.
To rotate the spring energy storage box 10 to accumulate energy in the spiral spring 11.

At the time of starting, the spiral spring is operated by operating the starting ratchet 6.
By rotating the starter shaft 12 with the energy stored in 11,
Engine 1 is cranked to start.

[Problems to be solved by the invention]

In the spiral spring type starting device, when the starting is failed, an external power source or human power is required as a power source for storing energy in the energy storage spring, and it is not necessarily sufficient as a human-power saving type starting device. (1) Multiple starting can be performed, (2) Waiting time until restarting is as short as possible, and (3) Auxiliary equipment for starting is extremely lightweight including the weight of the power supply unit. There was still room for improvement.

In the conventional method, when the ratchet gear is released by the ratchet lever and the energy stored in the spiral spring is released to the engine, the spiral spring is in a forceless state. It was necessary to manually wind the spiral spring, and there were inconveniences such as requiring time and labor when starting the engine.

[Means for solving the problem]

(1) During operation of the engine, power is stored in a storage battery using a generator attached to the engine.

In particular, since a spark ignition engine such as a gasoline engine has a permanent generator for an ignition power supply for supplying electric power to a spark plug, power is stored in a storage battery using the generator for an ignition power supply.

(2) The DC motor is driven by the power of the storage battery to store power in the spiral spring, and the power can be continuously stored in the spiral spring while the power of the storage battery is present, so that the engine can be cranked.

(3) Simply driving a DC motor with a storage battery and cranking the engine through a speed reducer with a reduction ratio of about 1/15 results in a conventional cell starter method, and the motor has a large current capacity. The weight of the battery is heavy and the portability is poor.

Therefore, the reduction ratio from the motor output shaft to the driving of the spring energy storage chamber that applies twist to the spiral spring is set to a high reduction ratio of about 1/250 to 1/300.

Alternatively, to express the high reduction ratio of the above (3) in a very small space, Is used.

(4) By driving the spring energy storage chamber at a high reduction ratio, the time required for the energy storage requires a time determined by the torque capacity of the motor. Therefore, the size and weight of the device can be reduced by downsizing the motor and battery. By using the above-mentioned mysterious gear device, an extremely high reduction ratio can be realized in a minimum space.

(5) An automatic winding control device for the spiral spring is provided so that the contact of the ratchet lever is grounded when the spiral spring is released, the control circuit is activated, and the motor for winding the spiral spring is driven by a signal when the ratchet lever is returned to its original position. Is activated to stop the energization of the motor by detecting the winding of the timer or the mainspring, so that the spiral spring winding mechanism operates simultaneously with the release of the spiral spring.

[Action]

(1) By using transposition gears, it is possible to engage three gears with the same distance and the same number of teeth with the same shaft distance, thereby obtaining a reduction gear having a large reduction ratio of about 1/200 in a small space. Can be

(2) By setting the reduction ratio to 1/250 to 1/300, the motor capacity and the storage battery capacity are reduced to 1/10, 1/6 or less of the cell starter system, respectively. Does not lose practicality.

(3) Since the battery is charged by the ignition power generator during the operation of the engine, an energy source for starting the engine multiple times can be secured, and at the same time, silent energy generated in the ignition circuit can be absorbed.

(4) Since the start operation and the energy storage spring drive motor are controlled in conjunction with each other, the energy accumulation operation of the energy accumulation spring is automatically performed by one start operation, and the waiting time at the time of restart is reduced.

〔Example〕

1 to 10, 1 is an engine body, 2 is a crankshaft, 3 is a magnet wheel (or rotating magnetic pole) assembly, 4 is a starter ratchet wheel, 5 is a starting ratchet wheel, 6 is a starting ratchet, 7 is the axis,
9 is a ball bearing, 10 is a spring energy storage chamber, 10-1 is a ratchet tooth of the spring energy storage chamber 10, 10-2 is an external gear of the spring energy storage chamber 10, 11 is an energy storage spring, 12 is a starter shaft, 13 Is a bearing (slide or ball),
20 is a bearing (sliding or ball), 14-1 is a ratchet claw, 14
-3 is a shaft, 14-4 is a spring, 14-5 is a shaft, 14-6 is a shaft, 25
Is a DC motor, 26 is a frame A, 27 is a frame B, 28 is a spacer, 29 is a generator coil, 30 is a generator, 40 is a high reduction ratio reducer, 40-1 is a sun gear, 40-2 is a planetary gear , 40-3
Is a movable internal gear, 40-4 is a fixed internal gear, 40-5 is a planetary gear fixed frame A, 40-6 is a planetary gear fixed frame B, 40-7 is a planetary gear shaft, 40-8 is a fixed pin, 40-9 is the internal gear of the movable internal gear, 40-10 is the external gear of the movable internal gear,
40-11 are the internal teeth of the fixed internal gear, 50 is the spark plug, 60
Is an ignition control device, 70 is an engine stop switch, 80 is a switch, 90 is a storage battery, 100 is a motor control device, 120 is a charging circuit, 130 is a switch circuit, 140 is a control circuit, 121 and 123 are diodes, 122 and 136 are capacitors, 131, 133 and 127 are The transistors 134, 135 and 137 are resistors.

1 to 7 are explanatory diagrams of the main parts in structure, FIG. 8 is a control circuit diagram, and FIGS. 9 to 10 are operation explanatory diagrams.

Hereinafter, the contents of the present invention will be described based on the above drawings. However, the elements having the same functions as those in the related art are denoted by the same reference numerals, and description thereof is omitted in principle.

The component parts that make up the device are frame A26, frame B27
The protrusion or spacer 28 integrated with the frame A26
Is attached to the engine 1.

Inside the frame B27, a speed reducer 40, a spring energy storage room 10,
Main parts for storing power such as shaft 12, storing spring 11, etc. are provided,
The grease supplied for lubrication is not scattered outside.

Inside the frame A26, a main part for transmitting the strain energy (or mechanical energy) accumulated in the energy storage spring 11 to the crankshaft 2 and a generator 30 which is a power source for ignition of the engine 1 are provided.
, An ignition control device 60, a motor 25 for driving the power storage chamber 10, a control device 100 for the motor 25, and a storage battery 124.

As shown in FIG. 4 (b), a cross section of a main part of the speed reducer 40 is
A sun gear 40-1 fixed to the output shaft of the motor 25, three planetary gears 40-2 equally arranged on the circumference in three minutes, and a mesh with the planetary gear 40-2 in inscribed engagement with the planetary gear 40-2. The internal gear 40-3 (the number of teeth Z ₃ ) and the fixed internal gear 40-4 (the number of teeth)
Z ₄ ) to fix the relative positions of the three planetary gears,
Planetary gear fixed frame A40-5, planetary gear fixed frame B
40-6, a planetary gear shaft 40-7, and a fixed pin 40-8,
The planetary gear 40-2 is rotatable around the planetary gear shaft 40-7, and the fixed internal gear 40-4 is fixed to a support frame such as the frame B27 and does not rotate.

Now, the number of teeth of the sun gear 40-1 is Z ₁ , the number of teeth of the planetary gear 40-2 is Z ₂ , the rotation speed of the sun gear 40-1 is ω, and the movable internal gear 40 is
Assuming that the rotation speed of −3 is Ω and the reduction ratio is m, _{Z 4 = Z 3 +3 ... (} 2) ' Is obtained.

If Z ₂ , Z ₃ , and Z ₄ gears are designed as shift gears with m ≒ 200, a gear with Z ₂ teeth can be meshed with Z ₃ and Z ₄ having different numbers of teeth. This is a high reduction ratio reducer called a mysterious gear.

Next, the high reduction ratio reducer will be described with reference to the model of FIG.

FIG. 5 (b) is the model of FIG. 4, and FIG. 5 (a)
Shows the general case of FIG. 5 (b). FIG. 5B shows a special case in which the gears c and e have the same number of teeth and mesh with the gears d and f having different numbers of teeth.

First, for the general case of FIG. 5A, the rotation angle of the gear d when the gear b is rotated is determined.

 First, consider a case where the gear f can rotate freely.

Then, Table 1 shows the rotation angles of the respective gears. -Sign means inversion.

Thus, the rotation angle of each gear is represented by θ, and the respective suffixes are given as follows.

θb = xtd (3) Here, when the gear f is fixed, Substituting (1) (2) (7) into (3) (5) Here, the module of all the gears is set to M, and the number of teeth Z of the gear is determined as follows.

A gear b ... Z ₁ gear c ... Z ₂ gear d ... Z ₃ gears e ... Z ₂ 'gear f ... Z ₄ this time _{2rb = MZ 1 2rc = MZ 2} 2rd = MZ 3 2re = MZ 2' 2rf = MZ 4 Because Then, as shown in FIG. 5 (b), if Z ₂ = Z ₂ ′, Get.

However, since Z ₃ ≠ Z ₄ , each gear does not generally mesh unless it is a shift gear.

Further, assuming that the number of carriers a or the number of planetary gears c or e is N, Z ₁ , Z ₃ , and Z ₄ need to be divisible by N.

And reduction ratio Maximum time since increases when close to 1, when _{N = 3 Z 4 = Z 3} +3 ... (11) Z 3 = 3 * K, K is a natural number ... (12) Z ₃ is to satisfy the meaning of the multiples of 3 Is obtained.

From this time (10) (11) As a result, if Z ₁ is assumed, Z ₁ and Z ₃ that approximately satisfy (13) can be obtained.

However, Z ₁ = 3 * L, L is a natural number ... (14) Z ₁ means a multiple of 3. At this time, Z ₂ is selected to satisfy the following relation If Z ₁ , Z ₂ , Z ₃ , and Z ₄ are determined, the transposition coefficient given to each gear may be determined according to the theory of the transposition gear, and the size of the device is reduced by making the module M as small as possible in consideration of strength. Can be

By the above procedure, a reduction gear having a large reduction ratio of about m ≒ 200 can be obtained in a very small size.

Comparing the power required for starting the engine when using such a high reduction ratio reducer with a conventional cell starter, for example, taking a single cylinder engine with a displacement of 24 cc as an example,
Table 2 below.

That is, the entire apparatus is greatly reduced in size.

 Next, the configuration of the entire apparatus will be described.

The frame A26 is provided with a storage spring driving motor 25, and its output shaft is a sun gear of a high reduction ratio reducer 40.
The fixed internal gear 40-4 of the high reduction ratio reduction gear 40 is fixed to the center of the frame 40-1.

A shaft 12 is provided on the axis of the crankshaft 2 of the engine 1, one end of which is supported by a bearing 9 provided on a side wall of the frame A 26, and the other end of which has a bearing 13 provided on a side surface of a spring energy storage chamber 10. The spring energy storage chamber 10 is supported via the bearing 20.

The pawl 35 of the starter ratchet wheel 4 is engaged with a pawl 3-4 provided on the end face of the magnet wheel assembly 3 provided on the end of the crankshaft 2 of the engine 1 so as to be able to rotate in one direction.

As shown in FIG. 2, a number of protrusions are provided on the outer periphery of the starting ratchet wheel 5, and the starting ratchet 6
Are engaged so that rotation can be stopped at any position.

The starting ratchet 6 is rotatably supported by a shaft 7 fixed to the frame A26, receives a force constantly contacting the outer edge of the ratchet wheel 5 by a spring 6-1 and forcibly operates the ratchet lever 6 by an external force. At other times, the ratchet wheel 5 is prevented from rotating.

The fact that the ratchet lever 6 is displaced by an external force to release the detent of the ratchet wheel 5 is detected by the switch 80 having the contact 80a.

The spring energy storage chamber 10 is movable with respect to the shaft 12 by the bearing 13 and rotatable with respect to the frame B27 by the bearing 20. On the other hand, a gear 10-2 is provided on the outer periphery of the energy storage spring chamber 10, and the reduction gear is engaged with the external teeth 40-10 provided on the outer periphery of the movable internal gear 40-3 of the high reduction ratio reduction gear 40. Make up the system.

A storage spring 11 is provided inside the spring storage chamber 10 so as to surround the shaft 12, and both ends of the storage spring 11 are fixed respectively as shown in FIG.

In addition, the ratchet teeth 10 of the internal teeth or the external teeth are stored in the storage spring chamber 10.
-1 is provided, and a ratchet pawl 14-1 provided on the frame B27 serves as a detent mechanism that can rotate in one direction.

The starting ratchet wheel 5 is provided on the frame A26 side of the shaft 12.
Is fixed, and the starting ratchet wheel 5 has a sixth
As shown in the figure, a starter ratchet wheel 4 having a claw 35 is integrally provided.

The rotation torque of the motor 25 passes through the high reduction ratio reduction gear 40,
The spring storage chamber 10 is rotated.

On the other hand, the shaft 12 has a ratchet 6 and a ratchet wheel 5
Therefore, the energy storing spring 11 is wound around the shaft 12. When the predetermined winding is performed, the motor 25
Rotation stops, but the wrapped state (accumulated state) is maintained by the ratchet wheel 10-1 and ratchet pawl 14-1.
It is done in.

In this state, when a force is applied to the starting ratchet 6 to freely rotate the ratchet wheel 5, the energy stored in the spiral spring 11 instantaneously rotates the shaft 12, and the starter ratchet wheel 4 becomes 3, the crankshaft 2 is rotated to start the engine 1.

When the engine starts, the claw 3 of the magnet wheel 3
4 is disengaged from the claw 35 of the starter ratchet 4,
It is separated from the 12 drive trains.

 The above is the mechanical basic operation.

FIG. 8 shows a power supply and a control circuit of the motor 25. 30 is a magnet wheel (or rotating magnetic pole) assembly 3 and a coil 29
A permanent magnet rotary generator consisting of: an ignition control device 60, a spark plug 50, an engine stop switch 70,
80 is a switch for detecting the operation of the starting ratchet 6;
a is a contact, 90 is a storage battery, and 100 is a control device for driving the motor 25. 29-1 is the primary coil of the stator coil 29 of the generator 30, 29-2 is also the secondary coil. The primary and secondary coils constitute a single-turn transformer, and the common line is grounded to the engine body. .

Generator 30 and fire point control device 60 and spark plug
The portion composed of the switch 50 and the switch 70 is a conventional technology, and the description is omitted.

 The motor control device 100 will be described.

The control device 100 includes a charging circuit 120, a switch circuit 130, and a control circuit 140, and uses the contact 80a of the switch 80 as an input signal to drive the motor 25.

The charging circuit 120 is a generator 3 that operates by being directly connected to the engine 1.
It performs a charging operation with 0 power. Rectifier diode 121,
Smoothing capacitor 122, backflow prevention diode 123, storage battery 90
It consists of.

In the initial state, the switch circuit 130 has the transistor 131
Since it is OFF, the control circuit 140 is not energized and the motor
25 is stopped.

Next, when the ratchet lever 6 is pressed, the spiral spring 11 is released, and the engine 1 is started. At the same time, the ratchet lever 6 presses the switch 80, and the contact 80a is grounded.
Since the contact 80a is connected to the base of the PNP transistor 131 via the backflow prevention diode 139, the base voltage of the transistor 131 falls, the transistor 131 turns on, and the control circuit 140 is energized. This makes it an NPN transistor
A voltage that is divided by the resistors 134 and 135 is applied to the base of the transistor 133, the transistor 133 is turned on, the base voltage of the transistor 131 is lowered via the resistor 132, and the ON state of the transistor 131 is maintained. Therefore, even if the ratchet lever 6 is returned to the original position and the contact 80a is opened, the control circuit 140 is energized.

The control circuit 140 controls the energization timing of the motor 25 for winding up the accumulation spring 11, and there are two types, a timer type and a motor current detection type, and either type may be used.

Energization start to the motor 25 after energization start a certain time to the control circuit 140, i.e., after the engine start required time T ₁ times, either ON timer T _2, or contact of the return signal Rachietsutoreba 6, i.e. the switch 80 When the contact 80a is opened, a rising signal which becomes L through the diode 138 and becomes H through the pull-up resistor 144 is used. T ie by the timer T ₁ of the control circuit 140 is operated turned ON at the same time
_{After one} hour, or when the open signal of the contact 80a, that is, L of the signal (a)
→ The timer T ₂ is operated by the H signal, and after the elapse of the time T ₂ , the transistor 127 is turned on and the motor 25 is energized. Energy storage spring 1
1 of the winding up time T ₂ set in the control circuit 140 internal timer circuit to L of the transistor 127 wound becomes up time turned OFF simultaneously stop signal (B) from H. The stop signal (b) is transmitted to the base of the transistor 133 via the coupling capacitor 136, lowering the base potential of the transistor 133 and turning off the transistor 133. Transistor
When 133 turns off, the base potential of the transistor 131 rises, turns off, and the control circuit 140 enters a power outage state. Accordingly, the transistor 127 is also turned off, and the power supply to the motor 25 is stopped.

The capacitor 141 shown in FIG. 8 is for noise prevention and can be omitted.

In the case of the winding detection method, the motor is started by turning on the transistor 127 and energizing the motor 25 to wind the mainspring 11 in the same manner as in the timer method, and when the mainspring 11 is wound, the motor current increases. Utilizing this, a stop signal (b) is output by the motor current detecting means, and the motor 25 is stopped in the same manner as in the timer method.

An indicator or a buzzer may be provided in parallel with the motor 25 to inform the user that the motor 25 is operating.

The operation timing of the main part of the control operation described above is changed to ninth.
Shown in the figure.

Compared to the cell starter method shown by the dotted line, the rise characteristics of the crankshaft rotation speed at the start in the figure are smaller than the minimum rotation speed required for cranking to reduce the motor capacity in the case of the cell starter. The direction of the miniaturization can be understood by the instantaneous power effect of the formula.

The voltage generated in the primary coil during the operation of the engine is as shown in FIG. 10, and has a distorted waveform as shown. By setting this time the Batsuteri voltage E generated voltage (+) side than Ya potentialゝto low, it is possible to utilize energy E ₁ of the shaded area is not used to ignite the charge of Batsuteri 90.

If a square hole communicating with the outside is provided in the boss of the spring energy storage chamber 10 in case of emergency, it is also possible to manually store energy.

Next, an automatic winding control device will be described with reference to FIGS. 11 to 14. FIG.

The automatic winding control device 210 is configured by the charging circuit 220, the switch circuit 230, and the control circuit 240 as shown in FIG.
The contact 80a of the starting ratchet 6 is used as an input signal and the motor 25
Drive.

The charging circuit 220 is a generator 2 that operates in direct connection with the engine 1
Rectifier diode 221, smoothing capacitor, charging from 9
222, a backflow prevention diode 223, and a storage battery 224. The charging circuit 220 can be replaced by a dry cell or an external power supply, for example, a battery of an automobile.

In the initial state, the switch circuit 230
Since it is OFF, the control circuit 240 is not energized and the motor
25 is stopped.

Next, when the starting ratchet 6 is pressed, the spiral spring 11 releases the force,
At the same time when the engine 1 is started, the contact 80a of the starting ratchet 6 is grounded via the backflow prevention diode 239.
Since the contact 80a is connected to the base of the PNP transistor 231, the transistor 231 is turned ON and the control circuit 240 is energized. As a result, a voltage obtained by dividing the base voltage of the NPN transistor 233 by the resistors 234 and 235 to be equal to or higher than the ON voltage is applied, the transistor 233 is turned on, the base voltage of the transistor 231 is reduced via the resistor 232, Since the ON state is maintained, even if the starting ratchet 6 is returned to the original state and the contact 80a is opened, the control circuit 240
Is turned on.

The control circuit 240 controls the energization of the spiral spring winding motor 25, and there are two types, a timer system in FIG. 13 and a spiral spring winding detection system in FIG. The energization of the motor 25 may be started at the same time as the energization of the control circuit 240. However, in this embodiment, the most efficient return signal of the contact of the starting ratchet 6, that is, the signal that the contact 80a is closed → open (a) ) Was used.

In the case of the timer system, the transistor 22
7 is turned on, and the motor 25 is energized. The winding time of the spiral spring 11 is set by the timer 241. When the winding time comes, the transistor 227 is turned off and the stop signal (b) is changed from H to L at the same time. The stop signal is transmitted to the base of the transistor 233 via the coupling capacitor 236, lowering the base potential of the transistor 233, and the transistor 233 is turned off. When the transistor 233 is turned off, the base potential of the transistor 231 rises and is turned off, and the control circuit 240 enters a power outage state. Therefore, the transistor 227 is also turned off, and the motor 25
The energization to is stopped.

In the case of the winding detection method, the transistor 227 is turned on in response to a signal from closing to opening of the contact 80a, and the control circuit 242 and the motor 25 are energized to wind the spiral spring 11. When the spiral spring 11 is wound, the winding detecting device 243 is provided. The stop signal (b) is changed from H to L based on the current input from (c), and the motor 25 is stopped in the same manner as in the timer method.

In this manner, the spiral spring 11 is automatically wound up, and the starter is always started, so that the time required for winding up the spiral spring becomes unnecessary.

〔The invention's effect〕

The present invention relates to a general-purpose gasoline engine having a magnetic pole rotating type generator and a flash point timing control circuit, a charging circuit provided in parallel with the ignition timing control circuit, a storage battery for storing power supplied from the charging circuit, and a storage battery. A DC motor driven by electric power, a control device for controlling operation stop of the DC motor, a high reduction ratio reduction mechanism for transmitting the power of the DC motor, and a spiral for storing mechanical energy by receiving a rotational force from the reduction mechanism The provision of the spring type energy storage device and the one-way power transmission element for transmitting the energy stored in the spiral spring to the crankshaft has the following effects.

(1) Since the battery has a storage battery that uses the + power of the generator for ignition power, which has not been used in the past, for charging energy during the operation of the engine, it is possible to store the power in the spiral spring a plurality of times.

Therefore, even when the startability is deteriorated in winter or the like, the engine can be cranked a plurality of times using the restoring force of the spiral spring without using human power, so that there is no fear that the engine cannot be started.

(2) By using a mysterious gear for the reduction gear, it is easy to make the total reduction ratio a high reduction ratio of about 1/250 to 1/300.

Therefore, the capacity of the motor used for energy storage is reduced to about 1/10 (50W
→ 5W), battery capacity can be reduced to 1/6 or less (1200mAH → 180mAH), and extremely light weight can be achieved.

(3) Immediately after the engine start operation, the motor control is performed so that the storage spring is automatically engaged, so that even if the start fails, the waiting time can be reduced, and the next start only requires pulling the ratchet lever. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a main part of an embodiment of the present invention, FIG. 2 is a cross-sectional view of FIG. 1 along AA, FIG. 3 is a cross-sectional view of FIG. 4th
1A and 1B are cross-sectional views of a main part of a high reduction ratio reduction gear, FIG. 1A is a front view and FIG. 1B is a side view. 5 (a) and 5 (b) are model diagrams of the high reduction ratio reducer, FIG. 6 is a cross-sectional view taken along line CC of FIG. 1, FIG. 7 is a cross-sectional view taken along line DD of FIG. FIG. 9 is a power supply and control circuit, FIG. 9 is an operation timing diagram, FIG. 10 is a voltage waveform generated in a primary coil of a generator, FIG. 11 is a configuration diagram of a motor-type spiral spring starter, and FIG.
Fig. 13 is a block diagram of a control device according to the present invention. Fig. 13 is a block diagram of a motor control unit of a timer-type control device. Fig. 14 is a block diagram of a motor control unit with a winding detection device. FIG. 16 is a cross-sectional view of a main part of another conventional apparatus. 1 ... Engine body 4 ... Starter ratchet wheel 5 ... Starting ratchet wheel 6 ... Starting ratchet 10, 10 ... Spring energy storage chamber 11 ... Energy storage spring, 12 ... Starter shaft 25 ... DC motor, 26 Frame A 27 Frame B, 30 Generator 40 High reduction ratio reducer

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Kanji Isomichi, Inventor, Nagoya Research Laboratories, Nagoya-shi, Aichi, Nagoya-shi U) Japanese Utility Model Showa 56-65172 (JP, U) Japanese Utility Model Showa 54-93627 (JP, U)

Claims (3)

(57) [Claims] 1. A storage battery, a DC motor driven by electric power of the storage battery, a control device for controlling stop of operation of the DC motor, a high reduction ratio reduction mechanism for transmitting power of the DC motor, In a spiral spring type starting device including a spiral spring type energy storage device driven by a reduction ratio reduction mechanism and a power transmission device that unilaterally transmits the force of the energy storage device to a crankshaft, another spiral spring type starting device parallel to the crankshaft is provided. A first stage planetary gear type reduction gear and a DC motor for driving the planetary gear reduction gear are provided on the axis, and a drive gear provided on an output shaft of the planetary gear reduction gear and a spring energy storage chamber of the energy storage device are provided. A second-stage speed reducer is constituted by a driven gear integrally provided on the outer periphery, and the spiral spring type energy storage device can be driven by a DC motor using the storage battery as a power source. Spiral spring of general-purpose gasoline engine Starting device. 2. The planetary gear type speed reducer according to claim 1, wherein one of two internal gears meshing simultaneously with the sun gear is fixed, and the other internal gear is provided with a drivable gear on the outer periphery. Item 4. A spiral spring type starting device for a general-purpose gasoline engine according to Item 1. 3. The spiral spring type energy storage device includes a case provided on the crankshaft driving side of the engine body and a drive shaft provided coaxially with the crankshaft, one of which is supported by the case via a bearing; And a case that has a bearing at the axial position of the crankshaft and supports the spring energy storage chamber via a shaft portion provided on a side plate of the spring energy storage chamber with a bearing of the case. The other end of the drive shaft is rotatably supported by a bearing of a hole provided in the side plate of the above, and a gear is provided outside the side plate of the spring energy storage chamber, so that the planetary gear type reduction device can be driven. 3. A spiral spring type starting device for a general-purpose gasoline engine according to 2.