JP3055179B2 - Starter starter and accessory drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single motor for driving a starter switch used when starting an engine of an internal twist engine such as an automobile and an auxiliary machine used unexpectedly when starting the engine. The present invention relates to a starter starter / auxiliary device driving device.

[0002]

2. Description of the Related Art Conventionally, there have been considered a solenoid type and a motor type as a method of driving a switch for starting a starter motor, and the motor type is significantly smaller in size by increasing the operation time than the solenoid type. There is an advantage that the weight and weight can be reduced. On the other hand, as an in-vehicle auxiliary device, a device driven by a motor such as a wiper is known.

[0003]

However, in the above-described motor-type switch drive system, the switch drive motor is used only instantaneously when the engine is started.
There is a problem that the utilization rate is extremely poor. In general, when starting the engine, a large current is supplied to the starter motor, so that no current flows to the auxiliary device driving motor, and the auxiliary device driving motor is not used at the time of starting the engine.

Accordingly, an object of the present invention is to improve the utilization factor by operating the switch driving motor and the auxiliary device driving motor with one motor.

[0005]

In order to achieve the above object, the present invention provides a fixed contact (131, 13) provided between a power supply (5) and a first motor (7) for starting an engine.
2) and a pinion provided at one end with a movable contact (120) that is in contact with the fixed contact and energizes the starter motor from the power supply and is provided so as to be movable in the axial direction, and to which rotation of the starter motor is transmitted. A shaft (110) for moving the (160) to the ring gear (8) side of the internal combustion engine , and a first rotating body (6) rotationally driven by a second motor (3).
10) and a second rotating body (620) coupled to the first rotating body and rotationally driven to move the shaft in the axial direction.
A first rotator; and a third rotator (9) connected to the first rotator when the second rotator is apart from the first rotator and driven to rotate the auxiliary machine (2). The configuration is as follows.

[0006]

When the engine is started, the first rotating body and the second rotating body are connected, and the rotation of the second motor is transmitted to the second rotating body. The shaft is driven by the rotation of the second rotating body,
The pinion is meshed with the ring gear of the internal combustion engine , and the fixed contact and the movable contact come into contact with each other to drive the first motor to start the internal combustion engine.

When the accessory is driven other than when the engine is started, the first rotating body and the third rotating body are connected, and the rotation of the second motor is transmitted to the third rotating body to drive the accessory.

[0008]

Therefore, when an auxiliary equipment driving motor is used as the second motor, the switch driving motor can be omitted, and the auxiliary equipment driving motor is used even when the engine is started. Can be improved. Also,
When a switch drive motor is used as the second motor, the auxiliary drive motor can be omitted, and the switch drive motor is used other than when the engine is started.
The utilization rate can be improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a starter starting and accessory driving device according to the present invention will be described with reference to the embodiments shown in FIGS. FIG.
And FIG. 2 is an overall configuration diagram showing a first embodiment of the device of the present invention. The entire configuration diagram of the first embodiment is obtained by connecting the II line in FIG. 1 to the II line in FIG. It shows.

Reference numeral 1 denotes a switch device, which mainly includes a rack 110 forming a shaft, a movable contact 120, and a fixed contact 13.
1, 132, a lever 140, a clutch 150, a pinion 160, and an eighth gear 170. Rack 11
0 is disposed so as to be movable in the axial direction.
The other end is provided with a rectangular movable contact 120 at the other end thereof via an insulator 121. The movable contact 120 is provided movably between a flange 112 provided at an end of the rack 110 and a step 113. Reference numeral 122 denotes a contact spring, which is arranged between the insulator 121 and the step 113, and presses the insulator 121 toward the flange 112 of the rack 110. The rack 110 has an eighth gear 170.
Are always engaged.

The fixed contacts 131 and 132 are fixed to a contact cover 133 formed of resin. One fixed contact 131 is connected to the battery 5 and the other fixed contact 132 is connected to the starter motor. Reference numeral 134 denotes a return spring, which is a flange portion 1 of the rack 110.
12 and the contact cover 133, the movable contact 1
The rack 110 is pressed in a direction in which the fixed contacts 20 and the fixed contacts 131 and 132 are opened.

The lever 140 has one end engaged with the hook portion 111 of the rack 110 and the other end engaged with the clutch 150, and is disposed rotatably about a fulcrum 141. The clutch 150 is a one-way clutch having a stepped cylinder shape, which is connected to the output shaft 71 of the starter motor 7 serving as a first motor by using a helical spline. The pinion 160 has a starter motor 7
Is rotatably and slidably provided with respect to the output shaft 71 of the internal combustion engine, and meshes with the ring gear 8 of the internal combustion engine.

Reference numeral 180 denotes a drive spring. Reference numeral 3 denotes a second motor, which in the first embodiment is a motor for driving the wiper 2 corresponding to an auxiliary machine (hereinafter, referred to as "wiper driving motor"). The wiper driving motor 3 is connected to the battery 5 via a wiper switch 4 and is connected to a battery 5 via a suction coil 630 of an electromagnetic clutch 6 and a key switch 11 which will be described later.
Connected to Further, the wiper driving motor 3
A first gear 32 is fixed to the tip of the output shaft 31.

Reference numeral 6 denotes an electromagnetic clutch, which is mainly composed of a movable core 610 forming a first rotating body, and a fixed core 6 forming a second rotating body.
20 and a suction coil 630. Movable iron core 610
The first shaft portion 611, a second shaft portion 612 having a larger diameter dimension with respect to the first shaft portion 611 and provided coaxially with the first shaft portion 611, and an outer periphery of the second shaft portion 612. And a flange portion 613 provided. Second shaft 612
The second gear 614 is formed on the outer peripheral portion of the motor 3, and the first gear 32 of the motor 3 is always meshed. The collar 613 is provided with a third gear 615 on the outer periphery thereof and a crown-shaped fourth gear 616 along the outer periphery.

The fixed core 620 has two cylindrical portions having different diameters, and has a cylindrical support portion 621 extending in the axial direction along the inner wall of the small-diameter cylindrical portion 626. The fixed iron core 620 is rotatably supported by a shaft 625 provided at the end of the small-diameter cylindrical cylinder.
21 supports the second shaft 612 of the movable iron core 610 rotatably and slidably. In the space between the outer circumference of the support portion 621 and the inner circumference of the large-diameter cylinder of the fixed iron core 620,
At the same time, on the outer periphery of the support portion 621, a suction coil 630 is wound via an insulator 631. The support 62
A dissociation spring 623 is provided in 1 and presses the movable iron core 610 toward the motor 3.

The shaft 625 and the eighth gear 170 of the switch device 1 are connected by a first cable 171, and the rotation of the fixed iron core 620 causes the rotation of the eighth gear 1.
It is conveyed to 70. The large-diameter cylindrical portion 627 has, at its end, a crown-shaped fifth gear 616 having the same shape as the fourth gear 616 of the movable iron core 610 and meshing with the fourth gear 616.
Gear 622 is provided.

Reference numeral 9 denotes a seventh gear forming a third rotating body,
The shaft 91 is rotatably supported and connected to the wiper driving cam 22 via the second cable 21. The wiper driving cam 22 rotates about a shaft 23, and a connecting portion 25 near the outer periphery of the cam 22 rotates the shaft 2.
4 is connected to one end. Further, the other end of the shaft 24 is connected to the wiper 2, and the wiper 2 is driven by rotation of the wiper driving cam 22 as is well known.

Next, the operation of the starter starter / auxiliary equipment driving device having the structure shown in FIGS. 1 and 2 will be described. First, when the internal combustion engine is started, when the key switch 11 is closed,
A current from the battery 5 flows to the suction coil 630 and the wiper driving motor 3. The attraction coil 630 generates a magnetic flux when energized, and attracts the movable iron core 610 to the fixed iron core 620 side. This suction force is greater than the pressing force of the dissociation spring 623, the third gear 615 of the movable core 610 is disengaged from the seventh gear, and the fourth gear 616 is connected to the fifth gear 622 of the fixed iron core. Mesh with each other.

On the other hand, the wiper driving motor 3 is energized and driven to rotate. The rotation of the wiper driving motor 3 is transmitted from the first gear 32 to the second gear 614, and the movable iron core 610 is rotationally driven. The fourth gear 616 of the movable iron core 610 and the fifth gear 622 of the fixed iron core 620
Are fixed, the fixed core 620 is driven to rotate, and the rotation of the fixed core 620 is controlled by the first cable 171.
And the rack 110 is moved to the fixed contacts 131 and 132 side.

Then, as the rack 110 moves,
One end of the lever 140 is pulled by the hook portion 111. The lever 140 rotates around the fulcrum 141,
The pinion 160 is moved toward the ring gear 8 together with the one-way clutch 150. The pinion 160 pushed forward (to the left in the figure) meshes with the ring gear 8 engaged with an internal combustion engine (not shown).

When the pinion 160 further advances after the contact, the movable contact 120 fixed to the rack 110 contacts the fixed contacts 131 and 132, closes the circuit, and the current from the battery 5 is reduced. The current flows to the starter motor 7 via the fixed contact 131, the movable contact 120, and the fixed contact 132, and the output shaft 71 rotates. The rotation of the output shaft 71 is transmitted to the pinion 160 via the clutch 150, and the pinion 150 rotates the ring gear 8,
Start the internal combustion engine.

When the starter switch 9 is opened after starting the internal combustion engine, supply of current from the battery 5 to the suction coil 630 and the wiper driving motor 3 is stopped.
The suction force of the suction coil 630 is attenuated, and the dissociation spring 6
23, the movable core 610 is separated from the fixed core 620, and the rotating shaft 3 of the wiper driving motor 3 is rotated.
1 is reduced.

Then, the rack 110 is pushed back by the pressing force of the return spring 134, the movable contact 120 is separated from the fixed contacts 131 and 132, the circuit is opened, and the current from the battery 5 is no longer supplied to the starter motor 7, so that the drive is started. The force decays. Then, the pinion 160 separates from the ring gear 8 and returns to the original position. Next, when the wiper is driven, the wiper switch 4 is closed, and the wiper drive motor 3 is energized and driven to rotate. At this time, the first gear 32 of the wiper drive motor 3 and the second gear 614 of the movable iron core 610 of the electromagnetic clutch 6 are engaged, and the third gear 615 and the seventh gear 9 of the movable iron core 610 are engaged. The rotation of the wiper driving motor 3 is transmitted to the seventh gear 9 via the movable iron core 610. The rotation of the seventh gear 9 causes the wiper driving cam 2 to rotate.
2 is driven, and the wiper 2 is driven.

As described above, the movable core 610 of the electromagnetic clutch 6 always rotates with the rotation of the wiper driving motor 3, and the rotation of the movable core 610 is normally transmitted to the seventh gear 9. When the switch 4 is closed, the wiper drive motor 3 is energized to drive the wiper. On the other hand, when the starter switch 11 is turned on, the electromagnetic clutch 6 is operated and the wiper drive motor 3 is driven. The rotation of the movable iron core 610 is transmitted to the fixed iron core 620, and the engine is driven by driving the switch device 1 and the starter motor 7 as described above.

Therefore, since the wiper driving motor 3 is used not only when the wiper is driven but also when the engine is started, the switch driving motor can be omitted, and the utilization rate is improved compared to the conventional wiper driving motor. be able to. Next, a second embodiment shown in FIG. 3 will be described. Whereas the wiper driving motor forms the second motor in the first embodiment, the switch driving motor forms the second motor in the second embodiment. still,
The reference numerals in FIG. 3 correspond to those in FIG. 1 showing the first embodiment.

In the configuration shown in FIG. 3, the switch driving motor 3 operates in the same manner as the wiper driving motor of the first embodiment, and the switch driving motor 3 is not limited to only when the engine is started. Since it is used at the time of driving, the wiper driving motor can be omitted, and the utilization factor can be greatly improved as compared with the conventional switch driving motor.

Next, a third embodiment shown in FIG. 4 will be described. In the third embodiment, the switch driving motor forms the second motor, as in the second embodiment. The reference numerals in FIG. 3 correspond to those in FIGS. 1, 2 and 3 showing the first and second embodiments. That is, as shown in FIG.
A sixth gear 624 is provided on the outer periphery of the large-diameter cylindrical portion 627 of the fixed iron core 620 of the electromagnetic clutch, and the sixth gear 624 and the rack 110 are always engaged.

Therefore, similarly to the above-described second embodiment, the wiper driving motor can be omitted, the utilization factor can be greatly improved as compared with the conventional switch driving motor, and the rack 110 can be used. Gear 170 and first cable 17 provided to move the
Since 1 can be omitted, the configuration can be simplified and the number of parts can be reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a part of a first embodiment of the device of the present invention.

FIG. 2 is a configuration diagram showing a part of the first embodiment of the device of the present invention.

FIG. 3 is a configuration diagram showing a second embodiment of the device of the present invention, in which the configuration on the accessory side is omitted.

FIG. 4 is a configuration diagram showing a third embodiment of the device of the present invention, in which the configuration on the starter side is omitted. DESCRIPTION OF SYMBOLS 1 Switch device 110 Rack which forms a shaft 120 Movable contact 131 Fixed contact 132 Fixed contact 160 Pinion 2 Wiper which forms auxiliary equipment 3 Second motor 5 Battery which forms power supply 610 Movable iron core of electromagnetic clutch which forms first rotating body 620 A fixed iron core of an electromagnetic clutch that forms two rotating bodies 7 A starter motor that forms a first motor 8 A ring gear 9 A seventh gear that forms a third rotating body

Continuation of front page (56) References JP-A-57-183526 (JP, A) JP-A-62-150073 (JP, A) JP-A-60-102469 (JP, U) JP-A-60-77254 (JP , U) Fully open sho 60-84735 (JP, U) Fully open sho 62-176452 (JP, U) Fully open sho 63-147562 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB Name) F02N 11/00

Claims (1)

(57) [Claims] A fixed contact (131, 13) provided between a power supply (5) and a first motor (7) for starting an engine.
2) and a pinion having, at one end, a movable contact (120) that contacts the fixed contact and energizes the starter motor from the power supply, and is provided so as to be movable in the axial direction, and to which rotation of the starter motor is transmitted. A shaft (110) for moving (160) to the ring gear (8) side of the twisting engine, a first rotating body (610) driven to rotate by a second motor (3), and connection with the first rotating body. A second rotating body (620) that is rotationally driven to move the shaft in the axial direction, and is connected to the first rotating body when the first rotating body and the second rotating body are separated from each other. And a third rotating body (9) that is driven to rotate and drives the accessory (2).