JPS5816903Y2 - Automatic transmission for automobiles - Google Patents

Description

[Detailed Description of the Invention] This invention relates to improvement of automatic transmissions for automobiles.

Conventionally, there have been devices of this type as shown in FIGS. 1 to 3.

In each figure, reference numeral 1 denotes a gear shift knob, and a bushing button 2 and a return spring 3 are built into the gear shifting knob 1. A gear shifting lever 4 is mounted on a slope 2a of the bushing button 2, and a gear shifting lever 4 is mounted in a lever pipe 5. The slope 4a of the lever 4 is pressed against the slope 2a of the bush button 2 by the return spring 6.

The lever pipe 5 is assembled so as to be rotatable about a shaft 7.

Further, a pin 8 is fastened to the lower end of the lever 4 with a nut 9 and is fitted into a notch hole 10a of the speed change lever in the plate 10.

The lever pipe 5 is connected to the control ring (not shown) of the oscillating transmission through the IJ link 11.

12 is an inhibitor switch (not shown), which is a control device provided in the swing transmission control rod section;
3 is a key switch connected in series with this switch, 14
This key switch and the above inhibitor switch 12
15 is a pantry for supplying power to the starter 14, which is connected in series.

Next, the operation of the conventional device will be explained.

When the driver starts the engine, move the gear shift lever 4 to rPj r.
When the button 2 of the knob 1 of the gear shift lever 4 is pressed in order to shift to the NJ range position, the slope 4a pressed against the slope 2a is pressed, and the lever 4 moves downward in FIG. 2 by deflecting the return spring 6.

Also, the pin 8 attached to the lever 4 with a NAND 9 can be set to the "P" range and "N" by the notch hole 10a in the plate 10.
Although it is fixed at each position of the range, as the lever 4 moves downward in Fig. 2, the pin 8 comes out of the notched hole 10a.
You can shift to any desired gear position.

Electrically, as shown in Fig. 3, the inhibitor switch 12 provided in the control terminal of the automatic transmission
J range 1. Since the contact closes at the rNj range position,
Voltage from the battery 15 is applied to the starter 14 via the key switch 13 and the inhibitor switch 12, so that the engine can be started.

Also, the inhibitor switch 12 is set when the gear shift lever 4 is set to "1".
"2".

In the case of the rDj rRJ range, the contacts are open, so power is not supplied to the starter 14 and the engine is started.

As mentioned above, conventional automatic transmissions are always in the "P" range.
If you start the engine in a range other than the rNJ range, the car will move forward or backward, so the starter 14 is equipped with a protection circuit to prevent the engine from starting in ranges other than the IP' and Nu ranges, so an uninformed person could simply start the key switch 13 If the engine does not start even if it is in the position, or if the engine suddenly stops at an intersection or while driving, manually move the gear shift lever 4 to
It is necessary to put it in J range / rNJ range position, especially until you get used to it, compared to a manual transmission vehicle "P" range / rN
It is very troublesome to find the J range position, and while the vehicle is coasting, entering the rPJ range position mechanically fixes the output shaft, which can lead to damage. Be sure to press "N" to start
This has disadvantages, such as the need to shift to a range position, which may be dangerous for amateurs to drive safely.

This invention was made to eliminate the drawbacks of the conventional ones as described above.When the key switch is turned to start in a range other than rPJ or "N", the gear shift lever is automatically set to the "IN" range position, making it safe. The purpose is to provide an excellent automatic transmission for automobiles that guarantees safe driving.

An embodiment of this invention will be described below with reference to FIGS. 4 to 6.

In each figure, 16 is a servo motor, which has coils F1 and F2 as shown in FIG. The winding direction is opposite to that of the coil F1, and the coil coils F1 and F1 are connected to the contact portions of the inhibitor switch 12, respectively.

17 is a small gear connected to the output shaft of the servo motor 16; 18 is a large gear meshed with the small gear; 19 is a drive lever connected to the large gear; its tip 19a;

19b is branched in two directions, and its tip 19a
, 19b are secured to the outer circumference of the lever pipe 5.

20 is the servo motor 16, small gear 17, and large gear 18.
This is a drive device composed of a drive lever 19.

Next, the operation of this embodiment will be explained.

First, when the gear shift lever 4 is set to the "N" or "P" range, the pantry 15 → key switch 1
3 → [F]■ contact of the inhibitor switch 12 → Current flows through the circuit of the starter 14, starting the engine.

In this case, each coil F1 of the servo motor 16. F2
Since the servo motor 16 is not energized, the servo motor 16 is inactive, and therefore a rotational force is applied to the drive lever 19 (.

Next, when the gear shift lever 4 is set to the rIJ r2J II)j range position, when the key switch 13 is turned on to start the engine, the battery 15 → key switch 13 → ■■ 0 contact contact of the inhibitor switch 12 - servo motor 16 Therefore, the servo motor 16 is rotationally driven, and the small gear 17 and the large gear 1 are rotated.
The lever pipe 5 is rotated to the "N" range side via the lever 8.

Therefore, the pin 8 rotates until it fits into the notch hole 10a of the rNJ range of the plate 10.

When the shift lever 4 is set to the rNJ range position, a closed circuit is formed from the battery 15 to the key switch 13 to the contact point of the inhibitor switch 12 to the starter 14, and the starter 14 starts the rotating engine.

Also, when the gear shift lever 4 is set to the "R" range position and the key switch 13 is turned on to start the engine, the battery 15 → the key switch 13 → the ■ contact of the inhibitor switch 12 → the coil F of the servo motor 16
2, the servo motor 16 rotates in the opposite direction to that when the gear shift lever 4 is set to the rlJ r2J rDJ range position, and the lever is rotated through the small gear 17, large gear 18 and lever pipe 5. 4 to the "N" range position.

Therefore, current flows through the starter 14 and the starter 15, driving the starter 14 and starting the engine.

In addition, in the above description, the gear shift lever 4 is rlj r2j rDJ"
R” range, each starter 1
The shift lever 4 is not limited to the "N" range, but can also be moved to the "P" range, which can also supply power to the starter 14. It is conceivable that the gear lever 4 should be rotated to engage the gear, but in this case, if the vehicle is coasting, shifting the gear shift lever 4 to the rPJ range would mean fixing the output shaft. , it is necessary to set the position to the "N" range while the vehicle is running, since this may cause a problem that may lead to damage to the connecting gear between the output shaft and the drive shaft.

As described above, according to the present invention, simply by operating the starter with the key switch, the gear shift lever is automatically placed in the "N" range position, and the engine is started after the shift lever is placed in the "N" range position. You don't have to look down to check the gear lever position even if you ride a tinker car (,
In addition, even if the vehicle suddenly stops while driving, the vehicle can be started in both directions by simply operating the key switch to the starter side in the same way as a vehicle with a manual transmission, allowing safe and easy operation.

[Brief explanation of drawings]

Figure 1 is a front view of the conventional device, and Figure 2 is the ■- of Figure 1.
N-line sectional view, Figure 3 is an electric circuit diagram showing the conventional device, Figure 4 is
5 is a side view showing an embodiment of this invention, FIG. 5 is a front view showing the main parts of the embodiment shown in FIG. 4, and FIG. 6 is an electric circuit diagram of the embodiment shown in FIG. 4. In the figure, 1 is a gear shift lever, 4 is a gear shift lever, 5 is a lever pipe, 7 is a shaft, 8 is a pin, 10 is a plate, 10a is a notched hole, 11 is a link, 12 is an inhibitor switch, 13
is the key switch, 14 is the starter, 15 is the bunch IJ-
116 is a servo motor, 17 is a small gear, 18 is a large gear,
19 is a drive lever 20 is a drive device. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] 1, 2 depending on the condition of the vehicle. A speed change lever that is adjusted to a predetermined range such as D, N, R, P, etc., a control device that can supply power to the starter via a key switch only when the speed change lever is operated to the above N range or P range, and the above key. When starting the switch, the above N of the gear shift lever is
Alternatively, an automatic transmission for an automobile includes a drive device that causes the shift lever to be placed in the N range when operating a range other than the P range.