JPH0270531A - Column type shifting device for automatic transmission for automobile - Google Patents

Abstract

PURPOSE:To surely make operation and compact the whole shifting device by providing a shift locking mechanism. CONSTITUTION:A flat-plate state control plate 13 is installed in the base part of a shifting lever 4, the detent window 14 of a shifting pattern 6 is formed on the plate 13, and also the detent pin 5 engaging with the pattern 6 is arranged on the lever 4. Moreover the locking member 19 opening and closing the entrance of the parking range of the pattern 6 is engaged with an actuator 21, the member 19 is closed during the pin 5 is placed in the parking range, and the member 19 is opened by pushing down a brake pedal.

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to a column type shift device for an automatic transmission for automobiles, and more particularly to a shift operation mechanism and a shift lock mechanism.

b. Prior Art Shift devices for automatic transmissions for automobiles include a floor shift device and a column type shift device.

In a column type shift device, a selector shaft is attached to a steering column, a shift lever is located near the steering wheel, and a shift pattern range selection means is installed on the selector shaft.

Conventionally provided shift pattern range selection means includes a cylindrical control member with a detent window formed around the selector shaft, and a bottle implanted in the selector shaft inserted into the detent window. There is.

In such a column type shift device, a shift pattern range is selected by moving and rotating a selector shaft in the axial direction using a shift lever.

C1 Problems to be Solved by the Invention By the way, in the shift pattern range selection means in such a column type shift device, the detent window is formed in a cylindrical control member, which makes the processing complicated.
In addition, it is difficult to achieve high dimensional accuracy, and moreover, it is necessary to secure a space for installing the cylindrical control member, so the selector shaft must be installed away from the steering column, which increases the size of the device.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a column-type shift device for an automatic transmission for an automobile that is easy to process, has high dimensional accuracy, is compact, has excellent durability, and is more reliable in operation. It is in.

d. Means for Solving the Problems In the column type shift device for an automatic transmission for automobiles of the present invention, a flat control plate is installed at the base of the shift lever,
A detent window for the shift pattern is formed on the control plate, a detent pin that engages with the shift pattern is disposed on the shift lever, and a locking member for opening and closing the entrance to the parking range of the shift pattern is formed on the control plate. and the locking member is engaged with the actuator, the locking member is closed while the detent pin is placed in the parking range, and the locking member is opened by depressing a brake pedal. I try to let them do it.

e. Embodiment FIGS. 1 to 8 show a column-type shift device for an automatic transmission for an automobile according to the present invention.

This shift device includes a shift operating device fIA, a locating mechanism B, a shift lock mechanism C, and a key rotor mechanism of a cylinder lock for an ignition switch.

The shifting device has a cylindrical housing 1 to which a placket 2.3 is fixed. This housing 1 is arranged along the steering column E, and is fixedly installed on the steering column E, dash board F, etc. by a bracket 2.3.

The shift operation mechanism A moves a detent pin 5 installed integrally with the shift lever 4 on a shift pattern 6 by operating a shift lever 4, and also moves a cable connecting pin 8 via a selector shaft 7. The automatic transmission (not shown) is operated via a cable connected to the pin 8.

The shift lever 4 has a vibrator 9, as shown in FIG. The vibrator 9 shapes the shift lever 4, and is curved to improve the operability of the shift lever 4. A release rod 10 is fitted into the vibrator 9 with a sufficient gap between the vibrator 9 and the vibrator 9. The release rod 10 is curved to follow the shape of the vibrator 9, and has a button 11 at its tip and the detent pin 5 at its base. This release rod 10 is urged toward the distal end of the shift lever 4 by a spring 12. The base end of the shift lever 4 is fixed to the upper end of the selector shaft 7. The selector shaft 7 is connected to the housing 1
The cable connecting bin 8 is fixedly attached to one end of the cable. On the other hand, a control plate 13 is integrally installed at the upper end of the housing l. A detent window 14 is formed in the plate 13, and a shift pattern 6 is formed on the side wall of the detent window 14. And this detent window 1
A detent pin 5 of the shift lever 4 is fitted into the pin 4, and the pin 5 is pressed against the shift pattern 6 by the biasing force of the spring 12.

The locating mechanism B provides moderation to the rotational movement of the shift lever 4, and has locating holes 15 formed in the control plate 13 in a number corresponding to the number of ranges of the shift pattern 6. Housing 1
6 are arranged. A locating ball 17 is housed within the ball housing 16, and the ball 17 is constantly urged downward by a spring 18. The locating ball 17 moves over the locating hole 15 as the shift lever 4 rotates, fits into the wire hole 15, and positions the shift lever 4.

In the shift lock machine iiC, the detent pin 5 of the shift lever 4 is in the parking range 6a of the shift pattern 6.
When the device is in use, the eight-wheel detent bin 5 is restrained in that position, and the restraint is released under conditions described later.

This shift lock mechanism C has a lock ring 19 disposed directly below the control plate 13.

This lock ring 19 is rotatably supported by the housing 1 and includes a lock claw 19a and an operating projection 19b. This lock ring 19 is biased clockwise in FIG. 5 by a spring 20 interposed between the ring 19 and the control plate 13, and the lock claw 19a is moved to a position outside the parking range 6a. is on standby.

The shift lock mechanism C also includes an electromagnetic actuator 21 operated by a controller G (not shown) and a lever 22 operated by the actuator 21. This lever 22 is arranged on the peripheral wall of the housing 1, one end engages with the protrusion 19b of the lock ring 19, and the other end is connected to the plunger 21a of the 5HTa actuator 21 via a cable 23. When the electromagnetic actuator 21 is excited, the plunger 21a is retracted, the lever 22 is rotated clockwise in FIG. 6, the lock ring 19 is rotated counterclockwise in FIG. 4, and the pawl 19a is rotated. It is moved to the parking range 6a population of shift pattern 6. This lock ring 19 comes into contact with two stopper pins 24 installed on the back surface of the control plate 13, and stops the claws 18a there. That is, in this state, the detent bin 5 is restricted to the parking range 6a and cannot be shifted.

The key locking mechanism of the ignition switch cylinder lock 25 is such that the key 28 can be removed from the rotating body 27 in the cylinder lock body 26 only when the shift lever 4 is operated to the parking range 6a. This is what I did. This lock has four parts, lever 2
9, and the lever 29 is disposed on the peripheral wall of the housing 1. One end of this lever 29 projects upward through a hole 30 formed in the control plate 13. One end of this lever 29 is engaged with a tongue piece 31 attached to the ball housing 16 of the shift lever 4, and the other end of this lever 29 is connected to one end of a cable 32. The other end of the cable 32 is connected to the cylinder lock body 2
6 , and is biased by a spring 33 so that the tip thereof enters inside the cylinder lock body 26 . When the tip of the cable 32 is protruding inward from the cylinder lock body 26 as shown in FIG. Rotation is prevented.

Note that when the tip of the cable 32 is retracted as shown in FIG. 7(b), the key 28 can be freely rotated.
Therefore, the key 28 can be rotated to a position where it can be removed, and the key 28 can be removed.

The operation of the shift device described above will be explained below.

When the automobile is not in use, that is, when the key 28 is removed from the cylinder 12 main body 26, the detent bin 5 of the shift transfer gear 4 is placed in the parking range 6a of the shift pattern 6, and the electromagnetic actuator 21 is demagnetized. 5, and the lock ring 19 is in the position where the detent bin 5 is unlocked, as shown in FIG. In addition, in this state, the ball 17 of the locating mechanism B is in the LI locating hole 15a at the 1st end.
The lever 29 is rotated as shown in FIG. 7(b), and the other end of the wire 32 is retracted from the rotating body 27 of the cylinder lock body 26.

When the key 28 is inserted into the cylinder lock body 26 and rotated to the ON position, the electromagnetic actuator 19 is excited.

When the electromagnetic actuator 19 is excited, the lever 22 is rotated to the position shown by the two-dot chain line in FIG. 6, and the lock ring 19 is rotated to the lock position shown in FIG. 4. Therefore, in this state, even if an attempt is made to operate the shift lever 4, the detent bin 5 will not move from the lock ring 19.
The shift lever 4 cannot be operated from the parking range 6a to any other range.

In order to unlock the shift lever 4 by the lock ring 19, it is necessary to depress a brake pedal (not shown). When the brake pedal is depressed, an activation signal is sent to a controller (not shown), and the electromagnetic actuator 19 is demagnetized by the controller. Therefore, the lock ring 19 is rotated by the biasing force of the spring 20, as shown in FIG. 5, and unlocks the detent pin 5.

Next, in order to operate the shift lever 4, it is necessary to press the button 11 of the shift lever 4. When the button 11 is pressed, the detent bin 5 is released via the release rond 10.
is escaped from the parking range 6a. therefore,
The detent bin 5 of the shift lever 4 has a detent window 14
Detent pin 5 can be moved freely in any range of shift pattern 6 (reverse range 6b, neutral range 6c).

It can be placed in the drive range 6d, sensor range 6e, and low range 61').

In this way, when the shift lever 4 is moved from the parking range 6a to another range, the pole housing I6 of the locating mechanism B is also moved accordingly. Therefore, the lever 29 is also rotated by the biasing force of the spring 33 as shown in FIG. This state continues unless the shift lever 4 is placed into the parking range 6a again. Therefore, during this period, the key 28 cannot be removed from the cylinder lock body 26 even if the engine is stopped.

To remove the key 28 from the cylinder lock body 26, it is necessary to insert the shift lever 4 into the parking range 6a. When the shift lever 4 is placed in the parking range 6a, the lever 29 is rotated by the ball housing '/' 16 of the locating mechanism B via the tongue piece 31, as shown in FIG. 7(b). The tip of the wire 32 is retracted from the rotating body 27 of the cylinder lock body 26.

Therefore, the rotating body 27 can be rotated to the steering lock position, and by rotating to this position, the key 28 can be removed. On the other hand, the shift lever
4 is thrown into the parking range 6a, tEuft
The actuator 21 is energized, thereby rotating the lock ring 19 to the lock position shown in FIG. 4, and moving the detent bin 5 of the shift lever 4 into the parking range 6a.
locked inside. However, this lock is released when the key 28 is rotated to the steering lock position because the electromagnetic actuator 21 is demagnetized.

In the shift lock mechanism C in the above embodiment, the detent bin 5 of the shift lever 4 is locked in the parking range 6a by energizing the electromagnetic actuator 21, and the lock is released by demagnetizing the electromagnetic actuator 21. However, when the electromagnetic actuator 21 is in the demagnetized state, the detent bin 5 may be locked in the parking range 6a, and the lock may be released by energizing the electromagnetic actuator 21. In this way, the key 28 Even when the detent pin 5 of the shift lever 4 is pulled out from the cylinder lock body 26, the detent pin 5 of the shift lever 4 can be automatically locked into the parking range 6a. At this time, the electromagnetic actuator 21 is excited, and after confirming that the detent pin 5 has left the parking range 6a, the electromagnetic actuator 21 is activated.
By demagnetizing the electromagnetic actuator 21, the durability of the electromagnetic actuator 21 can be increased.

When the shift lever 4 is returned to the parking range 6a from another range, the claw 19a of the lock ring 19 is pushed away by the detent pin 5.

f. Effects of the Invention As described above, the column type shift device for an automatic transmission for automobiles according to the present invention is equipped with a shift lock mechanism, so that the operation becomes more reliable and is extremely compact.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a column type shift device for an automatic transmission for automobiles according to the present invention, Fig. 2 is a side view showing the upper part of the device, and Fig. 3 is a shift lever of the device. The cross-sectional views, FIGS. 4 to 6, show the shift lock mechanism in the device. FIGS. 4 and 5 show the shift lock mechanism using the lock ring and the unlocked state, and FIG. 6 shows the shift lock mechanism using the lock ring. It shows the means of operation of
Figures 7 and 8 show the key lock mechanism of the cylinder lock for the ignition switch of the device.
The figure shows the state in which the key can be removed, and FIG. 8 shows the key in the locked state. A... Shift operation mechanism, B... Locating mechanism, C... Shift lock mechanism, D... Key lock mechanism, E... Steering column, 1... Housing, 4... Shift lever -5
...Detent pin, 6...Shift pattern, 6
a... Parking range, 7... Selector shaft, 8... Cable connecting pin, 9... Pipe, 10... Release rond, 11...
Button, 12...Spring, 13...
・Control plate, 14... Detent window, 15.
... locating hole, 16... ball housing,
17...Ball, 18...Spring,
19...Lock ring, 19a...Lock claw, 20...Spring, 21...Electromagnetic actuator, 22...Lever, 24...Stopper bin, 25...
・Cylinder lock, 26... Cylinder lock body, 27
... Rotating body, 28 ... Key 29 ... Lever 30 ... Hole, 31 ... Tongue piece,
32...Wire, 33...Spring.

Claims (1)

[Claims] A flat control plate is installed at the base of the shift lever, a detent window for the shift pattern is formed on the control plate, a detent pin that engages with the shift pattern is arranged on the shift lever, and a detent window for the shift pattern is formed on the control plate. A locking member for opening and closing an entrance of the parking range is arranged in parallel with the control plate, and the locking member is engaged with an actuator, and the locking member is closed while the detent pin is inserted into the parking range. A column-type shift device for an automatic transmission for an automobile, characterized in that the lock member is opened by depressing a brake pedal.