JPH0532342Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a shift device for an automobile auto-change equipped with an automatic transmission.

(Prior Art) Conventionally, a shift device shown in FIG. 5 has been provided as an auto-change shift device for automobiles.

In this shift device, a change lever 1 is disposed passing through an opening 13 of a base plate 12, and is rotatably supported by a shaft 14 attached below the base plate 12.

A spring 2 and a rod 3 are inserted into the change lever 1, and a position pin 4 attached to the rod 3 projects outward through a long groove 5 in the vertical direction provided in the change lever 1.

A knob 6 is attached to the upper part of the change lever 1, and as shown in FIG. 6, a push button 7 is disposed in a side opening of the knob 6, and the push button 7 is urged outward by a spring 9. It is held in the state shown by a stopper (not shown).

Further, a sloped surface 8 is formed on the back side of the push button 7, and the upper end of the rod 3 is urged by a spring 2 to press against the sloped surface 8 near the back side.

A detent plate 15 is vertically attached to the upper surface of the base plate 12, and an arcuate position regulating groove 16 centered on the shaft 14 is formed in the detent plate 15. A plurality of engaging portions are engaged with, i.e., from the right side in FIG. , step part 2 for D1
0, 21, and 22 are formed, respectively.

Further, a plurality of bent ridges 23 are formed on the upper edge of the detent plate 15 corresponding to the engaging portions,
A roller of a leaf spring 11 attached to the bracket 10 of the change lever 1 is engaged with this bent ridge 23.

In the shift device having the above configuration, by pushing the push button 6 in the direction of arrow a, the rod 3 moves downward in the direction of arrow b along the inclined surface 8,
Position pin 4 protruding from change lever 1
moves downward along the long groove 5, and the engagement between the position pin 4 and the groove 17 and the stepped portions 18, . . . , 22 is released.

Then, by rotating the change lever 1 in this state, the range is shifted and the gear combination of the transmission (not shown) is changed. Furthermore, the neutral range N
and drive range D, as well as drive ranges D1, D2 or reverse range R.
Switching from to neutral range N to drive range D can be done simply by rotating the change lever 1 without pressing the push button 7.

Also, by rotating the change lever 1, the leaf spring 1
Since the roller attached to 1 moves over the bending peak 23, the shift operation is performed with appropriate moderation.

(Problems to be Solved by the Invention) However, the shift device does not include any means for prohibiting the push button 7 from being pressed.

Also, when switching from parking range P to drive range D or reverse range R, it is important to operate change lever 1 with the foot brake depressed in order to prevent the car from starting suddenly. Drivers do not perform these operations every time, and sometimes they forget.

Therefore, if the driver casually changes gears without stepping on the foot brake, the car may suddenly start and cause an accident. In particular, when the engine is idling at high speeds, there is a high possibility that an accident will occur due to a sudden start.

(Means for Solving the Problems) The present invention has been made to solve the above problems, and will be explained with reference to FIGS. 1 and 4 showing one embodiment and FIG. 5 showing a conventional shift device. Then, the change lever 31 that is rotatably supported, the push button 36 that protrudes from the side of the knob 35 provided on the change lever 31 and has an inclined surface 37 that extends obliquely upward toward the rear end, and the position pin. 4 and has an upper end in contact with the inclined surface 37, and a detent plate 15 having a plurality of steps 17 to 22 with which the position pin 4 engages. The position pin 4 is selectively engaged with the plurality of stepped portions 17 to 22 of the detent plate 15 based on the movement of the position pin 4 due to the movement of the push button 36 and the movement of the position pin 4 by pressing the push button 36, thereby changing the gear combination of the transmission. In the shift device for an automobile auto-change, the rod 4
0 is provided with an engaging portion 41, and the stepped portion 17 of the detent plate 15 corresponding to the parking range is connected to the stepped portion 1 of the detent plate 15 corresponding to the other range.
It is formed further from the change lever rotation center 14 than the change levers 8 to 22, and when the change lever 31 is in the parking range, it engages with the engaging portion 41 to prevent the rod 40 from moving, and also prevents the foot brake 49 from moving. A regulating means 43 is provided which releases the blocking state when the operating state is detected.

(Example) The present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a diagram showing an outline of a shift device for an automobile auto-change according to the present invention, in which a part of the shift device shown in FIG. 4, especially the structure above the change lever 1, has been changed. The change lever 31 and knob 35 are integrated via a cylindrical connecting member 32.

The connecting member 32 has a accommodating portion 3 that communicates between the inside and outside.
4 is formed, and an actuator 42 is accommodated therein.

The operating shaft 43 of the actuator 42 is arranged in the outward and outward directions, and a stopper 44 is provided on the inside and an operating section 45 is provided on the outside.
It is arranged to move in the directions of arrows c and c' according to the movement of. Note that the distal end portion 43a of the operating shaft 43 is formed obliquely.

A rod 40 housed in the change lever 31 is inserted into the internal space 33 of the connecting member 32, and the upper end of the rod 40 is pressed against an inclined portion 37 formed on the push button 36 of the knob 35. Further, a flange 41 is formed on the rod 40, and the flange 41 is positioned at a height such that the operating shaft 43 can be engaged with the rod 40 when the rod 40 is in its highest raised state.

As shown in FIG. 4, the detent plate 15 has a stepped portion 19 for neutral range N and a stepped portion 20 for drive range D. The stepped portion 18 for the reverse range R and the stepped portions 21 and 22 for the drive ranges D2 and D1 are formed at the same distance from each other, and are formed closer to the shaft 14 than the stepped portions 19 and 20, and are located closer to the shaft 14 than the stepped portions 19 and 20. The upper edge portion is formed farther from the center of the shaft 14 than the stepped portions 20 and 21, and the flange 41 can engage with the operating shaft 43 only when the position pin 4 is located in the parking groove 17. There is.

Therefore, when the change lever 31 is located in the parking range P, the operating shaft 43 prevents the rod 40 from moving downward;
1 is the other range, that is, reverse range R,
When in drive ranges D, D2, D1 and neutral range N, the flange 41 is located below the operating shaft 43, and by pressing the push button 36, the rod 40 can be moved downward and shifts can be changed freely. be.

The actuator 42 is connected to a control device 47 and operates based on a signal from the control device 47. Further, a brake operation detection sensor 48 that detects the operation of a foot brake 49 is connected to the control device 47 .

Note that 46 is a cover attached to the change lever 31.

In the shift device having the above configuration, when the engine is started with the change lever 31 set to the parking range P, the control device 4
7, the actuator 42 is turned on, and the operating shaft 43 advances into the internal space 33 of the connecting member 32 and engages with the lower surface of the flange 41 to prevent the rod 40 from moving downward and the push button 36 from being pressed.
At this time, the stopper 44 comes into contact with the flange 41 and the position of the operating shaft 43 is regulated. Therefore, in such a state, it is impossible to switch the change lever 31 located in the parking range P to another range.

Next, when the driver steps on the foot brake 49, the operation is detected by the brake operation detection sensor 48.
is detected by the control device 4 based on the detection signal.
7, the actuator 42 is turned off and the operating axis 43
evacuates from the internal space 33. Note that when the driver takes his foot off the foot brake 49, the actuator 42 is turned on again to prevent the rod 40 from moving downward.

Therefore, when the brake is in operation, the range can be changed by pressing the push button 36 and moving the rod 40 downward. In addition, when the driver changes gears, the driver's foot is in a state where the foot brake 49 is depressed or lightly touching it, so even if the car suddenly tries to start when the foot brake 49 is released, this can easily be prevented. can do.

Note that when the change lever 31 is in reverse range R, drive ranges D, D1, D2, or neutral range N, the rod 40 moves downward and the flange 41 is located below the operating shaft 43, and the shift change is Be free.

On the other hand, reverse range R, drive range D,
D2, D1, when switching from neutral range N to parking range P, if the driver does not step on the foot brake 49, the operating shaft 43 will remain protruding into the internal space 33;
Since 3a is formed diagonally, the spring 2
The rod 40, which is urged upward by the flange 41,
slides on the tip 43a and rises to return to the state shown in FIG.

When the engine is stopped or the actuator 42 is in a non-operating state due to a failure in the electrical system, a shift change can be performed by holding the knob 45 and pulling out the operating shaft 43 in the direction of arrow c'.

In the embodiment described above, the actuator 42 is used to prevent the rod 40 from moving downward, but the actuator 42 may be used as shown in FIGS. 2 and 3.

In the shift device shown in FIG. 2, the knob 35 has approximately L.
A letter-shaped release lever 50 is provided so as to be rotatable about a support shaft 51.

This release lever 50 is biased in the direction of arrow c by a spring 52, and is stopped by a stopper (not shown) with one end engaging the lower surface of the flange 41 of the rod 40 in the most upwardly moved state. The other end has an opening 5 formed in the knob 35.
It is made to protrude to the outside via 3.

Further, the release lever 50 includes a wire cable 54.
One end of the wire cable 54 is locked, the wire cable 54 is guided by a guide sleeve 55 disposed between the change lever 31 and the exterior cover 46, and the other end is locked with the foot brake 49.

In the shift device, when the foot brake 49 is depressed, the release lever 50 is released from the spring 5.
2 in the direction of arrow c', and the flange 41
As a result, the push button 36 can be pushed in to change the shift.

Therefore, similarly to the above embodiment, when the driver changes gears, the driver's foot is applied to the foot brake 49.
Since the foot brake 49 is depressed or lightly touched, even if the car tries to suddenly start when the foot brake 49 is released, this can be easily prevented.

When the foot brake 49 is released from this state, the release lever 50 returns in the direction of arrow c due to the biasing force of the spring 52.

At this time, if the change lever 31 is in the parking range P, the tip of the release lever 50 engages with the lower surface of the flange 41.

Furthermore, when the change lever 31 is in the reverse range R, drive ranges D, D2, D1, or neutral range N, the flange 41 is located below the tip of the release lever 50, but from these states the parking range P When the switch is switched to , the flange 41 of the rod 40 is moved upward by the urging force of the spring 2 while sliding on the release lever 50, and the rod 40 returns to the state shown in FIG.

If the wire cable 54 is cut, the knob 35
Holding the release lever 50 protruding from the
Allow pushing.

In the embodiment shown in FIG. 3, the release lever 50
is attached to the exterior cover 46, and its operation is the same as in the second embodiment.

Note that the actuator 42 is not limited to a solenoid, but may also be a motor, a shape memory alloy, or the like.

(Effects of the invention) As is clear from the above explanation, in the automatic change shift device for automobiles according to the invention, when the change lever is in the parking range, unless the foot brake is depressed, the pushbutton will not be pressed. It is set so that it is not possible to change the shift.

Therefore, when changing gears from the parking range, the foot brake must be depressed, and even if the car tries to start or reverse suddenly, it can be easily and instantly stopped, improving safety.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of a shift device according to the present invention, FIG. 2 is a sectional view showing a second embodiment, and FIG.
The figure is a sectional view of the third embodiment, FIG. 4 is a diagram showing the relationship between the stepped portion of the detent plate and the flange, and FIG.
The figure is an exploded perspective view of a conventional shift device, and FIG. 6 is a partially cutaway front view of a change lever. 4...Position pin, 15...Detent plate, 16...Position regulation groove, 17...Parking groove, 18-22...Step, 31...Change lever, 32...Knob, 33...Push button, 34... Inclined part, 35... Engagement step part, 3
7... Release lever, 40... Rod, 41... Flange, 42... Actuator, 43... Operating axis, 47... Control device, 48... Brake operation detection sensor, 49... Foot brake.

Claims (1)

[Claims for Utility Model Registration] A change lever rotatably supported; a push button protruding from the side of a knob provided on the change lever and having an inclined surface extending obliquely upward toward the rear end; A rod having a position pin and having its upper end abutted against the inclined surface, and a detent plate having a plurality of steps with which the position pin engages, the rotation of the change lever and the pushing of the push button In an automobile auto-change shift device that selectively engages the position pin with a plurality of steps of the detent plate based on movement of the position pin to change a combination of transmission gears, the rod has an engaging portion. The stepped part of the detent plate corresponding to the parking range is formed farther from the center of rotation of the change lever than the stepped part of the detent plate corresponding to other ranges, and when the change lever is in the parking range, 1. A shift device for an auto-change for an automobile, characterized in that a regulating means is provided that engages with an engaging portion to prevent movement of the rod, and releases the blocking state when an operating state of a foot brake is detected.