JP2595698Y2 - Locking device for shift lever of automatic transmission - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lever locking device for an automatic transmission, and more particularly, to a shift lever having a reverse inhibit function of a shift lever for preventing the shift lever from accidentally entering a reverse position during running. Related to a lock device.

[0002]

2. Description of the Related Art Conventionally, a vehicle equipped with an automatic transmission (hereinafter referred to as an A / T vehicle) is provided with a floor-type shift lever, and the shift lever designates a shift position of the automatic transmission. . Fig. 8 shows the driver's seat of the A / T car.
Shown in

As shown in FIG. 8, a brake pedal 2 is provided at the driver's seat 1 of an A / T vehicle in front of the driver's seat 1. The driver's seat 1 is provided with a shift lever housing 3 at the front left of the driver's seat 1. A shift pattern hole 4 is formed in the shift lever housing 3, and a shift lever 5 is inserted through the shift pattern hole 4 so as to be swingable in the front-rear direction and the left-right direction.

As shown in FIG. 9, a plurality of steps are formed on the inner surface of the shift pattern hole 4, and when the shift lever 5 is moved, the shift lever 5 is moved right and left along the inner surface of the shift pattern hole 4. Move in the front-back direction while moving in the direction. In the shift pattern hole 4, a shift position corresponding to an automatic transmission (not shown) of the A / T vehicle is set at a predetermined position.

[0005] The shift position is provided with a parking position PP where the drive wheels are mechanically locked, a neutral position PN where the speed change element does not act, and a reverse position PR for moving the vehicle backward. The automatic transmission is a three-speed forward transmission, and its shift position is a drive position PD for performing forward automatic shifting of all transmissions, and fixed positions P1, P2, and P3 fixed to each of the three forward speeds. Is provided.
The function of the shift position can be selected by moving the shift lever 5 in the front-rear direction while swinging the shift lever 5 in the left-right direction and moving the shift lever 5 to each shift position. That is, the shift pattern hole 4 is a passage for the shift lever 5 to move to each shift position.

The operation of the shift lever 5 will be described. For example, when the shift lever 5 is moved out of the parking position PP, the shift lever 5 is first moved rightward until the shift lever 5 becomes a position where it can be moved backward. Next, the shift lever 5 is moved backward (downward in the figure) along the inner surface of the shift pattern hole 4 until the shift lever 5 comes into contact with the step portion 4a. Then, the shift lever 5 is moved to the left to make contact with the inner surface of the shift pattern hole 4. With this operation, the shift lever 5 is moved to the parking position P.
P can escape.

When the shift lever 5 is moved to the neutral position P
When the shift lever 5 is moved from the position N to the reverse position PR, the shift lever 5 is first moved rightward until the shift lever 5 can move forward. Next, the shift lever 5 is moved forward (upward in the figure) until it comes into contact with the step 4b. By this operation, the shift lever 5 can be moved from the neutral position PN to the reverse position PR.

Further, as shown in FIG. 9, the shift lever housing 3 is provided with an inhibit lock mechanism 10. The inhibit lock mechanism 10 includes the shift lever 5
Is inadvertently shifted from the neutral position PN to the reverse position PR.
To prevent entry. That is, if the shift lever 5 at any one of the drive position PD or the fixed positions P1, P2, and P3 enters the reverse position PR due to an erroneous operation while the A / T vehicle is traveling forward, a large shock occurs in the vehicle. . Therefore, the shift lever 5 cannot be moved to the reverse position PR unless conditions such as stopping of the vehicle are satisfied.

The structure of the inhibit lock mechanism 10 will be described. The inhibit lock mechanism 10 includes first and second lock pieces 11 and 12, a link 13, and a solenoid 14. First lock piece 11
Has one end pivotally mounted on the fixed shaft 15 and the other end disposed in the shift pattern hole 4. The second lock piece 12 is rotatably supported by a fixed shaft 16, one end of which is disposed in the shift pattern hole 4, and the other end of which is the link 1.
3 is connected to the first lock piece 11. Also,
The first lock piece 11 is rotatably mounted on a tip of a plunger 14 a of the solenoid 14.

The solenoid 14 is connected to a control circuit (not shown), and the control circuit controls the solenoid 14 to an excited state (ON) and a non-excited state (OFF) based on conditions such as stopping the vehicle. I have. And solenoid 1
4 is controlled to be off, the plunger 14a is protruded by the pressing spring 14b, and the first and second lock pieces 1 are moved.
Reference numerals 1 and 12 are arranged in the shift pattern hole 4 and close the shift pattern hole 4, that is, the passage of the shift lever 5.

Then, the shift lever 5 at the parking position PP is engaged with the first lock piece 11, so that the left and right swing thereof is restricted. Therefore, the shift lever 5 cannot escape from the parking position PP. The shift lever 5 at the neutral position PN is in the second position.
And the rocking in the left-right direction is restricted. Therefore, the shift lever 5 is moved to the reverse position PR.
Can not be moved.

On the other hand, when the solenoid 14 is controlled to be turned on, the plunger 14a is retracted to retract the first and second lock pieces 11, 12 from the shift pattern hole 4. Then, the shift lever 5 at the parking position PP does not engage with the first lock piece 11, so that the shift lever 5 can escape from the parking position PP. Further, the shift lever 5 at the neutral position PN does not engage with the second lock piece 12, so that the reverse position PR
Can be moved to.

When the solenoid 14 is off, the shift lever 5 may be in the reverse position PR. At this time, the first lock piece 11 is moved forward by the shift lever 5 against the elastic force of the pressing spring 14b, and is further moved leftward to move to the parking position PP. Further, the second lock piece 12 can be moved rearward by the shift lever 5 against the elastic force of the pressing spring 14b, and further moved to the left to be moved to the neutral position PN.

[0014]

By the way, both lock pieces 11 and 12 constituting the inhibit lock mechanism 10 will be described.
In addition, the link 13 may be difficult to rotate due to dimensional accuracy, the amount of grease applied to the rotating portion, or the like. Since the link lock pieces 11, 12 and the link 13 which are hard to rotate are forcibly rotated, the load on the solenoid 14 is increased and the solenoid 14 cannot be operated stably. is there.

The solenoid 14 is turned on when the shift lever 5 is moved from the parking position PP or the neutral position PN to the reverse position PR, and the plunger 14a is moved. On the other hand, also when the plunger 14a is moved from the reverse position PR to the parking position PP or the neutral position PN, the plunger 14a is moved by the shift lever 5. Therefore, the durability of the solenoid 14 has a problem that, in addition to the case where the plunger 14a moves by the on / off control, the case where the plunger 14a is forcibly moved by the shift lever 5 must be considered.

Further, when the plunger 14a is moved by controlling the on / off of the solenoid 14, the lock pieces 11, 12 and the link 13 also move in conjunction therewith.
There is a problem that the sound when operating the solenoid 14 is loud and annoying.

The present invention has been made to solve the above-mentioned problems, and has been made to simplify the lock mechanism and reduce the driving means.
An object of the present invention is to provide a shift lever lock device of an automatic transmission that can reduce a load and a driving frequency and reduce an operation sound.

[0018]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention switches between a parking position and a reverse traveling position, a neutral position, and a forward traveling position. A shift lever, and an upright standing adjacent to the shift lever;
And left and right by the shift lever.
Rotate to the right and move the shift lever to the parking position or neutral position
To the reverse travel position from the
Turn the shift lever back and forth with the shift lever
Allows movement from reverse driving position to parking position or neutral position
An oscillating body to be activated, and the shift lever to the oscillating body.
Is provided independently on the opposite side of the
Lock position that restricts rotation and unlocking that allows its rotation
An actuating member that moves between a position, in a non-driving state moves the actuating member in said locking position, and a driving hand <br/> stage for moving the actuating member in the unlocked position in the driving state The gist is to have prepared. Also, the rocking body is
Rotatable left and right by rotating shaft extending along the rear direction
Support, back and forth by the rotating shaft extending along the left and right direction
It was rotatably supported.

[0019]

Therefore, according to the present invention, the driving means is not driven.
When the rocking body is in the
In the parking position or the neutral position
The shift lever is prevented from moving to the reverse position
It is. As a result, the shift lever is incorrectly set to the reverse traveling position.
Is prevented from entering. Also, the driving means is not driven
When the shift lever is in the reverse running position and
Move the shift lever to the parking position or neutral while rotating it back and forth.
It is possible to move to a position. At this time, the rocking body
And the actuator are provided independently of each other,
The movement of the moving body is not transmitted to the operating body or the driving means. others
As with the conventional, the drive means
Is not forcibly driven, and the driving means is driven.
Frequency can be reduced. When the driving means is in the driving state
The operating body allows the rocking body to turn left and right.
The shift lever moves backward from the parking position or the neutral position.
It is possible to move to the use position. In the present invention,
Since the rocking body and the operating body are provided independently,
Only the actuator is driven by the driving means.
You. In other words, the link is driven by the driving means as in the past.
Using the mechanism, the reverse travel position, parking position and neutral position
It is not necessary to open and close the passage between the two. This allows the driver
The stage load can be reduced and the operating noise is low.
It can also be reduced.

[0020]

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG. In this embodiment, FIG.
The same components as those in 9 are denoted by the same reference numerals, and detailed description is omitted. Further, the operation of moving the shift lever 5 to each shift position is the same as the conventional operation, and the description thereof will be omitted.

As shown in FIG. 1, an inhibit lock mechanism 20 is provided near the shift pattern hole 4.
The inhibit lock mechanism 20 is provided with a lock piece 21.

As shown in FIGS.
Is supported by a fixed shaft 23 via a universal joint 22. The lock piece 21 is rotatable in the front-rear direction and the left-right direction (left-right direction in FIG. 3) with respect to the paper surface by the universal joint 22.

A first spring 2 is provided in front of the lock piece 21.
One end of the second spring 25 is engaged with one end of the second spring 25. The other ends of the springs 24 and 25 are fixed to the shift lever housing 3, respectively. Each spring 2
Reference numerals 4 and 25 denote pressing springs, which are always lock pieces 21.
Are held at positions pressed against each other from the front-back direction.
This position is the original position.

Further, as shown in FIG.
One end of a third spring 26 is engaged with the right side surface of the
The other end of the spring 26 is fixed to the shift lever housing 3. The third spring 26 is a pressing spring, and always presses the lock piece 21 against a stopper 27 provided on the shift lever housing 3. Therefore, the lock piece 21 always has the first and second springs 2.
It is held in its original position by 4 and 25 and is pressed against a stopper 27 by a third spring 26.

As shown in FIGS. 1 and 3, the lock piece 21
First and second locking portions 28 and 29 are formed to project from the left and right sides of the front and rear ends. The locking portions 28 and 29 are arranged in the shift pattern hole 4 with the lock piece 21 pressed against the stopper 27, respectively.

When the lock piece 21 is at the original position and is pressed against the stopper 27, the first locking portion 28 blocks the passage between the parking position PP and the reverse position PR. At this time, the first locking portion 28 and the parking position P
The shift lever 5 at P is engaged. Similarly, the second locking portion 29 blocks the passage between the neutral position PN and the reverse position PR when the lock piece 21 is at the original position and is pressed against the stopper 27. At this time, the second locking portion 29 is engaged with the shift lever 5 at the neutral position PN. When the shift lever 5 at the parking position PP or the neutral position PN is swung in the left-right direction, the lock piece 21 is turned in the left-right direction based on the swing.

On the right side of the front and rear ends of the lock piece 21, cylindrical lock pins 30 and 31 are formed so as to protrude. The inhibit lock mechanism 20 is provided with a solenoid 32 (not shown in FIG. 3). The solenoid 32 is provided with a plunger 33. or,
A spring 34 is provided on the solenoid 32. Spring 3
Reference numeral 4 denotes a compression spring, which causes the plunger 33 to protrude by the elastic force of the spring 34 when the solenoid 32 is in a non-excited state (OFF). On the other hand, when the solenoid 32 is in the excited state (ON), the plunger 33 is retracted to the back against the elastic force of the spring 34.

A lock bar 35 is provided at the tip of the plunger 33.
Is fixed. The lock bar 35 is a lock pin 30,
31 is disposed at a position where it can come into contact with the distal end. When the lock pins 30 and 31 abut against the lock bar 35, the lock piece 21 is restricted from turning rightward. As a result, the rightward swing of the shift lever 5 at the parking position PP is limited, and the shift lever 5 cannot swing rightward to a position where it can move downward. Further, rightward swing of the shift lever 5 at the neutral position PN is restricted, and the shift lever 5 cannot swing rightward to a position where it can be moved upward. The position of the lock bar 35 at this time is defined as a lock position.

The lock bar 35 has insertion holes 36 and 37 at its front and rear ends. The insertion holes 36 and 37 are formed in such a size that the lock pins 30 and 31 of the lock piece 21 can be inserted. As shown in FIG. 5, when the solenoid 32 is turned on and the plunger 33 moves forward, the lock bar 35 moves rightward, and the insertion holes 36 and 37 and the lock pins 30 of the lock piece 21 at the original position are moved. 31 are opposed to each other. Therefore, as shown in FIG. 6, when the lock bar 35 moves forward,
The lock pins 30, 31 can be inserted into the insertion holes 36, 37, so that the right rotation of the lock piece 21 is not hindered. As a result, the shift lever 5 at the parking position PP can swing rightward, and can swing rightward to a position where the shift lever 5 can move downward. Also, the shift lever 5 in the neutral position PN
Can be swung rightward, and can be swung rightward to a position where it can move upward. The position of the lock bar 35 at this time is set as the unlocked position.

As shown in FIG. 1, a parking switch 38 and a neutral switch 39 are provided near the shift pattern hole 4. Parking switch 3
Numeral 8 is provided at a position where it is engaged with the shift lever 5 at the parking position PP, and is ON (closed) in the engaged state.
Becomes The neutral switch 39 is provided at a position where it engages with the shift lever 5 at the neutral position PN.
It is turned on (closed) in the engaged state.

As shown in FIG. 7, the shift lever 5
Is in the reverse position PR and the lock bar 35 has moved backward, that is, the lock piece 21 may not rotate rightward. At this time, in order to move the shift lever 5 to the parking position PP, first, the shift lever 5 is moved forward to engage with the locking portion 28. Then, the shift lever 5 can be moved to the parking position PP by moving the shift lever 5 in the forward direction against the elastic force of the first spring 24 and the second spring 25 and further in the left direction.

On the other hand, in order to move the shift lever 5 to the neutral position PN, contrary to the case of moving to the parking position PP, first, the shift lever 5 is moved backward to engage with the locking portion 29. Then, the shift lever 5 is moved rearward against the elastic force of the first spring 24 and the second spring 25, and is further moved leftward to be able to move to the neutral position PN.

Next, the electrical structure of the shift lever lock device of the automatic transmission will be described. As shown in FIG. 4, an ignition switch 41 is connected to the control circuit 40. Ignition switch 41 is driver's seat 1
Are provided in a key cylinder (not shown). A key lock solenoid 42 is provided in the key cylinder, and the key lock solenoid 42 is connected to the control circuit 40. When energized, the key lock solenoid 42 protrudes a plunger (not shown), and the plunger prevents the ignition key from rotating from a predetermined position, thereby preventing the ignition key from being pulled out.

A battery is mounted on the A / T vehicle, and a contact on one end of an ignition switch 41 is connected to the battery E. The ignition switch 41 is provided with an accessory contact ACC and an ignition contact IG, and is appropriately connected to the accessory contact ACC and the ignition contact IG based on a rotation operation amount of an ignition key (not shown). The two contacts ACC and IG are respectively connected to the control circuit 40, and the voltage of the battery E is used as an accessory power supply and an ignition power supply, respectively.
Supplied to Then, the control circuit 40 is driven based on the supplied power of the battery E.

The parking switch 38 is connected to the control circuit 40. The control circuit 40 inputs the ON of the parking switch 38 and detects that the shift lever 5 is at the parking position PP. Also,
The neutral switch 39 is connected to the control circuit 40. The control circuit 40 includes a neutral switch 39
Is turned on, and the shift lever 5 is moved to the neutral position P.
N is detected. Control circuit 40
The on / off control of the solenoid 32 is performed based on the detected position of the shift lever 5.

A vehicle speed sensor 43 is connected to the control circuit 40, and detects a vehicle speed when the A / T vehicle is traveling forward based on the state of the vehicle speed sensor 43. And
When the speed of the A / T vehicle is equal to or higher than a predetermined vehicle speed (10 km / h in this embodiment), the solenoid 32 is turned off to prevent the shift lever 5 from entering the reverse position PR.

A brake switch 44 is connected to the control circuit 40, and the depression of the brake pedal 2 is detected by the brake switch 44. The control circuit 40 turns on and off the solenoid 32 based on the detected depression of the brake pedal 2.

That is, the control circuit 40 includes a parking switch 38, a neutral switch 39, a brake switch 4
The solenoid 32 is turned on (excited) and turned off (de-excited) according to conditions based on the states of the vehicle speed sensor 4 and the vehicle speed sensor 43. When the solenoid 32 is turned on and off, the lock bar 35 is moved between the unlocked position and the locked position. When the lock bar 35 is at the locked position, the rightward rotation of the lock piece 21 is restricted. As a result, the movement of the shift lever 5 is restricted.

Next, the operation of the reverse inhibit device for a shift lever according to the present embodiment will be described. When the driver rotates the ignition key to connect the ignition switch 41 to the accessory contact ACC, the voltage of the battery E is applied to the control circuit 40 via the accessory contact ACC. Then, the control circuit 40 inputs the states of the parking switch 38, the neutral switch 39, the vehicle speed sensor 43, and the brake switch 44, and controls the drive of the solenoid 32 based on the states.

That is, the control circuit 40 controls the solenoid 32 to be off when the parking switch 38 is on, that is, when the shift lever 5 is at the parking position PP. Then, the plunger 33 is protruded by the elastic force of the spring 34, and moves the lock bar 35 to the lock position.
At this time, the lock pins 30 and 31 abut on the lock bar 35, and the rightward rotation of the lock piece 21 is restricted. Therefore, the rightward swing of the shift lever 5 is limited,
Cannot escape from parking position PP.

On the other hand, when the parking switch 38 is off, that is, when the shift lever 5 is not in the parking position PP, the control circuit 40 controls the solenoid 32 to be on. When the solenoid 32 is turned on, the plunger 3
Numeral 3 is pulled inward against the elastic force of the spring 34, and moves the lock bar 35 to the unlocked position. Then, as shown in FIG. 5, the lock pins 30, 31 are inserted into the insertion holes 36, 37.
The lock piece 21 can be inserted into the lock bar 35
This enables the rightward rotation. Accordingly, as shown in FIG. 6, the shift lever 5 can be moved to an arbitrary shift position without restricting its swing.

Next, the driver rotates the ignition key to turn the ignition switch 41 on the ignition contact I.
When connected to G, the voltage of the battery E is applied to the control circuit 40 via the ignition contact IG.

First, the case where there is a vehicle speed, that is, the case where the A / T vehicle is traveling forward will be described. At this time, the shift lever 5 is located at any one of the fixed position P1 from the neutral position PN. The control circuit 40 includes a vehicle speed sensor 43
, The vehicle speed is detected, and the solenoid 32 is turned off. When the solenoid 32 is turned off, the plunger 33 projects by the elastic force of the spring 34 and moves the lock bar 35 to the lock position. Then, the lock pins 30 and 31 contact the lock bar 35, and the right rotation of the lock piece 21 is restricted. Therefore, when the shift lever 5 enters the neutral position PN during traveling, the swing thereof is restricted, and the shift lever 5 cannot be moved to the reverse position PR. as a result,
Inadvertent movement of the shift lever 5 to the reverse position PR during traveling can be prevented.

Next, when there is no vehicle speed, that is, when the A / T vehicle is stopped and the brake pedal 2 is depressed and the brake switch 44 is on, the control circuit 40 sets the parking switch 38 and the neutral switch 39. , The solenoid 32 is controlled to be on regardless of the state. When the solenoid 32 is turned on, the plunger 33 is pulled inward against the elastic force of the spring 34, and moves the lock bar 35 to the unlocked position. Then, the lock pins 30 and 31
Can be inserted into the insertion holes 36 and 37, respectively, and the lock piece 21 can rotate rightward. Therefore, when the shift lever 5 is at the parking position PP or the neutral position PN, it can swing rightward, and can be moved from the parking position PP to an arbitrary shift position between the fixed position P1.

On the other hand, when the A / T vehicle is stopped and the brake switch 44 is off, that is, when the brake pedal 2 is not depressed, the shift lever 5 is moved to the parking position P.
When it is at P, the parking switch 38 is turned on by the shift lever 5. The control circuit 40 inputs the ON of the parking switch 38 and controls the solenoid 32 to be OFF. When the solenoid 32 is turned off, the plunger 3
3 project by the elastic force of the spring 34,
Moves to the locked position. Then, the rightward rotation of the lock piece 21 is restricted by the lock bar 35.
Therefore, the swing of the shift lever 5 is limited,
It is not possible to escape from the parking position PP.

When the shift lever 5 is at the neutral position PN, the neutral switch 39 is turned on by the shift lever 5. The control circuit 40 inputs the ON of the neutral switch 39 and controls the solenoid 32 to be OFF. When the solenoid 32 is turned off, the plunger 33 projects by the elastic force of the spring 34, and the lock bar 35 moves to the lock position. Then, the rightward rotation of the lock piece 21 is restricted by the lock bar 35. Therefore, since the swing of the shift lever 5 is limited, the shift lever 5 cannot move from the neutral position PN to the reverse position PR.

As described in detail above, in this embodiment,
The inhibit lock mechanism 20 for restricting the movement of the shift lever 5 is separated into a lock piece 21 and a lock bar 35, and the lock bar 35 is connected to the plunger 33 of the solenoid 32.
It was fixed and moved. As a result, since the solenoid 32 only moves the lock bar 35,
The load on the solenoid 32 is reduced, and the solenoid 32 can operate stably.

When the shift lever 5 is moved to the reverse position PR.
When the lock piece 21 is moved from the first position to the parking position PP or the neutral position PN, only the lock piece 21 rotates, so that the plunger 33 of the solenoid 32 is not forcibly moved. As a result, the durability of the solenoid 32 only needs to be considered in terms of the number of attempts to drive it.

Further, when the solenoid 32 is driven, only the lock bar 35 is moved by the movement of the plunger 33, so that the noise generated when the solenoid 32 is operated can be reduced.

The present invention is not limited to the above embodiment, but may be implemented as follows. (1) In the above embodiment, the lock piece 21 is rotatably supported on the fixed shaft 23 by the universal joint 22 in the front-rear direction and the left-right direction. It may be supported.

(2) In the above embodiment, the lock piece 21
And second springs 24, 2 for holding the
Although a push spring is used for 5, a tension spring or the like may be used to hold the original position. Further, the lock piece 21 is moved to the stopper 2 by using a third spring 26 which is a pressing spring.
Although the lock piece 21 is brought into contact with the stopper 27 from the stopper side by using a tension spring or the like, the lock piece 21 may be brought into contact with the stopper 27.

(3) In the above embodiment, the control circuit 40 is provided with the solenoid 32 and the key lock solenoid 42. However, the control circuit 40 may be provided with only the solenoid 32. (4) In this embodiment, the control circuit 40 controls the solenoid 3 based on the states of the parking switch 38, the neutral switch 39, the vehicle speed sensor 43, and the brake switch 44.
2 is controlled to be on / off, but the combination may be changed as appropriate to be implemented.

Further, in the above embodiment, when the vehicle speed is 10 km / h or more, the solenoid 32 is turned off to limit the movement of the shift lever 5 when the vehicle speed is higher than 10 km / h, but the vehicle speed is changed to an appropriate value. When the value is equal to or greater than the value, the solenoid 32 may be turned off to restrict the movement of the shift lever 5.

(5) In this embodiment, a three-speed automatic transmission is used, and a drive position PD for performing forward automatic shifting of all transmissions, and fixed positions P1 and P fixed to each of three forward speeds.
Although P2 and P3 are set, they may be set arbitrarily, such as being set at the drive position PD and the fixed positions P1 and P2. Further, the present invention may be implemented by using an automatic transmission capable of performing two-step shifting or four or more-step shifting.

The shape of the shift pattern hole 4 in the present embodiment is not limited to the above. For example, the shape may be appropriately changed to a mirror-reversed shape in the left-right direction.

(6) In this embodiment, two lock pieces 21
Although one lock pin 30, 31 is formed, one or three or more lock pins may be formed. that time,
It goes without saying that the insertion holes formed in the lock bar 35 are formed in accordance with the position and the number of the lock pins.

(7) In this embodiment, the neutral switch 39 which is engaged when the shift lever 5 is in the neutral position PN is provided to detect that the shift lever 5 is in the neutral position PN. A neutral detection sensor for detecting that the transmission element does not act on the transmission may be provided, and the shift lever 5 may be detected to be in the neutral position PN based on the detection result of the neutral detection sensor.

[0059]

According to the present invention, as described in detail above, the locking mechanism is simplified to reduce the load on the driving means and the driving frequency.
Operating noise can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating a lock mechanism of a shift lever according to the present invention.

FIG. 2 is a view as seen from an arrow X of the lock mechanism.

FIG. 3 is a view of the lock mechanism as viewed in the direction of the arrow Y.

FIG. 4 is a block circuit diagram illustrating a control circuit of a lock mechanism of a shift lever.

FIG. 5 is a view of the lock mechanism as viewed from an arrow X when the lock bar is moved to a non-lock position.

FIG. 6 is a view as viewed in the direction of the arrow Y, illustrating the movement of the lock piece with respect to the left and right swing of the shift lever.

FIG. 7 is a plan view illustrating movement of a lock piece with respect to movement of a shift lever from a reverse position.

FIG. 8 is a schematic diagram showing a driver's seat of an A / T vehicle.

FIG. 9 is a plan view illustrating a conventional inhibit lock mechanism of a shift lever.

[Explanation of symbols]

5: shift lever, 21: lock piece as rocking body, 32: solenoid constituting drive means , 33: drive
Plunger constituting means , 34 ... Spring constituting driving means , 35 ... Lock bar as operating body, PP ... Parking position as parking position, PR ... Reverse position as reverse traveling position, PN … Neutral position as neutral position, PD… Drive position as forward running position

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16H 59/00-61/12 F16H 61/16-61/36 F16H 63/00-63/48 B60K 20 / 00-20/08

Claims (2)

(57) [Scope of request for utility model registration] 1. A parking position (PP), a reverse traveling position (PR), a neutral position (PN), and a forward traveling position (P).
A shift lever (5) switched between D), and standing upright adjacent to the shift lever (5);
It is rotatably supported left and right, and
And rotate the shift lever (5) left or right to the parking position.
(PP) or neutral position (PN) to reverse drive position (P
R) and the shift lever
Rotate back and forth at (5) to move the shift lever (5)
From reverse driving position (PR) to parking position (PP) or neutral
An oscillating body (21) capable of moving to a position (PN); and the shift lever (5) with respect to the oscillating body (21).
Are provided independently on opposite sides, and are provided on the left and right sides of the rocking body (21).
A lock position that restricts rotation and a non-
An operating body (35) that moves between the lock position and an operating body (35) that is moved to the lock position in a non-driven state, and the operating body (35) in a driven state.
Driving means (32, 3) for moving the
3, 34), wherein a shift lever lock device for an automatic transmission is provided. 2. The oscillating body (21) is moved along the front-rear direction.
Supported by a rotating shaft (23) extending right and left
And rotate back and forth by a rotating shaft extending along the left and right direction
The shift lever of the automatic transmission according to claim 1, wherein the shift lever is supported as possible.
Bar locking device.