JPH04232145A - Mounting structure for shift lock release system of automatic transmission - Google Patents

Abstract

PURPOSE:To improve outer locking by integratedly fixing a key cylinder and a key leaving prevention device to an indicater pannel by means of a bezel. CONSTITUTION:In case malfunction occurs in an actuater due to some reasons, an ignition key 15 is turned in a specified direction after being inserted into a key hole to turn a release arm 16 projecting downwards below a key cylinder 11 to thereby position it to a postion 161. An abutting part 72 at an upper end of extension member of a lock member 71 is pressed and swung to a rear position 721, and then a lock member 7 is swung rearwards together with the extension member 71 to perform the removal of restriction for a guide pin 5. Namely, the guide pin 5 is lowered to a position 51 and moved to another shift position. At this time, both key cylinder 11 and a key leaving prevention device 12 are housed in a casing 13 intergratedly and fixed to a bezel 14.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a release mechanism for releasing a shift lock in an automatic transmission in which a shift lever is automatically locked when the vehicle is parked.

0002

2. Description of the Related Art As is generally known, an automatic transmission moves a shift lever stepwise in a forward and backward direction to move the shift lever forward and backward.
In the drive position, the reduction ratio is automatically adjusted depending on the vehicle speed, from a stop to high-speed driving.

[0003] In such an automatic transmission, the shift lever is extremely easy to operate and is light, so even a person who cannot drive the vehicle can touch the shift lever and move the vehicle when the vehicle is parked on a slope. If the parking position is switched from the park position to the drive position and the parking brake is released, there is a risk that the vehicle will start moving, and in the park position, the detent pin will engage the detent plate and the shift lever will not be able to move, causing the shift A locking mechanism is provided that allows the detent pin to move and disengage from the detent plate by pressing a push button provided on the lever, thereby moving the shift lever.

Furthermore, as a safety device for parked vehicles,
Automatic transmissions are now equipped with a locking mechanism that automatically locks the shift lever when the vehicle is parked, making it impossible to move the shift lever from the parked position by operating the shift lever alone. Some mechanisms operate an actuator to release the shift lock by depressing the brake pedal after the engine has started. However, such a shift lock release mechanism uses an electrically actuated member, and there is a risk that the shift lock may not be released in the event of a wire breakage or the like.

[0005] Therefore, an emergency shift lock release mechanism has been proposed that manually releases the shift lock when the shift lock release mechanism stops operating. There is a shift lever that selects one of a plurality of positions by a rocking operation, a detent pin that is moved in one direction by pressing a push button provided on this shift lever, and a cooperative action between the detent pin and the shift lever. A detent plate that restricts rocking operation and has a lock recess in which a detent pin moves in the other direction and engages when the shift lever is shifted to a specific non-driving position and the push button is released, and a shift lever. a movable body that engages with the detent pin and moves in conjunction with the detent pin between a locked position and an unlocked position when the movable body is shifted to a specific non-driving position; A locking member that moves between a restraint position where the vehicle is restrained in a locked position and a restraint release position where the movable body is disengaged to release the restraint, and a state in which the shift lever is shifted to a specific non-driving position. and a key device, the key device being an ignition key. A locking device for a shift lever for an automatic transmission is known, which includes a release means using a link or the like that allows a movable body to move a locking member from a locking position to an unlocking position based on the operation of the locking member. There is.

[0006]

[Problems to be Solved by the Invention] The above-mentioned conventional locking device for a shift lever for an automatic transmission employs a release means that uses a mechanical actuating member that combines a link or the like with an emergency shift lock release mechanism. However, since the structure is complicated, the assembly work is complicated and the manufacturing process is time-consuming.

An object of the present invention is to provide a mounting structure for a shift lock release mechanism of an automatic transmission that can prevent vehicle theft, facilitate assembly work, and improve appearance during installation. It is to provide.

[0008]

[Means for Solving the Problems] The present invention unlocks the shift lock of an automatic transmission using an ignition key, and also installs a key cylinder operated by the ignition key on an indicator panel of the automatic transmission and fixes it with a bezel. This facilitates the assembly work and improves the appearance during installation.

Furthermore, by forming the key cylinder and the key removal prevention device as one body and fixing both with a bezel, it is possible to remove the key without complicating the assembly work or deteriorating the appearance at the time of installation. An anti-forget device can be incorporated.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view taken along the line II in FIG. 2 showing a shift lock release mechanism of an automatic transmission, and FIG. 2 is a plan view of an indicator panel of the automatic transmission.

A shift lever 2 having a knob 1 at its upper end is
The lower end is swingably connected to the shaft 3, and the automatic transmission moves around the shaft 3 to park (P), reverse (R), neutral (N), drive (D), 2nd speed (S), 1st speed (L)
Switch to each position.

A push button 4 is provided on the side of the knob 1, and by pressing the push button 4, a long hole in the vertical direction is inserted through a rod 41 (see FIG. 2) provided in the shift lever 2. The guide pin 5 protruding from 21 is lowered against a biasing spring (not shown).

A detent plate 6 is erected from the floor panel 9 parallel to the surface on which the shift lever 2 swings, and an inhibit cam 61 is formed on the detent plate 6. A parking position P is formed as the deepest independent notch, a reverse position R is formed as a shallow notch, a neutral position N, a drive position D, and a second gear position S are formed as deep notches continuous to the reverse position R, and a shallow notch is formed behind that. A first speed position L is formed as a notch.

The guide pin 5 is engaged with an inhibit cam 61, and can be moved from the parking position P to another position by pressing the push button 4 and lowering the guide pin 5.

A plate-shaped locking member 7 that can swing around the shaft 3 is provided on the opposite side of the detent plate 6 from the shift lever 2, and the locking member 7 is aligned with the shift lever 2 at the parking position P. 1, the upper end of the locking member 7 is located below the guide pin 5 to prevent the guide pin 5 from descending (see FIG. 1).

An engagement pin 73 is provided on the side surface of the lock member 7, and an engagement ring 81 having a long hole is provided at the tip of the output rod of the actuator 8 installed in front of the lock member 7. An engagement pin 73 is inserted into the elongated hole, and when the actuator 8 is actuated and the engagement ring 81 moves toward the rear of the vehicle body, the locking member 7 swings toward the rear of the vehicle body via the engagement pin 73 and locks. Guide pin 5 at the upper end of member 7
The engagement with the guide pin 5 is released and the guide pin 5 descends to position 51.
The shift lever 2 can now be moved from the parking position P to another position.

A plate-shaped extension member 7 is attached to the rear end edge of the lock member 7.
1 is fixed, the extension member 71 extends above the upper end of the lock member 7, is located above the upper end of the notch at the parking position P, and is bent forward at the upper end of the extension member 71.
is formed.

The automatic transmission indicator panel 10 includes:
A long hole 101 that extends in the front-rear direction through which the shift lever 2 can swing is parked (P) approximately parallel to the long hole 101 .
, Reverse (R), Neutral (N), Drive (D),
The key cylinder 11 and the key removal prevention device 12 are integrally housed in the casing 13 and fixed to the bezel 14. Then, the key cylinder 11 and the key removal prevention device 12 are inserted together with the casing 13 into the opening provided in the indicator panel 10, and the bezel 1 is inserted.
By engaging the downwardly protruding claws 141 of 4 with the mounting holes, it can be fixed to the indicator panel 10 with one touch. Note that 121 is a cable for outputting a signal from the key removal prevention device 12 to the alarm device.

The key cylinder 11 has a keyhole 110,
An ignition key 15 can be inserted into the key cylinder 11, and a release arm 16 having a substantially L-shaped cross section is located below the key cylinder 11.
is connected to oppose the contact portion 72 of the extension member 71, and when the ignition key 15 is rotated in the direction of arrow F, the release arm 16 is rotated and presses the contact portion 72 of the extension member 71 rearward. .

Next, the operation will be explained. When the actuator 8 stops operating due to some kind of failure, the ignition key 15 is inserted into the keyhole 110 and rotated in the direction of arrow F, thereby moving the key cylinder 11 downward. Rotate the release arm 16 that protrudes to position 161.
When the lock member 7 is rotated, the contact portion 72 at the upper end of the extension member 71 of the lock member 7 is pressed and swung to the rear position 721, and the lock member 7 is swung rearward together with the extension member 71 to restrain the guide pin 5. Release the guide pin 5 to position 5.
1 and move to other gear positions.

[Effects of the Invention] Since the present invention is constructed as described above, it achieves the following effects. Since the key cylinder and key removal prevention device are integrally attached and fixed to the indicator panel using the bezel, installation work is simplified.
This can be done with one touch, improving work efficiency. Furthermore, since it is attached with a bezel, the fixing means does not appear on the outside, improving the appearance.

[Brief explanation of the drawing]

FIG. 1 is a sectional view taken along line II in FIG. 2, showing a shift lock release mechanism for an automatic transmission that is an embodiment of the present invention.

FIG. 2 is a plan view of an indicator panel section of the automatic transmission.

[Explanation of symbols]

2 Shift lever 4 Push button 5 Guide pin 7 Lock member 8 Actuator 10 Indicator panel 11 Key cylinder 12. Key removal prevention device 14 Bezel 15 Ignition key

Claims (2)

[Claims] 1. An automatic transmission characterized in that a shift lock of the automatic transmission is released by an ignition key, and a key cylinder operated by the ignition key is installed on an indicator panel of the automatic transmission and fixed with a bezel. Mounting structure of shift lock release mechanism. 2. The mounting structure for a shift lock release mechanism for an automatic transmission according to claim 1, wherein the key cylinder and the key removal prevention device are integrally formed, and both are fixed by a bezel.