JPH04302763A - Shift lock device - Google Patents

Abstract

PURPOSE:To surely and simply carry out locking and urgently releasing the lock by directly providing an emergency key cylinder for a cover section enclosing a locking mechanism, and concurrently providing a press pawl section which releases the lock as the key cylinder is rotated by an ignition key, for the end section of the cover. CONSTITUTION:When an ignition key 38 is not available, the locking mechanism 30 of a shift lock device 2 forces the movement of a detent pin 16 which is moved with a shift lever 10 moved to be locked while shift operation is thereby disabled. In this case, a press pawl section 40 in the rotating section 40 of a direct emergency key cylinder 36 provided for a console box 34 covering both the shift lever 10 and the locking mechanism 30, is energized by a return spring to the direction parting from the moving space of a plunger 32. When a rotating section 46 is rotated by an ignition key 38 to the specified direction, the plunger 32 is moved to the lock releasing position by the pawl section 40. As a result, shifting by the shift lever 10 can thereby be operable.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lock device, and more particularly to a shift lock device having a lock mechanism for locking shift operation of a shift lever.

0002

2. Description of the Related Art Vehicles are equipped with automatic or manual transmissions in order to convert the driving force generated by an internal combustion engine mounted as a prime mover as required according to driving conditions.

In automatic transmissions, when the ignition key is turned on, the shift lever cannot be shifted from the parking range unless the brake pedal is depressed. A shift lock device with a key interlock that has a shift lock mechanism that keeps a detent pin, which is a position pin, engaged, and a key interlock mechanism that prevents the ignition key from being removed unless the shift lever is shifted to the parking range. There is something set up.

[0004] Also, the shift lock function has a practical fair 2-
There is one disclosed in Japanese Patent No. 42920. The shift lever device for an automatic transmission for an automobile disclosed in this Publication No. 2-42920 locks the shift lever at a predetermined shift position and cannot be released when the automobile is stopped and the driver is not present. There is something like that.

Furthermore, as disclosed in Japanese Utility Model Publication No. 2-42921, a shift operating device for an automatic transmission is provided with a park sensor that detects the orientation and displacement of a detent pin at a stop position of the detent plate. A position sensor that detects a shift operation of the lever to a stop position and a brake sensor that detects a brake operation are provided, as well as an electromagnetic sensor that is energized to lock the detent pin in the stop position and demagnetized to release the lock. The electromagnetic locking means is excited based on both the position sensor's shift operation detection signal and the park switch's detent pin displacement detection signal, and the park switch's detent pin position detection signal and the brake sensor's detent pin position detection signal. Some were provided with control means for demagnetizing based on each detection signal.

[0006]

[Problems to be Solved by the Invention] In the conventional shift lock device, as shown in FIGS. 3 and 4, when the battery (not shown) is exhausted, the shift lever 110 is locked by the lock mechanism 130. A manual lock release lever 152 for releasing the shift lever 110
It was located nearby. However, there was no provision for allowing the lock release lever 152 to release the lock.

Therefore, the locked state of the shift lever 110 by the locking mechanism 130 is easily released and the shift lever 110 is moved from the parking range to another position, reducing the reliability of the locking mechanism 130. This has the disadvantage of being disadvantageous in practice.

[0008]

[Means for Solving the Problems] Therefore, in order to eliminate the above-mentioned disadvantages, the present invention provides a shift lock device having a lock mechanism for locking the shift operation of the shift lever, in which the shift lever and the lock mechanism are surrounded. A cover portion is provided, and an emergency key cylinder is provided directly on the cover portion, and the end portion of the key cylinder is configured to move the lock mechanism to an unlock position when the key cylinder is rotated in a predetermined direction with an ignition key. It is characterized by the provision of a pressing claw part that enables emergency release.

[0009]

[Operation] According to the invention as described above, when the ignition key is not present, the locking mechanism locks the shift operation of the shift lever, making it impossible to shift the shift lever.

[0010] When the lock mechanism that locks the shift operation of the shift lever is to be released in an emergency, the key cylinder is rotated in a predetermined direction using the ignition key, and the pressing claw provided at the end of the key cylinder is used to release the lock mechanism. The locking mechanism is moved to the unlocked position and the shift lever can be operated.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention. In FIG. 1, 2 is a shift lock device.

The shift mechanism 4 for switching the engagement state of an automatic transmission (not shown) has a bracket 8 protruding from the lower part of the housing 6, and the lower end of the lever shaft 12 of the shift lever 10 is attached to this bracket 8 as a support shaft. (not shown) is rotatably supported. Lever shaft 12 of the shift lever 10
The upper end side of the guide plate 14 is inserted into the guide hole 16 and projects upward. The guide plate 14 has respective shift positions of the shift lever 10, such as a parking shift position (P), a reverse shift position (R), a neutral shift position (N), and a driving shift position (D). The speed shift position (2) and the first speed shift position (L) are displayed sequentially.

A grip (not shown) and a shift knob (not shown) are attached to the upper end of the lever shaft 12 of the shift lever 10, which is inserted through the guide hole (not shown) of the guide plate 14.
has been established. A rod (not shown) is provided within the lever shaft 12 of the shift lever 10 so as to be movable in the axial direction, and a detent pin 16 is attached to the lower end of the rod. This shift lever 10 is connected to an automatic transmission (not shown) via a shift cable 18.

Further, a detent plate 20 is provided above the housing 6 in an upright manner. This detent plate 20 has step openings 22 corresponding to each shift position of the shift lever 10.

The shift lever 10 and the detent plate 20 are provided with a moderation mechanism 24 that gives a sense of moderation to the shift operation of the shift lever 10. The moderation mechanism 24 is
It consists of a resilient engaging body 26 provided on the shift lever 10, and each engagement hole 28 provided in the detent plate 20, with which the resilient engaging body 26 is resiliently engaged at each shift position.

The automatic transmission (not shown) has a shift lever 1
By pushing and releasing the shift knob (not shown) of 0, the detent pin 16 is moved forward and backward via the rod (not shown), and the detent pin 16 is engaged with and disengaged from each step opening 22 of the detent plate 20, and the shift lever By shifting 10 to each of the shift positions P, R, N, D, 2, and L, the engagement state can be switched via the shift cable 18.

Furthermore, the locking mechanism 30 of the locking device 2 includes:
The detent pin 16, which is engaged with either the parking step portion or the neutral step portion, maintains the engaged state by the tip of the plunger 32 that moves forward and backward toward the parking step portion and the neutral step portion. This is to prevent withdrawal.

The shift lever 10 and the lock mechanism 30 are surrounded by a console box 34 which is a cover section.

Furthermore, a console box 34 surrounding the shift lever 10 and the lock mechanism 30 is provided,
An emergency key cylinder 36 is provided directly on the console box 34, and an end portion of the key cylinder 36 is provided with a locking mechanism 30 that moves the locking mechanism 30 to the unlocked position when the key cylinder 36 is rotated in a predetermined direction with the ignition key 38. A pressing pawl portion 40 is provided that can be moved to enable emergency release.

In detail, the console box 34
The key cylinder 3 is located at the lower part, which is the side part of the housing 6.
A hole 42 in which the key cylinder 6 is fixed is provided, and an outer cylinder part 44 of the key cylinder 36 is fixed in the hole 42. A pressing claw portion 40 is provided at an end portion of a rotating portion 46 disposed within this outer cylindrical portion 44 . This pressing claw portion 40 is arranged close to the tip end portion of the plunger 32.

Further, the pressing claw portion 40 is urged in a direction away from the movement space of the plunger 32 by a return spring (not shown).

Next, the operation will be explained.

If the ignition key 38 is not present, the locking mechanism 30 locks the movement of the detent pin 16 that is moved by the shift operation of the shift lever 10, making the shift operation of the shift lever 10 impossible.

At this time, the rotating portion 46 of the key cylinder 36
The pressing claw portion 40 provided at the end portion of the plunger 32 is urged in a direction away from the movement space of the plunger 32 by a return spring (not shown).

Furthermore, when the locking mechanism 30 that locks the movement of the detent pin 16 that is moved by the shift operation of the shift lever 10 is to be urgently released, the ignition key 38 is used to move the rotating portion 46 of the key cylinder 36 in a predetermined direction ( 1) in the direction of the solid line arrow in FIG.
The plunger 32 of the locking mechanism 30 is moved to the unlocked position shown by the dashed line in FIG. 1 by the pressing claw portion 40 provided at the end portion of the shift lever 10, thereby enabling the shifting operation of the shift lever 10.

[0027] Accordingly, the lock mechanism 30 can be unlocked by the ignition key 38, and the lock mechanism 30 can be easily released in an emergency by the ignition key 38, thereby improving the reliability of the lock mechanism 30. This can be improved and is advantageous in practice.

Furthermore, by providing the emergency release key cylinder 36 with the pressing claw portion 40 directly on the console box 34, the number of parts of the shift lock device 2 can be reduced, and costs can be kept low. This is economically advantageous, and the external appearance of the shift lever 10 can be improved.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be modified in various ways.

For example, the configuration was such that the plunger was directly pressed and moved by a pressing claw provided at the end of the rotating part of the key cylinder, but due to space constraints, a combination of links such as a bell crank was used. It is also possible to configure a shift lock device.

[0031]

As described in detail above, according to the present invention, a cover portion surrounding the shift lever and a lock mechanism is provided, an emergency key cylinder is provided directly on the cover portion, and an ignition key cylinder is provided at the end portion of the key cylinder. A pressing pawl is provided that moves the locking mechanism to the unlocking position when the key cylinder is rotated in a predetermined direction with the key, allowing for emergency release, so the unlocking operation of the locking mechanism can be permitted using the ignition key, and The lock mechanism can be easily released in an emergency using the ignition key.
The reliability of the locking mechanism can be improved, which is advantageous in practice. In addition, by providing an emergency release key cylinder with a pressing claw directly on the cover, the number of parts in the shift lock device can be reduced, and costs can be kept low, which is economically advantageous. At the same time, the external appearance of the shift lever part can be improved.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of a shift mechanism according to an embodiment of the invention.

FIG. 2 is a schematic plan view of the shift mechanism.

FIG. 3 is a schematic side view of a shift lock device showing a conventional technique of the present invention.

FIG. 4 is a plan view of the shift mechanism.

[Explanation of symbols]

2 Shift lock device 4 Shift mechanism 10 Shift lever 18 Shift cable 20 Detent plate 30 Lock mechanism 32 Plunger 34 Console box 36 Key cylinder 38 Ignition key 40 Pressing claw part 44 Outer cylinder part 46 Rotating part

Claims (1)

[Claims] 1. A shift lock device having a lock mechanism for locking the shift operation of a shift lever, wherein a cover portion surrounding the shift lever and the lock mechanism is provided, an emergency key cylinder is provided directly on the cover portion, and an emergency key cylinder is provided directly on the cover portion. A shift characterized in that a pressing claw portion is provided at an end portion of the key cylinder to move the locking mechanism to a lock release position and enable emergency release when the key cylinder is rotated in a predetermined direction by an ignition key. locking device.