KR970008045B1 - A/t shift lock and key interlock device of a/t vehicle - Google Patents

Abstract

A lever shift lock and key interlock apparatus of A/T car having a key box(12) having the first gear part(14) in its circumferential outer surface; a key interlock cable(22) which a sliding member(40) having the second gear part(16) engaged said first gear part(14) is fixed in its one end; a shift lock cable(20) which its one end is fixed to a brake pedal(24); a locking member(38) being moved in vertical directions according to the movement of a detent pin(44) being moved by a push button; a key interlock plunger(28) fixing said locking member(38) by being fixed to other end of said key interlock cable(22) and engaged to a guide groove(50) in outer surface of said locking member(38) and permitting movement of said locking member(38) by being disengaged from said guide groove(50); and a shift lock plunger preventing movement of said locking member(38) by being fixed to other end of said shift lock cable(20) and being engaged to lower surface of said locking member(38) and permitting movement of said locking member(38) by being disengaged from lower surface of said guide groove(50) is disclosed. Thereby, Because of the mechanical operation of the lever shift lock & the key interlock apparatus , the structure becomes simple, costs become down and the design of the indicator becomes easy and the occurrence of noise is prevented.

Description

Lever shift lock and key interlock device for A / T vehicles

1 is a schematic diagram showing the overall configuration of a lever shift lock and key interlock device according to the present invention;

2 is a cross-sectional view showing a restraint state of a lever shift and key interlock device according to the present invention;

3 is a cross-sectional view showing the release state of the lever shift lock and key interlock device according to the present invention;

4 is a schematic diagram showing the configuration of a lever shift lock and key interlock device according to the prior art;

* Explanation of symbols for main parts of the drawings

10 lever lever lock and key interlock device 12 key box

14: first tooth 16: second tooth

18: pedestal 20: shift lock cable

22: Key Interlock Cable 24: Brate Pedal

26: shift lock plunger 28: key interlock plunger

30: housing 32: groove

34: shift lever 36: indicator

38: locking member 40: sliding member

42: Bolt 44: Detent Pin

46 detent plate 48 guide hole

50: Information Home

52: lever shift lock and key interlock device

54 Solenoid 56 Detent Pin

58: plunger 60: shift lever

TECHNICAL FIELD The present invention relates to a lever shift lock and key interlock apparatus, and in particular, it is operated by a cable to simplify the structure, reduce the manufacturing cost, facilitate the design of the indicator, and prevent the occurrence of noise. The lever shift lock and the key to be made are related to the interlock device.

BACKGROUND In automobiles, automatic transmissions are often used in recent years, and the automatic transmissions can be maintained in the parking mode or various non-parking modes by the manual operation of the shift control mechanism. The non-parking mode typically includes R, N, D 2 and one stage. The shift control mechanism includes a shift lever, which may be mounted on the floor or on the steering column.

The shift control mechanism is provided with a lever shift lock and key interlock device, and the lever shift lock and key interlock device is used to ensure that the shift lever is always in the parking position when the key is in the off position, so that the gear shift lever is inadvertently virtual. It is in the pseudo-park position to prevent movement to the R stage by shock or vibration. It also helps to prevent theft of the vehicle.

Referring to US Pat. No. 4,473,141, a typical lever shift lock and key interlock device according to the prior art is described. Referring to FIG. 4, there is shown a schematic diagram showing the configuration of the lever shift lock and key interlock device 50 according to the prior art as described above. In the lever shift lock and key interlock device 50, the plunger 58 actuated by the solenoid 54 ensures that the detent pin 56 is correctly placed in the parking position when the solenoid 54 is not charged. Maintain and retain. When solenoid 54 is charged, plunger 58 is retracted and detent pin 56 is released to allow free operation of shift lever 60. The solenoid 54 is connected in series with the brake switch and the key to cause the plunger 58 to retract when the engine is running and the brake switch is actuated.

However, since the lever shift lock and the key interlock device structured as above are electrically operated in the solenoid type, when the battery is discharged and the power is not supplied, the indicator must be opened and the device must be manually released. An expensive sensing device is needed to detect the release of the pushbutton of the shift lever, and only in the parking position, an expensive sensing device is needed to detect the pushbutton of the shift lever, and the solenoid operates only in the parking position. A control unit, etc., is necessary to In addition, since the means for the manual release must be provided, there is a problem in that the design of the indicator is restricted and noise is generated when the solenoid is operated.

The present invention has been made to solve the problems inherent in the lever shift lock and key interlock device according to the prior art as described above, the object of the present invention is mechanically operated by the cable type to simplify the structure and reduce the manufacturing cost The present invention relates to a lever shift lock and a key interlock device that facilitate design of the indicator and prevent noise generation.

According to the invention, a lever shift lock and a key interlock device are provided; The lever shift lock and key interlock device includes a key interlock cable having a key box having a first tooth portion provided on a circumferential outer surface and a sliding member having a second tooth portion engaged with the first tooth portion of the key Dr. key. A shift lock cable having one end fixed to the brake pedal, a lock member accommodated in the housing and movable up and down in accordance with the movement of the detent pin moved by the operation of the push button, and the other end of the key interlock cable A key interlock plunger fixed to the guide groove provided on the outer surface of the locking member and being fixed to the locking member and being separated from the guide groove to allow movement of the locking member to the other end of the shift lock cable. And engaging the lower surface of the locking member to prevent movement of the locking member. And by being separated from the lower surface of the locking member it characterized in that it comprises a shift lock plunger to allow movement of the locking member.

According to the above characteristics of the present invention, when the key interlock plunger and the shift lock plunger are in the engaged position, downward movement of the locking member is prevented so that the shift lever cannot be moved to another position and the key is turned on and the lock pedal is pressed when the pedal is pressed. The member is moved downward so that the shift lever can be moved to another position, and if the shift lever is located at the P end and the push button is not released, the locking member is kept moved downward so that the key can be pulled out. Since the lever shift lock and the key interlock device according to the present invention are mechanically operated by the cable type, the structure is simple, the manufacturing cost is reduced, and the manual release device is not required, so that the design of the indicator is easy and the noise is prevented. Done.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention, the same reference numerals will be used for the same parts throughout the drawings.

FIG. 1 shows a schematic diagram showing the overall configuration of the lever shift lock and key interlock device according to the present invention, FIG. 2 shows a cross-sectional view showing the restrained state of the lever shift lock and key interlock device, and FIG. A cross-sectional view showing the release state of the lever shift lock and key interlock device is shown.

The lever shift lock and key interlock device 10 according to the present invention includes a shift lock cable 20, a key interlock cable 22, a shift lock plunger 26, a key interlock plunger 28, a housing 30 and a locking member. (38).

The first tooth 14 is fixed to the circumferential outer surface of the key box 12, and a pedestal 18 is provided below the key box 12. A sliding member 40 is placed on the pedestal 18 so as to be slidable. On the upper surface of the slice lamp member 40, a second tooth 16 is engaged with the first tooth 14. When the key is inserted into the key box 12 and turned, the slide lamp member 40 can be slid.

The housing 30 is fixed to the detent plate 46 by the bolt 42 close to the parking position P of the shift lever 34 inside the shift lever assembly. The housing 30 is formed with two guide holes 48 positioned up and down, and the locking member 38 is housed in a right side of the guide hole 48 so as to be movable upward and downward.

A groove 32 is provided in the middle portion of the right end surface of the locking member 38, and the detent pin 44 can be inserted into the groove 32. When the push button (not shown) is pressed while the shift lever 34 is in the parking position, the detent pin 44 can be moved downward, and thus the locking member 38 can also be moved downward. . Reference numeral 36 denotes an indicator provided on the upper surface of the shift lever assembly. Guide grooves 50 are formed in the front and rear surfaces of the middle portion of the locking member 38.

The sliding member 40 is fixed to one end of the key interlock cable 22, and the key interlock plunger 28 is fixed to the other end. One end of the shift lock cable 20 is fixed to the brake pedal 24, and the other end of the shift lock plunger 26 is fixed. The key interlock plunger 28 and the shift lock plunger 26 are each accommodated in two guide holes 48 formed in the housing 30.

The key interlock plunger 28 generally takes the shape of a letter 'c', and remains engaged with the guide groove 50 of the locking member 38 when the key is in the off position, and slides when the key is turned on. As the member 40 is moved, the key interlock cable 22 is pulled so that the key interlock plunger 28 is released from the guide groove 50 of the locking member 38.

The shift lock plunger 26 is positioned on the lower surface of the locking member 38 in the housing 30 in a state where the brake pedal 24 is not stepped on, thereby preventing downward movement of the locking member 38. When the brake pedal 24 is stepped on, the shift lock plunger 26 is released from the lower surface of the locking member 38 while the shift lock cable 20 is pulled out.

Hereinafter, the operation of the shift lock and key interlock device 10 according to the present invention structured as above will be described in detail.

Initially, when the starter key is not turned on and the brake pedal 24 is not pressed, the key interlock plunger 28 remains engaged with the guide groove 50 of the locking member 38 and the shift lock plunger 26 ) Is maintained on the lower surface of the locking member (38). Therefore, in this state, since the detent pin 44 is caught in the groove of the detent plate 46 at the P end and cannot be moved, the shift lever 34 cannot be moved. In this state, when the starter key is not turned on, the locking member 38 cannot be moved downward even when the brake pedal 24 is stepped on, so that the shift lever 34 cannot be moved to another position, and the starter is turned on. It can be seen that the result is similar if the brake pedal 24 is not pressed. Therefore, the locking member 38 can only be moved downward inside the housing 30 by turning on the starting key and pressing the brake pedal 24.

When the starter key is turned on and the brake pedal 24 is pressed, the key interlock plunger 28 and the shift lock plunger 26 are released from the locking member 38, respectively, and the detent pin is pushed when the push button of the shift lever 34 is pressed. As the 44 is moved downward, the locking member 38 is also moved downward, and the shift lever 34 can be moved to another position. Even if the shift lever 34 is moved to another position, the locking member 38 remains moved downward so that the movement of the key interlock plunger 28 and the shift lock plunger 26 is prevented. Therefore, the key cannot be pulled out without moving the shift lever 34 back to the position of the P stage and releasing the push button to move the locking member 38 upward.

According to the configuration as described above of the present invention, when the key interlock plunger 28 and the shift lock plunger 26 are in the engaged position, the downward movement of the locking member 38 is prevented so that the shift lever 34 is in a different position. When the key is turned on and the brake pedal 24 is pressed, the locking member 38 is moved to the disengaged position so that the shift lever 34 can be moved to another position, and the shift lever 34 is again P. If it is located at the stage and does not release the pushbutton, since the locking member 28 is kept moved downward, the key cannot be removed by turning the key, so the lever shift lock and the key interlock device are mechanically operated by the cable type. It is simplified, the manufacturing cost is reduced, and the manual release device is unnecessary, so that the design of the indicator is easy and the noise is prevented.

While the invention has been shown and described with reference to certain preferred embodiments, it will be understood that the invention can be variously modified and modified without departing from the spirit or scope of the invention as set forth in the following claims. Those skilled in the art can easily know that.

Claims (1)

In the lever shift lock and the key interlock device 10, a key box 12 having a first tooth portion 14 provided on a circumferential outer surface, and a first mesh portion 14 engaged with the first tooth portion 14 of the key box 12. The key interlock cable 22 to which the slide lamp member 40 having the two teeth 16 is fixed at one end, the shift lock cable 20 at which one end is fixed to the brake pedal 24, and the inside of the housing 30. The lock member 38 is received and is movable up and down in accordance with the movement of the detent pin 44 by the operation of the pushbutton, the key is fixed to the other end of the interlock cable 22 and the lock member 38 The key interlock plunger 28 which locks the locking member 38 by engaging with the guide groove 50 provided on the outer surface of the c) and permits the movement of the locking member 38 by being separated from the guide groove 50. And is fixed to the other end of the shift lock cable 20 and A shift lock plunger 26 which engages with a lower surface of the locking member 38 to prevent movement of the locking member 38 and is disengaged from the lower surface of the locking member 38 to allow movement of the locking member 38. And a lever shift lock and a key interlock device.