JPH0535447U - Half-door lock mechanism for A / T car shift device - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the A / T car from starting in the half-door state. [Configuration] A key for releasing the restraint of the detent pin 7 and enabling a shift lever switching operation when the shift lever 5 of an A / T vehicle is in the parking position, the engine is started, and the brake pedal 32 is depressed. An actuator that is electrically connected to the lock cam 15 of the interlock device 10 between the ignition key switch 27 and the half door detection switch, and operates when the half door detection switch is on when the engine is started to restrain the lock cam. 12 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a half-door lock mechanism for a shift device of an A / T vehicle.

[0002]

[Prior Art]

 In a vehicle equipped with an automatic transmission (hereinafter referred to as "A / T vehicle"), the shift device is provided with an erroneous operation prevention device such as a key interlock device and a shift lock device in order to prevent erroneous operation. The key interlock device is a device that prevents the key from coming off from the ignition key switch when the shift lever is not in the parking (hereinafter "P") position. When the shift lever is not in the P position, When the key lock cam that restrains the detent pin rotates, the hook of the key lock mechanism built into the key cylinder operates via the key interlock cable.When the key is removed in this state, the hook The key cylinder interferes with the key cylinder so that it cannot rotate to the key lock position and the key cannot be removed.

Further, the shift lock device operates the shift lever from the P position to another position such as a drive (hereinafter referred to as “D”) position and a reverse (hereinafter referred to as “R”) position unless the brake pedal is depressed. The key lock cam of the key quinta lock device prevents the detent pin from moving downward when (1) the shift lever is in the P position (when the brake pedal is not depressed). It is locked by the pedal lock cam of the shift lock device and the shift lever is constrained by the detent plate to prevent the shift change. (2) When shifting, press the brake pedal to lock the pedal through the shift lock cable. The cam is rotated, which releases the restraint of the key lock cam and (3) When the key of the ignition key switch is in the locked position or removed, the key lock cam is restrained by the pedal lock cam by depressing the brake pedal. Even if it is released, the key lock cam is restrained via the key interlock cable, so the shift lever is restrained by the detent plate and the shift cannot be changed.

Most current vehicles are equipped with a half-door indicator to detect the half-door state and notify the driver. The driver senses that the vehicle is in the half-door state when the half-door indicator is on, and does not start the vehicle until the door is completely closed.

[0005]

[Problems to be solved by the device]

 However, the current half-door indicator may be overlooked because it simply indicates that the door is in the half-door state by a lamp, and there is a risk that the vehicle may start in the half-door state. .. The present invention has been made in view of the above-mentioned points. Even if the engine is started during parking and the brake pedal is depressed, the shift lever cannot be switched from the parking position to another position when the door is half-opened. An object of the present invention is to provide a half-door lock mechanism for an A / T vehicle shift device that prevents the vehicle from starting in this state.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, according to the present invention, when the shift lever of the A / T vehicle is in the parking position, the engine is started, and the brake pedal is depressed, the restraint of the content pin is released to shift the shift. It is electrically connected to the lock cam of the key interlock device that enables the operation of the lever, and is electrically connected between the ignition key switch and the half door detection switch, and operates when the half door detection switch is turned on when the engine is started. And an actuator for restraining the lock cam is provided.

[0007]

When the shift lever is in the parking position, the engine is started, and the brake pedal is depressed, when the half door detection switch detects the half door and the switch is turned on, the actuator operates and restrains the lock cam. Then, the detent pin is restrained, and the switching operation of the shift lever from the parking position to another position is disabled. This prevents the vehicle from starting in the half-door state.

[0008]

【Example】

 An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. 1 and 2, the shift device 1 of an A / T vehicle has a lower end rotatable to a frame 2 via a shaft 3 and rotatable with respect to a detent plate 4 fixed to the frame 2. A shaft-supported shift lever 5, a selector handle 6 attached to the upper end of the shift lever 5, an axially slidable fit in the shift lever 5, a detent pin 7 fixed to the lower end, and a push button on the upper end. 8 is provided, and the push rod 9 and the like are provided.

The frame 2 is provided with a key interlock device 10, a shift lock device 11, and a half-door lock actuator 12. The key lock cam 15 of the key interlock device 10 restricts the movement of the detent pin 7 of the shift lever 5, and the pedal lock cam 16 of the shift lock device 11 restricts the rotation of the key lock cam 15.

The key lock cam 15 is rotatably supported by the frame 2 via a shaft 20, has a notch 15 a with which the detent pin 7 engages at substantially the center of the rear end, and has a pin 21 at the upper end on the front side. Is planted, and a locking portion 15b is provided at the lower end on the front side. The lower end of the pedal lock cam 16 is rotatably supported by the frame 2 via a shaft 22, and the lock pin 23 is engageable with the locking portion 15b of the key lock cam 15 at the upper front end thereof. Pins 24 are planted at the upper ends of the respective ends.

The key interlock cable 25 has one end fixed to the pin 21 of the key lock cam 15 and the other end built in the key cylinder of the ignition key switch 27 mounted on the handle column 26. It is fixed to the hook 28 of the. The shift lock cable 30 has one end fixed to the pin 24 of the pedal lock cam 16 and the other end connected to the brake pedal 32 via a link mechanism 31.

The actuator 12 is composed of, for example, a solenoid (hereinafter referred to as “solenoid 12”), and the solenoid 12 is located near the rear lower end of the key lock cam 15 at a right angle to the key lock cam 15 and slightly. They are arranged at various intervals and are fixed to the frame 2 via brackets (not shown). The plunger 17 of the solenoid 12 can be inserted and removed at a right angle to the lower rear side of the key lock cam 15, and when the solenoid 12 is deenergized, the plunger 17 is pulled back into the solenoid 12 by the spring force so that the plunger 12 of the key lock cam 15 can be removed. The key lock cam 15 is separated from the key lock cam 15 so that the key lock cam 15 can be rotated. When the key lock cam 15 is biased, the key lock cam 15 is pushed out against the spring force and enters the rear lower side of the key lock cam 15, and the key lock cam 15 is locked and cannot rotate. And

As shown in FIG. 3, one end of the solenoid 12 is grounded to the ignition key switch 27 and the other end is grounded via the half door detection switch 35. A buzzer 13 for alarm is connected in parallel to the solenoid 12. The half-door detection switch 35 is turned on when the door (not shown) is open or in the half-door state, and is turned off when the door is completely closed. The solenoid 12 is energized when the ignition key switch 23 is switched on and the half door detection switch 35 is on, and when either one of the ignition key switch 27 and the half door detection switch 35 is off. Be depressed.

The operation will be described below. When the shift lever 5 is in the P position and the brake pedal 32 is not depressed, the shift lock device 11 causes the pedal lock cam 16 to rotate clockwise as shown in FIG. 2 by the spring force of a spring (not shown). The lock pin 23 enters the upper side of the locking portion 15b of the key lock cam 15 and prohibits the key lock cam 15 from rotating clockwise. Therefore, the detent pin 7 is engaged with and constrained by the notch 15a of the key lock cam 15, the push button 8 of the selector handle 6 cannot be pushed, and the shift lever 5 is operated from the P position to another position. Nothing comes out.

When the shift lever 5 is in the P position and the brake pedal 32 is depressed, the pedal lock cam 16 is rotated counterclockwise in FIG. 2 via the shift lock cable 30, and the lock pin 23 is key-locked. The key lock cam 15 is released from the locking portion 15b of the cam 15 and the constraint of the key lock cam 15 is released. Further, the ignition key switch 27 of the key interlock device 10 cannot be pulled out because the key interlock mechanism cannot turn the key to the lock position when the shift lever 5 is not in the P position. When the ignition key switch 27 is in the key lock position or when it is pulled out, the key interlock mechanism holds the key lock cam 15 in the state of FIG. 2 via the key interlock cable 25, and the key lock cam 15 rotates clockwise. prohibited. Therefore, the detent pin 7 is constrained and the push button 8 cannot be pressed, and the shift lever 5 cannot be switched from the P position to another position.

When the ignition key switch 27 is not in the locked position, the key interlock mechanism is released, and the lock of the key lock cam 15 by the key interlock mechanism is released. However, when the shift lever 5 is in the P position, the key lock cam 15 is constrained by the pedal lock cam 16, the detent pin 7 is constrained and the push button 8 cannot be pushed, and the shift lever 5 is Switching operation from the P position to another D position, for example, cannot be performed.

Now, when the shift lever 5 is in the P position and the ignition key switch 27 is switched on, the engine starts, and when the brake pedal 32 is then depressed, the pedal lock cam 16 moves counterclockwise in FIG. The lock of the key lock cam 15 is released by rotating to. At this time, when the door of the vehicle is in the half-door state, the half-door detection switch 35 (FIG. 3) is switched on, the solenoid 12 is energized, and the plunger 17 is pushed out as shown in FIG. It enters the lower side of the key lock cam 15 and restrains the key lock cam 15 to prohibit its rotation.

As a result, the detent pin 7 is constrained by the key lock cam 15, the push button 8 of the selector handle 6 cannot be pressed, and the shift lever 5 cannot switch from the P position to the D position. It At the same time, the buzzer 13 is activated and an alarm is issued to notify the driver and other passengers that the door of the vehicle is in a half-door state. Then, the occupant hears the alarm and recloses the door.

When the door is completely closed, the half door detection switch 35 is switched off, the solenoid 12 is deenergized, the plunger 17 is pulled in by the spring force of the spring, and the restraint of the key lock cam 15 is released. .. As a result, the detent pin 7 can be moved downward while rotating the key lock cam 15 clockwise, and when the push button 8 of the selector handle 6 is pressed, the push rod 9 is moved downward and the detent pin 7 and the detent plate are moved. The engagement with 4 is released, and the shift lever 5 can be rotated. That is, the shift lever 5 can be switched from the P position to another position, for example, the D position, and the vehicle can be started.

A hole is formed at an appropriate position of the key lock cam 15, and the plunger 17 of the solenoid 12 is pushed out and fitted into the hole when the door is half opened, so that the key lock cam 15 is restrained. Good. Also, a seat belt switch is connected in parallel to the half door switch 35, and when the seat belt is not worn even when the door is completely closed, the solenoid 12 is energized to restrain the key lock cam 15 and shift. You may make it impossible to switch the lever 5 from the P position to another position.

[0021]

As described above, according to the present invention, even if the engine is started, when the door is in the half-door state, the shift lever cannot be switched from the parking position to the other position, and in the half-door state. This has the effect of preventing the vehicle from starting.

[Brief description of drawings]

FIG. 1 A / A to which a half-door lock mechanism according to the present invention is applied
It is a block diagram which shows one Example of the shift device of a T vehicle, a key interlock device, and a shift lock device.

FIG. 2 is an enlarged view of a main part of the key interlock device and the shift lock device of FIG.

FIG. 3 is a circuit diagram showing an embodiment of a continuation mode of the half-door lock solenoid of FIG.

[Explanation of symbols]

 1 shift device 2 frame 4 detent plate 5 shift lever 7 detent pin 10 key interlock device 11 shift lock device 12 solenoid 13 buzzer 15 key lock cam 16 pedal lock cam 17 plunger 27 ignition key switch 32 brake pedal 35 half door detection switch

Claims (1)

[Scope of utility model registration request] 1. A key interface for releasing the restraint of a detent pin and enabling the operation of the shift lever when the shift lever of an A / T vehicle is in the parking position, the engine is started, and the brake pedal is depressed. The lock cam of the lock device is provided with an actuator electrically connected between the ignition key switch and the half door detection switch, which is activated when the half door detection switch is ON when the engine is started to restrain the lock cam. The half-door lock mechanism of the shift device of the A / T car, which is characterized by that.