JPH0526683U - Anti-theft device for vehicle - Google Patents

Abstract

(57) [Abstract] [Purpose] Even if you forget to remove the ignition key, prevent others from driving the vehicle. [Construction] The receiver 14 outputs a lock signal or an unlock signal according to a radio signal from the transmitter 13.
The door lock control device 15 locks the door when the lock signal is input, and unlocks the door when the unlock signal is input. The key interlock control device 16 energizes the solenoid 10 when a lock signal is input, and disconnects the solenoid 10 when an unlock signal is input. The solenoid 10 regulates the rotation operation of the ignition key in the energized state. Therefore, when the door is locked by remote control, the rotation operation of the ignition key is prohibited.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an anti-theft device for a vehicle, which is equipped with a remote door lock device and can control the rotation operation of an ignition key by a key interlock device.

[0002]

[Prior Art]

 Conventionally, in vehicles equipped with a remote door lock device, the door is locked and unlocked based on the transmission signal from the transmitter, and the door is locked and unlocked without using the ignition key. It can be performed.

[0003]

[Problems to be solved by the device]

 By the way, in the case of the above-mentioned conventional example, since the door can be locked by operating the transmitter, the door may be locked by the transmitter while the ignition key is attached to the cylinder lock of the steering wheel when getting off the vehicle. In such a case, if the user forgets to close the door window or the door locking device is broken, there is a problem that another person can drive the vehicle.

The present invention has been made in view of the above circumstances, and an object thereof is to prevent the vehicle from being stolen by another person even if the driver forgets to pull out the ignition key and gets off the vehicle. To provide the equipment.

[0005]

[Means for Solving the Problems]

 The anti-theft device for a vehicle of the present invention is provided with a start prohibiting means capable of switching between a prohibition state in which the rotation operation of the ignition key to the start position is prohibited and a permission state in which the rotation operation is permitted. Control means for switching the start prohibition means to the prohibition state when the door is locked according to the transmission signal from the transmitter, and for switching the start prohibition means to the permission state when the door is unlocked by the remote door lock device. Is provided.

[0006]

[Action]

 If the transmitter is operated and the door is locked by the remote door lock device when getting off the vehicle, the control means switches the start prohibition means to the prohibition state. As a result, the start prohibiting means prohibits the rotation operation of the ignition key to the start position, so even if the ignition key is forgotten, another person cannot start the engine and start the vehicle. Can not.

Further, when the transmitter is operated to get on the vehicle and the door is unlocked by the remote door lock device, the control device switches the start prohibiting means to the permitted state. As a result, the prohibition state of the rotation operation of the ignition key to the start position by the start prohibiting means is released, so that the engine can be started by rotating the ignition key.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 2 showing the key interlock device, the key interlock device 1 is attached to a steering column (not shown). This key interlock device 1 is provided with a rotor 4 that rotates in response to an operation of an ignition key 3 inserted in a cylinder lock 2, and at the same time, the rotor 4 has a first cam 5 and a second cam. 6 are integrally provided. In this case, a switch 7 for detecting the rotational position of the rotor 4 is fixed to the key interlock device 1, and a detection signal from the switch 7 is output from the connector 8. Further, the lock bar 9 is disposed so as to be engaged with the second cam 6, so that the lock bar 9 projects and engages with a steering shaft (not shown) in accordance with the rotation of the second cam 6. It has become.

Further, the key interlock device 1 is provided with a solenoid 10, which is adapted to project the lock pin 11 to the rotation locus of the first cam 5 in the energized state. In this case, the lock pin 11 is moved downward in the figure by the tension coil spring 10a when the power is cut off. The first cam 5 corresponds to the protruding position of the lock pin 11 of the solenoid 10 when the ignition key 3 is in the accessory position. The first cam 5 and the solenoid 10 constitute a start prohibiting means.

In FIG. 1, which schematically shows the entire circuit, the remote door lock device 12 includes a transmitter 13 and a receiver 14. That is, the transmitter 13 transmits a wireless signal indicating whether the door is locked or unlocked according to the operated state. Further, the receiver 14 is provided in the vehicle, which receives a wireless signal from the transmitter 13 and sends an electric signal of a lock signal or an unlock signal to the door lock control device 15 in response to the wireless signal. It is designed to output. In this case, the door lock control device 15 locks the door when a lock signal is input and unlocks the door when an unlock signal is input.

On the other hand, the key interlock control device 16 serving as a control means energizes the solenoid 10 according to the detection state of the shift position sensor 17 provided in a shift lever device (not shown). That is, the key interlock control device 16 energizes the solenoid 10 to move the lock pin 11 in the protruding direction when the shift lever is shifted to a position other than the parking position, and the shift lever is shifted to the parking position. When this happens, the solenoid 10 is cut off and the lock pin 11 can be moved in the exit direction. As a result, the ignition key can be operated to the lock position when the shift lever is operated to the parking position, so that it is possible to prevent an operation error when starting the engine. Here, the key interlock device 16 inputs the lock signal or the unlock signal from the receiver 14. When the lock signal is input, the solenoid 10 is energized and when the unlock signal is input. Turns off the solenoid 10.

Next, the operation of the above configuration will be described. Operate the ignition key 3 to the accessory position to stop the engine. At this time, when the shift lever is located at a shift position other than the parking position, the solenoid 10 is energized by the key interlock device 16, so that the lock pin 11 moves to the first cam as shown in FIG. It projects to the rotation locus of No. 5, and as a result, it is prohibited to operate the ignition key 3 from the off position to the lock position.

When the shift lever is shifted to the parking position, the key interlock device 16 turns off the solenoid 10 according to the detection state of the shift position sensor 17, so that the lock pin 11 rotates the locus of rotation of the first cam 5. After that, the ignition key 3 can be rotated to the lock position.

Now, when the ignition key 3 is rotationally operated to the lock position, the first cam 5 moves to the position shown in FIG. 5 as the ignition key 3 rotates.

When the transmitter 13 is operated to lock the door by remote control when getting off the vehicle, the transmitter 13 transmits a wireless signal indicating that the door is locked. When it receives the wireless signal of, it outputs a lock signal. As a result, the door lock control device 15 locks the door.

At this time, the key interlock control device 16 energizes the solenoid 10 when a lock signal is input from the receiver 14. As a result, the lock pin 11 projects to the rotation locus of the first cam 5, so that the rotation of the first cam 5 and thus the rotor 4 is regulated, and accordingly the rotation operation of the ignition key 3 is regulated. Be done.

On the other hand, when the transmitter 13 is operated to get on the train, the transmitter 13 outputs a radio signal indicating unlocking, and accordingly, the receiver 14 outputs an unlock signal and the door lock. The door is unlocked by the control device 15.

At this time, the key interlock control device 16 turns off the solenoid 10 when the unlock signal is output from the receiver 14. As a result, the lock pin 11 withdraws from the locus of rotation of the first cam 5, so that the rotor 4 and thus the ignition key 3 can be rotated, and the engine can be started.

According to the above configuration, when the door is locked by the remote control when the user forgets to remove the ignition key 3 when getting off the vehicle, the rotation operation of the ignition key 3 is restricted. The ignition key 3 cannot be operated even if the driver forgets to close the window when getting off the vehicle, or if the door locking device is broken. Therefore, unlike the conventional example in which the vehicle can be driven by another person if the ignition key is forgotten to be removed, it is possible to prevent another person from driving the vehicle carelessly.

Further, in the case of the above embodiment, since the key interlock device 2 originally provided in the vehicle is used, it is possible to suppress the cost increase.

In the above embodiment, when the door is locked by the remote control, the ignition key 3 cannot be rotated from the locked position. However, instead of this, the door is locked by the remote control. In this case, the ignition key 3 may be configured so that it cannot be rotated from the current position to the start position.

Further, a key remind switch 18 (see FIG. 1) for detecting the mounting state of the ignition key 3 to the cylinder lock 2 is provided, and the key interlock control device 16 is operated by the key remind switch 18 when the key remind switch 18 is detected. The solenoid 10 may be configured to be turned off or turned off according to the lock signal. In this case, the solenoid 10 is energized only when the ignition key 3 is attached to the cylinder lock 2, so that the durability of the solenoid 10 can be improved.

[0023]

[Effect of the device]

 As is clear from the above description, according to the vehicle antitheft device of the present invention, it is possible to start the ignition key so that it can be switched between a prohibition state in which the rotation operation to the start position is prohibited and a permission state in which the rotation operation is permitted. Providing prohibition means, when the remote door lock device locks the door in response to the transmission signal from the transmitter, when the start prohibition means is switched to the prohibition state and the door is unlocked by the remote door lock device. Is equipped with a control means for switching the start prohibition means to the enable state.When the door is locked by the remote door lock device, the ignition key is prohibited from rotating to the start position, so forget to remove the ignition key. Even when the passenger dismounts due to the vehicle, it is possible to prevent the driving of the vehicle by another person.

[Brief description of drawings]

FIG. 1 is an overall schematic configuration diagram showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a key interlock device.

FIG. 3 is a vertical sectional side view of a main part.

FIG. 4 is a vertical sectional front view of an essential part.

FIG. 5 is a view corresponding to FIG. 4 showing different operating states.

[Explanation of symbols]

1 is a key interlock device, 5 is a first cam (start inhibiting means), 10 is a solenoid (start inhibiting means),
Reference numeral 12 is a remote door lock device, 15 is a door lock control device, and 16 is a key interlock control device (control means).

Claims (1)

[Scope of utility model registration request] 1. A remote door lock device for unlocking and locking a door in response to a transmission signal from a transmitter, wherein a prohibition state and rotation for prohibiting a rotation operation of an ignition key to a start position are provided. A start prohibiting means that is switchable between an operation permitting state and the remote door lock device switches the start inhibiting means to the prohibition state when the remote door lock device locks the door in response to a transmission signal from the transmitter. A vehicle anti-theft device further comprising: a control means for switching the start prohibition means to an enable state when the door is unlocked by the remote door lock device.