JPH09291743A - Theft preventing device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a theft preventing device in which a door can not be opened even if the door key lock device of a vehicle is broken down, in a simple constitution and at a low price. SOLUTION: This door of a vehicle is constituted of a checker arm 2 rotationally movably fitted to a vehicle body 20 and a checker main body 3 fitted in the door 30, and provided with a door checker 1 moderately holding the door 30 at a fixed opening. In this case, this device is constituted so that the checker arm 2 is provided with a lock hole 22, a door checker lock mechanism 7 composed of a lock member 8, a base plate 9, and a reversal spring 10 is fitted in the door 30, and in the full closing state of the door, an actuator 14 is operated relating to locking and unlocking by the key of a door key lock device, so that the lock member 8 is slided to a lock position where the member 8 is fittedly engaged with the lock hole 22 so as to restrain rotational movement of the checker arm 2, and to an unlock position where the member 8 is slipped out from the lock hole 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle antitheft device.

[0002]

2. Description of the Related Art For preventing vehicle theft, a key lock device for a door detects a theft when a door is opened by a keyless lock and a door is opened under a predetermined condition to judge that the door is stolen and sends a theft detection signal. Means and at least one signal when the theft detection signal is sent from the theft detection means and when the ACC signal of the ignition switch is sent without unlocking the door with the key. A device equipped with a starter-cutting means for outputting a signal so that an alarm is issued at least when it is determined that the theft has occurred (Actual Kaisho 6
It is determined whether the control unit is stolen from the information such as the open / closed state of the door, the presence / absence of a key inserted in the ignition key cylinder, and the presence / absence of a key inserted in the key cylinder of the door. Conventionally, there has been developed a device (for example, Japanese Laid-Open Patent Publication No. 3-183880) which prohibits the unlocking operation of the actuator for locking and unlocking the door key lock device when it is determined to be theft.

[0003]

The above-mentioned conventional anti-theft device requires complicated judgment functions and control functions. Therefore, the device itself becomes expensive, and it is used in some high-grade luxury cars. Can be applied, but has a problem that it is difficult to be adopted in a general vehicle. In addition, since the conventional anti-theft device often constitutes a system by the latch part of the door key lock device originally installed in the door, it is easily destroyed together with the door key lock device by the act of vandalism from the outside. There is a problem that the purpose of prevention may not be achieved.

[0004] An object of the present invention is to solve the above conventional problems.

[0005]

SUMMARY OF THE INVENTION The present invention uses a conventionally known door checker that holds a door with a moderation at a plurality of opening positions, and engages with a checker arm that is a constituent member of the door checker. A door checker lock mechanism for restraining the rotation of the checker arm is provided, and is related to the locking and unlocking operation by the key of the door key lock device or the locking and unlocking operation by the signal transmission of the transmitter of the remote control door key lock device. Then, the door checker lock mechanism is configured to be locked and unlocked. As described above, the door checker that has been generally equipped in the door of the vehicle in the past is used, and the door checker lock mechanism that locks the rotation of the checker arm located away from the door key lock device is attached to the door checker, which is extremely simple. Depending on the configuration, unless the door key lock device is unlocked by using the key or the transmitter of the remote control type door key lock device, the unlocking operation of the door checker lock mechanism is not performed, and even if the door key lock device is broken, the door is locked. An inexpensive antitheft device for a vehicle that cannot be opened can be obtained.

Further, when the door checker lock device is in a locked state, a means for cutting off the power supply circuit to the starter motor or the ignition device of the engine so that the engine cannot be operated even if the ignition key switch is turned on. Even if the ignition key switch can be turned on by some unauthorized means by this, the engine cannot be operated and the vehicle cannot run by itself. Become.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention.

In FIG. 1, 1 is a door checker,
As is well known in the art, the door checker 1 includes a vehicle body member (for example, a pillar) 20 to which a door hinge is attached, a checker arm 2 attached by a shaft 21 so as to be rotatable in a door opening / closing direction, and a door 30. It is a combination with the checker body 3 mounted inside. Checker arm 2
Has a structure in which recessed portions 2a and 2b are formed on the upper and lower surfaces thereof, and a stopper 2c is fixed to a tip end portion by a stopper pin 2d. The checker body 3 includes a pair of upper and lower engaging members 4 and 4 made of hard synthetic resin that slide on the upper and lower surfaces of the checker arm 2, and a direction in which the engaging members 4 and 4 are pressed against the upper and lower surfaces of the checker arm 2. And a housing 6 having a through hole 6a for accommodating the checker arm in the central portion for accommodating and incorporating the engaging members 4, 4 and the spring members 5, 5 therein. It

The upper and lower surfaces of the checker arm 2 inserted through the through hole 6a are assembled with a pair of upper and lower engaging members 4 and 4 sandwiched therebetween, and the checker arm 2 rotates as the door is opened. While the engaging members 4 and 4 slide on the upper and lower surfaces of the checker arm 2, the engaging members 4 and 4 in the checker body 3 fit into the recessed portion 2a of the checker arm 2 at a certain opening position of the door. If the opening position is held moderately and a force is further applied in the direction to open the door, the engaging members 4, 4
Bends the spring members 5 and 5 to get over the recessed portion 2a and fit into the next recessed portion 2b at the fully opened position of the door, and further stoppers 2c hit the housing 6 for further rotation in the door opening direction. When the door is closed, the door is kept fully open with a moderation.

The above-mentioned door checker 1 itself is the same as the one generally used and publicly known, but the present invention utilizes the conventionally known door checker 1 to rotate the checker arm 2. A door checker lock mechanism 7 for restraining movement is provided, and a key lock device (which is well known in the art and therefore not shown and described in detail here) is originally equipped with a door checker lock mechanism 7 for locking and unlocking. It is configured to operate in association with the operation.

That is, as shown in FIG. 1, the door checker lock mechanism 7 includes a lock member 8 made of a rod material and a door 3.
Holes 9a, 9b and 9c for supporting the lock member 8 slidably in the axial direction (vertical direction in the figure) having a guide groove portion 91 into which the front end portion of the door checker 2 is fitted in the fully closed state of 0.
A base plate 9 having a door inner panel and fixed to the door inner panel with bolts, a reversing spring 10 for holding the lock member 8 in the unlock position and the lock position with respect to the base plate 9, and the lock member 8 in the lock position. And an actuator 14 such as a solenoid device or an electric motor that operates to an unlock position. The lock member 8 is provided with stopper pins 8a and 8b for positioning the unlock position and the lock position.

The door checker lock mechanism 7 includes the door 3
In the fully closed state of 0, the tip portion of the checker arm 2 is fitted into the guide groove portion 91 of the base plate 9, and the center of the lock hole 22 formed in the tip portion of the checker arm 2 is the holes 9a, 9b and 9c of the base plate 9. The door inner panel is positioned so as to coincide with a line connecting the centers of the doors, and is fixed to the door inner panel with bolts or the like.

FIG. 2 is a diagram showing a second embodiment of the present invention, and FIG. 1 shows an example in which the door checker lock mechanism 7 is configured as an independent assembly separate from the checker body 3. On the other hand, in this example, the door checker lock mechanism 7
1 shows an example in which the checker body 3 is integrally assembled.

That is, inside the housing 6 of the checker body 3, there are provided a checker portion 61 accommodating a pair of engaging members 4, 4 and spring members 5, 5 and a lock portion 62 incorporating the door checker lock mechanism 7. The chamber is divided into two chambers by a partition plate 6b, and a pair of guide members 91 and 92 are fixed in the lock portion 62 with the checker arm 2 interposed therebetween.
Guide portions 91a, 92a and the hole 62a of the housing 6
The lock member 8 made of a rod material is slidably fitted and supported in the axial direction, and the reversing spring 10 is provided between the housing 6 and the lock member 8. This figure 2
In the above, the example in which the actuator 14 is attached to the door inner panel separately from the checker body 3 is shown, but the actuator 14 may also be attached to the housing 6 of the checker body 3.

In the example of FIG. 2, the lock hole 22 of the checker arm 2 is provided at a position closer to the shaft 21 than the recessed portion 2a, and the lock holes 22 are provided with the engaging members 4 and 4 as the door is opened and closed. Although the sliding members slide, the engaging members 4 and 4 slide on the sliding surfaces on both sides of the locking holes 22, so that the locking holes 22 affect the sliding operation of the engaging members 4 and 4. There is nothing to give.

2, the configuration other than the above is the same as that shown in FIG. 1, and the same reference numerals as those in FIG. 1 represent the same parts as those in FIG.

The operation of the door checker lock mechanism 7 shown in FIGS. 1 and 2 will be described with reference to FIG.

In FIG. 2, 11 is a battery, 12 is a circuit switching device, 13 is a door key lock switch, 14 is an actuator for locking and unlocking the lock member 8 of the door checker lock mechanism 7, and 15 is a door opening / closing switch. Is.

The circuit switching device 12 includes an ignition circuit a from the battery 11 to an engine starter motor drive circuit and / or an engine ignition device via an ignition key switch, a battery 11 to a key lock switch 13, an actuator 14 and a door. A device for switching the door checker lock circuit b to the ground through the open / close switch 15. When the ignition key switch is on, the door checker lock circuit b is turned off, and when the door checker lock circuit b is in the locked state. Is composed of, for example, a relay circuit having a function of keeping the ignition circuit a in the off state and incapable of operating the engine.

The door key lock switch 13 is a switch which operates when a key lock device conventionally installed in a door is locked (locked) and unlocked (unlocked) using a key.

The door opening / closing switch 15 is a switch for detecting the opening / closing of the door and is turned on when the door is closed and turned off when the door is opened.

In the above, when the ignition key switch is turned off, the passenger dismounts, the door is closed (the door opening / closing switch 15 is on), and the door key lock device is locked using the key, the key lock switch 13 becomes the lock side and the battery 11 From the circuit switching device 12, the lock side of the key lock switch 13, the actuator 14, the door opening / closing switch 15 to the ground, the door checker lock circuit b is closed, and a current flows in the lock direction in the actuator 14 to lock the lock member 8. 1 and 2, actuate downwards,
The lock member 8 penetrates the lock hole 22 of the checker arm 2 and the hole 9c at the lower end or the guide portion 92a of the lower guide member 92.
And the door checker lock mechanism 7 is locked. In the locked state of the door checker lock mechanism 7,
Since the rotation of the checker arm 2 is restrained, the door cannot be opened even if the door key lock device is broken.

In the locked state of the door checker lock mechanism 7, even if the door key lock device can be unlocked by operating the inner lock knob from the passenger compartment by entering the vehicle by some unauthorized method, the door key lock device can be unlocked by using the key. Since the key lock switch 13 does not switch to the unlock side unless it is locked, the circuit switching device 12 keeps the ignition circuit a in the off state, the engine cannot be operated, and the vehicle is not self-propelled. It will be possible.

When the passenger unlocks the door key lock device from the outside of the door by using the key, the key lock switch 13 is switched to the unlock side, a current flows in the unlock direction in the actuator 14, and the door checker lock mechanism 7 operates. When the lock member 8 is actuated upward in FIGS. 1 and 2, the lock member 8 is unlocked from the lock hole 22 of the checker arm 2. In this unlocked state, the checker arm 2
The door can be freely opened because it can rotate about the shaft 21. Also, the key lock switch 13 has been switched to the unlock side, so open the door and board
When the ignition key switch is turned on, the ignition circuit a is turned on and the engine can be operated.

FIG. 4 shows an example in which the present invention is applied to a vehicle equipped with a remote control type door key lock device for remotely controlling locking and unlocking of the vehicle door key lock device by infrared rays or radio waves.

In FIG. 4, 101 is a transmitter for transmitting an infrared (or radio wave) signal by pressing a transmission switch, and 102 is a receiver for receiving the signal emitted by the transmitter 101, which is mounted on the door or body of the vehicle. It is installed. 10
Reference numeral 3 denotes a control circuit, which when the receiver 102 receives a signal, issues a signal to the control circuit 103, and the control circuit 103 issues a lock command signal or an unlock command signal based on the signal to drive the actuator drive circuit 104. The door lock actuator 105 such as an electric motor or a solenoid device provided in the door is operated, and the door lock actuator 105 is operated to lock or unlock the door key lock device. Reference numeral 106 denotes a key lock switch for detecting lock / unlock operation of the door lock actuator 105.
The unlock detection signal is input to the control circuit 103, and the control circuit 103 recognizes by the signal of the key lock switch 106 whether the key lock device of the door is in the locked state or the unlocked state, and stores it. Next, when a reception signal is input from the receiver 102, an unlock command signal is issued to the actuator drive circuit 104 in the locked state and a lock command signal is issued in the unlocked state until then.

As described above, a remote control type door key lock device for a vehicle, which can remotely control locking / unlocking of the door key lock device by pressing the transmission switch of the transmitter 101 at a position away from the vehicle, has been conventionally known. .

In the present invention, in the above remote control type door key lock device, the actuator 14 of the door checker lock mechanism 7 is operated and locked by the output of the actuator drive circuit 104 based on the lock command signal and the unlock command signal of the control circuit 103. The member 8 is configured to be locked and unlocked.

As described above, when the door key lock device is locked by the signal from the transmitter 101, the door checker lock mechanism 7 is also locked at the same time, and even if the door key lock device is broken, the door cannot be opened.
When the door key lock device is unlocked by the signal from the transmitter 101, the door checker lock mechanism 7 is also unlocked, and the door can be freely opened.

Also in the case of the example of FIG. 4, similarly to the case of FIG. 3, by providing the circuit switching device 12 for turning off the ignition circuit a when the door checker lock mechanism 7 is in the locked state, Even if the ignition key switch is turned on by entering the vehicle interior by some illegal means, the engine does not operate, and the vehicle cannot be self-propelled.

Although FIGS. 1 and 2 show an example in which the recessed portions 2a and 2b are provided on the upper and lower surfaces of the checker arm 2, the recessed portions are provided on the left and right end surfaces of the checker arm 2.
The pair of left and right engaging members of the checker body is the checker arm 2
It may be a door checker in which the left and right end surfaces of the roller are slidable, and instead of the illustrated hard synthetic resin engaging members 4 and 4, a pair of rollers are used as the engaging members, and the rollers are the checker arms. The upper and lower surfaces or the left and right end surfaces of 2 may be rolled, and the spring members 5 and 5 may be coil springs or leaf springs. It is applicable to door checkers. Further, in the illustrated embodiment, the checker arm is attached to the vehicle body side,
Although an example in which the checker body and the door checker lock mechanism are provided on the door side is shown, conversely, the checker arm may be attached to the door side, and the checker body and the door checker lock mechanism may be provided on the vehicle body side. Also has the same operation and effect as above.

[0033]

As described above, according to the present invention, a checker arm rotatably attached to a vehicle body side or a door side is utilized by utilizing a door checker which has been conventionally generally mounted on a vehicle door. By constructing the door checker lock mechanism with a simple structure that only provides a member to lock inside the door or on the vehicle body side, it is applicable to not only high-grade vehicles but also popular general vehicles. A prevention system can be provided.

Further, since the locking and unlocking of the door checker lock mechanism is interlocked with the locking and unlocking by the signal transmission of the key of the door key lock device or the transmitter, the door checker lock mechanism hinders the normal getting on and off. There is nothing.

Further, when the door checker lock mechanism is in the locked state, a means for turning off the ignition circuit from the power source to the starter motor of the engine or the ignition device via the ignition key switch is provided. Does not unlock the door key lock device by transmitting a signal from the transmitter, and even if the ignition key switch is turned on by entering the vehicle interior by some unauthorized means, the engine does not operate and the vehicle cannot run on its own.

As described above, the present invention can obtain a great effect in preventing the theft of a vehicle.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention, and is a subordinate sectional view of a main part of a door checker lock mechanism, showing a state in which a door is almost fully opened.

FIG. 2 shows a second embodiment of the present invention, and is a subordinate sectional view of a main part of a door checker lock mechanism, showing a state in which a door is almost fully opened.

FIG. 3 is a circuit diagram showing an example of a drive circuit of an actuator for operating the door checker lock mechanism shown in FIGS. 1 and 2.

FIG. 4 is a block diagram showing another example of the drive circuit of the actuator for operating the door checker lock mechanism shown in FIGS. 1 and 2.

[Explanation of symbols]

 1 Door Checker 2 Checker Arm 2a Recess 2b Recess 2c Stopper 3 Checker Main Body 4 Engagement Member 5 Spring Member 6 Housing 7 Door Checker Lock Mechanism 8 Lock Member 9 Base Plate 10 Reversing Spring 11 Battery 12 Circuit Switching Device 13 Key Lock Switch 14 Actuator 15 Door open / close switch 20 Body member 21 Shaft 22 Lock hole 30 Door 101 Transmitter 102 Receiver 103 Control circuit 104 Actuator drive circuit 105 Door lock actuator 106 Key lock switch

Claims (5)

[Claims] 1. A checker arm having a base end portion pivotally attached to either one of a vehicle body member side and a door side so as to be rotatable in a door opening / closing direction, and a checker arm attached to the other one of the vehicle body member side and the door side. The checker body includes a pair of engaging members that slides or rolls while sandwiching the checker arm and spring-supported in the housing, and the checker arm rotates according to opening and closing of the door. The engaging member slides or rolls on the checker arm, and the engaging member fits into the recessed portion of the checker arm at a predetermined opening position of the door, so that the door is moderately held at the predetermined opening position. In a vehicle equipped with a door checker, the door checker lock machine engages with the checker arm and locks the checker arm in association with the locking operation of the door key lock device. An antitheft device for a vehicle, which is provided with a structure. 2. The door checker lock device according to claim 1 is movable between a lock position fitted into a lock hole provided in a checker arm and an unlock position separated from the lock hole of the checker arm. An anti-theft device for a vehicle, comprising: a lock member that is attached and supported in a door or a vehicle body member, and an actuator that moves the lock member. 3. The actuator according to claim 2 is actuated by a signal of a key lock switch that detects locking and unlocking by a key of a key lock device of a door, and is locked by a lock detection signal of the key lock switch. An antitheft device for a vehicle, wherein a member is operated to a lock position, and a lock member is operated to an unlock position by an unlock detection signal of a key lock switch. 4. A receiver for receiving signals such as infrared rays and radio waves emitted from a transmitter, a control circuit for issuing a locking or unlocking command based on a signal received by the receiver, and an operation based on a command from the control circuit. In a vehicle equipped with a remote control type door key lock device comprising a door lock actuator for locking or unlocking the door key lock device, the actuator according to claim 2 is the door key lock device according to the remote control type door key lock device. An antitheft device for a vehicle, characterized in that a lock member is operated to a locked position or an unlocked position based on locking or unlocking operation. 5. The anti-theft device for a vehicle according to claim 1, wherein when the door checker lock mechanism is in a locked state, a power supply circuit to the starter motor or the ignition device of the engine is cut off. An antitheft device for a vehicle, which is provided with means for preventing the engine from being operated even when an ignition key switch is turned on.