JPH055377A - Selective unlocking type door lock device - Google Patents

Abstract

PURPOSE:To lock and unlock doors for all seats in a car by making it impossible to output an unlocking signal to a driving control device even if a door lock operating member is driven to an unlocking side in the case of the first unlocking operation of a locking and unlocking operation device. CONSTITUTION:When a key cylinder of the door for a driver's seat is operated to an unlocking side, the door is unlocked, a key cylinder switch SW1 is turned ON to start a timer 3 counting time, and a cancel circuit 12 prohibits the operation of a locking and unlocking circuit 11. After that, when the second unlocking operation is made within 30 seconds of setting time of the timer 3, a trigger circuit 4 sends an unlocking signal to a control circuit 6. Then, when an unlocking relay Ry 2 is turned ON for one second by the circuit 6, power is supplied to door locking actuators M1-M4 for all seats from a power supply BAT. The actuators M1-M4 are driven to the unlocking side to unlock doors for all seats. In addition, when time of the timer 3 is up, a signal is sent to a reset circuit 5, and the circuit 5 resets a counter 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a selective unlocking type door lock device capable of unlocking by selectively selecting the doors of its own seat and the doors of all seats.

[0002]

2. Description of the Related Art When a key cylinder provided on the outside of a door is operated to the unlock side, the door of its own seat is unlocked, and when it is operated again to the unlock side within a predetermined time, all doors of the passenger seat and the rear seats A selective unlocking type door lock device that is unlocked is known.

FIG. 8 (a) is a view showing a key cylinder provided on a driver's door, FIG. 8 (b) is an enlarged view of the key cylinder, and FIG. 9 is a conventional selective unlocking type door lock device. It is a block diagram showing an outline of. The key cylinder 1 is equipped with a key cylinder switch SW1,
When the key cylinder 1 is operated to the unlock side, the key cylinder switch SW1 is closed (hereinafter, the closed state of the switch is called ON and the open state is called OFF). When the key cylinder 1 is opened after being operated to the lock side or the unlock side, the key cylinder 1 returns to the neutral position (N) by the spring mechanism. A binary counter 2 and a 3-second timer 3 are connected to the key cylinder switch SW1, and each time the key cylinder 1 is operated to the unlock side, the key cylinder switch S
A Lo level signal is supplied from W1. Binary counter 2
Is composed of a well-known flip-flop, and its output signal level changes when an input signal enters twice. On the other hand, the timer 3 is activated when a Lo level signal is input from the key cylinder switch SW1 and starts timing. And
After 3 seconds, the time-up signal is output to the reset circuit 5. When the reset circuit 5 receives the time-up signal from the timer 3, it outputs a reset signal to the binary counter 2,
The binary counter 2 is reset to the initial state. The trigger circuit 4 is composed of a differentiating circuit, and when the output signal level of the binary counter 2 changes with the second unlock operation of the key cylinder 1, a pulse signal for instructing the unlock is output to the terminal I1 of the control circuit 6. Supply to.

The control circuit 6 is composed of a timer and a logic circuit, and controls the lock relay Ry1 and the unlock relay Ry2 according to the lock signal and the unlock signal. When the unlock signal is supplied from the trigger circuit 4 to the control circuit 6, the control circuit 6 excites the coil of the unlock relay Ry2 for a predetermined time (hereinafter, the excited state of the relay coil is referred to as ON and non-excited). The state is called off). When the unlock relay Ry2 turns on, the relay R
The contact of y2 is switched to the A side, and the passenger seat door lock actuator M1 and the rear seat right door lock actuator M are connected from the battery BAT to the contact A of the relay Ry2.
2, and power is supplied to the rear left door lock actuator M3, and a current flows to the ground through the contact B of the lock relay Ry1 in the off state. As a result, the door lock actuators M1 to M3 other than the driver's seat are driven to the unlock side, and the doors other than the driver's seat are unlocked.

Now, when the driver's seat key cylinder 1 is operated once to the unlock side, the lock mechanism of the driver's door is mechanically unlocked. However, at this time, since no signal is output from the binary counter 2 to the trigger circuit 4, the actuators M1 to M3 of doors other than the driver's seat do not operate, and those doors remain locked. After that, when the key cylinder 1 is operated again to the unlock side within the set time (3 seconds) of the timer 3, the output signal level of the binary counter 2 changes, and the control circuit 6 causes the unlock signal from the trigger circuit 4 to change. In response to this, the unlock relay Ry2 is turned on. Then, door lock actuators M1 to M3 other than the driver's seat
Is driven to the unlock side, and all seat doors are unlocked.
If the second unlock operation is not performed within 3 seconds after the first unlock operation of the key cylinder 1,
The timer 3 activates the reset circuit 5, and the reset circuit 5 resets the binary counter 2. Therefore, even if the second unlocking operation of the key cylinder 1 is performed after 3 seconds, the doors other than the driver's seat are not unlocked. In this way, the doors of the own seat or all seats can be selectively unlocked by the unlocking method of the key cylinder 1 in the driver's seat.

[0006] Next, there is a case where an occupant in a vehicle wants to intensively lock and unlock doors other than the driver's seat. In such a case, as shown in FIG. 10, it is conceivable to use the state detection switch SW3 that detects the locked state or the unlocked state of the door in association with the door lock knob 7 provided inside each door. .. That is, when it is detected that the door lock knob 7 is unlocked by the state detection switch SW3 of one of the doors, the doors of all seats are interlocked and unlocked.
When the door state detection switch SW3 detects that the door lock knob 7 is locked, the doors of all the seats are locked together. However, the status detection switch SW3
In the method of intensively locking or unlocking all the doors by using the key cylinder 1 and the door lock knob 7 in the driver's seat are mechanically linked, for example, the key cylinder 1 in the driver's seat described above is used. When is operated to the unlock side, the door lock knob 7 is also driven to the unlock side. As a result, the state detection switch SW3 detects a change in the state of the door lock knob 7 and unlocks the doors of all seats. In other words, only the door of one's own seat cannot be unlocked selectively.

Therefore, in the conventional selective unlocking type door lock device, a dedicated door lock switch SW2 for intensively locking or unlocking the doors other than the driver's seat is provided in the driver's seat armrest 8, for example. There is. When the door lock switch SW2 is operated to the lock side, as shown in FIG. 9, the control circuit 6 is operated via the contact A of the switch SW2.
The Lo level signal, that is, the lock signal is supplied to the terminal I2 of the control circuit 6, and the control circuit 6 turns on the lock relay Ry1 for a predetermined time. At this time, the door lock actuator M other than the driver's seat is transferred from the battery BAT via the contact A of the relay Ry1.
Power is supplied to 1 to M3, and a current flows to the ground through the contact B of the lock relay Ry2 in the off state. As a result, the door lock actuators M1 to M1 other than the driver's seat
M3 is driven to the lock side, and the doors other than the driver's seat are locked. On the other hand, when the door lock switch SW2 is operated to the unlock side, the Lo level signal, that is, the unlock signal is supplied to the terminal I1 of the control circuit 6 through the contact B of the switch SW2, and the control circuit 6 keeps the predetermined time. The unlock relay Ry2 is turned on. That is, as described above, the door lock actuators M1 to M3 other than the driver's seat are driven to the unlock side, and the doors other than the driver's seat are unlocked.

Further, as shown in FIG. 11, the unlock operation of the key cylinder 9 outside the vehicle is made into two steps, and at the position of the unlock 1 of the first step, only the door of the own seat is unlocked, and the unlock of the second step is performed. A selective unlocking type door lock device that unlocks the doors of all seats at the position of the lock 2 is also known.

[0009]

However, in the former conventional device described above, a dedicated door lock switch for centrally locking or unlocking the doors of all seats in the passenger compartment is provided, so that the passenger compartment is narrow. In addition, there is a problem that the installation space must be secured and the installation cost is high. Further, there is a problem that the circuit of the device is complicated and the mounting area is large.

Further, in the latter conventional device described above, there is a problem that the mechanism is complicated, the reliability is lowered and the cost is increased.

An object of the present invention is to provide a selective unlocking type door lock device capable of centrally locking or unlocking doors of all seats in a vehicle compartment by a door lock knob.

[0012]

The invention of claim 1 will be described with reference to FIG. 1 showing the outline of the invention. The invention of claim 1 is a plurality of door lock mechanisms provided in a plurality of doors of a vehicle. 101, 102 and their respective door lock mechanisms 10
A plurality of door lock operation members 103 and 104 for locking or unlocking the doors 1, 102 from the vehicle interior and at least one door of the plurality of doors, and a door lock mechanism 101 of the doors is locked or unlocked from the outside of the vehicle. Locking / unlocking operation means 105 for locking and driving the door lock operating member 103 provided on the door to the locking side or the unlocking side,
A plurality of actuators 106, 107 for locking or unlocking the door lock mechanisms 101, 102, and a plurality of actuators 106, 10 according to the unlocking signal or the locking signal.
First, which detects that the drive control means 108 for controlling the driving of 7 and the locking / unlocking operation means 105 are operated to the unlocking side.
When the second unlocking operation is detected within a predetermined time after the first unlocking operation of the locking / unlocking operation means 105 is detected by the detecting means 109 and the first detecting means 109, The present invention is applied to a selective unlocking type door lock device including an unlocking operation counting means 110 that outputs an unlocking signal to the drive control means 108. Then, each door lock operating member 103,
A plurality of second units for detecting a locked state and an unlocked state of 104
When any one of the plurality of door lock operating members 103 and 104 detects a state change by any of the plurality of detecting means 111 and 112 and the plurality of second detecting means 111 and 112, A command unit 113 that outputs a locking signal or an unlocking signal to the drive control unit 108 according to the state change, and the first detecting unit 109 detects that the locking / unlocking operation unit 105 is operated to the unlocking side. At this time, the prohibition means for prohibiting the output of the unlock signal by the command means 113 despite the door lock operation member 103 being driven to the unlocking side with the unlocking operation of the locking / unlocking operation means 105. And 114 to achieve the above-mentioned object.

The invention of claim 2 will be described with reference to FIG. 2 showing an outline of the invention. The invention of claim 2 is composed of a resistor and a capacitor, and a differentiating circuit 201 for generating an unlock signal. The voltage applying circuit 202 that applies an input voltage to the differentiating circuit 201 is reset each time the unlocking operation is detected by the first detecting means 109, and the voltage applying circuit 202 is operated for a predetermined time when the unlocking operation is not detected. While the time constant circuit 203 and the voltage application circuit 202 are operating, the first
When the unlocking operation is detected by the detecting means 109, the unlocking operation counting means 110A including a trigger circuit 204 that grounds the input voltage of the differentiating circuit 201 to generate an unlocking signal.

[0014]

According to the present invention, when the prohibiting means 114 detects that the locking / unlocking operation means 105 has been operated to the unlocking side by the first detecting means 109, the locking / unlocking operation means 105 is operated. Door lock operation member 1 accompanying unlocking operation
Even though 03 is driven to the unlocking side, command means 11
The output of the unlock signal by 3 is prohibited.

In claim 2, the unlocking operation counting means 110A
When the unlocking operation is detected by the first detecting means 109 during the operation of the voltage applying circuit 202, the trigger circuit 204 of (1) grounds the input voltage of the differentiating circuit 201 to generate an unlocking signal.

[0016]

【Example】

First Embodiment FIG. 3 is a block diagram showing the configuration of the first embodiment.
The same circuits and devices as those shown in FIG. 9 showing the configuration of the conventional device are designated by the same reference numerals and the description thereof will be omitted. In the figure, SW1 is a key cylinder switch which is turned on when the key cylinder 1 of the driver's door shown in FIG. 8 is operated to the unlock side, and SW4 is a key cylinder switch of the passenger door which is not shown operated to the unlock side. SW3 is a state detection switch that is turned on when the door lock knob 7 provided inside the driver's door shown in FIG. 10 is unlocked, and SW5 is provided inside the passenger seat door. The state detection switch is turned on when the door lock knob (not shown) is unlocked. In this embodiment, a key cylinder switch SW4 and a state detection switch SW5 are provided on the passenger seat outside the driver's seat, and the selective unlocking can be performed by operating either the key cylinder on the driver seat side or the passenger seat side. In addition, the doors of all seats can be locked or unlocked intensively by operating any of the door lock knobs.

Reference numeral 11 denotes a lock / unlock circuit composed of a differentiating circuit and a logic circuit, and when the state switch SW3 or SW5 is turned on in response to the unlocking operation of the door lock knob of the driver's seat door or the passenger seat door. A pulse signal for instructing unlocking is supplied to a terminal I1 of the control circuit 6 described later. Also, when the state switch SW3 or SW5 is turned off in accordance with the locking operation of the door lock knob of the driver's seat door or the passenger's door, a pulse signal for instructing locking is supplied to the terminal I2 of the control circuit 6. 12
Is a cancel circuit, which prohibits the operation of the lock / unlock circuit 11 when the key cylinder of the driver's door or the passenger door is operated to the unlock side, that is, when the key cylinder switch SW1 or SW4 is turned on. .. As described above, the key cylinders of the driver's door and the passenger's door are mechanically linked with the door lock knobs of the respective doors, and the key cylinder of the driver's door or the passenger's door is operated to the unlock side. Then, the door lock knob on the operated side is also driven to the unlock side.
As a result, the door state detection switch SW3 or S
W5 is turned on, and the lock / unlock circuit 11 supplies a pulse signal instructing the control circuit 6 to unlock all the doors to unlock all the doors. That is, when the key cylinder is unlocked for the first time, the doors other than the driver's seat and the passenger seat are unlocked. To prevent this, the cancel circuit 12 prohibits the operation of the lock / unlock circuit 11 so that the unlock signal is not output when the key cylinder is operated to the unlock side. Further, M4 is a door lock actuator for the driver's seat door.

The door lock device includes a vehicle speed detection centralized door lock function for preventing the door from being opened due to an erroneous operation of an inside handle when the vehicle speed is detected, for example, when the vehicle speed is 15 km or more, and an ignition key when getting off the vehicle. Well-known features such as a key forget prevention function that automatically unlocks the driver's door when the door is locked with the door locked knob, or a remote control function that unlocks the driver's door with a remote control without inserting the key into the key cylinder The function of can be added. These features are directly
Since it is not related to the present invention, illustration and detailed description thereof will be omitted. In addition, when the key forget prevention function and the remote control function are added, an unlock relay dedicated to the driver's seat door may be provided and driven separately by the control circuit 6 so that only the driver's seat door is locked or unlocked independently. Good.

FIGS. 4 and 5 are time charts showing operation waveforms of each part of the circuit shown in FIG. In these time charts, each circuit is described as having no operation delay time. The operation at the time of selective unlocking of the first embodiment will be described with reference to FIGS. First, when the key cylinder 1 of the driver's door is operated to the unlock side, the driver's door is unlocked and the door lock knob 7 of the driver's door is also driven to the unlock side. Also, at this time, the key cylinder switch SW1 is turned on, and as described above, the timer 3
Cancels the operation of the lock / unlock circuit 11 as the cancel circuit 12 operates at the same time. Therefore, even if the state detection switch SW3 is turned on along with the unlocking operation of the driver's seat door lock knob 7, the lock / unlock circuit 11 does not operate to output the unlock signal for unlocking the doors of all seats. .. Also, as mentioned above,
In this first unlock operation of the key cylinder 1,
The output signal level of the binary counter 2 does not change, and therefore the trigger circuit 4 does not operate. In this embodiment, the set time of the timer 3 is 3 seconds, for example.

Next, within 2 seconds of the set time of the timer 3, 2
When the unlock operation of the key cylinder 1 is performed for the second time, the output signal level of the binary counter 2 changes, and with the change of the output signal level, the trigger circuit 4 outputs a pulse signal for instructing the unlocking. Is supplied to the terminal I1. The control circuit 6 that has received the pulse signal of the unlock command sets the terminal O2 to the Lo level and turns on the unlock relay Ry2 for 1 second. This allows the power supply BAT
Power is supplied to the door lock actuators M1 to M4 of all seats from the contact R of the relay Ry2, and a current flows to the ground via the contact B of the relay Ry1 in the off state. That is, the door lock actuators M1 to M4 of all seats are driven to the unlock side, and the doors of all seats are unlocked. When the timer 3 times out, a signal is output to the reset circuit 5, and the reset circuit 5 resets the counter 2. Therefore, if the second unlock operation of the key cylinder 1 is not performed within 3 seconds, the counter 2 is reset, so that the pulse signal of the unlock command is not supplied to the control circuit 6 and other than the driver's seat. The door is not unlocked.

When the key cylinder of the passenger door is operated, only the key cylinder switch and the state detection switch are different, and the operation is the same as when the key cylinder of the driver door is operated. Therefore, the description is omitted. To do.

Next, with reference to FIG. 3 and FIG. 5, the operation of operating the door lock knob from the passenger compartment to intensively lock or unlock the doors of all seats will be described. When the passenger operates the door lock knob 7 provided inside the driver's door shown in FIG. 10 to the unlocking side, the state detection switch SW3 is turned on, and the lock / unlock circuit 11 moves to the terminal I1 of the control circuit 6. Outputs a pulse signal that commands unlocking. As described above, the control circuit 6 that has received the unlock command signal turns on the unlock relay Ry2 for 1 second. by this,
The door lock actuators M1 to M4 of all seats are driven to the unlock side, and the doors of all seats are unlocked. Even when the door lock knob of the passenger seat is operated to the unlocking side, the state detection switch SW5 is turned on and the doors of all seats are unlocked as in the case of the driver's seat.

On the other hand, when the door lock knob 7 of the driver's door is operated to the lock side, the state detection switch SW3 turns off,
The lock / unlock circuit 11 is connected to the terminal I2 of the control circuit 6.
Outputs a pulse signal to command lock. Upon receiving the lock command signal, the control circuit 6 sets the lock relay Ry1 to 1
Turn on for 2 seconds, door lock actuators M1 to M for all seats
Drive 4 to the lock side and lock the doors of all seats. Even when the door lock knob of the passenger seat is operated to the locking side, the state detection switch SW5 is turned off and the doors of all seats are locked, as in the case of the driver's seat.

By providing state detection switches on the door lock knobs of the left and right doors of the rear seat, all the seats can be locked or unlocked intensively by the door lock knobs of the left and right rear seats.

Next, when the key cylinder 1 of the driver's door is operated to the lock side, first, the driver's door is mechanically locked, and at the same time, the driver's door lock knob 7 is driven to the locked side. When the driver's seat door lock knob 7 is driven to the lock side, the state detection switch SW3 is turned off. When the driver's seat key cylinder 1 is locked, the key cylinder switch SW1 remains off, and the cancel circuit 12 does not operate. Therefore, the lock / unlock circuit 11 receiving the lock detection signal from the switch SW3 outputs a lock command signal to the terminal I2 of the control circuit 6. Then, as described above, the door actuators M1 to M4 of all seats are driven to the lock side, and the doors of all seats are locked.

Thus, even when the door lock knob 7 is driven to the unlock side and the state detection switch SW3 is turned on during the first unlock operation of the key cylinder 1, the operation of the lock / unlock circuit 11 is canceled. Circuit 12
The driver's door is mechanically unlocked. Furthermore, during the second unlock operation of the key cylinder 1,
The binary counter 2 generates an output, and the trigger circuit 4 outputs an unlock command signal to the control circuit 6, whereby the doors of all seats are unlocked. When the passenger is in the vehicle, the door lock knobs of the driver's seat or the passenger's seat are operated to the locking side to lock all the doors, and to operate to the unlocking side unlocks all the doors. With this circuit configuration, it is possible to selectively unlock the seats or all seats without installing a dedicated door lock switch or a two-stage key cylinder in a narrow vehicle compartment, and to use the conventional door lock knob. You can use it to centrally lock or unlock the doors of all seats.

Second Embodiment Next, another embodiment will be described in which the circuit of the conventional selective unlocking type door lock device is simplified and miniaturized. FIG. 6 is a block diagram showing the configuration of the second embodiment. See also FIG.
FIG. 7 is a time chart showing operation waveforms of respective parts of the circuit shown in FIG. It should be noted that devices similar to those in FIGS. 3 and 9 are designated by the same reference numerals, and differences will be mainly described. 3 and 9
The circuit of the conventional selective unlocking type door lock device shown in (1) is composed of a binary counter 2, a timer 3, a trigger circuit 4 and a reset circuit 5, and the circuit is complicated and large. In this embodiment apparatus shown in FIG. 6, a differentiating circuit 21 that supplies an unlock command signal to the control circuit 6, a voltage applying circuit 22 that applies an input voltage to the differentiating circuit 21, and a voltage applying circuit 2
It is composed of a time constant circuit 23 for activating 2 and a trigger circuit 24 for generating an unlock command signal in the differentiating circuit 21.

The time constant circuit 23 comprises resistors R1 to R3, a capacitor C1 and a diode D1. The capacitor C1 is always charged from the power supply BAT, the key cylinder of the driver's seat or the passenger's door is unlocked, and the key cylinder switches SW1, SW4
Each time the switch turns on, it discharges through the diode D1 and the resistor R3. When the key cylinder is opened and the key cylinder switches SW1 and SW4 are turned off, the capacitor C1 starts charging. This charging time is determined by the time constants of the resistors R1 and R2 and the capacitor C1, and here, for example, 3
Seconds. The transistor TR1 of the voltage application circuit 22 is
Driven by the time constant circuit 23, the key cylinder switches SW1 and SW4 are turned on for 3 seconds after being turned off. Only during that time, the voltage application circuit 22 is operated by the battery BAT.
The voltage obtained by dividing the voltage by the resistors R4 and R5 is applied to the input of the differential circuit 21 in the subsequent stage. The output of the differentiating circuit 21 is connected to the terminal I1 of the control circuit 6 and is normally the battery B
The terminal I1 of the control circuit 6 from the AT through the resistors R8 and R6
A positive voltage is applied to. The trigger circuit 24 is a differentiation circuit 21 when the key cylinder switches SW1 and SW4 are turned on.
Is grounded through the diode D2.

Now, when the key cylinder 1 of the driver's door is unlocked, the driver's door is unlocked. At this time, the key cylinder switch SW1 is turned on, and the capacitor C1 of the time constant circuit 23 is discharged and reset.
With the discharge of the capacitor C1, the transistor TR
The base potential of 1 drops, and the transistor TR1 turns on. Even if the transistor TR1 is turned on when the key cylinder 1 is unlocked, the input of the differentiating circuit 21 is grounded via the trigger circuit 24 and the key cylinder switch SW1 and no voltage is applied to the input of the differentiating circuit 21. When the key cylinder 1 is opened, the key cylinder switch SW1 is turned off and the capacitor C1 of the time constant circuit 23 starts charging. At the same time, the input of the differentiating circuit 21 is released from the ground, and the input voltage is applied by the transistor TR1 in the ON state. Within 3 seconds from the first unlock operation of the driver's seat key cylinder 1,
When the driver's seat key cylinder 1 is unlocked again, the time constant circuit 23 is reset and the input of the differentiating circuit 21 is grounded by the trigger circuit 24. At this time, the potential of the capacitor C2 of the differentiating circuit 21 suddenly drops to the ground potential, and the battery BAT causes the resistor R
Current flows to ground through 8 and the capacitor C2. That is, as shown in FIG. 7, a negative pulse voltage is applied to the terminal I1 of the control circuit 6 via the resistor R6. The control circuit 6 uses the unlock relay R as described above.
The y2 is turned on for 1 second, the door lock actuators M1 to M4 of all seats are driven to the unlock side, and the doors of all seats are unlocked. It should be noted that within the operation time of 3 seconds of the voltage application circuit 22 set by the time constant circuit 23, the 2 of the key cylinder 1 is
If the unlock operation is not performed for the second time, as shown by the broken line in FIG. 7, charging of the capacitor C1 of the time constant circuit 23 is completed, the base potential of the transistor TR1 rises, the transistor TR1 is turned off, and the differentiation circuit is turned on. The voltage application to 21 is stopped. That is, all the circuits return to the initial state.

Note that the central locking or central unlocking of all seat doors by the door lock knob operation in the second embodiment and the locking of all seats by the key cylinder operation are the same as in the above-mentioned first embodiment, and therefore will be described. Is omitted.

As described above, since the circuit structure of the selective unlocking type door lock device is composed of a small number of elements, the device can be downsized.

In the first and second embodiments, the example in which the door cylinders of the driver's seat and the passenger's door are selectively unlocked by the key cylinders of the driver's door and the passenger's door has been shown. The present invention is not limited to the cylinder, and may be a remote control device that unlocks the door by remote control operation.

In the structure of the above embodiment, the door lock knob 7 is the door lock operation member, the key cylinder 1 is the locking / unlocking operation means, and the door lock actuators M1 to M1.
M4 is an actuator, control circuit 6 is drive control means, key cylinder switch SW1 is first detection means, binary counter 2, timer 3, trigger circuit 4 and reset circuit 5 are unlocking operation counting means. The detection switches SW3 and SW5 constitute second detecting means, the lock / unlock circuit 11 constitutes commanding means, and the cancel circuit 12 constitutes inhibiting means.

[0034]

As described above, according to the invention of claim 1, during the first unlocking operation of the locking / unlocking operation means, the door lock operating member of the door is driven to the unlocking side. Two
Even if the detection means of the above is activated, the unlocking signal is not output to the drive control means. Therefore, the door of the own seat is unlocked by the first unlocking operation, and the second unlocking operation is performed within the predetermined time. The doors of all seats can be unlocked selectively, and doors of all seats can be locked or unlocked intensively by the door lock operation member without providing a dedicated door lock switch. Further, according to the second aspect, the unlocking operation counting means is constituted by a small number of elements including the differentiating circuit, the voltage applying circuit, the time constant circuit and the trigger circuit, so that the device can be downsized.

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of the invention of claim 1;

FIG. 2 is a diagram showing an outline of the invention of claim 2;

FIG. 3 is a block diagram showing the configuration of the first embodiment.

FIG. 4 is a time chart showing operation waveforms of respective parts of the apparatus of the first embodiment shown in FIG.

5 is a time chart showing operation waveforms of respective parts of the apparatus of the first embodiment shown in FIG.

FIG. 6 is a block diagram showing a configuration of a second embodiment.

FIG. 7 is a time chart showing operation waveforms of respective parts of the apparatus of the second embodiment shown in FIG.

FIG. 8 is a view showing a key cylinder.

FIG. 9 is a block diagram showing a configuration of a conventional device.

FIG. 10 is a view showing a door lock knob inside a driver's seat door and a door lock switch on an armrest.

FIG. 11 is a diagram showing a two-stage operation type key cylinder.

[Explanation of symbols]

 SW1, SW4 Key cylinder switch SW3, SW5 State detection switch 1 Key cylinder 2 Binary counter 3 Timer 4, 24, 204 Trigger circuit 5 Reset circuit 6 Control circuit 11 Lock / Unlock circuit 12 Cancel circuit Ry1, Ry2 Relays M1 to M4 Door lock actuator 21,201 Differentiation circuit 22,202 Voltage application circuit 23,203 Time constant circuit R1 to R8 Resistors C1 and C2 Capacitors D1 and D2 Diodes 101 and 102 Door lock mechanism 103 and 104 Door lock operating member 105 Locking and unlocking Lock operation means 106, 107 Actuator 108 Drive control means 109 First detection means 110, 110A Unlock operation counting means 111, 112 Second detection means 113 Command means 114 Inhibition means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Yoshizawa 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan Motor Co., Ltd.

Claims (1)

Claims: 1. A plurality of door lock mechanisms provided on a plurality of doors of a vehicle, and a plurality of door lock operation members for locking or unlocking each of these door lock mechanisms from a vehicle interior. At least one door of the plurality of doors is provided, and a door lock mechanism of the door is locked or unlocked from outside the vehicle, and the door lock operation member provided on the door is provided on a locking side or an unlocking side. Locking / unlocking operation means for driving, a plurality of actuators for locking or unlocking each of the door lock mechanisms, drive control means for drivingly controlling the plurality of actuators according to an unlocking signal or a locking signal, and the locking First detecting means for detecting that the unlocking operation means has been operated to the unlocking side, and the first unlocking operation of the locking / unlocking operation means is detected by the first detecting means. In the selective unlocking type door lock device, which comprises an unlocking operation counting means for outputting an unlocking signal to the drive control means when a second unlocking operation is detected within a predetermined time after being issued, Among the plurality of door lock operating members, one of the plurality of second detecting means for detecting the locked state and the unlocked state of each door lock operating member and the plurality of the second detecting means is used. When any state change is detected, command means for outputting a lock signal or an unlock signal to the drive control means according to the state change, and the lock / unlock operation means by the first detection means. When it is detected that the door has been operated to the unlocking side, the command means is operated even if the door lock operating member is driven to the unlocking side with the unlocking operation of the locking / unlocking operating means. Prohibit output of unlock signal Selection unlocking door lock device, characterized in that it comprises a prohibiting means. 2. The selective unlocking type door lock device according to claim 1, wherein the unlocking operation counting means is composed of a resistor and a capacitor, and a differentiating circuit for generating the unlocking signal. A voltage applying circuit for applying an input voltage to the differentiating circuit, and a time constant circuit which is reset each time the unlocking operation is detected by the first detecting means and operates the voltage applying circuit for a predetermined time when the unlocking operation is not detected. A trigger circuit for generating an unlock signal by grounding the input voltage of the differentiating circuit when the unlocking operation is detected by the first detecting means during the operation of the voltage applying circuit. Selective unlocking type door lock device.