JP3035008B2 - Selective unlocking door lock device - Google Patents

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 which can arbitrarily select and unlock a door for a seat and a door for all seats.

[0002]

2. Description of the Related Art When a key cylinder provided outside a door of a vehicle is operated to an unlock side, a door of a seat is unlocked, and when the key cylinder is operated again to an unlock side within a predetermined time, all doors of a passenger seat and a rear seat are opened. 2. Description of the Related Art A selective unlocking type door lock device to be unlocked is known.

FIG. 8A is a view showing a key cylinder provided in a driver seat door, FIG. 8B 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 the outline of. The key cylinder 1 is provided 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 a 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
The 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 is input twice. On the other hand, the timer 3 starts when a Lo level signal is input from the key cylinder switch SW1, and starts counting time. And
After three seconds, a time-up signal is output to the reset circuit 5. When receiving a time-up signal from the timer 3, the reset circuit 5 outputs a reset signal to the binary counter 2,
Reset the binary counter 2 to the initial state. The trigger circuit 4 includes a differentiating circuit. When the output signal level of the binary counter 2 changes with the second unlock operation of the key cylinder 1, the trigger circuit 4 outputs a pulse signal for instructing unlock 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 relays Ry1 and Ry2 according to the lock signal and the unlock signal. When an 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 period of time (hereinafter, the excitation state of the relay coil is referred to as ON, and non-excitation is performed). State is called off). When unlock relay Ry2 turns on, relay R
The y2 contact is switched to the A side, and the passenger door lock actuator M1 and the rear right door lock actuator M are connected from the battery BAT via 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 via the contact B of the lock relay Ry1 in the off state. Thereby, 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 seat 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 the doors other than the driver's seat do not operate, and the doors remain locked. Thereafter, when the key cylinder 1 is again operated 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 outputs the unlock signal from the trigger circuit 4. To turn on the unlock relay Ry2. And door lock actuators M1 to M3 other than the driver's seat
Is driven to the unlock side, and the doors of all seats are unlocked.
If the second unlock operation is not performed within three seconds from 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 unlock operation of the key cylinder 1 is performed three seconds later, the doors other than the driver's seat are not unlocked. In this manner, the doors of the driver's seat or all the seats can be selectively unlocked by the unlock operation method of the key cylinder 1 in the driver's seat.

[0006] Next, there is a case where the occupant on the board wants to lock and unlock doors other than the driver's seat intensively. In such a case, as shown in FIG. 10, it is conceivable to use a state detection switch SW3 that detects a locked state or an unlocked state of the door in conjunction with a door lock knob 7 provided inside each door. . That is, when it is detected that the door lock knob 7 is unlocked by any one of the door state detection switches SW3, the doors of all the seats are linked and unlocked.
When the door lock knob 7 is detected to be locked by any one of the door state detection switches SW3, the doors of all the seats are linked and locked. However, the state detection switch SW3
In the method of intensively locking or unlocking all the doors using the key cylinder 1, the key cylinder 1 and the door lock knob 7 of the driver's seat are mechanically interlocked. 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 all the doors. That is, it is not possible to selectively unlock only the door at the seat.

For this reason, in the conventional selective unlocking type door lock device, a dedicated door lock switch SW2 for centrally locking or unlocking a door other than the driver's seat is provided in the driver's armrest 8, for example. I have. When the door lock switch SW2 is operated to the lock side, as shown in FIG. 9, the control circuit 6 is controlled via the contact A of the switch SW2.
, A lock signal is supplied to the terminal I2, 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 connected 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 via the contact B of the lock relay Ry2 in the off state. Thereby, the door lock actuators M1 to M1 other than the driver's seat
M3 is driven to the lock side, and 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, a Lo level signal, that is, an 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 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 key cylinder 9 outside the vehicle is unlocked in two stages, and only the door of the driver's seat is unlocked at the position of the unlock 1 of the first stage to unlock the second stage. A selective unlocking type door lock device that unlocks all the doors 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 locking or unlocking all the doors in the vehicle compartment intensively is provided. 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.

In the latter conventional device, the mechanism is complicated, and there is a problem that reliability is reduced and cost is increased.

An object of the present invention is to provide a selective unlocking type door lock device in which doors of all seats can be intensively locked or unlocked in a vehicle interior 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 based on a plurality of door lock mechanisms provided on a plurality of doors of a vehicle. 101, 102 and each of these door lock mechanisms 10
A plurality of door lock operation members 103 and 104 for locking or unlocking the doors 1 and 102 from the vehicle interior and at least one of the plurality of doors, and a door lock mechanism 101 of the doors are locked or unlocked from outside the vehicle. Locking / unlocking operation means 105 for locking and driving a door lock operation member 103 provided on the door to a locking side or an unlocking side;
A plurality of actuators 106, 107 for locking or unlocking each door lock mechanism 101, 102, and a plurality of actuators 106, 10 according to an unlocking signal or a locking signal.
Drive control means 108 for controlling the drive of the lock 7 and a first control means for detecting that the locking / unlocking operation means 105 has been 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 unit 105 is detected by the first detecting unit 109 and the first detecting unit 109, The present invention is applied to a selective unlocking type door lock device including an unlocking operation counting unit 110 that outputs an unlocking signal to the drive control unit 108. And each door lock operation member 103,
A plurality of second detections for detecting the locked state and the unlocked state of the
When one of the plurality of door lock operation members 103 and 104 detects a state change of one of the plurality of second lock detection members 111 and 112 and one of the plurality of second detection units 111 and 112, Command means 113 for outputting a lock signal or unlock signal to drive control means 108 according to the state change, and detection of lock / unlock operation means 105 being operated to the unlock side by first detection means 109. Prohibition means for prohibiting the output of the unlock signal by the command means 113 even though the door lock operation member 103 is driven to the unlock side by the unlock operation of the locking / unlock operation means 105 114, thereby achieving the above object.

The invention of claim 2 will be described with reference to FIG. 2 showing the outline of the invention. The invention of claim 2 comprises a differentiating circuit 201 for generating an unlocking signal, comprising a resistor and a capacitor. A voltage application circuit 202 for applying an input voltage to the differentiating circuit 201, and resetting each time an unlocking operation is detected by the first detecting means 109, and operating the voltage applying circuit 202 for a predetermined time when no unlocking operation is detected. The time constant circuit 203 and the first
When the unlocking operation is detected by the detecting means 109, the unlocking operation counting means 110A is constituted by a trigger circuit 204 for grounding the input voltage of the differentiating circuit 201 and generating an unlocking signal.

[0014]

According to the first aspect, when the first detecting means detects that the locking / unlocking operation means has been operated to the unlocking side, the prohibiting means detects the operation of the locking / unlocking operation means. Door lock operating member 1 upon unlocking operation
03 is driven to the unlocking side,
3 inhibits the output of the unlock signal.

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

Reference numeral 11 denotes a lock / unlock circuit composed of a differentiating circuit and a logic circuit. The unlock / unlock circuit 11 is operated 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 door or the passenger's door. A pulse signal for instructing unlocking is supplied to a terminal I1 of the control circuit 6, which will be described later. 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 door or the passenger's seat door, a pulse signal for locking is supplied to the terminal I2 of the control circuit 6. 12
Is a cancel circuit, which inhibits the operation of the lock / unlock circuit 11 when the key cylinder of the driver's door or the passenger's 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 door and the passenger door are mechanically linked with the door lock knobs of the respective doors, and the key cylinder of the driver door or the passenger door is operated to the unlock side. Then, the operated door lock knob is also driven to the unlock side.
As a result, the door state detection switch SW3 or S
When W5 is turned on, the lock / unlock circuit 11 supplies the control circuit 6 with a pulse signal for instructing the unlocking of all the doors to unlock the doors of all the seats. That is, when the key cylinder is unlocked for the first time, doors other than the driver's seat or the passenger's seat are unlocked. In order to prevent this, the cancel circuit 12 inhibits 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. M4 is a door lock actuator of the driver's seat door.

This door lock device has a vehicle speed detection type centralized door lock function that detects the speed of the vehicle and prevents the door from being opened due to an incorrect operation of the inside handle when the vehicle speed becomes, for example, 15 km or more. When the door is locked with the door lock knob inserted, the driver's door is automatically unlocked. The remote control function allows the driver's door to be unlocked with a remote control without inserting the key into the key cylinder. Function can be added. These features are directly
Since it is not related to the present invention, illustration and detailed description are omitted. When the key forgetting prevention function and the remote control function are added, an unlock relay dedicated to the driver's seat door is provided, separately driven by the control circuit 6, and only the driver's door is locked or unlocked alone. Good.

FIGS. 4 and 5 are time charts showing the operation waveforms of the respective parts of the circuit shown in FIG. In these time charts, each circuit is described as having no operation delay time. The operation of the first embodiment at the time of selective unlocking will be described with reference to FIGS. First, when the key cylinder 1 of the driver's seat 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. At this time, the key cylinder switch SW1 is turned on, and the timer 3 is turned on as described above.
Starts the timing, and the cancel circuit 12 operates to prohibit the operation of the lock / unlock circuit 11. Therefore, even if the state detection switch SW3 is turned on in accordance with the unlocking operation of the driver's door lock knob 7, the lock / unlock circuit 11 does not operate and does not output the unlock signal for unlocking the doors of all the 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, so that the trigger circuit 4 does not operate. In this embodiment, the set time of the timer 3 is, for example, 3 seconds.

Next, within 3 seconds set by the timer 3, 2
When the key cylinder 1 is unlocked a second time, the output signal level of the binary counter 2 changes, and in response to the change in the output signal level, the trigger circuit 4 outputs a pulse signal for instructing unlocking to the control circuit 6. To the terminal I1. The control circuit 6, which has received the unlock command pulse signal, sets the terminal O2 to the Lo level and turns on the unlock relay Ry2 for one second. Thereby, the power supply BAT
, Power is supplied to the door lock actuators M1 to M4 of all the seats via the contact A 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 the seats are driven to the unlock side, and the doors of all the 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 unlocking 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 the other than the driver's seat. The door is not unlocked.

When the key cylinder of the passenger's seat door is operated, the operation is the same as when the key cylinder of the driver's door is operated, except that the key cylinder switch and the state detection switch are different. I do.

Next, referring to FIGS. 3 and 5, the operation of operating the door lock knob from the interior of the vehicle to lock or unlock the doors of all the seats intensively will be described. When the driver locks the door lock knob 7 provided inside the driver's seat door shown in FIG. 10 to the unlocking side, the state detection switch SW3 is turned on, and the lock / unlock circuit 11 connects to the terminal I1 of the control circuit 6. Outputs a pulse signal to command unlocking. As described above, the control circuit 6 that has received the unlock command signal turns on the unlock relay Ry2 for one second. by this,
The door lock actuators M1 to M4 of all the seats are driven to the unlock side, and the doors of all the seats are unlocked. Also, 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 the seats are unlocked as in the case of the driver seat.

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

By providing a state detection switch on each of the door lock knobs of the left and right doors of the rear seat, the locking and unlocking of all the seats can be centrally performed by the left and right door lock knobs.

Next, when the key cylinder 1 of the driver's seat door is operated to the lock side, the driver's door is first mechanically locked, and at the same time, the driver's door lock knob 7 is driven to the lock side. When the driver's door lock knob 7 is driven to the locking 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 that has received 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 the seats are driven to the lock side, and the doors of all the seats are locked.

As described above, 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
And only the driver's door is mechanically unlocked. Furthermore, at the time of 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 driver or the passenger's seat door lock knob is operated to the locking side during boarding, the doors of all the seats are locked, and when the door locking knob is operated to the unlocking side, the doors of all the seats are unlocked. With such a circuit configuration, it is not necessary to provide a dedicated door lock switch in a narrow cabin or a two-stage key cylinder, and it is possible to selectively unlock one's seat or all seats, and to use a conventional door lock knob. The doors of all seats can be locked or unlocked intensively in the vehicle cabin by using it.

Second Embodiment Next, a description will be given of another embodiment in which the circuit of the conventional selective unlocking type door lock device is simplified and downsized. FIG. 6 is a block diagram showing the configuration of the second embodiment. FIG.
7 is a time chart showing operation waveforms of respective parts of the circuit shown in FIG. Note that the same reference numerals are given to the same devices as those in FIGS. 3 and 9, and the description will focus on the differences. 3 and 9
The conventional selective unlocking type door lock device shown in FIG. 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 shown in FIG. 6, a differentiating circuit 21 for supplying an unlock command signal to the control circuit 6, a voltage applying circuit 22 for applying an input voltage to the differentiating circuit 21, and a voltage applying circuit 2
2 and a trigger circuit 24 for generating an unlock command signal for the differentiating circuit 21.

The time constant circuit 23 includes 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 seat door is unlocked, and the key cylinder switches SW1, SW4
Discharges through the diode D1 and the resistor R3 every time is turned on. 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 constant of the resistors R1 and R2 and the capacitor C1.
Seconds. The transistor TR1 of the voltage application circuit 22
Driven by the time constant circuit 23, the key cylinder switches SW1 and SW4 are turned on only for 3 seconds after being turned off. Only during that time, the voltage application circuit 22
The voltage obtained by dividing the voltage by the resistors R4 and R5 is applied to the input of a differentiating circuit 21 at the subsequent stage. An output of the differentiating circuit 21 is connected to a terminal I1 of the control circuit 6, and is usually connected to a battery B.
The terminal I1 of the control circuit 6 from the AT via the resistors R8 and R6
Is applied with a positive voltage. The trigger circuit 24 operates when the key cylinder switches SW1 and SW4 are turned on.
Is grounded via a diode D2.

Now, when the key cylinder 1 of the driver's seat door is unlocked, the driver's seat 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
1 decreases, 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 after 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 drops rapidly to the ground potential, and
The current flows to the ground via the capacitor 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 controls the unlock relay R as described above.
y2 is turned on for one second, and the door lock actuators M1 to M4 of all the seats are driven to the unlock side to unlock the doors of all the seats. The operation time of the voltage application circuit 22 set by the time constant circuit 23 is within 3 seconds,
If the second unlock operation is not performed, the charging of the capacitor C1 of the time constant circuit 23 is completed, the base potential of the transistor TR1 rises, and the transistor TR1 is turned off, as indicated by a broken line in FIG. The voltage application to 21 stops. That is, all circuits return to the initial state.

The central locking and unlocking of all seat doors by operating the door lock knob and the locking of all seats by operating the key cylinder in the second embodiment are the same as in the first embodiment described above. Is omitted.

As described above, since the selective unlocking type door lock device is constituted by a circuit with a small number of elements, the size of the device can be reduced.

In the first and second embodiments, the doors of the driver's seat and the passenger's seat are selectively unlocked by the key cylinders of the driver's door and the passenger's seat door. 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 configuration of the above embodiment, the door lock knob 7 functions as a door lock operating member, the key cylinder 1 functions as a locking / unlocking operation means, and the door lock actuators M1 to M1.
M4 indicates an actuator, control circuit 6 indicates drive control means, key cylinder switch SW1 indicates first detection means, binary counter 2, timer 3, trigger circuit 4 and reset circuit 5 indicate unlocking operation counting means. The detection switches SW3 and SW5 constitute second detection means, the lock / unlock circuit 11 constitutes command means, and the cancel circuit 12 constitutes inhibition means.

[0034]

As described above, according to the first aspect of the present invention, at the time of the first unlocking operation of the locking / unlocking operation means, the door lock operating member of the door is driven to the unlocking side and the door is unlocked. 2
Even if the detecting means is activated, the unlock signal is not output to the drive control means, so that the door of the seat is unlocked by the first unlocking operation, and the unlocking operation is performed by the second unlocking operation within a predetermined time. It is possible to selectively unlock the doors of all the seats, and the doors of all the seats can be locked or unlocked intensively by a door lock operating member without providing a dedicated door lock switch. According to the second aspect, the unlocking operation counting means is constituted by a small number of elements including a differentiating circuit, a voltage applying circuit, a time constant circuit, and a trigger circuit, so that the apparatus is downsized.

[Brief description of the 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 device of the first embodiment shown in FIG. 3;

FIG. 5 is a time chart showing operation waveforms of respective parts of the device of the first embodiment shown in FIG. 3;

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 device according to the second embodiment shown in FIG. 6;

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 view 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 Relay M1 to M4 Door lock actuator 21, 201 Differentiating circuit 22, 202 Voltage applying circuit 23, 203 Time constant circuit R1 to R8 Resistor C1, C2 Capacitor D1, D2 Diode 101, 102 Door lock mechanism 103, 104 Door lock operating member 105 Locking / 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 Prohibition means

──────────────────────────────────────────────────続 き Continuation of front page (72) Takashi Yoshizawa, inventor Nissan Motor Co., Ltd. 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture (56) References JP-A-61-155582 (JP, A) JP-A-59- 158876 (JP, A) JP-A-4-136384 (JP, A) JP-A-63-181876 (JP, A) JP-A-62-25685 (JP, A) JP-A-4-1969 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E05B 65/12-65/42 B60J 5/00

Claims (2)

(57) [Claims] 1. A plurality of door lock mechanisms provided on a plurality of doors of a vehicle, a plurality of door lock operation members for locking or unlocking each of these door lock mechanisms from a vehicle interior, and a plurality of door lock operation members. Locking and unlocking the door lock mechanism of the door from outside the vehicle and driving the door lock operating member provided on the door to the locking side or the unlocking side. Operating means, a plurality of actuators for locking or unlocking the respective door lock mechanisms, a drive control means for driving and controlling the plurality of actuators according to an unlocking signal or a locking signal, and the locking / unlocking operating means. A first detecting means for detecting that an operation has been performed on the unlocking side, and a predetermined time after 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 including an unlocking operation counting means for outputting an unlocking signal to the drive control means when a second unlocking operation is detected, A plurality of second detection means for detecting the locked state and the unlocked state, and any one of the plurality of second detection means causes a state change of any of the plurality of door lock operation members. When it is detected, command means for outputting a lock signal or unlock signal to the drive control means in accordance with the state change, and the lock / unlock operation means is operated to the unlock side by the first detection means. Is detected, the output of the unlocking signal by the commanding means is performed even though the door lock operating member is driven to the unlocking side with the unlocking operation of the locking / unlocking operating means. With prohibition means to prohibit Select unlocked door locking device, characterized in that. 2. The selective unlocking type door lock device according to claim 1, wherein said unlocking operation counting means comprises a resistor and a capacitor, and a differentiating circuit for generating said unlocking signal. A voltage application circuit for applying an input voltage to the differentiating circuit; a time constant circuit that is reset each time an unlocking operation is detected by the first detection means and operates the voltage application circuit for a predetermined time when no unlocking operation is detected. A trigger circuit for generating an unlock signal by grounding the input voltage of the differentiating circuit when an unlocking operation is detected by the first detecting means during operation of the voltage applying circuit. Selective unlocking type door lock device.