JPH0528303Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to automatic door locks for automobiles and the like.

(Prior art and its problems) Conventional automatic door locks used in automobiles are configured so that when the driver's seat door is locked, all other doors are simultaneously locked. Therefore, after getting out of the car and locking the driver's door, if you need to unload your luggage through another door, you must unlock the driver's door again and then unlock all doors. . Also, in this case, even if you know before you get off that you can unload your luggage from the other door,
In the case of a single driver, the driver must first get out of the car, unload luggage, etc. through another door, then return to the driver's seat door and lock it, which is a cumbersome task.

(Purpose of the invention) This invention was made to solve the above problem, and provides an automatic door lock that allows other doors to be opened for a certain period of time even after a certain door is locked. The purpose is to

(Means for Achieving the Purpose) The automatic door lock of this invention automatically locks the rear right door, front left door, and rear left door other than the driver's seat in response to the locking operation of the locking mechanism of the driver's door. The automatic door lock has a locking relay that is connected to a power source and operates in conjunction with the locking operation of the locking mechanism, and a locking relay that is connected to the locking relay through a common electrical circuit and that operates in conjunction with the locking operation of the locking mechanism. a timer for delaying the lock operation of each door other than the driver's door, each of which measures a different delay operation time of 5 seconds or more; and a timer connected to each of the timers and activated after the delay operation time of each of the timers. A solenoid is provided for locking each door other than the seat door.

(Function) In this device, even after the driver's door is locked, other doors can be opened freely for a predetermined period of 5 seconds or more due to the function of each timer for lock operation delay. Therefore, even if you realize that you should unload your luggage from another door after locking the driver's door, you can do so with plenty of time.

(Embodiment) The figure shows a circuit diagram of an automatic door lock that is an embodiment of this invention.

This automatic door lock is applied to an automobile, and includes a changeover switch 1 which operates in conjunction with a locking mechanism of a driver's seat door, and is connected to a control relay unit 2. This control relay unit 2 is for controlling the energization of the solenoids that open and close the locking mechanisms of other doors, and includes a timer 3 that limits the energization time to the solenoids, and 2 for locking and unlocking. It has two relays 4 and 5. One ends of the excitation coils 4a, 5a of these two relays 4, 5 are connected to the DC power supply 6 via the timer 3, while the other ends of these excitation coils 4a, 5a are connected to each switching contact 1a of the changeover switch 1. , 1b, respectively, and is configured such that power is supplied from the DC power supply 6 to either one of the excitation coils 4a, 5a by the switching operation of the changeover switch 1. On the other hand, among the two relays 4 and 5, the contact 4 of the locking relay 4
b is connected to the locking solenoids 7a, 8a, and 9a of the other doors, that is, the rear right door, the front left door, and the rear left door, and the contact 5b of the unlocking relay 5 is used to unlock the doors. Connected to solenoids 7b, 8b, 9b,
When the contact 4b is opened, power is supplied from the DC power supply 6 to each of the lock operation solenoids 7a, 8a, and 9a, and when the contact 5b is closed, power is supplied to each of the unlock operation solenoids 7b, 8b, and 9b. configured. Contact 4b of locking relay 4 and solenoid 7 for locking each door.
Lock operation delay timers 10, 11, and 12 are inserted between lock relays 10, 8a, and 9a, respectively, each of which measures a delay operation time of 5 seconds or more from the activation of the lock relay 4, and each has a different delay operation time. . In this embodiment, the delay operation times of these timers 10, 11, and 12 are set to 5 seconds, 10 seconds, and 15 seconds, respectively. On the other hand, the operating time of the timer 3 of the control relay unit 2 is set to a value exceeding 15 seconds.

Next, this automatic door lock operation will be explained. When the driver's seat door is locked by pressing the lock knob on the inside of the driver's seat door or by operating a key from outside the vehicle, the changeover switch 1 is turned on to the lock side contact 1a as shown in the figure in conjunction with a lock mechanism (not shown). , the excitation coil 4a of the locking relay 4 is energized and the contact 4b is turned on. By this ON operation, the power supply voltage is applied to the timers 9, 10, 11 corresponding to each other door, and then the solenoid 7a, 8a, 9a The energization starts sequentially. In other words, the rear right door is locked 5 seconds after the driver's door is locked, and the front left door is locked.
After 10 seconds, the rear left door will be locked after 15 seconds. After that, control relay unit 2
When the set time of the timer 3 has elapsed, the timer 3 cuts off the energized path, so the contact 4b of the locking relay 4 turns off, and the solenoids 7a, 8
The power supply to a and 9a is stopped. Therefore, within the above-mentioned time periods after the driver's seat door is locked, each door can be opened freely to unload luggage. Also, even if you leave the car,
After the above time has elapsed, all doors are automatically locked, so there is no problem in terms of security.

On the other hand, when the driver's door is unlocked from the above-mentioned locked state by key operation, the changeover switch 1 turns on the unlocking side contact 1b in conjunction with the operation of the locking mechanism, and the excitation coil 5a of the unlocking relay 5 turns on. Electricity is supplied and contact 5b is turned on. As a result of this ON operation, the unlock operation solenoids 7b, 8b, and 9b corresponding to the other doors start being energized all at once, and all the doors are unlocked. Thereafter, when a predetermined period of time has elapsed, the timer 3 of the control relay unit 2 interrupts the energizing path, so that the contact 5b of the unlocking relay 5 is turned off and the energization to the solenoids 7b, 8b, and 9b is stopped.

In the above embodiment, the delay operation time of each timer 10, 11, 12 corresponding to another door is made different,
Each door is locked sequentially with a time difference, but the timers 10, 11, and 12 are set so that the other doors are locked at the same time after a certain period of time after the driver's door is locked. The delay operation time may be set to be the same. In addition, in the configuration in which the locking of each door is performed sequentially with a time difference as described above, the current flowing through the common electrical circuit for locking can be suppressed to a low level, so that the electrical circuit and the relay 4 can be provided with small capacity ones.

(Effects of the invention) As described above, according to the automatic door lock of this invention, even after the driver's door is locked, other doors can be opened freely for a predetermined period of 5 seconds or more. When applied to a car door lock, it is possible to easily handle the need to unload luggage through other doors after locking the driver's seat door.

In addition, since each door other than the driver's seat is locked sequentially with a time difference, the current flowing through the common locking circuit can be kept low, and the common circuit and locking relay can be of small capacity. There are also advantages.

[Brief explanation of the drawing]

The drawing is a circuit diagram of an automatic door lock that is an embodiment of this invention. 1... Changeover switch, 2... Control relay unit, 3... Timer, 4... Locking relay, 5... Unlocking relay, 7a, 8a, 9
a... Lock operation solenoid, 7b, 8b, 9
b... Solenoid for unlocking operation, 10 to 12
...Timer.

Claims (1)

[Scope of claim for utility model registration] An automatic door lock in which the rear right door, front left door, and rear left door other than the driver's seat are automatically locked in response to the locking operation of the driver's door lock mechanism. a locking relay that is connected to a power source and operates in conjunction with the locking operation of the locking mechanism; and a locking relay that is connected to the locking relay via a common electrical circuit and that is connected to the locking relay for at least 5 seconds after the activation of the locking relay, and that each of the locking relays operates at different times. a timer for delaying the lock operation of each door other than the driver's door, which measures the delay operation time;
An automatic door lock comprising: a solenoid for locking each door other than the driver's door, which is connected to each of the timers and operates after a delay operation time set by each of the timers.