JPH035660Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a door lock device for an automobile having a child-proof mechanism, and more particularly relates to a door lock device in which the child-proof mechanism is operated by electromagnetic means. It is something.

(Prior art) The door lock device can be operated manually by a passenger from inside the vehicle, or by operating a key from outside the vehicle. This is done to ensure safety by not opening the door and to prevent theft. In terms of safety, for example, there is a possibility that a child may accidentally disengage the lock and open the door due to mischief, etc., so it is necessary to prevent children from opening and closing the door only from outside the vehicle and not from inside the vehicle. A proof mechanism is often provided. An example of a child-proof mechanism is the JP-A-56-
As disclosed in No. 476, there is a vehicle in which the child-proof mechanism is operated by manually operating a child-proof operating lever located in a position that cannot be operated from inside the vehicle. Child proofs like this are usually integrated into the door opening/closing mechanism, and are usually installed on each door on both sides of the car, and must be activated and released separately for each door. . For this reason, for example, when placing a child in the back seat, to prevent children from playing with the child, it is necessary to activate the child-proof on one door, then turn to the other side and activate the child-proof on the other door. It is cumbersome to operate. Furthermore, if you are unable to open one door, such as when you park your car very close to a wall, you will have to move the car to a position where the door can be opened. troublesome.

Incidentally, Japanese Utility Model Publication No. 58-23885 discloses a door lock device in which a switch is provided in the driver's seat so that the child-proof mechanism can be remotely controlled from the driver's seat, but the operating section provided in the rear door itself is , each door's child-proof mechanism is manually activated. Therefore, in this case, unless a switch is operated from the driver's seat, the child-proof mechanism must be activated for each door.

(Purpose of the invention) An object of the invention is to provide a door lock device for an automobile that can efficiently and reliably operate child-proof mechanisms provided on the left and right rear doors.

(Structure of the invention) The automobile door lock device according to the invention is configured such that when a switch is operated to activate the child-proof mechanism of one rear door, the child-proof mechanism of the other rear door is simultaneously activated. This aims to achieve the above objective.

That is, child-proof mechanisms provided on rear doors on both sides of the automobile, two electromagnetic devices that respectively operate these child-proof mechanisms, and two electromagnetic devices provided on each of the rear doors that operate each of the electromagnetic devices, respectively. a switch member, and first and second control units connected to both of the two electromagnetic devices, and either one of the two switch members is switched to a position for operating the childproof mechanism. The present invention is characterized in that, when one of the two control units is actuated, the two electromagnetic devices on both sides are actuated together.

(Effects of the Invention) According to the present invention, by operating the child-proof mechanism of one door, it is possible to complete the operation of the child-proof mechanisms of both doors. That is, by operating the switch member provided on one door, there is no need to go to the opposite side of the vehicle body and operate the switch member provided on the other door, making the operation easier. Also, since the operations are linked in this way, there is no need to forget to operate the child proof on one side. Furthermore, even if you cannot open the door on one side, such as when the car is parked very close to a wall or fence,
Both sides can be operated at the same time by operating a switch on the opposite door, which is very convenient.

In addition, if a switch is installed in the driver's seat to enable remote control of the child-proof mechanism from the driver's seat, as in the past, in order to be able to operate the switch from the driver's seat, it is necessary to install a switch from each rear door to the driver's seat. However, according to this invention, it is necessary to install new switches in the instrument panel, etc.
Wiring between the rear doors is sufficient, and the switch member can be arranged near the child-proof mechanism of each rear door, so it is easy to secure the space for its arrangement.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an example of a door lock device according to the present invention. The door lock device 30 is attached to the door, and when the door is closed, the locking portion 34
engages the vehicle body to keep the door closed. This locking portion 34 is connected to a lever 33, and when the lever 33 is moved via the rod 32 by operating a door handle (not shown), the locking portion 34 and the vehicle body are disengaged and the door is opened. It's starting to open.
Further, the door lock device 30 is provided with a childproof lever 31.
1, the lever 33 and the locking portion 34 can be disconnected and reconnected, and the lever 31 is operated by an electromagnetic device.

FIG. 2 is an electrical circuit diagram showing an example of a child-proof mechanism used in the door lock device of the present invention.

This electric circuit operates a hand-operated right child-proof switch 1, a left child-proof switch 2, a right child-proof motor 4, a left child-proof motor 5, which are electromagnetic devices, and the left and right child-proof switches 1 and 2. In response, the childproof control unit 3 outputs an activation signal for the left and right childproof motors 4, 5.
It has a control unit 3a and a second control unit 3b. In the first and second control units 3a and 3b, corresponding identical parts are given the same numbers, and the alphabets are divided into a and b, for example 11a and 11b, and the two are shown in correspondence. Furthermore, a power line 6a from a battery 6 is also connected to the childproof control unit 3, and a power terminal 7 connected to this power line 6a is connected to power terminals 7a and 7b of the first and second control units 3a and 3b. and connect the resistor 8 to the power supply line 6a.
A, a constant voltage terminal 9 connected via a Zener diode 8b, and a capacitor 8c is the constant voltage terminal 9 of the first and second control units 3a, 3b.
Connect to a and 9b.

The left and right child-proof motors 4 and 5 both have actuation motors 4a and 5a and an actuation switch 4.
The actuating switches 4b, 5b are configured to be switched after the actuating motors 4a, 5a are operated and the child proof is switched from on to off or from off to on.

FIG. 1 shows a state in which the left and right child-proof switches 1 and 2 are both on, and the operation switches for the child-proof motors 4 and 5 are both on. In this state, the (-) side of the first trigger capacitor 13a of the first control unit 3a is connected via the diode 11a, the line 1a, and the right child-proof switch 1, and through the diode 12a, the line 2a, and the left child-proof switch 2. It is grounded through
Since the (+) side is connected to the constant voltage supply circuit,
It is in a charged state. Therefore, the base is the first
The first terminal connected to the (+) side of the trigger capacitor 13a
1PNP transistor 14a is off.
The emitter of the first PNP transistor 13a is connected to the constant voltage terminal 9a, and the collector is connected to the (+) side of the first relay capacitor 15a, the ground and the
They are connected to the base of the 1NPN transistor 16a through respective resistors. Also, since the (-) side of the first relay capacitor 15a is grounded,
The first relay capacitor 15a is in a discharged state, the base current of the first NPN transistor 16a is zero, and this transistor 16a is also off.
The emitter of the first NPN transistor 16a is grounded, and the collector is connected to the constant voltage power supply 7a and the ON terminal 19a of the first relay switch 18a via the first relay coil 17a. Since the first NPN transistor 16a is off, the first relay coil 17a is de-energized, and the first relay switch 1
8a connects the first output line 21a and an off terminal 20a connected to ground. The first output line 21a is connected in parallel to the left and right actuating switches 4b and 5b via the left and right actuating motors 4a and 5a. The operating switches 4b, 5b are on terminals 4c,
5c, and the on-terminals 4c and 5c are connected to the second output line 21b via on-side diodes 4e and 5e. In addition, the operating switches 4b, 5
OFF terminals 4d and 5d of b are on-side diodes 4
It is connected to the second output line 21b via off-side diodes 4f and 5f wired in the opposite direction to e and 5e.

On the other hand, the (-) side of the second trigger capacitor 13b of the second control unit 3b connects the left and right childproof switches 1 and 2 to the off state via the diode 11b and line 1b, or via the diode 12b and line 2b. Connect to terminals 1b and 2b. For this reason, the second
Although the trigger capacitor 13b is in a discharged state, the base current of the second PNP transistor 14b is zero, so the second PNP transistor 14b is off, and the second relay capacitor 15b is in a discharged state. Transistor 16b is off, second relay coil 17b is de-energized, and second output line 21b is connected to ground via second relay switch 18b.

The case when the right child proof switch 1 is turned off from this state will be described below. When you turn off the right child-proof switch 1,
Line 1a is disconnected from earth and line 1b is connected to earth instead. Even if the connection between the line 1a and the ground is cut off, the (-) side of the first trigger capacitor 13a is connected to the ground via the line 2a and the left child-proof switch 2, so the first control unit 3a remains unchanged. is maintained in the state of

When the line 1b is connected to ground, the (-) side of the second trigger capacitor 13b is grounded, and therefore this capacitor 13b begins to be charged. Therefore, the second PNP transistor 1
From the base of 4b to the second trigger capacitor 13b
A current flows to the (+) side of the transistor, and the second PNP transistor 14b is turned on. 2nd PNP transistor 14
When b turns on, second relay transistor 1
5b while charging the second NPN transistor 16b.
energizes the base of the transistor 16b to turn on the transistor 16b. Therefore, the second relay coil 17b is energized and excited, and the second relay switch 18
b to the on terminal 19b, and the second output line 21
b is connected to the power supply terminal 7b.

Therefore, the power supply voltage is applied from the second output line 21b to the on-side diodes 4e, 5e, and the operating motor 4.
a, 5a to the first output line 21a, and is grounded from the first output line 21a via the first relay switch 18a.
a and 5a are driven. When the actuating motors 4a, 5a are driven, the child proof which has been in the actuated state is released, and then the actuating switches 4b, 5b are switched to be connected to the off terminals 4d, 5d.

Note that when the second trigger capacitor 13b completes charging, the base current of the second PNP transistor 14b disappears, and this transistor 14b is turned off. When the second PNP transistor 14b is turned off, the second relay capacitor 15b, which has been charged up to that point, begins to discharge, and when this discharge ends, the base current of the second NPN transistor 16b disappears, and this transistor 16b is turned off.
When the second NPN transistor 16b is turned off, the second relay coil 17b is de-energized, the second relay switch 18b is turned off, and the second output line 21b is connected to ground again. in this way,
After operating the right child proof switch 1,
The operating motors 4a, 5a are energized for a predetermined period of time from when the second trigger capacitor 13b is charged until the second relay capacitor 15b is discharged, and this predetermined period of time is longer than the operating time of the operating motors 4a, 5a. It is set as follows.

Above are the left and right child proof switches 1,
We have explained the operation when the right child-proof switch 1 is turned off from the state in which both 2 and 2 are on, but when the left child-proof switch 2 is turned off from the state where both are on, the second trigger capacitor 1
Since the (-) side of 3b is grounded via line 2b, the second control unit 3b is operated in the same manner as above, and both the left and right child proofs are released.

In this way, both child proofs can be released by simply operating either the left or right child proof switch.

The same thing as described above occurs when one of the child-proof switches 1 and 2 is turned on from the off state. That is, when one of the switches 1 and 2 is turned on from the off state, the first control unit 3a operates to output the operating motors 4a and 5a from the first output line 21a, contrary to the above case. 2nd through
A current flows through the output line 21b, and both the left and right childproof switches are turned on.

In addition, in the embodiment shown above, an example was shown in which an electric motor is used as the electromagnetic device, but an electromagnetic solenoid may be used instead of this electric motor.

3 and 4 are views showing one example of the door lock device of the present invention, FIG. 3 showing the child-proof mechanism when it is released, and FIG. 4 showing the child-proof mechanism when it is in operation. When the child-proof mechanism is released, as shown in Fig. 3, if you operate the inner handle (not shown) provided on the inside of the door for opening and closing the door,
The second rod 72 is pushed down via the first rod 71. Therefore, the lower end 72a of the second rod 72 pushes down one end of the release lever 73, the release lever 73 is rotated counterclockwise, and the protrusion of the claw lever 74 that engages with the protrusion of the release lever 73 moves the release lever 73. The claw lever 74 is pushed up by the protrusion 73 and rotated clockwise.
Therefore, the claw lever 74 and the fork 76 are disengaged, the fork 76 is rotated clockwise by a spring (not shown), and the fork 76 is disengaged from the striker 75, opening the door.

When the child-proof mechanism is in operation, the motor 4a is driven to rotate the child-proof lever 78 clockwise via the third rod 77, as shown in FIG. This lower end 72a is moved to the center right.
can now be lowered through the elongated hole in the release lever 73. Therefore, even if the inner handle (not shown) is operated in this state, the lower end 72 of the second rod 72
The lever a only moves up and down in the elongated hole, but the release lever 73 is not rotated and the door cannot be opened.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a door lock device according to the present invention, Fig. 2 is an electric circuit diagram showing an example of a childproof mechanism used in the door lock device of the present invention, and Figs. FIG. 3 is a front view showing the operation of the invented door lock device. 1, 2... Child proof switch, 3...
...Childproof control unit,
4, 5... Child-proof motor, 6... Battery, 7, 7a, 7b... Power terminal, 9, 9
a, 9b... Constant voltage terminal, 13a... First trigger capacitor, 14a... First PNP transistor, 15a... First relay capacitor, 16a
...First NPN transistor, 30...Door lock device, 75...Striker, 78...Child-proof lever.

Claims (1)

[Scope of Claim for Utility Model Registration] A child-proof mechanism provided on each of the rear doors on both sides of an automobile, two electromagnetic devices that respectively operate these child-proof mechanisms, and two electromagnetic devices provided on each of the rear doors and each of the electromagnetic devices described above. The device includes two switch members that respectively operate the device, and first and second control units connected to both of the two electromagnetic devices, and either one of the two switch members operates the child-proof mechanism. 1. A door lock device for an automobile, characterized in that when the door lock device is switched to a position where the door lock device is turned on, one of the two control units is actuated to actuate both electromagnetic devices on both sides.