JPS638265B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an automobile door lock device.

As is well known, when locking a door when parking a car, a car door lock device has one in which a key plate is inserted into a key cylinder, and the lock mechanism is locked by operating the key plate.
There are two types of so-called keyless lock mechanisms in which the lock mechanism can be locked by placing the door inside lock knob in the locked position when the door is closed and closing the door while pulling the door outside handle.

However, the former method is cumbersome because the key plate must be inserted into the key cylinder each time to lock the lock, and there are cases where the user has to fumble around to insert the key plate into the key cylinder, especially at night. It's extremely troublesome. In addition, although the latter method has excellent operability because it does not require key plate operation, it has the problem that it is easy to make a mistake in locking the vehicle while leaving the key plate inside the vehicle.

In view of these conventional problems, the present invention has been developed to lock the door lock mechanism from the outside of the vehicle without requiring troublesome key plate operation, and without leaving the key plate in the vehicle interior as in the case of a keyless lock mechanism. The object of the present invention is to provide a door lock device.

In order to achieve the above object, in the present invention, a magnetic sensing reed switch is actuated by a magnet attached to a key plate or its key holder to operate an actuator, and a locking mechanism is locked by this actuator. A stepped portion is formed to guide the magnet, and the reed switch is disposed on the stepped portion, so that the reed switch placement position can be easily known, and the reed switch can be easily operated using the magnet. There is.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In this embodiment, as shown in FIGS. 1 and 2, a reed switch is disposed on the door outside handle escutcheon as the door side, and 1 is a resin that receives the handle part 2a of the door outside handle 2. The escutcheon 1 is fixed to a door outer panel (not shown). On one side of this escutcheon 1 is a shelf 3.
A door lock key cylinder 4 is assembled on the shelf 3, and a magnetic sensing reed switch 5 which is turned on when a magnet approaches is provided on the back surface of the shelf. Reference numeral 6 indicates a magnet for actuating the reed switch 5, which is embedded in one side of the grip portion 7a of the key plate 7 in this embodiment, but may also be embedded in a key holder (not shown) attached to the key plate 7. It's okay. And the handle part 2a of the door outside handle 2
extends above the shelf 3 of the escutcheon 1, and forms a step for guiding the magnet 6 between the lower edge of the extended portion _2a1 and the shelf 3, thereby creating a step δ. There is. Here, the reed switch 5 is arranged on the shelf 3 near the lower edge of the extended portion _2a1 . With this arrangement, the end of the gripping part 7a of the key plate 7 where the magnet 6 is disposed faces the escutcheon 1 side and engages with the lower edge of the handle part 2a of the door outside handle 2 as shown in FIG. By moving it along the lower edge of the handle portion 2a, the magnet 6 reaches the reed switch 5 disposed portion of the shelf portion 3 and can turn on the reed switch 5.

FIG. 4 shows an example of a door lock circuit including the reed switch 5, in which 11 is a battery;
2 is a fuse; 13 is a timer circuit that supplies a base current for a set time to a transistor 15 connected to a battery 11 via a relay coil 14 when the reed switch 5 is turned on; 18 is a locking mechanism (not shown); An actuator for locking, such as an electromagnetic actuator or a reversible motor, which can be selected according to the structure of the locking mechanism.
In this embodiment, a plurality of actuators 18 are provided in parallel to form a centralized lock system. 1
6, 17 are relay coils and unlock switches connected in series to battery 11, 14A, 16A
is a relay switch that is switched by energizing each relay coil 14, 16, and acts to switch the supply direction of the battery 11 voltage to the actuator 18. A bidirectional Zener diode 19 is connected in parallel to the end of the actuator 18 to absorb the back electromotive force of the actuator 18.

The operation of the embodiment device having the above configuration will be described in detail.

In order to lock the door when parking, a magnet is required, and in this embodiment, a key plate 7 equipped with a magnet 6 is required. Therefore, the driver pulls out the key plate 7 inserted into the ignition key cylinder, gets out of the vehicle, closes the door, and
By bringing the magnet 6 close to the reed switch 5 of the escutcheon 1, the reed switch 5
The lock mechanism can be locked by turning on. Therefore, it is possible to eliminate the trouble of inserting a key plate into the door lock key cylinder 4 and performing a locking operation as in the conventional case. Furthermore, by engaging the gripping portion 7a of the key plate 7 with the lower edge of the door outside handle 2 and sliding it, the magnet 6 can be guided to the location where the reed switch 5 is disposed on the escutcheon shelf 3. The lock can be easily locked even in the darkness of the night.

The aforementioned locking is performed as follows. That is,
In the circuit diagram of FIG. 4, when the reed switch 5 is turned on, the timer circuit 13 is activated and supplies a base current to the transistor 15 for a predetermined period of time. Therefore, the transistor 15 is turned on, current flows from the battery 11 to the relay coil 14, the relay switch 14A is connected to the battery 11 side, and the relay switch 14A and switch 16A cause current to flow in the actuator 18 in a fixed direction. As a result, the lock mechanism of each door is locked by the operation of the actuator 18.

In this way, the door lock mechanism can be easily locked by simply bringing the magnet 6 provided on the key plate 7 or its key holder close to the reed switch 5 of the escutcheon 1 from the outside of the vehicle. Since the aforementioned lock cannot be performed unless the key plate 7 is taken out, it is possible to prevent the key plate 7 from being left behind in the vehicle interior.

On the other hand, when unlocking is performed from outside the vehicle,
Just insert the key plate 7 into the key cylinder 4 and perform the unlocking operation as before. To unlock the vehicle from inside the vehicle, by closing an unlock switch 17 that is linked to a door lock knob (not shown), current is passed from the battery 11 to the relay coil 16, and the relay switch 16A is switched to the battery 11 side.
As a result, current flows in each actuator 18 from the battery 11 via the relay switch 16A in the opposite direction, and the locking mechanism of each door is unlocked by operating the actuator 18 in the opposite direction.

In the embodiment described above, a stepped portion is provided between the handle portion _2a1 of the door outside handle 2 and the escutcheon shelf portion 3 so that the magnet 6 can be guided to the location where the reed switch 5 is disposed.
The shelf 3 itself may be provided with a step to guide the magnet, or in the case of a vehicle that does not use an escutcheon, the door outer panel itself may be provided with a step. Of course, if a stepped portion is formed in the vertical direction as well, the position of the rear switch can be known more reliably.

As described above, according to the present invention, the door lock mechanism is locked from the outside of the vehicle by bringing the magnet attached to the key plate or its key holder close to the magnetic sensing reed switch disposed on the door, and turning on the switch. This is particularly easy to do, and it can be operated even at night because it can be guided to the reed switch installation site by providing a step in the reed switch installation area and moving the magnet along the step. This has the advantage that it can be done reliably and easily. Moreover, this locking operation requires that the key plate be taken out of the vehicle, which eliminates the problem of locking the door while leaving the key plate inside the vehicle. The effects are huge.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the relationship between the door outside handle and its escutcheon in the device of the present invention, and FIG. 2 is a sectional view taken along the line - in FIG.
FIG. 3 is a sectional view of the key plate, and FIG. 4 is an electric circuit diagram showing an example of the device of the present invention. 1... Escutcheon, 2... Door outside handle, 5... Magnetic sensing reed switch, 6
...Magnet, 7...Key plate, 18...
Actuator, δ...step.

Claims (1)

[Claims] 1 A structure in which a magnetic sensing reed switch is actuated by a magnet attached to a key plate or its key holder to operate an actuator, and a locking mechanism is locked by this actuator, and a stepped portion that guides the magnet toward the door side. 1. A door lock device characterized in that the reed switch is disposed in the stepped portion.