JPH10121810A - Door lock release device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve usability in a door lock release device for vehicle in which a locking condition of a door lock mechanism is released by utilizing a portable transmitter and receiver. SOLUTION: When a door knob 19 is turned and operated, the start of the turn operation is detected by a start switch 7 consisting of a pressure sensor to start a transmitter and receiver 3, and a door lock mechanism 9 is released when a distinguishing code agrees with a registration code. Furthermore, when the door knob 19 is turned and operated to a predetermined position, the door lock mechanism 9 is unlocked. Consequently, it is possible to prolong the time until the distinguishing code is read and release a locking condition of the door lock mechanism 9 and unlock it in a good condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door lock in which a locked state of a door lock mechanism is released when an identification code transmitted from a portable transceiver matches a previously set registration code. It relates to a release device.

[0002]

Conventionally, when an identification code transmitted from a portable transceiver to a transceiver on the vehicle side coincides with a previously set registration code, the lock state of the door lock mechanism is locked. There is a configuration in which a start switch is provided on the back side of the driver's seat door outer handle.

In this device, when a door knob is operated to a switch operation rotation position during operation to a predetermined rotation position, an activation switch is turned on, and an activation signal is output from the activation switch to the transmitting / receiving device. Then, the transmission / reception device is activated, and a power signal is transmitted from the transmission / reception device to the transceiver. Then, the identification code is transmitted from the transceiver to the transmission / reception device, and the locked state of the door lock mechanism is released when the identification code matches the registration code. Thereafter, when the door knob is operated to the above-described predetermined rotation position, the door is unlocked and the door can be opened on condition that the locked state of the door lock mechanism is released.

However, in the above-described configuration, it takes a certain amount of time from when the start switch is turned on when the door knob is operated to the switch operation turning position to when the identification code is decoded, so that the door is not operated. If the door knob is operated to a predetermined rotation position where the door lock mechanism is to be unlocked before the lock state of the lock mechanism is released, the door cannot be opened and the usability is poor. Was.

The present invention has been made in view of the above circumstances, and has as its object to lock a door lock mechanism when an identification code transmitted from a portable transceiver matches a registration code set in advance. It is an object of the present invention to provide a vehicle door unlocking device capable of improving usability when a state is released.

[0006]

According to the present invention, there is provided a door unlocking device for a vehicle, which is activated to give an operation signal to a portable transceiver to receive an identification code transmitted from the transceiver. A start switch that is always provided so that the operation unit is pressed by the door knob of the door outer handle, detects that the operation of the door knob has been started by releasing the press, and starts the transmission / reception unit; Release means for releasing the lock state of the door lock mechanism when the identification code matches a preset registration code, and unlocking the door lock mechanism when the door knob is operated to a predetermined rotation position. And an unlocking means for unlocking.

According to the vehicle door unlocking device having the above structure, when the door knob of the door outer handle is operated and the pressing of the operating portion of the start switch is released, the operation of the door knob is started by the start switch. The transmission / reception means is activated upon detection of this, and the transmission / reception means gives an operation signal to the transceiver and receives an identification code transmitted from the transceiver. When the identification code matches the registered code, the unlocking means releases the locked state of the door lock mechanism. Further, when the door knob is operated to a predetermined rotation position, the door locking mechanism is unlocked by the unlocking means. The mechanism is unlocked.

Thus, when the door knob is operated, the transmitting / receiving means is immediately activated to transmit the operation signal, so that the time required for decoding the identification code can be made longer than in the conventional case. The locked state of the door lock mechanism can be successfully released and unlocked, and the usability can be improved.

In the vehicle door unlocking device having the above structure, the start switch may be constituted by a pressure sensor provided on a handle bracket of the door outer handle. As a result, the pressure sensor operates in conjunction with the operation of the door knob, and the transmission / reception unit is activated earlier.

Further, in the vehicle door unlocking device having the above-described structure, the pressure sensor may have a shock absorbing function of absorbing an impact generated between the door knob and the handle bracket. Thereby, the impact generated between the door knob and the handle bracket when the door knob is returned to the original position can be absorbed by the pressure sensor.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. First, regarding the electrical configuration,
This will be described with reference to FIG. The control device 2 provided in the vehicle body 1 includes a transmission / reception device 3 as transmission / reception means and an ID code collation control device 4. The transmitting / receiving device 3 has a function of transmitting a magnetic signal (power signal) for activating a transmitting / receiving device 6 described later as a request signal (operation signal in the present invention) by the antenna 5 and is transmitted from the transmitting / receiving device 6. It has a function of receiving a magnetic signal including an identification code as a response signal. Further, a start switch 7 described later is connected to the transmitting / receiving device 3.
Are activated when an activation signal is given from the activation switch 7.

The ID code collation control device 4 decodes the identification code received by the transmission / reception device 3, determines whether the identification code matches a preset registration code, and determines whether the identification code matches the registration code. Then, a lock release command signal is output to the electric actuator 8 of each door, which is a release means. When a lock release command signal is given, the electric actuator 8 is configured to release a locked state of a door lock mechanism 9 (see FIG. 1) described later by energizing an unlocking electromagnet (not shown).

The specific structures of the door outer handle 10 on the vehicle body 1 side and the transceiver 6 will be described with reference to FIGS. Transceiver 6 described above
Is constituted by an IC card 11. The IC card 11 includes an antenna 12 composed of a coil, a capacitor 13 connected in parallel to both ends of the antenna 12, and a control circuit 1 composed of an IC connected to both ends of the parallel circuit.
And 4.

In the IC card 11, when the antenna 12 receives the request signal, the request signal is given to the control circuit 14, and the control circuit 1
4 is activated by a given request signal, and supplies a drive signal to a parallel circuit including the antenna 12 and the capacitor 13. The antenna 12 is driven by a drive signal, and transmits a magnetic signal including an identification code to the antenna 5 of the vehicle body 1 as a response signal.

The door outer handle 10 is connected to a handle bracket 16 fixed to the door 15 and an L-shaped support piece 17 protruding from an upper portion of the handle bracket 16 via a shaft 18 as shown by an arrow A in FIG. And a door knob 19 provided rotatably in the direction.

As shown in FIG. 3, the lower half of the outer surface side (left side in FIG. 1) of the handle bracket 16 is formed of a square rod-shaped ferrite core 20 and an enamel wire wound around the ferrite core 20. The above-described antenna 5 composed of an antenna coil 21 and a resin antenna case 22 that covers the ferrite core 20 and the antenna coil 21 is attached.

The door knob 19 is located on the inner surface side (right side in FIG. 1) of the handle bracket 16, and is located above the handle bracket 16, with an operating portion 23 having a recess 23 a for catching a finger. , And an arm portion 24 extending upward is integrally formed.

The start switch 7 is provided on the upper part of the inner surface of the handle bracket 16. Door knob 1
9, the protrusion 23b forming the recess 23a includes:
A pressing member 26 is provided so as to face the start switch 7.

The start switch 7 is composed of a strain gauge type pressure sensor. When the pressing member 26 is always in contact with the pressure sensor (the state shown in FIGS. 1 and 3), the operating switch 7 is a pressure receiving portion. When the pressure is applied to the pressure receiving member 7a and the pressing member 26 is separated to release the pressing of the pressure receiving portion 7a, the activation signal is output to the transmitting and receiving device 3 by changing the resistance of the strain gauge. ing. The pressure sensor constituting the start switch 7 is as follows.
The pressure receiving portion 7a is made of, for example, a cushioning material such as rubber, so that a shock at the time of contact can be absorbed.

A claw 2 is provided at an intermediate position of the arm 24.
4a is formed on one end 27a of the torsion coil spring 27 wound around the shaft 18 on the claw portion 24a.
Is locked. The other end 27b of the torsion coil spring 27 is provided with a claw 17a formed on the support piece 17.
Thus, the door knob 19 is urged in the direction indicated by the arrow A by the spring force of the torsion coil spring 27 and is held at the position shown in FIG.

Further, an elongated hole 28 is formed at the upper end of the arm 24, and the end of the hole 28 is an L-shaped unlocking means via a link bracket 29. Link 30 has been inserted. The link 30 is always located on one end 28a side of the hole 28 (FIG. 1).
And the state shown in FIG. 3), the door knob 19 is turned in the direction of arrow A, and the other end 28b of the hole 28 is
Is in contact with the link bracket 29 and the link bracket 2
By pressing 9, the link 30 moves in the direction of arrow B in FIG.

Then, in response to the movement of the link 30, the latch mechanism of the door lock mechanism 9 connected to the link 30 is released on condition that the locked state of the door lock mechanism 9 is released, and the door 15 is disengaged. Is permitted to be released.

Next, the operation of the above configuration, particularly, the case where the user releases the locked state and gets on the vehicle when the door lock mechanism 9 is in the locked state will be described with reference to FIGS. I do. First, in a state where the IC card 11 and the transmission / reception device 3 of the vehicle body 1 can communicate with each other, the user puts his / her finger on the concave portion 23a of the door knob 19, and
9 is rotated in the direction of arrow A. At this time, door knob 1
In response to the turning operation of 9, the pressing member 26 also turns, that is, the pressing of the pressure receiving portion 7 a of the start switch 7 is released, and the start signal is output to the transmission / reception device 3.

At this time, the hole 28 of the arm 24 is
The other end 28a of the hole 28 does not contact the link bracket 29 immediately. That is, the link 30 does not move since the hole 28 swings with respect to the link 30 (see FIG. 4).

Now, the transmitting / receiving device 3 that has received the activation signal
Transmits the magnetic signal of the power signal from the antenna 5 to the IC card 1
Send to 1. The IC card 11 receives the magnetic signal transmitted from the transmission / reception device 3 by the antenna 12 as a request signal, and the control circuit 14 is activated when the request signal is given, and the drive signal is transmitted to a parallel circuit including the antenna 12 and the capacitor 13. give. The antenna 12 is connected to the control circuit 1
Upon receiving the drive signal from the control unit 4, the magnetic signal including the identification code is returned to the antenna 5 of the vehicle body 1 as a response signal.

When the control device 2 receives the response signal transmitted from the IC card 11 by the antenna 5, the ID code collation control device 4 decodes the identification code included in the response signal and outputs the identification code. Is determined to match with a preset registration code. Then, when the identification code matches the registration code, a lock release command signal is output to the electric actuator 8 of each door. When the unlocking command signal is given, the electric actuator 8 energizes and drives the unlocking electromagnet to unlock the door lock mechanism 9.

When the door knob 19 is subsequently turned in the direction of arrow A from this state, the other end 28b of the hole 28 of the arm 24 comes into contact with the link bracket 29 (see FIG. 5). ). And from that state,
When the door knob 19 is further turned to a predetermined turning position, the other end 28b of the hole 28 presses the link bracket 29, so that the link 30 moves in the direction of arrow B in FIG. 1 (see FIG. 6). In response to the movement of the link 30, the door lock mechanism 9 is operated, and the latch mechanism for inhibiting the opening operation of the door 15 is released (unlocked).
You will be able to get on.

As described above, according to the present embodiment, the door knob 1
When the rotation operation of the transmission 9 is performed, the start switch 7 detects that the rotation operation has been started, the transmission / reception device 3 is activated, and when the identification code matches the registration code, the door lock mechanism 9 is released. Further, since the door lock mechanism 9 is unlocked when the door lock mechanism 9 is rotated to a predetermined position, the time required until the identification code is decoded can be made longer than in the conventional case. Become. Thereby, the locked state of the door lock mechanism 9 can be successfully released and unlocked, and the usability can be improved.

In particular, the start switch 7 composed of a pressure sensor
To the handle bracket 16 of the door outer handle 10.
, The start switch 7 operates in conjunction with the turning operation of the door knob 19 quickly, and the transmitting and receiving device 3 is started earlier.

Further, since the pressure receiving portion 7a of the start switch 7 is formed of a buffer, a shock generated between the door knob 19 and the handle bracket 16 when the door knob 19 is returned to the original position by the torsion coil spring 27. It can be absorbed and there is no need to separately provide a buffer member.

The present invention is not limited to the above embodiment, but can be modified or expanded as follows. The transceiver 6 may be configured to be built in the grip portion of the ignition key instead of the IC card 11. Transceiver 6
A trigger signal for activating the transceiver 6 is transmitted from the transmission / reception device 3 to the transmission / reception device 6, and the magnetic signal is transmitted from the transmission / reception device 6 to the transmission / reception device 3 accordingly. Alternatively, a radio signal may be transmitted. The start switch 7 may be constituted by a pressure sensor of a piezoelectric type or a capacitance type, instead of a strain gauge type, or a contact type machine using an inverted leaf spring called a so-called “peco plate”. It may be constituted by a dynamic switch.

[0032]

As is apparent from the above description, in the vehicle door unlocking device according to the first aspect, when the door knob of the door outer handle is operated and the pressing of the operating portion of the start switch is released. The activation switch detects the start of the operation of the door knob, activates the transmission / reception means, and when the identification code matches the registration code, the release means releases the locked state of the door lock mechanism. The door lock mechanism is unlocked by the unlocking means when the door knob is operated to a predetermined rotation position.

As a result, when the door knob is operated, the transmission / reception means is activated immediately, so that the time required for decoding the identification code can be increased as compared with the conventional one, and the lock of the door lock mechanism can be increased. The state can be successfully released and unlocked, and the usability can be improved.

In the vehicle door unlocking device according to the second aspect, the start switch is constituted by the pressure sensor provided on the handle bracket of the door outer handle. Therefore, the pressure sensor operates in conjunction with the operation of the door knob. As a result, the transmission / reception means is activated earlier.

In the vehicle door unlocking device according to the third aspect, the pressure sensor is configured to have a buffering action for absorbing an impact generated between the door knob and the handle bracket. When the door knob is returned to the original position, the shock generated between the door knob and the handle bracket can be absorbed.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram showing an electrical configuration.

FIG. 3 is a longitudinal sectional front view of a door outer handle and an antenna.

FIG. 4 is a view corresponding to FIG. 1, showing a state in which a door knob is operated and a start switch is turned on.

FIG. 5 is a view corresponding to FIG. 1, showing a state where a door knob is subsequently operated.

FIG. 6 is a view corresponding to FIG. 1, showing a state in which the doorknob is further operated to move the link.

[Explanation of symbols]

In the drawings, 3 is a transmitting / receiving device (transmitting / receiving means), 6 is a transmitting / receiving device, 7 is a start switch, 7a is a pressure receiving section (operating section), 8 is an electric actuator (release means), 9 is a door lock mechanism, and 10 is a door outer. Handle, 19 is a door knob, 30
Is a link (unlocking means).

Claims (3)

[Claims] 1. A transmitting / receiving means for giving an operation signal to a portable transceiver by being activated to receive an identification code transmitted from the transceiver, and an operation unit is always pressed by a door knob of a door outer handle. And a start switch for detecting that the operation of the door knob is started by releasing the pressing thereof and activating the transmitting / receiving means, and when the identification code matches a preset registration code. A release means for releasing a locked state of the door lock mechanism, and an unlocking means for unlocking the door lock mechanism when the door knob is operated to a predetermined rotation position. Door unlocking device. 2. The vehicle door unlocking device according to claim 1, wherein the activation switch comprises a pressure sensor provided on a handle bracket of the door outer handle. 3. The door unlocking device for a vehicle according to claim 2, wherein the pressure sensor has a shock absorbing function of absorbing an impact generated between the door knob and the handle bracket.