JP2665418B2 - Door unlocking 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 device for unlocking a door of, for example, an automobile, and in particular, when a signal is issued from an unlock signal generating means, the signal is decoded to automatically unlock the door. The present invention relates to a door lock release device provided with a mechanism for performing a lock operation.

[0002]

2. Description of the Related Art Recently, for example, some automobiles are equipped with a so-called wireless door lock device. For example, a transmitter is provided on an ignition key, and when a driver emits a radio signal (airborne signal) from the transmitter, a reception signal discriminating means provided on the vehicle body decodes the radio signal and outputs the radio signal. Is a specific signal set for the vehicle, the door is automatically locked by operating an electric actuator, or the lock is automatically released.

[0003]

The above-mentioned wireless door lock device can automatically lock and unlock the door simply by pressing the operation button of the transmitter, which is very convenient in use. is there.

[0004] However, while the wireless door lock device has the above convenience, if the electric actuator breaks down, the door cannot be opened unless another means for releasing the lock is provided.

[0005] Therefore, even in a vehicle equipped with a wireless door lock device, a manual operation mechanism is usually provided as in the past. As is well known, when the ignition key is inserted into a key cylinder provided on a door and the rotor is turned, the link mechanism gives a release displacement to the door lock mechanism based on the rotation of the rotor. The lock is released.

For this reason, when a person other than the owner operates the key cylinder and turns the rotor, there is a possibility that the lock is released.

[0007] The present invention has been made in view of the above circumstances, purpose of that is, in order to unlock the door automatically, an electric to unlock the lock mechanism when a specific signal is issued In the case where a manual operation mechanism is provided in addition to the type operation mechanism, there is no possibility that the door will be unlocked even if the key cylinder is operated unless a specific signal is issued. Release signal generator
If the signal can no longer be output from the stage, the lock can be released.
To provide a that door lock release device.

[0008]

[0009]

In order to achieve the above object, a door unlocking device according to the present invention comprises a key cylinder, and inserts a key into a rotor of the key cylinder and rotates the rotor in the unlocking direction. A manual operation mechanism for unlocking the door by applying a release displacement to the door lock mechanism based on the rotation of the rotor, and an electric operation for unlocking the lock mechanism by unlocking the electric actuator. Mechanism and
When the received signal is a specific signal, a reception signal discriminating means for unlocking the electric actuator of the electric operation mechanism, wherein the manual operation mechanism has the rotor in the unlock direction. when wound, the inhibit mechanism to switch to the connected state providing the release displacement isolated state and a lock mechanism so as not to give a release displacement to the lock mechanism is provided, the reception signal discrimination means,
When the received signal is a specific signal, the inhibit mechanism is configured to be connected, and the rotor
Detecting means for detecting insertion of a key into the rotor, and the rotor
Is turned in one direction and the other from the neutral position.
Signal generating means for generating a signal corresponding to the turning direction;
While the means detects the insertion of the key into the rotor,
Where the signal generated from the signal generation means is determined in advance.
When the rotor rotation pattern is constant, the electric operating machine
Unlock the electric actuator of the
Or rotor rotation pattern that connects the inhibit mechanism
And a line discriminating means .

[0010]

[0011]

A signal is issued from the unlock signal generating means to automatically unlock the door. Then, when the signal is a specific signal, the electric actuator of the electric operation mechanism performs a lock release operation to release the lock of the door by the lock mechanism.

In order to manually unlock the door, an unlock signal generating means generates an airborne signal. Then, only if the signal is a specific signal to the inhibit Organization in engaged status. Therefore, when the key is inserted into the key cylinder and the rotor is turned, the manual operation mechanism gives a release displacement to the lock mechanism based on the rotation of the rotor, and unlocks the door.

At the time of unlocking, if no signal is issued from the unlock signal generating means, or if the signal is issued but the signal has a content different from the specific signal, the inhibit mechanism is kept in the cut-off state. Because
Even when the rotor is turned, no release displacement is given to the lock mechanism, and the lock of the door is not released.

On the other hand, when it becomes impossible to issue a signal from the unlock signal generating means, a key is inserted into the key cylinder and its rotor is rotated in a specific pattern in the forward and reverse directions. If the rotation pattern is a specific pattern, the electric actuator of the electric operation mechanism performs an unlocking operation or the inhibit mechanism is in a connected state .
You . For this reason, the lock mechanism is unlocked by an electric actuator of an electric operation mechanism or by inserting a key into a key cylinder and rotating its rotor.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings, applying to an automobile.

In FIG. 2, reference numeral 1 denotes a lock mechanism provided on a door (not shown). When a lock displacement is given, the lock mechanism 1 engages with a locking portion on the vehicle body side to lock the door in a closed state. When a release displacement in a direction opposite to the lock displacement is given, the lock is released. The lock mechanism 1 can be operated both electrically and manually.

First, an electric operation mechanism 2 for electrically operating the lock mechanism 1 includes an electromagnet 3 for locking and an electromagnet 4 for unlocking as electric actuators. When the lock electromagnet 3 is energized by the door lock / unlock switch 5 shown in FIG. 1 provided on the door on the driver's seat side, the movable iron core (not shown) is attracted to the lock electromagnet 3 and displaced. The mechanism 1 is configured to apply a lock displacement to lock the door in a closed state.
When the door-unlocking / unlocking switch 5 is energized to the unlocking electromagnet 4, the movable core (not shown) is attracted to the unlocking electromagnet 4 and displaced in a direction opposite to that at the time of locking. It is configured to apply a displacement to unlock the door.

The manual operation mechanism 6 for manually operating the lock mechanism 1 uses a key cylinder 7 provided on a door (not shown) as a manual operation source. This key cylinder 7
A rotor 9 is rotatably provided in the rotor case 8 so that an ignition key 10 can be inserted into the rotor 9 from a key insertion opening 9a. The rotor 9 is connected to an ignition key 10
Accordingly, the rotary operation is performed from the neutral position in the lock direction indicated by the arrow A and the unlock direction indicated by the arrow B opposite thereto. The rotational movement of the rotor 9 in the lock direction and the lock release direction is given to the lock mechanism 1 via the link mechanism 11 as a lock displacement and a release displacement.

The link mechanism 11 includes a swing arm 12 fixed to the rear end of the rotor 9 of the key cylinder 7, a swing arm 13 provided on the lock mechanism 1 side, and a link between the swing arms 12 and 13. An upper rod 14 and a lower rod 15 are provided so as to be connected. Then, when the rotor 9 is turned in the lock direction indicated by the arrow A and the turning arm 12 turns in the same direction, the upper rod 14 is moved in the pulling direction indicated by the arrow C. Also, when the rotor 9 is rotated in the unlocking direction indicated by the arrow B and the turning arm 12 turns in the same direction, the upper rod 14 is moved in the pushing direction indicated by the arrow D opposite to the arrow C. It is configured.

An inhibit mechanism 16 is provided between the upper rod 14 and the lower rod 15. The inhibit mechanism 16 transmits the displacement of the upper rod 14 in the pushing direction when the rotor 9 is rotated in the unlocking direction to the lower rod 15 or prevents the displacement from being transmitted to the lower rod 15. is there.

In FIG. 3 showing a specific structure of the inhibit mechanism 16, reference numeral 17 denotes a sleeve. The upper rod 14 and the lower rod 15 are provided inside both ends of the sleeve 17.
Is slidably inserted. Large diameter portions 14a and 15a are formed at the ends of both rods 14 and 15, and large diameter portions 14a and 1a are formed.
By locking 5 a to the end of the sleeve 17, the rods 14 and 15 are configured not to come off the sleeve 17.

At the center of the sleeve 17, there is provided a biaxial motor 18 which can be rotated forward and backward as an electric actuator, and screw rods 19 and 20 are fixed to both ends of the rotary shaft 18a. Have been. The external threads of these two threaded rods 19 and 20 are formed so that the winding directions are opposite to each other. And 22 are screwed. In addition,
The nut members 21 and 22 are prevented from rotating by engaging the protrusions 21a and 22a protruding from the outer peripheral portion with the grooves 17a formed in the inner peripheral surface of the sleeve 17 so as to extend in the axial direction. ing.

When the motor 18 rotates in the forward direction, the nut members 21 and 22 slide in the opening directions indicated by arrows E and F, respectively. Then, as shown in FIG. 3, the nut members 21 and 22 abut against the large diameter portions 14a and 15a of the upper rod 14 and the lower rod 15, and press the large diameter portions 14a and 15a against both ends of the sleeve 17, and The rod 14 and the lower rod 15 are connected.

In this connection state, the upper rod 14 is
, The displacement is transmitted to the lower rod 15 via the nut member 21, the screw rod 19, the rotating shaft 18a, the screw rod 20, and the nut member 22 in order,
The lower rod 15 moves in the same direction. This lower rod 1
By the movement in the pushing direction of 5, the turning arm 13 is turned in the direction of arrow G to give the lock mechanism 1 a release displacement.

When the motor 18 rotates in the reverse direction,
Both nut members 21 and 22 are indicated by arrows E and F, respectively.
Slides in the opposite closing direction. Then, as shown in FIG. 4, both nut members 21 and 22 and both rods 14
A gap is formed between the large-diameter portions 14a and 15a of the upper and lower rods 15 and 15, and the connection between the upper rod 14 and the lower rod 15 is interrupted. In this interrupted state, even if the upper rod 14 moves in the pushing direction shown by the arrow D, the upper rod 14 only slides alone, and the movement displacement is lower rod 15
Is not transmitted to Therefore, even if the rotor 9 rotates in the unlocking direction, the link mechanism 11 does not apply the unlocking displacement to the lock mechanism 1.

As described above, only when the inhibit mechanism 16 is in the connected state, the link mechanism 11 is rotated based on the rotation of the rotor 9 in the unlocking direction.
Is given a release displacement to release the lock. The inhibit mechanism 16 is configured to be in a shut-off state when the lock mechanism 1 is in a locked state.

By the way, when the rotor 9 is rotated in the locking direction indicated by the arrow A, the moving direction of the upper rod 14 is the pulling direction, so that the inhibit mechanism 16 is in either the connected state or the disconnected state. The movement of the upper rod 14 in the pulling direction is transmitted to the lower rod 15 via the sleeve 17. Then, when the lower rod 15 moves in the pulling direction shown by the arrow C, the turning arm 13 is turned in the direction opposite to the arrow G to give the lock mechanism 1 a lock displacement. Therefore, when the rotor 9 is rotated in the locking direction,
Even when the inhibit mechanism 16 is in either the connected state or the cut-off state, the lock mechanism 1 can be locked.

The ignition key 10 is provided with a transmitter (not shown) as a lock release signal generating means, and a lock-side operation button 23 for transmitting the transmitter and a lock release button. Operation button 2
4 are provided. Although not shown, a battery is housed in the ignition key 10 and the transmitter uses the battery as a power source. Then, the operation buttons 23, 24
Is operated, the transmitter performs a transmitting operation to transmit a lock command and an unlock command from the ignition key 10 as an airborne signal, for example, a radio signal. Then, the radio signal is received by the antenna 25 of the automobile shown in FIG. The radio signal is configured as a code signal of several tens of bits, and the content of the code is different between the lock command and the unlock command, and the lock command and the unlock command are respectively set to specific codes for each vehicle. .

The radio signal received by the antenna 25 is transmitted to a code discriminating circuit 26 as a received signal discriminating means. The code determination circuit 26 determines whether the code of the received radio signal is a specific code specified for the vehicle and whether the code is a lock command or an unlock command. If the code is a specific code, in response to a lock command, the lock electromagnet 3 of the electric operation mechanism 2 is energized to lock the lock mechanism 1. In response to the lock release command, the lock mechanism 1 is energized by energizing the lock release electromagnet 4 of the electric operation mechanism 2.
Is unlocked, and the inhibit mechanism 16
The rotation of the motor 18 in the forward direction causes the inhibit mechanism 1 to rotate.
6 is connected.

On the other hand, the unlocking electromagnet 4 of the electric operation mechanism 2 is also energized by rotating the rotor 9 of the key cylinder 7 in a predetermined rotation pattern set for each automobile. That is, a shutter 27 that is opened by inserting the ignition key 10 is provided in the key insertion opening 9a of the rotor 9 as shown in FIG. A shutter switch 28 that operates in conjunction with the opening operation of the shutter 27 is provided. The shutter switch 28 is made to function as a detection unit that detects that the ignition key 10 is inserted into the rotor 9. Make up.

A protruding piece 9b is provided at the rear end of the rotor 9 as shown in FIG. The rotor case 8 has a forward rotation detection switch 29, which is a proximity switch, for example, which is a signal generating means for detecting that the rotor 9 has been rotated from the neutral position in the forward locking direction and the backward unlocking direction. Rotation detection switch 3
0 is provided.

As shown in FIG. 1, the detection signals of the shutter switch 28, the forward rotation detection switch 29, and the reverse rotation detection switch 30 are input to a rotor rotation pattern discriminating circuit 31 as a rotor rotation pattern discriminating means.
The rotation pattern discriminating circuit 31 detects the forward rotation detection switch 29 and the reverse rotation detection switch 29 while the detection signal is being input from the shutter switch 28, that is, before the ignition key 10 is inserted into the rotor 9 and extracted. By detecting the order in which the switch 30 operates, the pattern in which the rotor 9 is rotated is detected. Then, the rotor rotation pattern determination circuit 3
1 is configured so that when the detected rotation pattern of the rotor 9 matches a specific rotation pattern determined for the vehicle, the lock release electromagnet 4 of the electric operation mechanism 2 is energized.

Next, the operation of the above configuration will be described.

When the driver leaves the vehicle, the operation button 2 on the lock side of the ignition key 10 is used to lock the door.
3 is operated. Then, the ignition key 10
A lock command is issued as a radio signal, and the radio signal is received by the antenna 25 and the code discrimination circuit 26
Is transmitted to The code discriminating circuit 26 energizes the locking electromagnet 3 of the electric operating mechanism 6 only when the radio signal is a specific code. As a result, a lock displacement is given to the lock mechanism 1 to lock the door in the closed state, and the motor 18 of the inhibit mechanism 16 rotates in the opposite direction in conjunction with the locking operation of the lock mechanism 1, thereby causing the inhibit mechanism to rotate. 16 is turned off.

Now, in order to unlock the door to drive the automobile, the operation button 24 on the unlocking side of the ignition key 10 is operated. Then, an unlock command is issued as a radio signal from the ignition key 10, and the radio signal is received by the antenna 25 and transmitted to the code discrimination circuit 26. The code determination circuit 26 determines whether the radio signal is a specific code. If the radio signal is a signal of a specific code, the code discrimination circuit 26 energizes the unlocking electromagnet 4 of the electric operating mechanism 2 and rotates the motor 18 of the inhibit mechanism 16 in the forward direction. The inhibit mechanism 16
Is connected. The energization of the lock release electromagnet 4 causes a release displacement to be given to the lock mechanism 1, thereby releasing the lock of the door.

When the radio signal is not a specific code, the code discrimination circuit 26 does not energize the unlocking electromagnet 4 and does not rotate the motor 18 of the inhibit mechanism 16 in the forward direction. Therefore, the lock mechanism 1 remains locked and the door cannot be opened.

When the door is locked, it is assumed that a person other than the driver tries to unlock the door and inserts a foreign object into the rotor 9 of the key cylinder 7 and turns the same in the unlocking direction. Then, the turning arm 12 turns in the unlocking direction indicated by the arrow B, and moves the upper rod 14 in the pushing direction indicated by the arrow D. However, since the inhibit mechanism 16 is in the shut-off state shown in FIG. 4 and there is a gap between the upper rod 14 and the nut member 21, the upper rod 14 slides alone with respect to the sleeve 17, The displacement is not transmitted to the lower rod 15. For this reason, even if the rotor 9 is rotated in the unlock direction, the lock mechanism 1 remains locked and the door cannot be opened.

Therefore, unless the radio signal emitted from the ignition key 10 is a specific code, the inhibit mechanism 16 cannot be switched to the connected state. Therefore, even if the manual operation mechanism 6 is provided,
Cannot illegally unlock the door.

On the other hand, if the unlocking electromagnet 4 of the electric operating mechanism 2 fails, the unlocking electromagnet 4
Then, the lock of the lock mechanism 1 cannot be released. In such a case, the door is unlocked by the manual operation mechanism 6. For this purpose, first, an ignition release command is issued from the ignition key 10 as a radio signal. Then, in the same manner as described above, the inhibit mechanism 1
6 rotates in the forward direction to bring the inhibit mechanism 16 into a connected state.

Then, the ignition key 10 is inserted into the rotor 9 and rotated in the unlocking direction. Then, since the turning arm 12 rotates in the same direction to move the upper rod 14 in the pushing direction, the displacement in the pushing direction is transmitted to the lower rod 15 via the inhibit mechanism 16 in the connected state, and The rod 15 is moved in the pushing direction. Due to the movement of the lower rod 15 in the pushing direction, the turning arm 13 is turned in the direction of the arrow G to give the lock mechanism 1 a release displacement. As a result, the lock mechanism 1 performs an unlock operation to unlock the door. Therefore, even if the electric operation mechanism 2 breaks down, the lock mechanism 1 can be unlocked by the manual operation mechanism 6.

When the battery, which is the power source of the oscillator, is exhausted due to long-term use and power is lost, the ignition key 1
From 0, radio signals cannot be transmitted. Therefore, the door cannot be unlocked depending on the radio signal. In such a case, the ignition key 10 is inserted into the rotor 9 of the key cylinder 7, and the rotor 9 is rotated in the forward and reverse directions in a specific rotation pattern. Then, detection signals are output from the forward rotation detection switch 29 and the reverse rotation detection switch 30, and the rotor rotation pattern determination circuit 31 detects the rotation pattern of the rotor 9 based on the detection signals. If the rotation pattern of the rotor 9 is a specific pattern, the rotor rotation pattern discriminating circuit 31 energizes the unlocking electromagnet 4 of the electric operating mechanism 2, and the lock mechanism 1 unlocks. Operate to unlock the door.

In the above embodiment, the inhibit mechanism 16 is configured to be connected by the radio signal of the unlock command. However, this is because the inhibit mechanism 16 is connected by the radio signal of a code different from that of the unlock command. You may make it.

In the above embodiment, when the rotation pattern of the rotor 9 is a specific pattern, the unlocking electromagnet 4 of the electric operation mechanism 2 is controlled by the rotor rotation pattern discriminating circuit 31 in order to cope with battery consumption. However, the lock may be manually released by rotating the motor 18 of the inhibit mechanism 16 in the forward direction to bring the inhibit mechanism 16 into a connected state.

Further, in the above embodiment, the aerial radio signal was used as a radio signal, but this may be an ultrasonic signal, an infrared signal, or the like. A configuration in which a large number of pores are formed in the ignition key 10, while a light emitting and receiving device is provided in the key cylinder 7, and when the ignition key 10 is inserted into the key cylinder 7, a specific signal is generated in response to light passing through the pores. It may be.

In addition, the present invention is not limited to the embodiment described above and shown in the drawings.
Various other configurations are conceivable as the specific structure of the rotary arm 12.
The rotation arm 9
It may be configured to transmit to or not transmit to the door, and is not limited to unlocking the door of a car, and can be widely applied to a general door unlocking device. It can be changed and implemented.

[0046]

As described above, according to the present invention, the following excellent effects can be obtained.

That is, when the rotor of the key cylinder is turned in the unlocking direction , the manual operating mechanism is switched between a cut-off state in which the locking mechanism is not released and a coupling state in which the locking mechanism is released. An inhibit mechanism for switching is provided, and when the received signal discriminating means receives a specific signal, the inhibit mechanism is operated to be in a connected state, so that no signal is emitted from the unlock signal generating means, or If the signal is different from the specific signal even if it is issued, the inhibit mechanism is kept in the cut-off state. Is not unlocked. Therefore, even if the rotor is rotated incorrectly, there is no possibility that the lock is released.

In addition, it is detected in what pattern the rotor is turned in one direction and the other direction from the neutral position before the key is inserted into the rotor and before the key is removed. When the rotor rotation pattern is set, the electric actuator of the electric operation mechanism is operated to release the lock or the inhibit mechanism is operated to be in the connected state, so that the signal can be issued from the unlock signal generating means. Even if it disappears, by inserting the key into the key cylinder and rotating the rotor in a specific pattern in the forward and reverse directions,
The door can be unlocked by an electric operating mechanism or by a manual operating mechanism.

[Brief description of the drawings]

FIG. 1 is an overall mechanical and electrical connection configuration diagram showing an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing a manual operation mechanism of a lock mechanism.

FIG. 3 is an enlarged longitudinal sectional view showing the inhibit mechanism in a connected state.

FIG. 4 is an enlarged longitudinal sectional view showing the inhibit mechanism in a cut-off state;

FIG. 5 is an enlarged perspective view showing a related configuration of a rotor shutter and its switch.

FIG. 6 is a configuration diagram of a switch for detecting a rotation direction of a rotor.

[Explanation of symbols]

1 is a lock mechanism, 2 is an electric operation mechanism, 3 is a locking electromagnet, 4 is an unlocking electromagnet (electric actuator), 6 is a manual operation mechanism, 7 is a key cylinder, 9 is a rotor, 10 is an ignition key, 11 is a link mechanism,
Reference numerals 12 and 13 denote pivot arms, 14 an upper rod, 15 a lower rod, 16 an inhibit mechanism, 17 a sleeve, 18
Motor, the code determining circuit 26 (reception signal determination means), the shutter switch 28 (detecting means), 29,3
0 is a forward rotation / reverse rotation detection switch (signal generation means);
Reference numeral 1 denotes a rotor rotation pattern determination circuit (rotor rotation pattern determination means).

Claims (1)

(57) [Claims] A key cylinder is provided, and a key is inserted into a rotor of the key cylinder and the rotor is turned in an unlocking direction, thereby giving an unlocking displacement to a door locking mechanism based on the rotation of the rotor to unlock the door. A manual operation mechanism, an electric actuator that includes an electric actuator, and unlocks the lock mechanism by an unlocking operation of the electric actuator; and an electric actuator of the electric operation mechanism when a received signal is a specific signal. Receiving signal discriminating means for unlocking the lock mechanism, wherein the manual operation mechanism is configured to prevent the lock mechanism from being released when the rotor is rotated in the unlock direction. An inhibit mechanism for switching between a state and a coupling state for applying a release displacement to the lock mechanism; The No. discriminating means, when the received signal is a specific signal, said inhibit mechanism as well as configured in the connection mode, and detecting means for detecting the insertion of the key into the rotor, one the rotor from the neutral position Turned in one direction and the other
Signal generating means for generating a signal according to the direction of rotation
And the detecting means detects insertion of a key into the rotor.
The signal generated from the signal generating means is
When the predetermined rotor rotation pattern is
Releases the electric actuator of the
Or a rotor with an inhibit mechanism connected
A door lock release device provided with a rotation pattern determining means .