JP2536587Y2 - 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 door unlocking device which unlocks a door by inserting a key into a rotor of a key cylinder and turning it.

[0002]

2. Description of the Related Art For example, in an automobile, a door thereof can be manually locked and unlocked.

[0003] 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 is connected to the door lock mechanism in accordance with the rotation direction of the rotor. The door is locked by giving a lock displacement or a release displacement, or the lock is released.

[0004]

However, in the above-mentioned conventional manual operation mechanism, the rotor of the key cylinder and the lock mechanism are always connected by the link mechanism, so that a person other than the owner does not have to. When the key cylinder is operated to rotate the rotor, the lock may be unlocked.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a door unlocking device in which the door is not unlocked even if the key cylinder rotor is turned by an unauthorized means. It is in.

[0006]

In order to achieve the above object, a door unlocking device according to the present invention inserts a key into a rotor of a key cylinder and turns the rotor in the unlocking direction to thereby unlock the rotor. In a device provided with a manual operation mechanism for giving a release displacement to a door lock mechanism based on rotation to unlock the door, one of the rotor-side component and the lock mechanism-side component of the manual operation mechanism is provided. A rotating member rotatably provided with a non-circular insertion hole and a non-circular pressing portion provided on the other side, and an electric actuator as a drive source, the rotating member being rotated so that the pressing portion contacts the rotating member. A rotation drive mechanism for switching between a contacting connection state and a blocking state in which the pressing portion passes through the insertion hole, wherein when the rotor is turned in the unlocking direction, In this state, the displacement of the rotor-side component is transmitted to the lock mechanism-side component to impart a release displacement to the lock mechanism, and in the shut-off state, the displacement of the rotor-side component is not transmitted to the lock mechanism-side component. When the lock mechanism is in the locked state and the inhibit mechanism is in the cut-off state, and when the received signal is a specific signal, the inhibit mechanism is in a connected state.
And a reception signal discriminating means for driving the electric actuator.

[0007]

When a signal is issued from the unlock signal generating means to unlock the door, the inhibit mechanism is switched to the connected state only when the signal is a specific signal. 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.

When the lock is released, if the signal is not issued or if the signal is different from the specific signal even if the signal is issued, the inhibit mechanism is kept in the cut-off state. Also, no release displacement is given to the lock mechanism, and the lock of the door is not released.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an automobile will be described below with reference to FIGS.

In FIG. 6, 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. 7 provided on the door on the driver's seat side, the movable iron core (not shown) is attracted to the lock electromagnet 3 and displaces. 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.

A 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. When the rotor 9 is rotated in the unlocking direction, the inhibit mechanism 16 changes the displacement of the manual operation mechanism 6 in the pushing direction of the upper rod 14, which is a component member on the rotor 9 side, in the same manner as the manual operation mechanism 6. This is transmitted to the lower rod 15, which is a constituent member of the lock mechanism 1 side, or is prevented from being transmitted to the lower rod 15.

1 and 2, which show the specific structure of the inhibit mechanism 16, reference numeral 17 denotes a case fixed to the upper end of the lower rod 15, and this case 17 has a step with a smaller diameter in the lower half. A circular cam 18 serving as a rotating member is rotatably fitted to the lower part of the upper half of a cylindrical shape. A projection 18a is provided on the outer peripheral surface of the cam 18 and a cam groove 19 having a lower end surface formed as an inclined surface 19a.
Are formed. A circular hole 20 is formed in the center of the cam 18, and, for example, three protruding pieces 21 project inward from the inner peripheral surface of the lower end of the circular hole 20. The lower end of the circular hole 20 is formed as a non-circular insertion hole 22 due to the presence of the protrusion 21.

As shown in FIG. 3, the projection 18a of the cam 18 is fitted in a groove 17a formed on the inner peripheral surface of the case 17 along the circumferential direction. A compression coil spring 23 is disposed between the two.
The compression coil spring 23 urges the cam 18 to rotate in the direction of arrow E.

An electromagnet 27 having a coil 26 wound around a ring-shaped yoke 25 is attached to the upper half of the case 17 as an electric actuator of the rotary drive mechanism 24. Inside the yoke 25 of the electromagnet 27, for example, a hollow plunger 28 made of plastic is slidably disposed. Permanent magnets 29, 3 are attached to the large diameter portions 28a, 28b on both the upper and lower sides of the plunger 28.
0 is provided, and the polarities of the two permanent magnets 29 and 30 are set to be upside down as shown in the figure. Then, the projecting piece 2 is provided on the large diameter portion on the lower side of the plunger 28.
8c is extended downward, and the projecting piece 28c is inserted into the cam groove 19 of the cam 18. The protruding piece 28c is fitted in a vertically extending groove 17b formed on the inner peripheral surface of the case 17, thereby preventing the plunger 28 from rotating.

On the other hand, the lower portion of the upper rod 14 is slidably inserted into the circular hole 20 of the cam 18 from the upper end of the case 17 through the hollow inside of the plunger 28. The lower end portion of the upper rod 14 has a groove 1 larger than the protruding piece 22 so that it can pass through the insertion hole 22 of the cam 28.
4a are formed, and the ridges 14 are formed between the grooves 14a.
b. The groove 14a and the ridge 14
Due to the presence of b, the lower end side portion of the upper rod 14 is configured as a non-circular pressing portion 14c. At the lower end of the pressing portion 14c, a small-diameter screw rod 14d that is inserted through the insertion hole 22 is provided.
Is protruding. A nut 31 is screwed to the lower end of the threaded rod 14d projecting downward from the cam 18, and the nut 31 prevents the upper rod 14 from coming off.

The coil 26 of the electromagnet 27 is driven by a DC power supply, and the polarity of the DC power applied to the coil 26 can be reversed. And the yoke 25
When a DC power is applied to the coil 26 so that the upper side of the coil becomes the north pole and the lower side becomes the south pole, the plunger 28 slides downward due to the attraction and repulsion acting between the yoke 25 and the permanent magnets 29 and 30. I do. Conversely, the yoke 25
When a DC power is applied to the coil 26 so that the upper side of the coil becomes the south pole and the lower side becomes the north pole, the plunger 28 slides upward due to the repulsive and attractive forces acting between the yoke 25 and the permanent magnets 29 and 30. I do. After the plunger 28 moves upward and downward, the coil 26 is turned off, but the large-diameter portions 28a and 24b are attracted to the yoke 21 by the magnetic force of the permanent magnets 29 and 30, so that the plunger 24 moves upward. , Held at the position moved downward.

When the plunger 28 moves downward as described above, the protruding piece 28c of the plunger 28 comes into contact with the lower end inclined surface 19a of the cam groove 19 to exert a pressing force.
8 rotates in the direction of arrow F against the elastic force of the compression coil spring 20 from the state shown in FIG. At the position where the cam 18 is rotated in the direction of the arrow F, as shown in FIG. 5, the projecting piece 21 of the insertion hole 22 is in a cut-off state matching the groove 14a of the lower rod 14. In this blocking state, when the upper rod 14 moves in the pushing direction, the pressing portion 14c of the upper rod 14
Through the cam 18, the displacement of the upper rod 14 in the pushing direction is not transmitted to the lower rod 15, and therefore, even if the rotor 9 is rotated in the unlocking direction,
The door is locked so as not to be unlocked.

Conversely, when the plunger 28 moves upward, the projecting piece 28c moves away from the inclined surface 19a.
8 rotates in the direction of arrow E from the state of FIG. 5 by the elastic force of the compression coil spring 20. At the position where the cam 18 is rotated in the direction of the arrow E, the protruding piece 21 of the insertion hole 22 is connected to the protruding ridge 14b of the lower rod 14 as shown in FIG.
In this connection state, when the upper rod 14 moves in the pushing direction indicated by the arrow D, the ridge 14b comes into contact with the protruding piece 21, and the displacement in the pushing direction is transmitted to the cam 18 and thus to the lower rod 15, and the lower rod 15 Moves in the same direction, and turns the turning arm 13 in the direction of arrow G to apply a release displacement to the lock mechanism 1.

As described above, the link mechanism 11 applies the release displacement to the link mechanism 11 based on the rotation of the rotor 9 in the lock release direction to lock the lock only when the cam 18 of the inhibit mechanism 16 is in the connected state. It will be canceled. When the lock mechanism 1 is in the locked state, the cam 18 is configured such that the plunger 28 is at a position moved downward as shown in FIG. 1 and is in a shut-off state as shown in FIG.

Incidentally, since the moving direction of the upper rod 14 is the pulling direction when the rotor 9 is rotated in the locking direction indicated by the arrow A, even if the cam 18 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 cam 18 and thus the lower rod 15 via the nut 31. 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, the locking mechanism 1 can be locked regardless of whether the cam 18 is in the connected state or the disconnected state.

The ignition key 10 is provided with a transmitter (not shown) as a lock release signal generating means, and a lock operation for transmitting the transmitter as shown in FIG. A button 32 and an operation button 33 on the unlock side are provided. Although not shown, a battery is housed in the ignition key 10 and the transmitter uses the battery as a power source.

When the operation buttons 32 and 33 are operated,
The transmitter is operated to transmit and transmit a lock command and an unlock command from the ignition key 10 as an airborne signal, for example, a radio signal. And
The radio signal is received by the automobile antenna 34 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 34 is transmitted to a code discriminating circuit 35 as a received signal discriminating means. The code discriminating circuit 35 discriminates 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 a lock release command, the lock mechanism 1 is unlocked by energizing the unlocking electromagnet 4 and energizing the electromagnet 27 of the inhibit mechanism 16 so that the plunger 28 moves upward. 1
8 is connected.

On the other hand, the unlocking electromagnet 4 of the electric operating 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 36 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 37 that operates in conjunction with the opening operation of the shutter 36 is provided. The shutter switch 37 functions 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 includes a forward rotation detection switch 38 including a proximity switch as signal generation means for detecting that the rotor 9 has been rotated from the neutral position in the forward locking direction and the reverse unlocking direction. Rotation detection switch 3
9 are provided.

As shown in FIG. 7, the detection signals of the shutter switch 37, the forward rotation detection switch 38 and the reverse rotation detection switch 39 are input to a rotor rotation pattern determination circuit 40 as a rotor rotation pattern determination means.
The rotor rotation pattern determination circuit 40 controls the forward rotation detection switch 38 and the reverse rotation detection switch 38 while the detection signal is being input from the shutter switch 37, that is, between when the ignition key 10 is inserted into the rotor 9 and when it is extracted. By detecting the order in which the detection switch 39 operates, the pattern in which the rotor 9 is rotated is detected. Then, when the detected rotation pattern of the rotor 9 matches a specific rotation pattern determined for the vehicle, the rotor rotation pattern determination circuit 40 energizes the unlocking electromagnet 4 of the electric operating mechanism 2. Is configured.

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

When the driver leaves the vehicle, the operation button 3 on the lock side of the ignition key 10 is used to lock the door.
2 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 34 and the code discrimination circuit 35
Is transmitted to The code discriminating circuit 35 energizes the lock 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 electromagnet 27 is moved so that the plunger 28 of the inhibit mechanism 16 is moved downward in conjunction with the lock operation of the lock mechanism 1. Power is supplied to the cam 18 so that the cam 18 is cut off.

Now, in order to unlock the door for driving the automobile, the operation button 33 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 transmitted to the code discrimination circuit 35 in the same manner as described above.
Is decrypted by If the radio signal is a signal of a specific code, the code discriminating circuit 35 energizes the unlocking electromagnet 4 of the electric operating mechanism 2 and the plunger 28 moves the electromagnet 27 of the inhibit mechanism 16 against the electromagnet 27 of the inhibit mechanism 16. The cam 18 is energized so as to move upward to bring the cam 18 into a connected state. The energization of the unlocking electromagnet 4 causes
An unlocking displacement is given to the lock mechanism 1 to unlock the door.

When the radio signal is not a specific code, the code discriminating circuit 35 does not energize the unlocking electromagnet 4 and does not energize the electromagnet 27 of the inhibit mechanism 16. 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 owner attempts to unlock the door and operates the key cylinder 7 to rotate the rotor 9 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 cam 18 is in the blocking state shown in FIG. 5, the upper rod 14 slides alone, and its 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 cam 18 cannot be switched to the connected state. Therefore, even if the manual operation mechanism 6 is provided, the manual operation mechanism 6 The door cannot be unlocked illegally.

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 this 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 electromagnet 27 of the inhibit mechanism 16 is energized to bring the cam 18 into a connected state.

Then, the ignition key 10 is inserted into the rotor 9 and rotated in the unlocking direction. Then, since the revolving arm 12 rotates in the same direction to move the upper rod 14 in the pushing direction, the displacement in the pushing direction is reduced via the cam 18 in the connected state shown in FIG.
5 and the lower 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.

If the battery, which is the power source of the oscillator, is consumed and power is lost due to long-term use, 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 38 and the reverse rotation detection switch 39, and the rotor rotation pattern determination circuit 40 detects the rotation pattern of the rotor 9 based on the detection signals. When the rotation pattern of the rotor 9 is a specific pattern, the rotor rotation pattern discrimination circuit 40 energizes the unlocking electromagnet 4 of the electric operation mechanism 2, and the lock mechanism 1 releases the lock. Operate to unlock the door.

In the above-described embodiment, the inhibit mechanism 16 is configured to be connected by the radio signal of the unlock command. However, the cam 18 is connected by the radio signal of a code different from that of the unlock command. You may do it.

In the above embodiment, when the rotation pattern of the rotor 9 is a specific pattern, the unlocking electromagnet 4 of the electric operating mechanism 2 is controlled by the rotor rotation pattern discriminating circuit 40 in order to cope with battery consumption. The lock is released by supplying power to the electromagnet 27 of the inhibit mechanism 16 to bring the cam 18 into a connected state.
The lock may be manually released.

Further, in the above embodiment, the airborne signal is a radio wave signal, but this may be an ultrasonic signal, an infrared signal, or the like. While a large number of holes are formed in the ignition key 10, a light emitting and receiving device is provided on the key cylinder 7 side, and when the ignition key 10 is inserted into the key cylinder 7, a specific signal is emitted in response to light passing through the hole. It may be of a configuration.

The functions of the code discriminating circuit 35 and the rotor rotation pattern discriminating circuit 40 may be performed by program control by a microcomputer.

FIGS. 10 and 11 show other different embodiments of the present invention. First, the inhibit mechanism shown in FIG. 10 attaches one permanent magnet 42 to the plunger 41, attaches the electromagnets 43 and 44 to the case 17 so as to be positioned on the upper and lower sides of the plunger 41, and attaches the plungers to both electromagnets 43 and 44. When the cam 18 is energized to move upward, the cam 18 is brought into a connected state in which the protruding piece 22 matches the ridge 14 b of the upper rod 14, and conversely, the plunger 41 moves downward to the electromagnets 43 and 44. When the power is supplied to the upper rod 1
The structure is such that the cutoff state matches the groove 14a of No. 4.

In FIG. 10, the permanent magnet 42 of the plunger 41 is omitted, and the plunger 41 is made of iron instead.
May be moved upward, or after energizing the electromagnet 44 to move the plunger 41 downward, the electromagnet 43 or the electromagnet 44 may be continuously energized.

In the embodiment shown in FIG.
A permanent magnet 48, 49 is attached to the case 17 so as to be positioned on the upper and lower sides of the plunger 45, and the electromagnet 47 is formed.
, The plunger 45 is moved upward and downward by reversing the polarity of the DC power supply applied to the power supply.

The same effects as those of the above-described embodiment can be obtained with the configuration shown in FIGS.

Note that a motor may be used as the electric actuator for rotating the cam 18 in the normal and reverse directions. Further, the cam 18 may be provided on the upper rod 14 side, and the pressing portion may be provided on the lower rod 15 side.

In addition, the present invention is not limited to the embodiment described above and shown in the drawings. For example, the present invention can be widely applied to not only a door unlocking device of an automobile but also a door unlocking device in general. Various modifications can be made without departing from the scope of the present invention.

[0049]

As described above, according to the present invention, when the rotor of the key cylinder is turned in the unlocking direction, the manual operation mechanism is provided with the lock state in which the locking mechanism is not released. By providing an inhibit mechanism for switching to a connection state in which a lock mechanism gives a release displacement, and when the signal issued from the lock release signal generating means is a specific signal, the inhibit mechanism is configured to be in a connection state, so that the signal is transmitted. If the signal is not emitted, or if the signal is different from the specific signal even if it is emitted, the inhibit mechanism is left in the cut-off state.
Even when the rotor is rotated, no unlocking displacement is given to the lock mechanism, and there is an excellent effect that there is no possibility that the door is unlocked by unauthorized means.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of an inhibit mechanism showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of an inhibit mechanism.

FIG. 3 is a cross-sectional bottom view as seen from the direction of arrows along line III-III in FIG.

FIG. 4 is a cross-sectional bottom view of a main part shown in a connected state.

FIG. 5 is a cross-sectional bottom view of a main part in a cut-off state;

FIG. 6 is a perspective view of a manual operation mechanism.

FIG. 7 is a mechanical and electrical connection configuration diagram.

FIG. 8 is a perspective view showing a related configuration of a rotor shutter and its switch.

FIG. 9 is a configuration diagram of a switch for detecting a rotation direction of a rotor.

FIG. 10 is a longitudinal sectional view of an inhibit mechanism showing another embodiment of the present invention.

FIG. 11 is a longitudinal sectional view of an inhibit mechanism showing still another embodiment of the present invention.

[Explanation of symbols]

1 is a lock mechanism, 2 is an electric operating mechanism, 3 is a locking electromagnet, 4 is an unlocking electromagnet, 6 is a manual operating mechanism,
7 is a key cylinder, 9 is a rotor, 10 is an ignition key, 11 is a link mechanism, 12 and 13 are swing arms, 1
4 is an upper rod, 14c is a pressing portion, 15 is a lower rod, 16
Is an inhibit mechanism, 17 is a case, 18 is a cam (rotary member), 22 is an insertion hole, 24 is a rotary drive mechanism, 27 is an electromagnet (electric actuator), 28 is a plunger,
9, 30 are permanent magnets, 35 is a code discriminating circuit, 37 is a shutter switch, 38 and 39 are forward rotation / reverse rotation detecting switches, 40 is a rotor rotation pattern discriminating circuit, 41 is a plunger, 42 is a permanent magnet, 43 and 44. Is an electromagnet (electric actuator), 45 is a plunger, 47 is an electromagnet (electric actuator), and 48 and 49 are permanent magnets.

Claims (1)

(57) [Scope of request for utility model registration] 1. A manual operation mechanism for inserting a key into a rotor of a key cylinder and rotating the rotor in an unlocking direction to apply an unlocking displacement to a door locking mechanism based on the rotation of the rotor to unlock the door. A rotating member having a non-circular insertion hole rotatably provided on one of the rotor-side component member and the lock mechanism-side component member of the manual operation mechanism, and a non-circular member provided on the other. And a rotary drive mechanism that switches between a connected state in which the pressing portion abuts the rotating member and a blocking state in which the pressing portion passes through the insertion hole by rotating the rotating member using an electric actuator as a drive source. When the rotor is rotated in the unlocking direction, in the connected state, the displacement of the rotor-side component is transmitted to the lock mechanism-side component to lock the rotor. A release displacement is applied to the frame, so that the displacement of the rotor-side component is not transmitted to the lock mechanism-side component in the shut-off state, and the inhibit mechanism is in the shut-off state when the lock mechanism is in the locked state. A door lock release device, further comprising: reception signal determining means for driving the electric actuator so that the inhibit mechanism is in a connected state when the signal is a specific signal.