JPH0517057U - Door lock release device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Prevents the door from being unlocked by unauthorized means. A cam 18 is rotatably provided on a case 17 of a lower rod 15 of a manual operation mechanism that unlocks a lock mechanism by rotating a rotor of a key cylinder, and a non-circular insertion hole 22 is formed in the cam 18. At the same time, the lower end portion of the upper rod 14 is formed into a non-circular pressing portion 14b. Then, the inhibit mechanism 16 is configured such that the cam 18 is normally and reversely rotated by the plunger 28 that is reciprocally moved by the electromagnet 27. This inhibit mechanism 1
When a specific radio wave signal is emitted from the transmitter 6, the code discriminating circuit 6 decodes the radio wave signal to rotate the cam 18 so that the insertion hole 22 matches the pressing portion 14b of the upper rod 14 and does not match. Switch to. Then,
The downward displacement, which is the unlocking displacement of the upper rod 14, is transmitted to the cam 18 and thus the lower rod 15, and the door is unlocked.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door unlocking device configured to unlock a door by inserting a key into a rotor of a key cylinder and turning the key.

[0002]

[Prior Art]

 For example, in a car, the door can be manually locked and unlocked.

As is well known, in this manual operation mechanism, when an ignition key is inserted into a key cylinder provided in a door and a rotor thereof is rotated, a link mechanism becomes a door lock mechanism according to a rotation direction of the rotor. It is configured to give a lock displacement or a release displacement to lock the door or release the lock.

[0004]

[Problems to be solved by the device]

 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 operates the key cylinder to operate the rotor. It may be unlocked when turned.

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

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the door unlocking device of the present invention unlocks the door locking mechanism based on the rotation of the rotor by inserting a key into the rotor of the key cylinder and rotating the rotor in the unlocking direction. In a device provided with a manual operation mechanism for applying a displacement to release the lock, one of the rotor-side component member and the lock mechanism-side component member of the manual operation mechanism is rotatably provided and has a non-circular shape. The rotating member having an insertion hole, a non-circular pressing portion provided on the other side, and the connected state in which the pressing member abuts the rotating member by rotating the rotating member using an electric actuator as a drive source A rotation driving mechanism for switching the portion to a blocking state in which the portion passes through the insertion hole, and when the rotor is turned in the unlocking direction, the rotor side structure is in the coupled state. The displacement of the member is transmitted to the component on the lock mechanism side to give the release displacement to the lock mechanism, so that the displacement of the component on the rotor side is not transmitted to the component on the lock mechanism side in the cutoff state. An inhibit mechanism that is in a cutoff state when in a locked state and a reception signal determination means that drives the electric actuator so that the inhibit mechanism is in a connected state when a received signal is a specific signal are provided. It is characterized by that.

[0007]

[Action]

 When a signal is issued from the unlocking 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 rotated, the manual operation mechanism applies the releasing displacement to the lock mechanism based on the rotation of the rotor to unlock the door.

At the time of unlocking, if the signal is not issued or if the signal has a content different from the specific signal even if issued, the inhibit mechanism is left in the cutoff state, so the rotor is rotated. However, the unlocking displacement is not given to the lock mechanism, and the door is not unlocked.

[0009]

【Example】

 An embodiment in which the present invention is applied to an automobile will be described below with reference to FIGS. 1 to 9.

In FIG. 6, reference numeral 1 denotes a lock mechanism provided on a door (not shown). When the lock mechanism 1 is given a lock displacement, the lock mechanism 1 engages with a locking portion on the vehicle body side to lock the door in a closed state. However, when the release displacement in the opposite direction to the lock displacement is given, the lock is released. The lock mechanism 1 can be operated both electrically and manually.

First, the electric operation mechanism 2 that electrically operates the lock mechanism 1 includes an electromagnet 3 for locking and an electromagnet 4 for unlocking as an electric actuator. Then, when the lock electromagnet 3 is energized by the door lock / unlock switch 5 shown in FIG. 7 provided on the driver side door, the movable iron core (not shown) is attracted to the lock electromagnetic stone 3 and displaced. The lock mechanism 1 is configured to apply a lock displacement to lock the door in a closed state. Further, when the unlocking electromagnet 4 is energized by the door lock / unlock switch 5, the movable iron core (not shown) is attracted by the unlocking electromagnet 4 and displaced in the opposite direction to the locking state, and the locking mechanism 1 The door is unlocked by applying a release displacement to 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. A rotor case 8 of the key cylinder 7 is rotatably provided with a rotor 9, and an ignition key 10 can be inserted into the rotor 9 through a key insertion opening 9a. The rotor 9 is rotated by the ignition key 10 from the neutral position in the lock direction indicated by the arrow A and in the lock release direction indicated by the arrow B opposite thereto. The rotational movements of the rotor 9 in the lock direction and the lock release direction are given to the lock mechanism 1 via the link mechanism 11 as lock displacement and release displacement.

The link mechanism 11 includes a revolving arm 12 fixed to the rear end of the rotor 9 of the key cylinder 7, a revolving arm 13 provided on the lock mechanism 1 side, and revolving arms 12 and 13 thereof. The upper rod 14 and the lower rod 15 are provided so as to connect the two. Then, when the rotor 9 is rotated in the lock direction indicated by arrow A and the rotation arm 12 is rotated in the same direction, the upper rod 14 is moved in the pulling direction indicated by arrow C. When the rotor 9 is pivotally operated in the unlocking direction indicated by the arrow B and the pivot arm 12 pivots in the same direction, the upper rod 14 is moved in the pushing direction indicated by the arrow D opposite to the arrow C. 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 causes the displacement in the pushing direction of the upper rod 14, which is a constituent member of the manual operation mechanism 6 on the rotor 9 side, to be the same as that of the manual operation mechanism 6. It is transmitted to the lower rod 15, which is a component of the lock mechanism 1 side, or is prevented from being transmitted to the lower rod 15.

In FIGS. 1 and 2 showing the specific structure of the inhibit mechanism 16, 17 is a case fixed to the upper end portion of the lower rod 15, and this case 17 is a stepped portion in which the lower half portion has a smaller diameter. A cylindrical cam 18 having a cylindrical shape and serving as a rotating member is rotatably fitted to the lower portion of the upper half portion. A projection 18a is provided on the outer peripheral surface of the cam 18, and a cam groove 19 whose lower end surface is an inclined surface 19a is formed. Further, a circular hole 20 is formed in the center of the cam 18, and, for example, three projecting pieces 21 project inwardly on the inner peripheral surface of the lower end of the circular hole 20. Due to the presence of the projecting piece 21, the lower end portion of the circular hole 20 is configured as a non-circular insertion hole 22.

As shown in FIG. 3, the protrusion 18 a of the cam 18 is fitted in a groove 17 a formed along the circumferential direction on the inner peripheral surface of the case 17, and the protrusion 18 a and one end inner surface of the groove 17 a. A compression coil spring 23 is arranged between the two. The cam 18 is urged to rotate in the direction of arrow E by the compression coil spring 23.

An electromagnet 27, which is formed by winding a coil 26 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, a hollow plunger 28 made of, for example, plastic is slidably arranged. Permanent magnets 29, 30 are provided on the large-diameter portions 28a, 28b on the upper and lower sides of the plunger 28, and the polarities of the permanent magnets 29, 30 are set to be upside down as shown in the drawing. There is. A projecting piece 28c extends downward on the large diameter portion of the lower side of the plunger 28, and the projecting piece 28c is inserted into the cam groove 19 of the cam 18. The projecting piece 28c is fitted in a vertically extending groove 17b formed on the inner peripheral surface of the case 17, whereby the plunger 28 is prevented 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. A groove 14a larger than the protruding piece 22 is formed in the lower end portion of the upper rod 14 so as to be able to pass through the insertion hole 22 of the cam 28, and the groove 14a is formed with a protrusion 14b. There is. Due to the existence of the groove 14a and the protrusion 14b, the lower end 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 is inserted so as to be inserted through the insertion hole 22. A nut 31 is screwed to the lower end of the screw rod 14d protruding 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 source, and the polarity of the DC power source applied to the coil 26 can be reversed. When a DC power source is applied to the coil 26 so that the upper side of the yoke 25 becomes the N pole and the lower side becomes the S pole, the attractive force and repulsive force acting between the yoke 25 and the permanent magnets 29 and 30 cause The plunger 28 slides downward. Conversely, when a DC power is applied to the coil 26 so that the upper side of the yoke 25 becomes the S pole and the lower side becomes the N pole, the repulsive force and the attractive force acting between the yoke 25 and the permanent magnets 29 and 30 cause Plunger 28 slides up. After the plunger 28 moves upward and downward, the coil 26 is cut 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. , It is held in the position where it moved downward.

When the plunger 28 moves downward as described above, the protruding piece 28 c of the plunger 28 comes into contact with the lower end inclined surface 19 a of the cam groove 19 and exerts a pressing force, so that the cam 18 moves from the state shown in FIG. It rotates in the direction of arrow F against the elastic force of the compression coil spring 20. At the position where the cam 18 is rotated in the direction of the arrow F, as shown in FIG. 5, the protruding piece 21 of the insertion hole 22 is in a blocked state in which it is aligned with the groove 14 a of the lower rod 14. In this cutoff state, when the upper rod 14 moves in the pushing direction, the pressing portion 14c of the upper rod 14 projects below the cam 18 through the insertion hole 22, and the upper rod 14 moves in the pushing direction. The displacement is not transmitted to the lower rod 15, so that even if the rotor 9 is rotated in the unlocking direction, the lock of the door is not unlocked.

On the contrary, when the plunger 28 moves upward, the protruding piece 28c is separated from the inclined surface 19a, so that the cam 18 rotates from the state of FIG. 5 in the arrow E direction by the elastic force of the compression coil spring 20. At the position where the cam 18 is rotated in the direction of arrow E, the protruding piece 21 of the insertion hole 22 is in a connected state in which the protruding piece 21 of the lower rod 14 is aligned with the protruding line 14b. In this connected state, when the upper rod 14 moves in the pushing direction indicated by the arrow D, the protrusion 14b comes into contact with the protruding piece 21, and the displacement in the pushing direction is transmitted to the cam 18 and thus the lower rod 15 to cause the lower rod to move. 15 moves in the same direction to turn the turning arm 13 in the direction of arrow G to give the lock mechanism 1 a releasing displacement.

From the above, the link mechanism 11 locks the link mechanism 11 by releasing the displacement based on the rotation of the rotor 9 in the unlocking direction only when the cam 18 of the inhibit mechanism 16 is in the connected state. Will be canceled. The cam 18 is configured such that when the locking mechanism 1 is in the locked state, the plunger 28 is in the downwardly moved position as shown in FIG. 1 and is in the shut-off state shown in FIG. ..

By the way, since the moving direction of the upper rod 14 is the pulling direction when the rotor 9 is rotationally operated in the locking direction indicated by the arrow A, 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 indicated by the arrow C, the revolving arm 13 is revolved 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 lock direction, the lock mechanism 1 can be locked regardless of whether the cam 18 is in the connected state or the disconnected state.

Therefore, the ignition key 10 is provided with a transmitter (not shown) as a lock release signal generating means, and as shown in FIG. 4, a lock-side transmitter for operating the transmitter is operated. An operation button 32 and an unlock-side operation button 33 are provided. Although not shown, the ignition key 10 houses a battery, 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 a lock command and an unlock command from the ignition key 10 as an air propagation signal, for example, a radio signal. .. Then, the radio signal is received by the antenna 34 of the vehicle shown in FIG. The radio signal is composed of a code signal of several tens of bits, the content of the code is different between the lock command and the unlock command, and the lock command and the unlock command are set to a specific code for each vehicle. ing.

The radio signal received by the antenna 34 is transmitted to the code discriminating circuit 35 as a received signal discriminating means. The code discriminating circuit 35 discriminates whether the code of the received radio wave signal is a specific code defined for the vehicle, and whether the code is a lock command or an unlock command. If the code is a specific code, the lock electromagnet 3 of the electric operation mechanism 2 is energized to lock the lock mechanism 1 in response to the lock command. In response to a lock release command, the lock release electromagnet 4 is energized to unlock the lock mechanism 1, and the electromagnet 27 of the inhibit mechanism 16 is energized so that the plunger 28 moves upward. Then, the cam 18 is configured to be 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 vehicle. That is, a shutter 36 that is opened by inserting the ignition key 10 is provided at 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, and this shutter switch 37 functions as a detection means for detecting that the ignition key 10 is inserted in the rotor 9. Is configured.

Further, as shown in FIG. 9, a projecting piece 9b is projectingly provided on the rear end portion of the rotor 9. The rotor case 8 has a forward rotation detecting switch 38, which is, for example, a proximity switch, as signal generating means for detecting that the rotor 9 has been rotated from the neutral position in the positive locking direction and the reverse locking release direction. And a reverse rotation detection switch 39 is provided.

The detection signals from 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, as shown in FIG. The rotor rotation pattern determination circuit 40 operates the normal 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 the time when the ignition key 10 is inserted into the rotor 9 and the time when the ignition key 10 is extracted. By detecting in what order the rotation detection switch 39 operates, it is detected in what pattern the rotor 9 is rotated. Then, the rotor rotation pattern determination circuit 40 energizes the unlocking electromagnet 4 of the electric operation mechanism 2 when the detected rotation pattern of the rotor 9 matches a specific rotation pattern defined for the vehicle. Is configured to.

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

It is assumed that the driver operates the lock-side operation button 32 of the ignition key 10 to lock the door when the driver leaves the vehicle. Then, a lock command is issued from the ignition key 10 as a radio signal, and the radio signal is received by the antenna 34 and transmitted to the code discrimination circuit 35. The code discriminating circuit 35 supplies electricity to the lock electromagnet 3 of the electric operation mechanism 6 only when the radio signal is a specific code. As a result, the lock mechanism 1 is given a lock displacement to lock the door in the closed state, and the electromagnet 27 is moved so as to move the plunger 28 of the inhibit mechanism 16 downward in conjunction with the lock operation of the lock mechanism 1. Energize to turn the cam 18 off.

Now, in order to unlock the door to drive the automobile, the operation button 33 on the unlock side of the ignition key 10 is operated. Then, an unlock command is issued from the ignition key 10 as a radio wave signal, and the radio wave signal is decoded by the code discrimination circuit 35 in the same manner as described above. When the radio signal is a signal of a specific code, the code determination circuit 35 energizes the unlocking electromagnet 4 of the electric operating mechanism 2 and causes the electromagnet 27 of the inhibit mechanism 16 to move to the plunger. The cam 18 is connected by energizing so that the cam 28 moves upward. By energizing the unlocking electromagnet 4, the unlocking displacement is given to the lock mechanism 1, and the lock of the door is unlocked.

When the radio signal is not the specific code, the code determination 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.

By the way, when the door is locked, it is assumed that a person other than the owner tries to unlock the door and operates the key cylinder 7 to rotate the rotor 9 in the unlocking direction. Then, the revolving arm 12 revolves in the unlocking direction shown by the arrow B and moves the upper rod 14 in the pushing direction shown by the arrow D. However, because the cam 18 is in the shut-off state shown in FIG. 5, the upper rod 14 slides alone, and its displacement is not transmitted to the lower rod 15. Therefore, even if the rotor 9 is rotated in the unlocking 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 is provided. The door cannot be unlocked illegally by 6.

On the other hand, when the lock releasing electromagnet 4 of the electric operation mechanism 2 fails, the lock releasing electromagnet 4 cannot release the lock of the lock mechanism 1. In this case, the door is unlocked by the manual operation mechanism 6. For that purpose, first, a lock release command is issued as a radio signal from the ignition key 10. Then, similarly to the above, the electromagnet 27 of the inhibit mechanism 16 is energized to bring the cam 18 into the connected state.

Therefore, 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 transmitted to the lower rod 15 via the cam 18 in the connected state shown in FIG. Then, the lower rod 15 is moved in the pushing direction. By the movement of the lower rod 15 in the pushing direction, the revolving arm 13 is rotated in the arrow G direction, and the lock mechanism 1 is released. As a result, the lock mechanism 1 unlocks and unlocks the door. Therefore, even if the electric operation mechanism 2 fails, the lock mechanism 1 can be unlocked by the manual operation mechanism 6.

Further, when the battery, which is the power source of the oscillator, is consumed due to long-term use and power is lost, it becomes impossible to transmit a radio signal from the ignition key 10. For this reason, 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 with 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. Then, when the rotation pattern of the rotor 9 is a specific pattern, the rotor rotation pattern determination circuit 40 energizes the unlocking electromagnet 4 of the electric operating mechanism 2, whereby the lock mechanism 1 is activated. It unlocks and unlocks the door.

In the above embodiment, the inhibit mechanism 16 is connected by the radio signal of the unlock command, but the cam 18 is connected by the radio signal of a code different from the lock command. You may choose to.

In addition, in the above-described embodiment, in order to cope with the consumption of the battery, when the rotation pattern of the rotor 9 has a specific pattern, the rotor rotation pattern determination circuit 40 causes the unlocking electromagnet of the electric operation mechanism 2. 4 is energized to release the lock, but this may be configured to energize the electromagnet 27 of the inhibit mechanism 16 to bring the cam 18 into the connected state and manually release the lock.

Furthermore, in the above embodiment, the airborne signal is a radio wave signal, but it may be an ultrasonic wave signal, an infrared signal, etc., and the unlock signal generating means is not limited to the transmitter, but may be, for example, A large number of fine holes are formed in the ignition key 10, while a light emitting / receiving device is provided on the key cylinder 7 side. When the ignition key 10 is inserted into the key cylinder 7, the light passing through the fine holes is received and a specific signal is received. It may be configured to emit.

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.

10 and 11 show other different embodiments of the present invention. First, in the inhibit mechanism shown in FIG. 10, one permanent magnet 42 is attached to the plunger 41, and the electromagnets 43 and 44 are attached to the case 17 so as to be positioned on the upper and lower sides of the plunger 41. By energizing 44 so that the plunger 41 moves upward, the cam 18 is brought into a connected state in which the protruding piece 22 is aligned with the protruding line 14b of the upper rod 14, and conversely, the plunger 41 is moved downward by both electromagnets 43 and 44. By energizing the cam 18 so that the cam 18 moves to the above position, the cam 21 is configured to be in a shut-off state in which the protruding piece 21 matches the groove 14a of the upper rod 14.

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

In the embodiment shown in FIG. 11, the coil 46 is wound around the plunger 45 to form the electromagnet 47, and the permanent magnets 48 and 49 are provided on the case 17 so as to be located on both upper and lower sides of the plunger 45. It is configured such that the plunger 45 is moved upward and downward by reversing the polarity of the DC power supply that is attached and applied to the electromagnet 47.

With the configuration as shown in FIGS. 10 and 11, the same effect as that of the above-described embodiment can be obtained.

A motor may be used as the electric actuator for rotating the cam 18 in the forward 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.

Besides, the present invention is not limited to the embodiments described above and shown in the drawings, and is not limited to, for example, a door unlocking device of an automobile, but can be widely applied to a device for unlocking a door in general. Various modifications can be implemented without departing from the scope of the invention.

[0049]

[Effect of the device]

 As described above, according to the present invention, the manually operated mechanism is provided with a shut-off state and a lock mechanism that prevent the lock mechanism from being disengaged when the rotor of the key cylinder is rotated in the lock release direction. By providing an inhibit mechanism for switching to the connected state that gives the release displacement, and when the signal emitted from the unlock signal generating means is a specific signal, the inhibit mechanism is configured to be in the connected state, so that the signal is generated. If the signal is different from the specific signal even if it is not issued or is emitted, the inhibit mechanism is left in the cutoff state, and therefore the lock mechanism is released even when the rotor is rotated. This is an excellent effect that there is no risk that the door will be unlocked by unauthorized means.

[Brief description of drawings]

FIG. 1 is a vertical 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 taken along the line III-III in FIG.

FIG. 4 is a cross-sectional bottom view of essential parts shown in a connected state.

FIG. 5 is a cross-sectional bottom view of the main part shown in a cutoff state.

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

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

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

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

FIG. 10 is a vertical sectional view of an inhibit mechanism according to 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 operation mechanism, 3 is a locking electromagnet, 4 is an unlocking electromagnet, 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, 12 and 13 are swivel 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 (rotating member), 22 is an insertion hole, 24 is a rotary drive mechanism, 27 is an electromagnet (electric actuator), 28 is a plunger, 2
Reference numerals 9 and 30 denote permanent magnets, 35 is a code determination circuit, 37 is a shutter switch, 38 and 39 are forward and reverse rotation detection switches, 40 is a rotor rotation pattern determination circuit, 41 is a plunger, 42 is a permanent magnet, and 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)

[Scope of utility model registration request] 1. A manual operation mechanism is provided, wherein a key is inserted into a rotor of a key cylinder and the rotor is rotated in an unlocking direction so that a lock displacement of a door is released by the rotation of the rotor to release the lock. The rotary 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 the non-circular member provided on the other. Of the pressing portion and the electric actuator as a drive source, the rotary member is rotated to switch the rotating member between a connected state in which the pressing portion abuts on the rotating member and a shut-off state in which the pressing portion passes through the insertion hole. When the rotor is rotated in the unlocking direction, the displacement of the rotor-side component member is transmitted to the lock mechanism-side component member in the coupled state to lock. A release displacement is applied to the structure to prevent the displacement of the rotor-side constituent member from being transmitted to the lock mechanism-side constituent member in the cut-off state, and the inhibit mechanism in the cut-off state is received when the lock mechanism is in the locked state. A door lock release device, comprising: a received signal determination means for driving the electric actuator so that the inhibit mechanism is in a connected state when the signal is a specific signal.