JP3107421B2 - 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 for unlocking a door by inserting a key into a key cylinder rotor and turning the key.

[0002]

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

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 locks the lock mechanism in accordance with the rotation direction of the rotor. A door is locked by giving a displacement or a release displacement, and the lock is released.

[0004]

However, in the above-described 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 cannot handle the key cylinder. 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 which does not have the possibility of unlocking a door even if the rotor of a key cylinder is rotated by an unauthorized means. It is in.

[0006]

In order to achieve the above-mentioned object, a door unlocking device according to the present invention comprises a key cylinder.
By inserting a key into the rotor of this key cylinder and rotating the rotor in the locking direction and the unlocking direction, the door lock mechanism is locked based on the rotation of the rotor .
A manual operation mechanism for locking and unlocking giving click displacement and release displacement Bei electric actuator
In addition, the electric actuator can be used in front of the lock mechanism.
The lock and lock displacements are given by
Door lock release with an electric operation mechanism to release lock
In the apparatus , members constituting the manual operation mechanism are provided.
That is, the rotor-side constituent members located on the rotor side are
The lock mechanism side components located on the lock mechanism side
The rotor is turned in the locking direction
The displacement of the rotor side component when the
Transmitted to the structural component, and the rotor is
When the rotor is turned, the displacement of the rotor side component is
The component on the side of the lock mechanism is
To prevent transmission to the lock mechanism side components
And, provided the inhibit mechanism to the connecting portion of both components, the inhibit mechanism is one of the two components
One and the engaged portion provided on a side, the two components of
Chino provided on the other side, the displacement of the rotor-side constituent member when said rotor is rotated in the unlocking direction, the object
The engaged with the engaging portion and the connection state of transmitting the locking mechanism side configuration member and the locking mechanism side configuration member infusible such transmitted to shield the cross-sectional state out of engagement with the engaged portion can switch, an engaging member to which the made connecting shaped on purpose by its own elasticity of the elastic force or the spring member, is configured annularly, among them
The engaged portion is provided on both sides of the constituent members.
The other component is passed through the one component.
The direction of the magnetic pole is
And an intermediate part of the annular electromagnet.
Reciprocating the outer side of the one component as passed through the inside
Movably fitted and supported, located on both sides of the electromagnet
It has a pair of magnets facing the electromagnet, and the electromagnet is
When energized to be in one of the magnetic pole directions, the pair
Magnetic attraction acting on one of the magnets
The engaging member moves in one direction due to a magnetic repulsion force used.
Slidably contact the engaging member against the elastic force.
So that the electromagnet is in the direction of the other magnetic pole.
Acts on one of the pair of magnets when energized
Magnetic repulsion and magnetic attraction acting on the other
By moving in the other direction and disengaging from the engagement member,
The engaging member is brought into a connected state by the elastic force.
A driving member, wherein when the lock mechanism is in a locked state, the engagement member is set to a blocking state , and when a received signal is a specific signal, the engagement member of the inhibit mechanism is connected. To the electromagnet so that
The present invention is characterized in that a receiving signal discriminating means for energizing is provided. In addition, the door unlocking device of the present invention includes a key
A cylinder is provided, and a key is inserted into the rotor of this key cylinder.
The rotor in the locking and unlocking directions.
Turn the door to lock the door based on the rotation of the rotor.
A manual operating mechanism for applying a lock displacement and a release displacement to a lock mechanism to lock and unlock, and an electric actuator
The electric actuator has the lock
The lock and release displacements are given to the mechanism to
Door with electric operation mechanism for unlocking
In the lock release device, the manual operation mechanism is configured.
Among the members, rotor-side constituent members located on the rotor side
To the lock mechanism side constituent member located on the lock mechanism side.
The rotor is locked
The displacement of the rotor-side component when turned in the
The lock is transmitted to the lock mechanism side component, and the rotor is unlocked.
Displacement of the rotor side component when turned in the removal direction is
The rotor-side constituent member corresponds to the lock mechanism-side constituent member.
Slide to prevent transmission to the lock mechanism side components.
And the connecting part of these two components is inhibited.
The inhibit mechanism is provided with the above two components.
The engaged portion provided on one of the members is formed in an annular shape.
Through which the other of the two components passes.
Thus, the coil is provided on the other component and passes through the coil.
An electromagnet whose pole direction can be reversed depending on the
Pass the part inside the annular electromagnet
Is reciprocally fitted and supported on the outside of the
A pair of opposing electromagnets located on both sides of the electromagnet
A magnet is provided so that the electromagnet faces one magnetic pole.
Acts on one of the pair of magnets when energized
Due to magnetic attraction and magnetic repulsion acting on the other,
So that the electromagnet is in the direction of the other magnetic pole.
Acts on one of the pair of magnets when energized
Due to the magnetic repulsion and the magnetic attraction acting on the other,
A driving member which moves in direction, provided on the drive member, before
Said rotor when said rotor is turned in the unlocking direction.
The displacement of the side member is engaged with the engaged portion to
Connection state transmitted to the locking mechanism side component member and the engaged portion
From the lock mechanism side component member.
It can be switched to the closed state, its own elastic force or
An engaging member that is brought into the connection state by the elastic force of a spring member
When, among the both components, provided on the other component member
As the driving member moves in one direction,
The engagement member slides into contact with the elastic member and cuts off.
Instead, the driving member moves in the other direction.
The engagement member is disengaged from the sliding contact, and
Ri and a cam portion to be switched to the connection state, before
When the lock mechanism is in the locked state, the engagement member is blocked.
Configured to be disconnected and the received signal is
When the engagement member of the inhibit mechanism is connected
Receiving signal discriminating means for energizing the electromagnet so that
A step is provided.

[0007]

When a signal is issued from the unlock signal generating means to unlock the door, only when the signal is a specific signal, the electromagnet of the inhibit mechanism is driven to bring the engaging member into the connected state. I do. 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 engaging member of the inhibit mechanism is kept in the cut-off state. Even when the rotor is turned, 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 A first embodiment in which the present invention is applied to an automobile will be described below with reference to FIGS.

In FIG. 4, 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. 5 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. A lock displacement is given to the mechanism 1. 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 provide a displacement.

The manual operation mechanism 6 according to the present invention 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 9 is rotatably provided in a rotor case 8 of the key cylinder 7, and an ignition key 10 can be inserted into the rotor 9 from a key insertion opening 9a. The rotor 9 is rotated by an ignition key 10 from a neutral position in a lock direction indicated by an arrow A and a lock release direction indicated by an 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. When the rotor 9 is turned in the lock direction indicated by the arrow A,
The upper rod 14 is moved in the pulling direction indicated by the arrow C. Further, when the rotor 9 is turned in the unlocking direction shown by the arrow B, the upper rod 14 is moved in the pushing direction shown by the arrow D opposite to the arrow C.

An inhibit mechanism 16 is provided between the upper rod 14 and the lower rod 15. The inhibit mechanism 16, which rotor 9 comes to have been rotated in the unlocking direction, the movement displacement of the push direction of the upper rod 14, or transmitted to the lower b <br/> head 15, or prevented from being transmitted It is.

In FIG. 1 showing the specific structure of the inhibit mechanism 16, reference numeral 17 denotes a case provided integrally with the upper end of the lower rod 15, and this case 17 forms a part of the lower rod 15 and is manually operated. It is one component of the mechanism 6, and a lid case 18 is fixed on the upper part thereof. A shaft 19 is provided in the case 17 and the lid case 18.
Is slidably inserted from the lower rod 15 side, and the upper rod 14 is connected to the upper end of the shaft 19 by the joint 20. The shaft 19 is prevented from coming off upward by a large-diameter lower end portion 19a. more than
The shaft 19 as a rotor-side component and the lock
The case 17 as a mechanism side component is slidable.
It will be in a connected state.

An upper end of the pair of engaging members 21 disposed in the lid case 18 is fixed to the lid case 18, and a "L" shaped guide portion 21a is bent outward at the lower end. Is formed. Further, the guide portion 2 of the engagement member 21
The base side of the 1a is formed by cutting and raising projections 21b, engaged to the shaft 19 in correspondence to the projections 21b
An engagement recess 22 is formed as a part . The engaging member 21 is made of a leaf spring, and has an elastic force in a reducing direction (direction of an arrow E) for engaging the protrusion 21b with the engaging concave portion 22.

When the upper end of the engaging member 21 is inserted between the locking projection 18a of the lid case 18 and the shaft 19, the engaging member 21 is fixed as shown in FIG. The claw 21c cut and raised at the upper end of the joint member 21 is locked by the locking projection 18a in a state where it cannot be removed.

On the other hand, the case 17 has a ring-shaped yoke 2
3, an electromagnet 25 around which a coil 24 is wound is attached. Inside the yoke 23 of the electromagnet 25, for example, a plastic plunger 26 as a driving member slidably supported by the shaft 19 is disposed. Permanent magnets 2 are provided on both upper and lower sides of the plunger 26.
7, permanent magnets 27, 28 are provided.
Are set upside down as shown in the figure.

The coil 24 of the electromagnet 25 is driven by a DC power supply, and the polarity of the DC power applied to the coil 24 can be reversed. When a DC power is applied to the coil 24 so that the upper side of the yoke 23 is the S pole and the lower side is the N pole, an attractive force acting between the yoke 23 and the permanent magnet 27 and the permanent magnet 28 is obtained.
The plunger 26 slides downward due to the repulsive force. Conversely, when DC power is applied to the coil 24 so that the upper side of the yoke 24 becomes the N pole and the lower side becomes the S pole, the yoke 23
The plunger 26 slides upward due to the repulsive force and the attraction force acting between the plunger 26 and the permanent magnets 27 and 28. After the plunger 26 moves downward and upward,
Although the coil 24 is cut off, the permanent magnets 27 and 28 are attracted to the yoke 23 by the magnetic force, so that the plunger 26 is held at the position moved downward and upward.

[0020] the plunger 26 is moved downward into engagement with the engaging recess 22 a projection 21 b as shown in FIG. 1 engaging member 21 is rotated in the reduction direction indicated by the arrow E by its own elasticity . When the plunger 26 moves upward, the upper end of the plunger 26 comes into sliding contact with the guide portion 21a of the engaging member 21 and pushes open against its elastic force. The member 21 rotates in the opening direction opposite to the arrow E to pull out the projection 21 b from the engagement recess 22.

In the state shown in FIG. 1 in which the protrusion 21b is engaged with the engagement recess 22, the space between the upper rod 14 and the lower rod 15 is interposed between the shaft 19, the engagement member 21, the lid case 18, and the case 17. Connected. In this connection state, when the upper rod 14 moves in the pushing direction shown by the arrow D, the movement displacement is transmitted to the lower rod 15, and the turning arm 13 is turned in the direction of the arrow G to give the locking mechanism 1 a releasing displacement.

Further, in the state of FIG releasing the engagement of the projections 21b is the engagement recess 2 2, upper rod 14 and lower rod 1
The connection between 5 is broken. In this interrupted state, even if the upper rod 14 moves in the pushing direction, only the shaft 19 slides downward, and the movement displacement is not transmitted to the engaging member 21 and thus to the lower rod 15. Therefore, even if the rotor 9 is rotated in the unlocking direction, the door is not unlocked.

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 only when the engaging member 21 of the inhibit mechanism 16 is in the connected state. To release the lock. When the lock mechanism 1 is in the locked state, the engagement member 21 is configured to be in the shut-off state shown in FIG.

By the way, when the rotor 9 is turned 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 closed state. The displacement of the upper rod 14 in the pulling direction is the large diameter portion 19a at the lower end of the shaft 19.
Is transmitted to the case 17 and, consequently, the lower rod 15. 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.

The ignition key 10 is provided with a transmitter (not shown) as a lock release signal generating means, and a lock side operation for transmitting the transmitter as shown in FIG. A button 29 and an operation button 30 on the unlocking 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 29 and 30 are operated,
The transmitter operates 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 31 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,
The lock command and the unlock command are set to specific codes for each vehicle.

The radio signal received by the antenna 31 is transmitted to a code discriminating circuit 32 as received signal discriminating means. The code discriminating circuit 32 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, the lock electromagnet 3 of the electric operation mechanism 2 is energized in response to the lock command. Further, in response to the lock release command, power is supplied to the unlocking electromagnet 4 of the electric operation mechanism 2 and power is supplied to the electromagnet 25 of the inhibit mechanism 16 so that the engaging member 21 is connected. ing.

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 33 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 34 that operates in conjunction with the opening operation of the shutter 33 is provided. The shutter switch 34 functions as detection means for detecting that the ignition key 10 is inserted into the rotor 9. ing.

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 35 including a proximity switch as signal generation means for detecting that the rotor 9 has been rotated from the neutral position in the forward lock direction and the reverse unlock direction. Rotation detection switch 3
6 are provided.

The detection signals from the shutter switch 34, the forward rotation detection switch 35, and the reverse rotation detection switch 36 are input to a rotor rotation pattern determination circuit 37 as rotor rotation pattern determination means, as shown in FIG.
The rotor rotation pattern determination circuit 37 controls the forward rotation detection switch 35 and the reverse rotation detection switch 35 while the detection signal is being input from the shutter switch 34, 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 36 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 37 supplies power to the unlocking electromagnet 4 of the electric operating mechanism 2.

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.
9 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 31 and the code discrimination circuit 32
Is transmitted to The code discriminating circuit 32 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 and the door is locked in the closed state, and the engagement member 21 is turned off with respect to the electromagnet 25 of the inhibit mechanism 16 in conjunction with the locking operation of the lock mechanism 1. Energize so that

Now, in order to unlock the door to drive the automobile, the operation button 30 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 32 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 32 energizes the unlocking electromagnet 4 of the electric operation mechanism 2 and engages the electromagnet 25 of the inhibit mechanism 16 with the engaging member. Electricity is supplied so that 21 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 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 engagement member 21 is in the blocking state shown in FIG.
9 only slides downward and the displacement is lower rod 15
Is not transmitted to 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 ignition key 10 emits a radio signal of a specific code, the engaging member 21 cannot be switched to the connected state. Therefore, even if the manual operating mechanism 6 is provided, 6 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 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 25 of the inhibit mechanism 16 is energized to bring the engaging member 21 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 turns in the same direction to move the upper rod 14 in the pushing direction, the movement displacement in the pushing direction is transmitted to the lower rod 15 via the engaging member 21 in the connected state, and the turning arm 12 turns. The arm 13 is turned in the direction of the arrow G to apply a release displacement to the lock mechanism 1. Therefore, even if the electric operation mechanism 2 fails, the lock mechanism 1 is operated by the manual operation mechanism 6.
Can be unlocked.

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. Then, detection signals are output from the switches 35 and 36 according to the rotation direction, and based on this, the rotor rotation pattern determination circuit 37 detects the rotation pattern of the rotor 9. If the rotation pattern of the rotor 9 is a specific pattern, the rotor rotation pattern discrimination circuit 37 energizes the unlocking electromagnet 4 of the electric operating mechanism 2, thereby unlocking the lock mechanism 1. 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 lock release command. However, the engagement mechanism 21 is connected by the radio signal of a code different from the lock release command. You may make it a state.

In the above embodiment, when the rotation pattern of the rotor 9 is a specific pattern, the rotor rotation pattern discriminating circuit 37 is used to deal with the consumption of the battery of the transmitter.
, The lock is released by energizing the unlocking electromagnet 4 of the electric operation mechanism 2, but this is done by energizing the electromagnet 25 of the inhibit mechanism 16 to bring the engaging member 21 into a connected state and manually locking the lock. It is good also as composition which cancels.

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 32 and the rotor rotation pattern discriminating circuit 37 may be performed by program control by a microcomputer.

FIGS. 8 to 10 show a second embodiment of the inhibit mechanism according to the present invention. The same functional portions as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. explain.

Lower cylindrical rod 3 made of plastic
8 is made of plastic and has a tapered cam portion 39 at the upper end.
Are formed, and a mounting portion 41 for mounting the cover 40 is protrudingly provided. A shaft 42 is slidably inserted into the lower rod 38 from below, and the upper end of the shaft 42 is connected to the upper rod 14 (not shown). Note that the shaft 42 is prevented from coming off upward by the large-diameter lower end portion 42a. that's all
As a result, the shaft 42 as the rotor-side constituent member is
Can slide with the lower rod 38 as a component on the locking mechanism side
It becomes a state linked to Noh.

A plunger 43 as a driving member is slidably fitted outside the lower rod 38. The plunger 43 includes a main body 44 having a large-diameter portion 44a formed at the upper end, and a permanent magnet 45 attached to the large-diameter portion 44a.
And a disk 46 attached to the lower end of the main body 44, and a permanent magnet 47 attached to the disk 46. The lower end of a pair of leaf spring engaging members 48 is fixed to the upper end of the plunger 43. This upper portion of the engaging member 48 is engaging pin 49 is fixed, the engageable to the shaft 42 so as to correspond to the engagement pin 49
An engagement recess 50 is formed as a joint .

Here, the mounting structure of the permanent magnets 45 and 47 will be described. As shown in FIG.
A concave portion 51 for accommodating the permanent magnets 45 and 47 is formed in the 4a and the disk 46, and an L-shaped engagement groove 52 (only the large diameter portion 44a is shown) is formed in the inner peripheral surface of the concave portion 51. Have been. On the other hand, the permanent magnets 45, 47 are provided with projections 53 (illustrations of the permanent magnets 46), and the projections 53 are inserted into the engagement grooves 52 so that the permanent magnets 45, 47 are Then, the permanent magnets 45 and 47 are rotated to engage the projections 53 with the engagement grooves 52 in a state where they cannot be removed.

In the mounting structure of the disk 46, an L-shaped engagement groove 54 is formed at the lower end of the main body 44, whereas a projection 55 is formed on the inner periphery of the disk 46. Inserting the projection 55 into the engagement groove 54 allows the disk 46 to be inserted.
Is fitted to the main body 44, and thereafter, the disk 46 is rotated so that the projection 55 is engaged with the engagement groove 54 in a state in which the projection 55 cannot come off. The permanent magnets 45 and 47 and the disk 46 are prevented from rotating by bonding.

In FIG. 8, an electromagnet 56 fixed to the lower rod 38 is disposed around the outer periphery of the plunger 43. To explain the fixing structure of the electromagnet 56, as shown in FIG. 10, a groove 57 extending upward from the lower end is formed in the lower rod 38, and the upper half of the groove 57 is bent in the radial direction to form a relief groove. 57a. A groove 58 extending upward from the lower end is formed in the main body 44 of the plunger 43.
Are formed, and an upper portion of the groove 58 is formed as a radially wide escape groove 58a. On the other hand, coil 5
A projection 61 is formed on the yoke 60 of the electromagnet 56 around which the coil 9 is wound. Then, the plunger 43 is connected to the lower rod 38.
After fitting the disk 46 to the main body 44 of the plunger 43, the groove 5 of the main body 44 of the plunger 43 is
8 is aligned with the groove 57 of the lower rod 38, and the projection 6
1 is inserted into the grooves 57 and 58 so that the yoke 60
Is fitted into the lower rod 38 from the lower end thereof, and then the yoke 60 is rotated to insert the projection 61 into the stopper groove 57a to prevent the yoke 60 from coming off. Thus, the electromagnet 56 is fixed to the lower rod 38. In addition, the protrusion 61 is prevented from rotating by an adhesive in the stopper groove 57a.

The protrusion 61 of the yoke 60 is
3, the plunger 43 can be moved up and down by a distance corresponding to the length of the escape groove 58a. When the plunger 43 moves downward by the energization of the electromagnet 56 in the state of FIG. 8, the engaging member 48 slides against the cam portion 39 of the lower rod 38 and expands against its own elastic force. This allows
As shown in FIG. 9, the engagement pin 49 comes out of the engagement recess 50 and the displacement of the upper rod 14 in the pushing direction is reduced by the lower rod 1.
5 is not transmitted.

Conversely, when the plunger 43 moves upward due to the energization of the electromagnet 56 in the state of FIG. 9, the engaging member 48 is disengaged from the cam portion 39 of the lower rod 38, and contracts due to its own elastic force. The engagement pin 49 is engaged with the engagement recess 50 as shown in FIG. When the upper rod 14 is moved in the pushing direction in this connected state, the displacement is transmitted from the engaging member 48 to the plunger 43, and the lower permanent magnet 47 is attracted to the yoke 60 by magnetic attraction. 1
5 is transmitted.

With this structure, the same effects as those of the first embodiment can be obtained. In particular, the main body 44 to which the permanent magnet 45 is attached, the electromagnet 56, and the disk 4 to which the permanent magnet 47 is attached.
By sequentially inserting the 6 into the lower rod 38 from below, the electromagnet 56 can be fixed to the lower rod 38 while assembling the plunger 43, and an effect of excellent workability can be obtained.

FIGS. 11 to 13 show a third embodiment of the inhibit mechanism according to the present invention. The same functional portions as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. explain.

A shaft 63 is slidably inserted into a left / right two-part case 62 attached to the lower rod 15, and the shaft 63 is prevented from falling off by a large-diameter lower end portion 63a. Thereby, the lock mechanism side structure
The case 62 as a component and the rotor-side component
The shaft 63 is slidably connected.
You. A bifurcated engagement member 64 having a projection 64a is rotatably supported on the case 62 by a shaft 64b. This engagement member 64 is provided by a tension coil spring 65 as a spring member provided between the case 62 and the case 62. The projection 64a is urged in the direction of arrow F to engage the engagement concave portion 66 as the engaged portion of the shaft 63.

On the other hand, a cam portion 67 is provided on a plunger 67 as a drive member slidably provided on the shaft 63.
a is protrudingly provided. Then, the plunger 67 is moved as shown in FIG.
Is moved upward from the state shown by the solid line in FIG.
Slides against the engaging member 64 to rotate the engaging member 64 in the direction opposite to the arrow F against the elastic force of the extension coil spring 65. As a result, the projection 64a is disengaged from the engagement recess 66 as shown by a two-dot chain line in FIG.

Conversely, when the plunger 67 moves upward from the state shown by the two-dot chain line in FIG. 11, the cam 69 separates from the engaging member 64, and the engaging member 64 is moved by the elastic force of the extension coil spring 65. It turns in the direction of arrow F. As a result, the projection 64a is engaged with the engagement recess 66 as shown by a solid line in FIG. 11, and the engagement member 64 is in a connected state in which the displacement of the upper rod 14 in the pushing direction is transmitted to the lower rod 15.

The plunger 67 is similar to the plunger 43 of the second embodiment, and has a large diameter portion 69a.
9, a permanent magnet 70 attached to the large-diameter portion 69a, a disk 71 attached to the upper end of the main body 69, and this disk 71
And is assembled by the same mounting configuration as in the second embodiment.

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

[0058]

As described above, according to the present invention, when the rotor of the key cylinder is turned in the lock release direction, the manual operation mechanism is prevented from being released from the lock mechanism by the lock state. 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 no possibility that the door is unlocked by an unauthorized means. The inhibit mechanism is a manual operation mechanism.
Is provided on the component parts of
An excellent effect is obtained such that a special member for attachment is not required .

[Brief description of the drawings]

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

FIG. 2 is a longitudinal sectional side view of the inhibit mechanism shown in a state different from FIG. 1;

FIG. 3 is a perspective view of an engagement member.

FIG. 4 is a perspective view of a manual operation mechanism.

FIG. 5 is a configuration diagram of mechanical and electrical coupling

FIG. 6 is a perspective view showing a related configuration of a rotor shutter and its switch.

FIG. 7 is a configuration diagram of a switch for detecting a rotation direction of a rotor.

FIG. 8 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 9 is a diagram corresponding to FIG. 2;

FIG. 10 is an exploded perspective view of a main part.

FIG. 11 is a view corresponding to FIG. 1, showing a third embodiment of the present invention.

FIG. 12 is a plan view of the two-part case with one side removed;

FIG. 13 is an exploded perspective view of a main part.

[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, 15 is a lower rod, 16 is an inhibit mechanism, 17 is a case (lock mechanism side component member), 19 is a shaft (rotor side component member) , 21 is an engagement member, and 22 is an engagement member.
Engaging recess (engaged portion), 25 is an electromagnet, 26 is a plunger (drive member), 27 and 28 are permanent magnets, 32 is a code discriminating circuit (receiving signal discriminating means), 34 is a shutter switch, and 35 and 36 are Forward / reverse rotation detection switch, 37 is a rotor rotation pattern discrimination circuit, 38 is a lower rod (lock
39 is a cam portion , and 42 is a shaft (b).
Over the other side component), 43 plunger (driving member), 4
5 , 47 are permanent magnets, 48 is an engagement member, 50 is an engagement recess.
(Engaged part), 56 is an electromagnet, 62 is a case (locking machine)
構側component), 63 the shaft (rotor side component
Wood), the engagement member 64, the tension coil spring (spring member 65), 66 engagement recess (engaged portion) 67 is a plunger (driven member), 70, 72 is a permanent magnet.

 ────────────────────────────────────────────────── ─── Continued from the front page (72) Yoshiyuki Mizuno Inventor Yoshida Mizuno, Oguchi-machi, Niwa-gun, Aichi No. 1 Noda, Toyoda-shi, Tokai Rika Electric Machinery Works (56) References JP-A-64-32946 (JP, A) JP-A-1-234613 (JP, A) JP-A-61-237778 (JP, A) JP-A-63-184676 (JP, A)

Claims (2)

(57) [Claims] A key locking mechanism for locking a door on the basis of rotation of the key cylinder by inserting a key into a rotor of the key cylinder and rotating the rotor in a locking direction and an unlocking direction; Manual operation mechanism that locks and unlocks by giving lock displacement and release displacement to
And an electric actuator.
The lock mechanism is provided with the lock displacement and the release displacement.
A door unlocking device comprising an electric operating mechanism for giving and locking and unlocking , wherein the rotor among the members constituting the manual operating mechanism
The rotor side component member located on the side
To be slidable relative to the locking
The rotor when the rotor is turned in the locking direction.
The displacement of the rotor-side component is applied to the lock mechanism-side component.
And when the rotor is turned in the unlocking direction.
The displacement of the rotor side component is
Slide and lock to the lock mechanism side component
The mechanism is configured not to be transmitted to the mechanism-side component, and an inhibit mechanism is provided at a connection portion between the two components , and the inhibit mechanism is provided with an engaged portion provided on one of the two components.
And the rotor-side component when the rotor is turned in the unlocking direction, provided on the other side of the two components.
The displacement of the material is engaged with the engaged portion and the lock mechanism side
Wherein the connection state of transmitting the configuration member or the engagement between the engaged portion
Can switch to the al off by the lock mechanism side configuration member infusible such transmitted to shield disengaged state, the engaging member comprising said connecting shaped on purpose by its own elasticity of the elastic force or the spring member is configured in a ring And inside the two components,
Let the one component member provided with the engaged portion pass therethrough.
Thus, the coil is provided on the other component and passes through the coil.
An electromagnet capable of reversing the direction of the magnetic poles depending on the electromagnet direction, and a middle portion passing through the inside of the annular electromagnet so that
Reciprocatingly fitted and supported outside the one component
Are located on both sides of the electromagnet and face the electromagnet.
Having a pair of magnets, the electromagnet is in the direction of one magnetic pole
When energized as described above, one of the pair of magnets
Magnetic attraction force and magnetic repulsion acting on the other
Moving in one direction and sliding against the engaging member.
The engaging member to a blocking state against the elastic force,
When the electromagnet is energized in the direction of the other magnetic pole,
Magnetic repulsion acting on one of the pair of magnets and
Moved in the other direction by magnetic attraction acting on the other
By disengaging from the engagement member, the engagement member
And a driving member to be in a coupling state by the force, the locking mechanism is configured to cut-off state the engagement member when in the locked state, when the received signal is a specific signal, the The electromagnet so that the engagement member of the inhibit mechanism is in a connected state.
A door unlocking device provided with a receiving signal discriminating means for energizing the door. 2. A key cylinder, comprising : a key cylinder;
Insert the key into the rotor of
Rotation in the lock release direction.
Based on the door lock mechanism lock displacement and release displacement
Manual operation mechanism to lock and unlock by giving
And an electric actuator.
The lock mechanism is provided with the lock displacement and the release displacement.
An electric operation mechanism that gives and locks and unlocks
In the door unlocking device provided with the above, among the members constituting the manual operation mechanism, the rotor
The rotor side component member located on the side
To be slidable relative to the locking
The rotor when the rotor is turned in the locking direction.
The displacement of the rotor-side component is applied to the lock mechanism-side component.
And when the rotor is turned in the unlocking direction.
The displacement of the rotor side component is
Slide and lock to the lock mechanism side component
It is configured so that it does not transmit to the mechanism side components, and an inhibit mechanism is installed at the connection part of these two components.
Only, the inhibit mechanism, the the engaged portion provided on one of the two components, is configured in an annular, of the two components on the inner side
Provided on the other component so as to pass through the other,
An electric pole whose direction can be reversed
The magnet and the middle part are passed inside the annular electromagnet so that
It is fitted and supported so that it can reciprocate outside the other component.
Are located on both sides of the electromagnet and face the electromagnet.
Having a pair of magnets, the electromagnet is in the direction of one magnetic pole
When energized as described above, one of the pair of magnets
Magnetic attraction force and magnetic repulsion acting on the other
Move in one direction, and the electromagnet is in the other magnetic pole direction
When energized as described above, one of the pair of magnets
Magnetic repulsion force and magnetic attraction force acting on the other
A driving member that moves in the other direction, and the rotor is provided on the driving member, and the rotor moves in the unlocking direction.
The displacement of the rotor-side component when turned to
Engage with the engaged portion and transmit to the lock mechanism side constituent member.
Out of engagement between the engaged state and the engaged portion.
Switch to the cut-off state where it is not transmitted to
Possible, and the elastic force of its own or the spring member
An engagement member to be in the connected state, and an engagement member provided on the other of the two constituent members.
With the movement of the driving member in one direction,
The engaging member slides and cuts off against the elastic force.
Instead, as the driving member moves in the other direction,
The engaging member is disengaged from the sliding contact and is connected by the elastic force.
A cam portion for switching to a connection state, wherein the engagement member is engaged when the lock mechanism is in a lock state.
It is configured to be in a cutoff state, and when a received signal is a specific signal, the inhibit is performed.
The electromagnet so that the engagement member of the
Characterized in that a receiving signal discriminating means for energizing the power supply is provided.
Door unlocking device.