JPH02178475A - Door lock device for automobile - Google Patents

Abstract

PURPOSE:To make the unlocking by a physical means impossible and secure the steal preventing property by providing a block member driving actuator having a reverse action blocking mechanism on a locking/unlocking lever section in an electric door lock device. CONSTITUTION:A locking/unlocking actuator 50 driving a door lock locking/ unlocking lever 41 to locking/unlocking positions, a block member 82 moved to positions blocking or allowing the movement of the lever 41 in the unlocking direction, a block actuator 60 with a reverse action blocking mechanism, and an electric control system of actuators are provided. The member 82 is driven by the actuator 60 to the position blocking the movement of the lever 41 from the locking position in the unlocking direction, and the member 82 is prevented by the reverse action blocking mechanism from being moved by a physical external force. The lever 41 can not be moved to the unlocking position, and the complete steal preventing property can be secured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automobile door locking device, and more particularly to an electric automobile door locking device.

[Conventional technology]

Conventionally, in electric vehicle door lock devices, for example, a locking/unlocking actuator is connected to a locking/unlocking lever of a door locking mechanism via an operating rod, and a switch operation on the driver's seat side in the vehicle interior or a door key cylinder is performed. A locking/unlocking operation using a key activates this locking/unlocking actuator to lock/unlock the door locking mechanism.

Generally speaking, a lock/unlock knob is connected to the lock/unlock lever, and can be used to make it impossible to open the door from outside the vehicle by manual locking operation, or to manually unlock the locked door lock mechanism from inside the vehicle. There is.

On the other hand, the above door lock m87! The locking operation for J is not only by inserting the key into the key cylinder and rotating it, but also by pressing down on the locking/unlocking knob and closing the door while pulling up the outside handle of the door.This is a so-called keyless lock. Operating mechanisms are also known.

[Problems to be Solved by the Invention] However, in such conventional electric vehicle door lock devices, even if the locking operation is performed as described above and the power is turned off, the locking/unlocking lever is not affected by external force. Therefore, the lock/unlock lever is moved to the unlocked position by some physical means, and the door lock mechanism is thereby unlocked. In other words, there is a problem that theft prevention is not perfect. .

To avoid this, it is conceivable to use an electromagnetic actuator to drive the actuating rod in conjunction with the locking operation to urge the lock/unlock lever in the locking direction, but this also relies on the spring for the urging force of the actuating rod. Since this is unavoidable, complete anti-theft performance cannot be achieved.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automobile door lock device that solves the problems of the conventional door lock device and can provide complete anti-theft performance.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a locking/unlocking actuator capable of driving a locking/unlocking lever of a door lock to which a locking/unlocking knob is connected to a locking position and an unlocking position. , comprising a block member that can be driven to a position that blocks and a position that allows movement of the lock/unlock lever in the unlocking direction, and a block actuator that can drive the block member to the blocking position and the allowing position. , the locking/unlocking actuator has a reverse motion allowing mechanism capable of reversing movement in response to an input from the operating rod, and the blocking actuator has an interlocking prevention mechanism that prevents interlocking in response to an input from the operating rod. .

(Function) According to the present invention, a locking/unlocking actuator having a reverse motion allowing mechanism, a blocking member, and a blocking actuator having an interlocking prevention mechanism are provided.

Therefore, the locking/unlocking lever is in the locked position due to the driving of the locking/unlocking actuator, and the blocking member driven by the blocking actuator is placed in the position where the locking/unlocking lever is prevented from moving in the unlocking direction by the locking operation from outside the vehicle. In some cases, the block actuator has an interlocking prevention mechanism that prevents interlocking against human force from the operating rod, so that the block member cannot be moved by external force.

As a result, it is impossible to move the lock/unlock lever to the unlocked position, and complete theft prevention is ensured.

On the other hand, manual locking or unlocking using the locking/unlocking knob from inside the vehicle can be freely performed because the block member is in the permissible position and the locking/unlocking actuator has a reverse movement permissible mechanism.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

An embodiment of the present invention is shown in FIGS. 1 to 7, and FIG. 1 is a perspective view showing a schematic configuration thereof.

In FIG. 1, 10 is a driver's side door, and 20 is a rear door. A key cylinder 11 is provided on the driver's side door IO, and a key cylinder lock/unlock operation switch 31 that operates in conjunction with the operation of the key cylinder 11 is also provided. 33 is a remote control locking/unlocking operation switch provided on the armrest 12 of the driver's side door 10, and 13 is an ignition key cylinder, which is a key for detecting whether a key plate (hereinafter referred to as a key) is inserted. A presence/absence detection switch 35 is provided. Note that each door is provided with a door outer handle (hereinafter referred to as a handle) 14.

Reference numeral 40 denotes a door lock mechanism provided on each door, which includes a lock/unlock lever 41 as described later.

70 is a locking/unlocking knob for performing locking/unlocking operations inside the vehicle interior.

Reference numeral 50 represents a door lock/unlock actuator, which will be described in detail later, and 60 represents a block actuator, which will also be described in detail later, which are provided on each door.

Further, the door lock/unlock actuator 50 includes a door lock/unlock detection switch 37, and the block actuator 60 includes a block detection switch 38. Further, each door is provided with a door open/close detection switch 39 for detecting the open and closed states of the door.

As shown in FIG. 2, the door lock/unlock actuator 50 includes a rotary screw 54 inside a housing 51 that is driven via a motor 52 and a centrifugal clutch 53;
An operating rod 55 that engages with the housing and moves forward and backward is built in, and a dustproof boot 56 is provided between the end edge of the housing 5 and the operating rod 55. A terminal piece 57 constituting a part of the door lock/unlock detection switch 37 described above is fixed to one end of the operating rod 55, and an engagement hole 55Δ is provided at the other end. Further, as will be described later, a circuit board 58 on which a terminal piece 57 slides is provided in the housing 51.

As shown in FIG. 3, the block actuator 60 is
The basic configuration is the same as the door locking/unlocking actuator 50 except that it does not incorporate the above-mentioned centrifugal clutch, and includes a motor 62 in a housing 61, a rotating screw 64 driven by the motor, an operating rod 65, and a dustproof boot 66. We are prepared. However, the pitch angle of the rotating screw 64 is different from that of the operating rod 6.
The angle is set to prevent rapid movement of the operating rod 65 against human force from 5. At one end of the operating rod 65, there is a terminal piece 67 that constitutes a part of the block detection switch 38 as described above.
is fixed, and an engagement hole 65A is provided at the other end. Further, a circuit board 68 on which the terminal pieces 67 are slidably mounted is provided in the housing 61.

Therefore, the configurations of the terminal pieces 57 and 67 and the circuit boards 58 and 68 of the hN unlocking actuator 50 and the block actuator 60 will be explained based on FIG. 4.

However, since both have the same configuration, only the locking/unlocking actuator 50 will be described as a representative.

The terminal piece 57 is a first terminal piece 57 having three comb-shaped contacts.
A and a second terminal piece 57B having two comb-shaped contacts.

The circuit board 58 has first to seventh contact plates 58 to 58 as shown in the figure.
58G, second contact plate 5ft [l is thermistor 58
11 to the third contact plate 58C, and this third contact plate 58
C is connected to a fourth contact plate 580 via a first diode 58J, and this fourth contact plate 580 is further connected to a first contact plate 58A via a second diode 58K. Further, the first contact plate 588 is connected to a power source, and the second contact plate 58B is connected to one terminal of the motor 52.

When the operating rod 55 of the locking/unlocking actuator 50 is in the leaving position, the third contact plate 58C and the fourth contact plate 58D are electrically connected by the first terminal piece 578, and the fifth contact plate 58E and the sixth contact plate 58E, which are common terminals, are electrically connected. The contact plate 58F is the second terminal piece 57
Conducted by B.

Further, when the operating rod 55 is in the reverse movement position, the first contact plate 58
A and the fourth contact plate 58D are electrically connected by the first terminal piece 57A, and the fifth contact plate 58E and the seventh contact plate 58G are electrically connected to the second contact plate 58D.
Conductivity is established through the terminal piece 57B. This second terminal piece 57
B and the fifth to seventh contact plates constitute the door lock/unlock detection switch 37 described above.

In addition, although the description is omitted, the block detection switch 38 is also configured with the same configuration in the block actuator having the same configuration as described above.

Next, the mutual arrangement of the door lock/unlock actuator 50, the block actuator 60, and the door lock mechanism 40 will be described with reference to FIG. 5, taking the driver's side door 10 as an example.

A door locking/unlocking actuator 50 and a blocking actuator 60 are fixedly installed on the driver's side door IO via a mounting bracket 80 in a substantially parallel relationship.

A block plate 82 is provided on the mounting bracket 80 so as to be rotatable around a pivot shaft 81 .

One end of the block plate 82 has an engaging ITIII83.
is implanted and is engaged with the engagement hole 65A of the operating rod 65 of the block actuator 60 described above, and an engagement groove 84 is formed at the other end. An end of a connecting rod 48 to a locking/unlocking knob 70 (to be described later) is engaged with this engagement groove 84, and this engagement groove 84 is connected to a first arcuate groove 84 centered around the pivot shaft 8I. , a second arc-shaped groove 84B that is connected to this and centered on the rotation center of the lock/unlock lever 41, which will be described later, and a second arc-shaped groove 84B. g84B and a third arcuate groove 84C centered on pivot lli+b81.

Further, a well-known door lock mechanism 4 is provided at the edge of the door 10.
0 is fixed thereto, and is provided with a lock/unlock lever 41 that locks and unlocks the door lock mechanism 40. The lock/unlock lever 41 is attached to a pivot shaft 4 implanted in a bracket 42.
3, and has an engagement groove 45 that engages with a key lever 44 at one end, and an engagement shaft 46 and an engagement hole 47 at the other end. The engagement shaft 46 is engaged with the engagement hole 55A of the actuation rod 55 of the locking/unlocking actuator 50 described above, and the engagement hole 47 has the bent shaft of the connecting rod 48 connected to the locking/unlocking knob 70! The ends are engaged. The bent shaft portion of the connecting rod 48 is penetratingly engaged with the engagement groove 84 of the block plate 82 as described above.

Next, FIG. 7 shows an example of a control circuit using the various actuators and various switches described above.

In FIG. 7, the door lock/unlock actuator 5
0 and the block actuator 60 are also provided on the left and right sides of the door, so the left side is indicated by the subscript L and the right side is indicated by the subscript R, but both the left and right are connected in parallel in the circuit.

The door lock/unlock actuators 50L and 50R are
Locking relay circuit +01, unlocking relay circuit 102, and block actuator 6 (lL,
fiQR is connected to a blocking relay circuit 103 and a blocking relay circuit 104.

Each of the relay circuits 101 to 104 described above has a relay, a υ race inch, etc., and the circuit board 5
8 and a changeover switch built into the circuit board 68, the direction of supply of electricity n to each actuator 50, 60 is switched.

Furthermore, each relay of each of the relay circuits 101 to 104 described above is connected to a switching transistor, respectively, and is connected to a gate of these switching transistors or an output terminal described later.

The input terminals of the first AND gate circuit 141 include a valid terminal 35A of the key presence/absence detection switch 35 (turns on when present) and an open side terminal 011^ of the door opening/closing detection switch 39.
8 (turns on when between the doors), and the output terminal is connected to a first OR gate circuit 131 connected to the block relay circuit 103.

The input terminal of the second game 1 circuit 142 includes a door lock/unlock detection switch 37 (turned on when locked) and a lock side switch 31 of the key cylinder lock/unlock operation switch 31.
^ (turns on when the lock is operated) is connected, and the output terminal is connected to the first OR gate circuit 131.

The input terminal of the third AND gate circuit 143 is connected to the unlock side switch 31B of the key cylinder lock/unlock operation switch 31 (turns on when unlocking) and the block detection switch 38 (turns off when blocked), and outputs The terminal is connected to an unlocking relay circuit 102.

Further, the unlock side switch 31B of the key cylinder lock/unlock operation switch 31 is the non-side terminal 3 of the key presence/absence detection switch 35.
5B (turns on only when the key is removed) and 'fJ
It is connected to the input terminal of the OR gate circuit 132 of the second
The output terminal of the OR gate circuit 132 is connected to the block release relay circuit 104.

Although not shown in this control circuit, the door locking/unlocking actuator 50 is connected to a remote-controlled locking/unlocking operation switch, and the locking/unlocking operation can be performed by operating this switch.

The operation of this embodiment having the above configuration will be explained below.

When you finish your transfer and want to protect your vehicle, the door lock mechanism 40 is in the unlocked state, the actuator 55 of the door lock/unlock actuator 50 is pulled out, and the lock/unlock lever 41 is rotated clockwise. in a state of movement. At this time, the bending axis of the connecting rod 48 to the locking knob 70 is located at the communication portion between the first arcuate groove 84A and the second arcuate groove 84B of the block plate 82.

When the driver's side door 10 is opened in this state, the door opening/closing detection switch 39 is switched to the opening side terminal 39A and turned on.

If the driver leaves the key in the ignition key cylinder 13, the key presence detection switch 35 remains electrically connected to the valuable terminal 358 and is in the on state. Then, the first AND CATE circuit +41 is activated by both of the above signals, and the block relay circuit 103 is activated through the first OR gate circuit 131, thereby starting the operation of the block actuator 60.

That is, as the motor 62 rotates, the operating rod 65 moves backward, and the block plate 82 is rotated clockwise about the pivot shaft 81. At this time, the bending axis of the connecting rod 48 that is engaged with the engagement groove 84 is located at the innermost part along the first arcuate groove 84A.

Therefore, in this key-forgotten blocked state, the lock/unlock knob 7
Even if an attempt is made to perform a keyless rotor operation by pressing down 0, movement of the locking/unlocking lever 41 in the locking direction is blocked.

Therefore, in such a case, the driver will inevitably realize that he has forgotten the key and will remove the key from the ignition key cylinder 13. When the key is removed, the key presence detection switch 35 momentarily conducts to the non-side terminal 35B, and the second OR gate circuit 132 activates the block release relay circuit 1.
04 is activated. As a result, the block actuator 60 operates in the release direction in which the operating rod 65 is retracted, and the block plate 82 is rotated counterclockwise about the pivot shaft 81.

Therefore, in this state, the lock/unlock knob 70 can be pressed down again to perform keyless locking.

When the lock/unlock knob 70 is pressed down, the connecting rod 48
moves the second arcuate lever 184B together with the lock/unlock lever 41. At this time, the operating rod 55 of the locking/unlocking actuator 50, which is engaged by the engaging shaft 46 of the locking/unlocking lever 41, is interlocked with the rotating screw 54 having a large pitch angle. However, since the rotary screw 54 is connected to and disconnected from the motor 52 by the centrifugal clutch 53, the operation of the operating rod 55, that is, the manual operation of the locking/unlocking knob 70, is smoothly performed.

Furthermore, when leaving the vehicle, the key can be inserted into the key cylinder 11 to perform a locking operation.

When such a key operation is performed, the key cylinder locking/unlocking operation switch 31 is brought into conduction with the locking side switch 318, and the relay of the locking relay circuit 101 is energized. Then, in FIG. 4, the terminal piece 57 is located on the right side in the drawing, which is the reverse movement position of the operating rod 55, and the first contact plate 588 and the fourth contact plate 58
0 are electrically connected by the first terminal piece 57Δ. Therefore, from the relay to the first contact plate 588, the fourth contact plate 58D
, first diode 58J.

A current flows through the third contact plate 58C, the thermistor 5811, and the second contact plate 58B, thereby causing the motor 52 of the door locking/unlocking actuator 50 to rotate in the locking direction, and the operating rod 55 to move out. Then 81 unlock lever 4
1 rotates counterclockwise as shown in Figure 5, and enters the locked position.

At this time, the lock/unlock knob 70 is simultaneously pulled down to the locked position via the connecting rod 48. This locked state of the door lock is shown in FIG.

When the locking/unlocking actuator 50 is operated to the locked position, the door locking/unlocking detection switch 37 is turned on.

That is, the terminal piece 57 moves to the left side in the fourth figure, and the terminal piece 57 moves to the left side in the fourth figure.
The contact plate 58E and the sixth contact plate 58F are the second terminal piece 571
This is because conduction occurs when the voltage is 1.

Then, the second AND gate circuit 1 is activated by the ON signal to the lock side switch 31 of the key cylinder operation switch 31 and the ON signal to the door lock/unlock detection switch 37.
An on signal is output from 42, and the first OR gate circuit 13
1, the block actuator 60 is activated as described above to enter the anti-theft lock state.

However, in this case, since the door lock/unlock actuator 50 is in the leaving position, when the block plate 82 is rotated clockwise due to the reverse movement of the operating rod 65, the connecting rod engaged with the engaging groove 84 The bending axis 48 is located at the innermost part along the third arcuate groove 84C. This anti-theft lock state is shown in FIG.

Note that the only way to unlock the anti-theft lock is to operate the key cylinder again using the key.

For example, even if an attempt is made to rotate the lock/unlock lever 41 by physical means, the engagement groove 84 of the block plate 82 prevents the rotation, and unlocking by this is also impossible.

Moreover, even if an attempt is made to rotate the block plate 82 itself, the rotation screw 64 of the block actuator 60
The pitch angle of the actuating rod 65 h) is small, and the rotating screw 64 does not rotate due to the human power of the actuating rod 65 h).
does not move backward, so the block plate 82 cannot be rotated.

Note that when unlocking is performed by operating the key cylinder, the key cylinder locking/unlocking operation switch 31 switches to the unlocking side switch 3.
1B, and first, by the operation of the second OR gate circuit 132, the blocking actuator 60 is operated to the unlocking permission position as described above.

When the block detection switch 38 detects the release position and turns on, the third AND gate circuit 14
3 outputs an on signal, and the unlocking relay circuit 102 operates to unlock the door locking/unlocking actuator 50.

According to this embodiment, the block actuator used for the theft prevention lock can be used to prevent keys from being forgotten, which is extremely advantageous in terms of performance and cost.

In the above-described embodiments, an example of an analog control circuit was shown, but it goes without saying that digital control using a microcomputer or the like may also be used.

〔Effect of the invention〕

As is clear from the above description, the invention according to claim 1 includes a locking/unlocking actuator for the locking/unlocking lever, a blocking member for the locking/unlocking lever, and a blocking actuator for the blocking member. Since the block actuator has a commuting permitting mechanism and the blocking actuator has a commuting preventing mechanism, it is impossible to unlock by physical means, and complete theft prevention can be achieved.

Further, according to the second aspect of the invention, the number of parts can be reduced, and the operating feeling of the locking knob can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of the present invention, FIG. 2 is a sectional view showing the configuration of a door locking/unlocking actuator, FIG. 3 is a sectional view showing the configuration of a block actuator, Figure 4 is a plan view showing an example of a terminal piece and a circuit board, Figures 5 and 6 are side views showing the mutual arrangement of the door lock/unlock actuator, block actuator, and door lock mechanism, and Figure 7 is a plan view showing an example of a terminal piece and a circuit board. 1 is a control circuit diagram showing an embodiment of the present invention. FIG. 31...Key cylinder lock/unlock operation switch, 35...
・Key presence detection switch, 37...Door lock/unlock detection switch, 38...
Block detection switch, 39...Door opening/closing detection switch, 40...Door lock mechanism, 41...Lock/unlock lever 50...Door lock/unlock actuator, 60
...Block actuator, 70...Lock/unlock knob, 82...Block plate, 84...Engagement groove. 110 Fig. 3 58H Shoulder, ) Piece and Regen tea rough ρ i j ” showing 110 fig.

Claims (1)

[Scope of Claims] 1) A locking/unlocking actuator capable of driving a locking/unlocking lever of a door lock to which a locking/unlocking knob is connected to a locking position and an unlocking position; , a block member movable to a blocking position and a permitting position, and a block actuator capable of driving the block member to the blocking position and the permitting position, wherein the locking/unlocking actuator is configured to move from the operating rod to the blocking position and the permitting position. 1. A door lock device for an automobile, characterized in that the block actuator has a reverse movement allowing mechanism capable of moving backward in response to an input, and a reverse movement preventing mechanism that prevents reverse movement in response to an input from an operating rod. 2) The automobile door lock device according to claim 1, wherein the operating rod of the locking/unlocking actuator is directly connected to the locking/unlocking lever.