JPH0739786B2 - Door lock device for automobile - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a vehicle door lock device, and more particularly to a vehicle door lock device provided with a keyless lock device.

[Conventional technology]

BACKGROUND ART Conventionally, in a vehicle door lock device, for example, a locking / unlocking actuator is connected to a locking / unlocking lever of a door lock mechanism, and the locking / unlocking actuator is operated by a switch operation on the driver's side in the vehicle interior to generate a door lock mechanism. It is possible to lock and unlock.

Further, a locking / unlocking knob is connected to the locking / unlocking lever so that the door cannot be opened from the outside of the vehicle by a manual locking operation, or the door lock mechanism in the locked state can be manually unlocked from the vehicle interior. .

On the other hand, in the locking operation of the door lock mechanism, in addition to the operation by inserting and rotating the key into the key cylinder, the locking / unlocking knob is pushed down, and the door is locked while pulling up the outside handle of the door, An operation mechanism called a so-called keyless lock is known.

[Problems to be Solved by the Invention] However, in such a conventional vehicle door lock device, when the keyless lock is made to work, the key is not required, and therefore the key is inserted in the ignition key cylinder. There was a problem that I accidentally locked it.

An object of the present invention is to prevent the door from being locked by the keyless lock function while the key is inserted in the ignition key cylinder, and moreover, when the door is locked, the locked state can be securely locked. Another object of the present invention is to provide an automobile door lock device that can also perform the anti-theft function.

[Means for Solving the Problems]

The vehicle door lock device of the present invention is connected to a locking / unlocking lever of a door lock, and is capable of driving the locking / unlocking lever to a locking position and an unlocking position, an unlocking / unlocking knob, and the locking / unlocking lever. A blocking position that locks the locking position and the unlocking position to prevent movement.
A block member movable to an allowable position that allows movement between the locked position and the unlocked position, a block actuator that can drive the block member to the blocking position and the allowable position, and an ignition. A key presence / absence detecting means for detecting the presence / absence of a key in the key cylinder; an open / close detecting means for detecting the open / closed state of the door;
On the basis of a key presence signal by the key presence / absence detection means and a door opening signal by the door opening / closing detection means, the block actuator is moved to a blocking position where the block member stops the locking / unlocking lever at the unlocking position. Block signal giving means for giving a signal for activating a member.

[Action]

The vehicle door lock device of the present invention locks and unlocks the door lock with respect to the locking / unlocking lever, and moves the locking / unlocking lever between the locking position and the unlocking position. With a block member that allows that,
Then, by controlling the block actuator for operating the block member according to the state of the key in the ignition key cylinder and the open / closed state of the door, the keyless lock function allows the door to be operated with the key inserted in the ignition key cylinder. When the lock is to be locked, the locking / unlocking lever is locked at the unlocking position by the block member to prevent the door from being locked.

Furthermore, when the door is locked, the locking / unlocking lever is locked at the locking position by the block member, so that the locked state is reliably locked and the anti-theft function is also achieved.

〔Example〕

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

1 to 8 show an embodiment of the present invention, and FIG. 1 is a perspective view showing a schematic structure thereof.

In FIG. 1, 10 is a driver side door and 20 is a rear door. The driver's seat side door 10 is provided with a key cylinder 11, and a key cylinder locking / unlocking operation switch 31 which operates in association with the operation of the key cylinder 11. 33 is an operation switch for remote locking / unlocking 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 or not a key plate (hereinafter referred to as a key) is inserted. Presence / absence detection switch 35 is provided. Each door is provided with a door outer handle (hereinafter referred to as handle) 14.

Reference numeral 40 denotes a door lock mechanism provided on each door, which includes a locking / unlocking lever 41 as described later. Reference numeral 70 denotes a locking / unlocking knob for locking / unlocking the vehicle interior.

50 is an actuator for locking and unlocking the door, which will be described in detail later,
Similarly, 60 is a block actuator, which will be described later in detail, and is provided for each door.

Further, the door lock locking / unlocking actuator 50 includes the door lock locking / unlocking detection switch 37 as a block actuator.
Each block 60 has a block detection switch 38. Further, each door is provided with a door open / close detection switch 39 for detecting the open / closed state of the door.

As shown in FIG. 2, the door locking / unlocking actuator 50 includes a rotary screw 54 driven by a motor 52 and a centrifugal clutch 53 in a housing 51, and an operating rod 55 which is screwed into the rotary screw 54 to move back and forth. And a dustproof boot 56 are provided between the end edge portion of the housing 51 and the operating rod 55. A terminal piece 57 that constitutes a part of the door lock locking / unlocking detection switch 37 is fixed to one end of the operating rod 55, and an engaging hole 55A is provided in the other end.

As shown in FIG. 3, the block actuator 60 is basically the same as the door lock locking / unlocking actuator 50 except that the centrifugal clutch is not built therein.
Motor 62, rotating screw 64 driven by this, operating rod 6
5 and dustproof boots 66. And the operating rod 6
As described above, the terminal piece 67 forming a part of the block detection switch 38 is fixed to one end of the 5, and the other end has an engaging hole.
65A is provided.

Next, the mutual positional relationship among the door lock / unlock actuator 50, the block actuator 60, and the door lock mechanism 40 will be described with reference to FIG.

A door locking / unlocking actuator 50 and a block actuator 60 are fixed to the driver's seat side door 10 via a mounting bracket 80 in a substantially parallel relationship.

The mounting bracket 80 further includes a first rotation lever 82 rotatably around the first pivot shaft 81, and a second pivot shaft.
A second rotation lever 84 is provided so as to be rotatable around 83. The second turning lever 84 functions as a block member that indirectly blocks or allows the turning of the locking / unlocking lever 41 via the first turning lever 82, as described later. An engaging shaft 85 is planted at one end of the first rotating lever 82, which is the door locking / unlocking actuator described above.
50 is engaged with the engaging hole 55A of the operating rod 55, and the other end has an engaging groove 8A.
6 have been planted.

Further, an engaging shaft 87 is planted at one end of the second turning lever 84, these are engaged with the engaging hole 65A of the operating rod 65 of the block actuator 60, and the other end thereof is engaged. Groove 88 is formed. The engaging shaft 86 of the first rotating lever 82 described above is engaged with the engaging groove 88, and the engaging groove 88, as shown in detail in FIG. A first arc-shaped groove 88A centered on 83, a second arc-shaped groove 88B continuous with this on the first pivot shaft 81, and a second arc-shaped groove 88B continuous on the second arc-shaped groove 88B. Third arc-shaped groove 88C centering on the pivot 83
It consists of and.

An engaging hole 89 is further formed in the first rotating lever 82.

Further, a well-known door lock mechanism 40 is fixed to the edge portion of the door 10 and is provided with a locking / unlocking lever 41 for locking and unlocking the door lock mechanism 40. The locking / unlocking lever 41 is rotatably supported by a pivot 43 supported on a bracket 42, and has an engaging groove 4 that engages a latch stopper 44 at one end.
5, and has first and second engaging holes 46 and 47 at the other end. In the first engaging hole 46, the above-mentioned first rotating lever 82 is provided.
The end portion of the connecting rod 78 that connects the locking / unlocking lever 41 and the locking / unlocking actuator 50 is engaged with the engaging hole 89 of the
An end of a connecting rod 49 connected to the locking / unlocking knob 70 is engaged with the engaging hole 47 of.

Next, FIG. 8 shows an example of a control circuit including the above-mentioned various actuators and various switches.

In FIG. 8, the door lock / unlock actuator 50 is shown.
Since the block actuator 60 and the block actuator 60 are also provided on the left and right sides of the door, respectively, on the left side, the subscript L,
The right side is indicated by the subscript R, but both the left and right sides are connected in parallel in the circuit.

Door lock locking / unlocking actuators 50L and 50R are respectively a locking relay circuit 101 and an unlocking relay circuit 102,
The block actuators 60L and 60R are connected to the block relay circuit 103 and the block release relay circuit 104.

Then, each of the relay circuits 101 to 104 described above has a relay and a relay switch, respectively, and each actuator 50, 6
Switching operation of the direction of current supply to 0 is performed.

Further, each of the relay circuits 101 to 104 described above,
Each is connected to a switching transistor,
The bases of these switching transistors are respectively connected to the output terminals described later.

The input terminal of the first AND gate circuit 141 is provided with the side terminal 35A of the key presence / absence detection switch 35 (turns on when present).
Is connected to the open side terminal 39A of the door open / close detection switch 39 (which is turned on when the door is opened), and the output terminal is connected to the first OR gate circuit 131 connected to the block relay circuit 103.

A door lock locking / unlocking detection switch 37 (which is turned on when locking) and a locking side switch 31A (which is turned on during locking operation) of the key cylinder locking / unlocking operation switch 31 are connected to the input terminals of the second AND gate circuit 142. 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 unlocking side switch 31B of the key cylinder locking / unlocking operation switch 31 (ON when unlocking operation) and the block detection switch 38 (OFF when blocking). Output terminal is unlocked relay circuit
Connected to 102.

The unlocking side switch 31B of the key cylinder locking / unlocking operation switch 31 is connected to the input terminal of the second OR gate circuit 132 together with the non-side terminal 35B of the key presence / absence detection switch 35 (which turns on only when the key is removed). , The second OR gate circuit 1
The 32 output terminals are 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 control 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 described below.

When the driver tries to get out of the vehicle after finishing the driving, the door lock mechanism 40 is in the unlocked state, and the door locking / unlocking actuator 50 has the operating rod 55 pulled out as shown in FIG.
The rotating lever 82 is in a state of being rotated counterclockwise.

Then, when the driver's seat side door 10 is opened in this state,
The door open / close detection switch 39 is switched to the open side terminal 39A and turned on.

If the driver leaves the key in the ignition key cylinder 13, the key presence / absence detection switch 35
Remains in conduction with the side terminal 35A and is in the ON state. Then, the first AND gate circuit 141 is operated by both of the above signals, and the block relay circuit 103 is operated through the first OR gate circuit 131, whereby the operation of the block actuator 60 is started. That is, as the motor 62 rotates, the operating rod 65 advances, causing the second rotating lever 84 to rotate in the clockwise direction shown in FIG. 6 about the second pivot shaft 83. At this time, the first engaging with the engaging groove 88
The engaging shaft 86 of the rotating lever 82 is located at the innermost portion along the third arcuate groove 88C. This forgotten key block state is shown in FIG.

Therefore, in this key forgetting block state, the locking / unlocking knob 70
Even if the keyless lock operation is performed by pushing down the key, the locking / unlocking lever 41 moves in the locking direction in the third arcuate shape of the engaging shaft 86 of the first turning lever 82 and the second turning lever 84. groove
The engagement with 88C prevents the first rotation lever 82 from being unable to rotate. That is, the second rotation lever 84 as a block member indirectly locks the locking / unlocking lever 41 at the unlocking position to prevent the rotation thereof.

Therefore, in such a case, the driver inevitably notices that the key is forgotten, and the key is removed from the ignition key cylinder 13. When the key is removed, the key presence / absence detection switch 35 momentarily conducts to the non-side terminal 35B, and the second OR gate circuit 132 activates the block release relay circuit 104. As a result, the block actuator 60 moves the operating rod 65
Moves in the releasing direction to move the second rotating lever 84 in the counterclockwise direction about the second pivot shaft 83.

Therefore, in this state, the locking / unlocking knob 70 can be pushed down again to perform the keyless lock. That is, the second rotation lever 84 as a block member indirectly permits the rotation of the locking / unlocking lever 41, that is, the rotation between the unlocked position and the locked position.

Furthermore, when leaving the vehicle, a 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 becomes conductive with the locking side switch 31A, and the relay of the locking relay circuit 101 is excited. As a result, the motor 52 of the door locking / unlocking actuator 50 rotates in the locking direction, and the operating rod 55 retracts. Then the first rotation lever
82 rotates in the clockwise direction shown in FIG. 4 to drive the locking / unlocking lever 41 of the door lock 40 to the locking position via the connecting rod 48. At this time, the locking / unlocking knob 70 is simultaneously pulled down to the locking position via the connecting rod 49. This door lock locked state is shown in FIG.

The door lock locking / unlocking detection switch 37 is turned on by the operation of the locking / unlocking actuator 50 to the locking position. Then, the ON signal of the lock side switch 31A of the key cylinder operation switch 31 and the door lock lock / unlock detection switch 37 described above.
The ON signal is output from the second AND gate circuit 142, and the operation of the first OR gate circuit 131 causes the block actuator 60 to operate and enter the anti-theft lock state as described above.

However, in this case, the actuator for locking and unlocking the door
Since 50 is in the retracted position, when the second pivot lever 84 pivots clockwise due to the movement of the operating rod 65, the engagement of the first pivot lever 82 engaged with the engagement groove 88. The joint shaft 86 is located at the innermost portion along the first arcuate groove 88A. This anti-theft lock state is shown in FIG. That is, the second rotation lever 84 as a block member indirectly locks the locking / unlocking lever 41 in the locking position to prevent the rotation thereof.

In order to unlock the anti-theft lock state, there is no other method than operating the key cylinder again with the key.

For example, even if an attempt is made to rotate the locking / unlocking lever 41 by a physical means, the rotation of the first rotating lever 82 is blocked by the second rotating lever 84, which prevents unlocking. It is possible.

When the key cylinder is unlocked by operating the key cylinder, the key cylinder lock / unlock operation switch 31 becomes the unlock side switch 31B.
The operation of the second OR gate circuit 132 causes the block actuator 60 to move to the unlocking allowable position as described above. Then, when the block detection switch 38 detects the release position and turns on, the ON signal is output from the third AND gate circuit 143, and the unlocking relay circuit 102 is actuated to unlock the door locking / unlocking actuator 50. The locking operation is performed.

According to the present embodiment, the block actuator used for preventing the key forgetting can also be used for the anti-theft lock, which is extremely advantageous in terms of performance and cost.

In the above-described embodiment, an example of the control circuit is shown by analog, but it goes without saying that it may be digitally controlled by using a microcomputer or the like.

〔The invention's effect〕

As described above, the vehicle door lock device of the present invention, with respect to the locking / unlocking lever for locking / unlocking the door lock, locks it in the locking position and the unlocking position, or the locking position and the unlocking position. A block member for allowing movement to and from a position is provided, and a block actuator for operating the block member is controlled according to the state of the key in the ignition key cylinder and the open / closed state of the door. Because of the configuration, when you try to lock the door with the keyless lock function with the key inserted in the ignition key cylinder, the block member locks the locking and unlocking lever to the unlocked position, and the door is locked. This can be prevented in advance.

Moreover, when the door is locked, by locking the locking / unlocking lever at the locking position by the block member, the locked state can be reliably locked and the anti-theft function can be achieved. Further, since the block member has not only the above-mentioned function but also the anti-theft function, the overall structure of the device can be simplified and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic structure of an embodiment of the present invention, FIG. 2 is a sectional view showing a structure of a door locking / unlocking actuator, and FIG. 3 is a sectional view showing a structure of a block actuator. 4, 6 and 7 are side views showing the mutual arrangement relationship of the door lock / unlock actuator, the block actuator and the door lock mechanism, and FIG. 5 is an enlarged view of the engagement state of the turning lever portion. FIG. 8 is a perspective view showing a control circuit diagram showing an embodiment of the present invention. 31 …… Key cylinder lock / unlock operation switch, 35 …… Key presence / absence detection switch, 37 …… Door lock lock / unlock detection switch, 38 …… Block detection switch, 39 …… Door open / closed detection switch, 40 …… Door lock mechanism, 41 …… Locking / unlocking lever, 50 …… Door lock locking / unlocking actuator, 60 ……
Block actuator, 70 …… Locking and unlocking knob, 82 ……
1st turning lever, 84 ... 2nd turning lever, 86 ... engaging shaft, 88 ... engaging groove.

Claims (1)

[Claims] 1. A door lock is connected to a locking / unlocking lever, and the locking / unlocking lever can be driven to a locking position and an unlocking position.
A locking / unlocking actuator and a locking / unlocking knob, a locking position that locks and locks the locking / unlocking lever in the locking position and the unlocking position, and movement between the locking position and the unlocking position. A block member that is movable to an allowable position that allows the block member, a block actuator that can drive the block member to the blocking position and the allowable position, and a key presence / absence detection unit that detects the presence or absence of a key in an ignition key cylinder. A door open / close detecting means for detecting the open / closed state of the door, a key presence signal by the key presence / absence detecting means, and a door open signal by the door open / close detecting means based on the block actuator, the block member Is a block for applying a signal for operating the block member to a blocking position that stops the locking / unlocking lever in the unlocking position. Automotive door lock device being characterized in that a click signal applying means.