JPH0781443B2 - Vehicle door lock locking / unlocking operation method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention can prevent unlocking due to theft, and
The present invention relates to a locking / unlocking operation method and device using an electric actuator of a vehicle door lock, which enables manual locking / unlocking operation.

[Conventional technology]

An example of a conventional door lock locking / unlocking operation device that can be manually locked / unlocked and electrically locked / unlocked is disclosed in Japanese Utility Model Publication No. 58-9953.

This device includes a door lock operation lever and a rotary plate that is rotated by a motor drive of an actuator via a speed reducer. The rotary plate is rotated from a neutral position in a locking direction or an unlocking direction. In addition to connecting through play equivalent to the stroke obtained at the angle, rotate the rotary plate from the neutral position to the same movement as the stroke of the operating lever on both sides of the neutral position, and rotate the rotary plate in reverse after the set stroke operation. Then, by controlling so as to always return to the neutral position, the movement of the manual operation is prevented from being transmitted to the speed reducer, and the manual operation is enabled.

However, in this device, for example, the theft lock can be easily unlocked by intruding the theft device into the vehicle compartment between the window glass and the sash and pulling up the locking / unlocking operation knob in the vehicle. However, there is a problem that it is not preferable for anti-theft measures.

As a solution to this problem, for example, JP-A-55
Some are disclosed in Japanese Patent No. 65681.

This device is capable of electric locking / unlocking operation by moving the rack connected to the locking / unlocking lever of the door lock by the motor provided in the casing, which can be locked / unlocked by a key or other means from outside the vehicle. By operation,
The unlocking operation of the locking / unlocking lever is restricted by driving another motor different from the above-mentioned locking / unlocking motor to engage the lock claw so as to restrict the operation of the rack in the unlocking direction. , Prevents unlocking operations due to theft.

[Problems to be Solved by the Invention]

In the conventional device as described above, since a motor for electric locking / unlocking operation of the door lock and another motor for restraining the unlocking operation of the locking / unlocking lever due to theft, are required.
There are problems that the number of components is large, the configuration is complicated, and the cost is high.

The present invention has been made in view of the above problems of the prior art, and the object thereof is, of course, manual locking / unlocking operation and electric locking / unlocking operation can be performed with a simple configuration. An object of the present invention is to provide a door lock locking / unlocking operation method for a vehicle and a device therefor capable of preventing unlocking of a door lock lock / unlock lever by theft.

[Means for Solving the Problems]

In order to achieve the above object, the method of the present invention is capable of moving an output lever from a neutral position in a locking direction and an unlocking direction via a reduction mechanism by a motor capable of rotating in the forward and reverse directions, and then outputting the output lever. In the locking / unlocking operation method of the vehicle door lock, which moves the locking / unlocking lever of the door lock to the locking position and the unlocking position by the actuator that is capable of returning and pivoting to the neutral position, When operating from the neutral position of the output lever to the locking direction or the unlocking direction by the locking / unlocking operation, and when operating from the neutral position of the output lever to the unlocking position by the unlocking operation of the vehicle exterior operation switch,
After the locking / unlocking lever is locked or unlocked, the motor is reversely controlled to return the output lever to the neutral position, and the output lever is operated in the locking direction by the locking operation of the vehicle exterior operation switch. In some cases, after the locking / unlocking lever is brought into the locked state, the locking / unlocking lever is stopped at a position that prevents the locking / unlocking lever from moving in the unlocking direction without returning to the neutral position.

In addition, the device of the present invention, by the motor capable of forward and reverse rotation,
Through the reduction mechanism, the output lever can be moved from the neutral position to the locking and unlocking directions for moving the locking and unlocking lever in the door lock to the locking position and the unlocking position, and the return lever can be returned to the neutral position. An actuator that can be moved, an in-vehicle operation switch for locking and unlocking operations provided inside the vehicle, an outside operation switch for locking and unlocking operations provided outside the vehicle, and a door lock locking / unlocking lever at the locking position. A lock operation detection switch that detects that the lock lever has been reached, an unlock operation detection switch that detects that the lock / unlock lever of the door lock has reached the unlock position, and a neutral detection that detects that the output lever has reached the neutral position. A switch, a motor of the actuator and each switch, and when the in-vehicle operation switch is locked or unlocked, and When the external operation switch is unlocked, the output lever rotates the motor in the locking direction or the unlocking direction until the locking operation detection switch operates or the unlocking operation detection switch operates. Direction, and the lock operation detection switch or the unlock operation detection switch operates to reverse the motor and return the output lever to the neutral position until the neutral detection switch operates. When the switch is locked, the motor is rotated in the direction in which the output lever rotates in the locking direction until the locking operation detection switch is operated, and the locking operation detection switch operates to operate the motor. The operation is stopped to stop the output lever at a position that prevents the locking / unlocking lever from moving in the unlocking direction, and in this state, By unlocking operating the use operation switch, the output lever the motor is characterized by comprising a controller for controlling the motor to rotate in a direction to return rotated toward the neutral position.

[Action]

The motor of the actuator is normally rotated in a predetermined direction by the locking operation of the in-vehicle operation switch provided for the passenger compartment, and the output lever is accordingly rotated from the neutral position to the locking direction via the reduction mechanism. The rotation of the output lever causes the locking / unlocking lever to move to the locking position that disables the door opening operation.

When the movement of the locking / unlocking lever to the locking position is completed, the motor is reversely controlled by the operation of the locking operation detection switch,
The output lever is reversed and rotated from the locked position toward the neutral position, and when the neutral detection switch is operated thereafter, the rotation of the motor is stopped and the output lever is stopped at the neutral position.

When the in-vehicle operation switch is unlocked, the motor reverses and the output lever is rotated in the unlocking direction from the neutral position via the speed reduction mechanism. After moving, it returns to the neutral position, rotates, and stops.

Since the output lever is in the neutral position in which the operation of the locking / unlocking lever associated with the manual operation is not transmitted, the output lever can be easily operated manually.

By locking the outside operation switch provided outside the vehicle,
The motor rotates in the normal direction, and accordingly, the output lever is rotated in the locking direction from the neutral position via the speed reduction mechanism, and the rotation of the output lever moves the locking / unlocking lever to the locking position.

When the locking / unlocking lever reaches the locking position, the locking operation detection switch is activated, but at this time, the motor is stopped without being reversed and the output lever is moved in the unlocking direction of the locking / unlocking lever. It remains stopped at the position that prevents

In this state, the output lever prevents the locking / unlocking lever from moving in the unlocking direction.
Movement of the locking / unlocking lever in the unlocking direction due to theft is substantially impossible.

When the vehicle outside operation switch is unlocked while the locking / unlocking lever is prevented from moving in the unlocking direction, the motor is rotated in the reverse direction, and the output lever is returned from the locked position to the neutral position.

After continuing to rotate the output lever in the unlocking direction to move the locking / unlocking lever to the unlocking position, the unlocking operation detection switch actuates the motor to rotate the motor forward to set the output lever to the neutral position. You may make it return-rotate to.

〔Example〕

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

(1) is a door lock main body provided inside the door, a latch mechanism for engaging and disengaging a striker (not shown) provided on the vehicle body side, and a meshing mechanism portion (a locking plate (both not shown) and the like are stored. 2) and an operation mechanism section (3) accommodating a group of levers for controlling and operating the meshing mechanism section (2).

(4) is a locking / unlocking lever which is one of a group of levers rotatably supported by the operation mechanism section (3), and one end of which is a locking / unlocking for manual operation arranged inside the door of the passenger compartment. Knob (5)
To the key lock (7), which is connected to the door lock body (1) via a rod (6) and an operating plate (4a) is integrally fixed to the door lock body (1). )
And a driven portion (4b) extending downward is formed in the central portion.

The key lever (7) has a holder (7a) provided at its tip.
And a rod (8) rotatably connected to the holder (7a), and is connected to a key cylinder (9) arranged outside the door.

Then, by manually operating the locking / unlocking knob (5) from the inside of the vehicle or by manually operating the key cylinder (9) from the outside of the vehicle using the key plate, the locking / unlocking lever (4) moves to the door. Moving to a locking position shown in FIG. 4 that disables a door opening operation of a release operation handle (not shown) provided inside and outside the vehicle and an unlocking position shown in FIGS. 1 and 3 that also enables the door opening operation. You can

(10) and (11) are a normally-closed unlocking operation detection switch and a locking operation detection switch, which are fixed on a bracket (12) extending from the operation mechanism section (3), respectively, and in which the locking and unlocking lever (4) is In the unlocked state shown in Fig. 1, the position of the operating plate (4a) is detected and the unlocking operation detection switch (10) is turned off.
In the locked state shown in FIG. 4, the locking operation detection switch (11) is turned off to detect each state.

(13) is an actuator that moves the locking / unlocking lever (4) to a locking position and an unlocking position by driving a motor, and is fixed near the locking / unlocking lever (4) on the bracket (12) of the door lock body (1). In the case (13), a well-known speed reduction mechanism (motor (13a) (see FIG. 5) capable of rotating in the forward and reverse directions and a planetary gear or the like for reducing the rotation of the motor (13a) is used. 13b) and an output lever (14) fixed to the output shaft (13c) of the speed reduction mechanism (13b).

The relationship between the output lever (14) of the actuator (13) and the driven portion (4b) of the locking / unlocking lever (4) is that the output shaft (13c), which is the rotation center of the output lever (14), locks / unlocks the lever (4). Of the driven part (4b) of the locking / unlocking lever (4) when the output lever (14) is in the neutral position while being positioned on the side of the moving track of the driven part (4b) of From the neutral position to the locking direction or the unlocking direction, the output lever (14) causes the output lever (14) to move to one side edge of the driven portion (4b) or to another side. It is provided so that the locking / unlocking lever (4) can be moved to the locking position or the unlocking position by contacting the side edge.

The output lever (14) is moved from the neutral position shown in FIG. 1 to a motor (13) by a remote control switch (16) provided inside and outside the vehicle and a key operation switch (17) interlocking with the operation of a key cylinder (9). ), It is possible to rotate in the locking direction which is the clockwise direction in FIG. 1 and the unlocking direction which is the counterclockwise direction.

(15) is a normally-closed neutral detection switch disposed at a position corresponding to the neutral position of the output lever (14).

When the remote control switch (16) in the vehicle compartment is locked, the output lever (14) rotates clockwise from the neutral position in FIG. 1, and as shown in FIG.
The operating part (14a) of 4) is the driven part (4) of the locking / unlocking lever (4).
It enters into the operation locus of b), contacts the left edge of the driven part (4b), moves the locking / unlocking lever (4) to the locking position, and the locking operation detection switch (11) detects this position. As a result, the motor (13a) is reversely controlled to return and rotate to the neutral position. Then, the output lever (14) is stopped at the neutral position by turning off the neutral detection switch (15) by the tip of the operating portion (14a).

In the unlocking operation, the output lever (14) rotates counterclockwise from the neutral position, and the operating portion (14a) enters the operating locus of the driven portion (4b) as shown in FIG. Then, the lock / unlock lever (4) is actuated to the unlock position by contacting the right side edge of the driven part (4b), and this position is detected by the unlock operation detection switch (10), whereby the motor (13a ) Is reversely controlled and returns to the neutral position and rotates. When the tip of the actuating portion (14a) turns off the neutral detection switch (15), the output lever (14) stops at the neutral position.

When the output lever (14) is in the neutral position, its operating portion (14a) is located outside the operating locus of the driven portion (4a) of the locking / unlocking lever (4), and it is The operation from the locking / unlocking lever (4) side is the output lever (14)
The actuator (13) reduction mechanism (13b)
It will not be transmitted to. Thereby, the manual operation can be performed easily.

When the key cylinder (9) outside the vehicle is locked, the motor is driven by turning the key operation switch (17) on to the locking side, and the output lever (14) is rotated clockwise from the neutral position. As shown in FIG. 4, the operating part (14a) enters into the operating locus of the driven part (4b) of the locking / unlocking lever (4) and contacts the left edge of the driven part (4b) to lock / unlock the lever. (4) is moved to the locked position. In this case, the output lever (14) stops at this position without returning to the neutral position.

Then, in order to move the locking / unlocking lever (4) to the unlocking position by performing the unlocking operation from the locking / unlocking knob (5) side, the driven portion (4b) thereof contacts the output lever (14). The speed reduction mechanism (13b) in the actuator (13) must be reversed. However, due to the decelerating effect, its operation is practically impossible.

In order to release the constraint of the locking / unlocking lever (4) at the locking position, it is necessary to unlock the key cylinder (9). By this operation, the key operation switch (17) is turned on to the unlocking side and the motor (13a) is driven, whereby the output lever (14) is rotated toward the neutral position, and passes the neutral position, The locking / unlocking lever (4) can be moved to the unlocking position.

FIG. 5 shows an embodiment of the control circuit.

One terminal of the motor (13a) has a relay (18) for locking.
The switching contact (18a) is connected to the switching contact (18a) and the other terminal is connected to the switching contact (19a) of the unlocking relay (19). The relays (18) (19) are connected to the collectors of the switching transistors (20) (21),
The bases of the transistors (20) (21) are connected to the output terminals of the OR gate circuits (22) (23).

One input terminal of the OR gate circuit (22) is connected to the output terminal of the AND gate circuit (24), and the other input terminal is connected to one output terminal of the interlock circuit (25). When the ON signal is input to, the ON signal is output from the output terminal by the logical sum, the switching transistor (20) is made conductive, the relay (18) is excited, and the motor (13a) is normally rotated. Output levers (14)
Can be rotated in the locking direction (clockwise direction).

One input terminal of the OR gate circuit (23) is connected to the output terminal of the AND gate circuit (26), the other input terminal is connected to the output terminal of the AND gate circuit (27), and one of the input terminals is ON. When a signal is input, an ON signal is output from the output terminal by the logical sum of the signals, the switching transistor (21) is made conductive, and the relay (19) is excited,
The output lever (14) can be rotated in the unlocking direction (counterclockwise direction) by reversing the motor (13a).

One input terminal of the AND gate circuit (24) is connected to the output terminal of the OR gate circuit (28), and the other input terminal is connected to the lock operation detection switch (11).
8) One input terminal is connected to the lock side contact (16a) of the remote control switch (16), and the other input terminal is connected to the lock side contact (17a) of the key operation switch (17). When the lock operation detection switch (11) is ON (unlocked state), either the remote operation switch (16) or the key operation switch (17) is turned to the lock side contact (16a) (17a) side.
When turned on, turns on at one input terminal of the OR gate circuit (22)
A signal can be input.

One input terminal of the AND gate circuit (26) is connected to the OR gate circuit (29), the other input terminal is connected to the unlocking operation detection switch (10), and one input terminal of the OR gate circuit (29) is Remote side switch (16) unlocking side contact (16
In b), the other input terminal is connected to the unlocking side contact (17b) of the key operation switch (17) so that the unlocking operation detection switch (10) is ON (locked state),
When either the remote operation switch (16) or the key operation switch (17) is turned on to the unlock side contacts (16b) (17b), an ON signal can be input to one input terminal of the OR gate circuit (23). it can.

One input terminal of the AND gate circuit (27) is connected to the input terminal of the flip-flop circuit (30), and the other input terminal is connected to the other output terminal of the interlock circuit (25).

Set input terminal (S) of flip-flop circuit (30)
To the lock side contact (17a) of the key operation switch (17),
The reset input terminals (R) are connected to the unlocking side contacts (17b) respectively, and when the OFF signal is input to the set input terminal (S), the ON signal is output and the set input terminal (S) is also output. When the ON signal is input to, the OFF signal is output.

One input terminal of the interlock circuit (25) is connected to the AND gate circuit (31), and the other input terminal is connected to the output terminal of the AND gate circuit (32).

One input terminal of the AND gate circuit (31) is connected to the lock operation detection switch (11), and the other input terminal is connected to the neutral detection switch (15).

One input terminal of the AND gate circuit (32) is connected to the neutral detection switch (15), and the other input terminal is connected to the unlocking operation detection switch (10).

When the remote control switch (16) is locked, the output lever (1
When the output lever (14) moves the locking / unlocking lever (4) to the locking position as shown in FIG. 4 when the locking lever (4) is rotated in the locking direction, the locking operation detection switch Since (11) is turned off and both the neutral detection switch (15) and the unlocking operation detection switch (10) are turned on, an ON signal is output from the other output terminal of the interlock circuit (25).

At this time, since the ON signal is output from the flip-flop circuit (30), the logical product of the AND circuit (27) is obtained, the motor (13a) is reversed, and the output lever (14) is set to the neutral position. It can be returned and rotated. Output lever (1
4) reaches the neutral position and the neutral detection switch (15) is turned off.
Then, the rotation of the motor (13a) stops, and the output lever (14) stops at that position.

Further, when the output lever (14) is operated in the unlocking direction by the unlocking operation and the locking / unlocking lever (4) is operated to the unlocking position as shown in FIG. 3, the unlocking operation is detected. Switch (1
0) is turned off, and the neutrality detection switch (15) and the locking operation detection switch (11) are both turned on, so that the 0N signal is output from one output terminal of the interlock circuit (25). As a result, the motor (13a) can be normally rotated and the output lever (14) can be returned to the neutral position and rotated.

When the lock side contact (17a) of the key operation switch (17) is turned on by locking the key cylinder (9), the output lever (14)
When is rotated in the locking direction, the flip-flop circuit (30) is held in the set state, and the ON signal is not output from its output terminal. Therefore, the AND circuit (27)
Output lever (14)
Does not return to the neutral position and rotates, but remains stopped at the position shown in FIG.

As a result, the movement of the locking / unlocking lever (4) in the unlocking direction is restricted.

To release the locked state, the unlocking operation of the key cylinder (9) turns the unlocking side contact (17b) of the key operation switch (17) to 0N, and the flip-flop circuit (3
0) must be reset.

When the flip-flop circuit (30) is reset, the logical product of the AND circuit (27) is obtained, the motor (13a) reversely rotates, and the output lever (14) returns to the neutral position and rotates to lock and unlock. The lever (4) moves out of the operating locus of the driven part (4b).

〔The invention's effect〕

According to the method and apparatus of the present invention, the output lever of the actuator is moved by the in-vehicle operation switch, the door lock can be locked / unlocked, and the manual operation can be performed lightly, and the out-of-vehicle operation switch, A single motor can be used to lock the door lock by moving the actuator output lever, and to lock the door in the unlocking direction to prevent the unlocking operation due to theft. Since it can be performed, the number of parts can be reduced and cost can be reduced as compared with the conventional case.

[Brief description of drawings]

The drawings show one embodiment of the device of the present invention. FIG. 1 is a front view of a door lock main body in an unlocked state, FIG. 2 is a perspective view thereof, and FIG. 4 is a front view of a portion, FIG. 4 is a front view of a main portion showing a locking operation state, and FIG. 5 is a control circuit diagram. (1) …… door lock body, (4) …… locking / unlocking lever (4a) …… driven part, (9) …… key cylinder (10) …… unlocking operation detection switch, (11) …… locking operation Detection switch (13) …… actuator, (13a) …… motor (14) …… output lever, (14a) …… actuator (15) …… neutral detection switch (16) …… remote control switch (in-vehicle operation) Switch) (17) …… Key operation switch (External switch)

Claims (2)

[Claims] 1. A motor capable of rotating in the forward and reverse directions can move an output lever from a neutral position to a locking direction and an unlocking direction via a speed reduction mechanism, and then rotate the output lever to return to the neutral position. In the locking / unlocking operation method of the vehicle door lock, in which the locking / unlocking lever of the door lock is moved to the locking position and the unlocking position by the actuator capable of being operated, When the output lever is actuated from the neutral position to the unlocked position by operating the switch for outside the vehicle from the neutral position to the locked or unlocked direction, After the unlocked state, the motor is reversely controlled to return the output lever to the neutral position, and the outside operation switch is locked by the lock operation. At the time of operating the output lever in the locking direction, after the locking / unlocking lever is brought into the locked state, without returning to the neutral position,
A locking / unlocking operation method for an automobile door lock, characterized in that the locking / unlocking lever is stopped at a position that prevents movement in the unlocking direction. 2. A motor capable of rotating in the normal and reverse directions, in a locking direction and an unlocking direction for moving the output lever from a neutral position to a locking position and an unlocking position in a door lock via a speed reducing mechanism. An actuator that can be moved and can be rotated back to the neutral position, an in-vehicle operation switch for locking and unlocking operations provided inside the vehicle, and an outside operation for locking and unlocking operations provided outside the vehicle A switch, a lock operation detection switch that detects when the door lock lock / unlock lever reaches the lock position, a lock operation detection switch that detects that the door lock lock / unlock lever reaches the lock position, and an output A neutral detection switch for detecting that the lever has reached the neutral position, a motor of the actuator and the switches, and the in-vehicle operation switch. When the switch is locked or unlocked and when the vehicle exterior operation switch is unlocked, the motor is operated until the locking operation detection switch operates or the unlocking operation detection switch operates. When the output lever is rotated in the locking direction or the unlocking direction and the locking operation detection switch or the unlocking operation detection switch operates, the motor is reversed until the neutrality detection switch operates. When the output lever is returned to the neutral position and the vehicle exterior operation switch is locked, the motor is rotated in the direction in which the output lever rotates in the locking direction until the locking operation detection switch is actuated. When the locking operation detection switch is activated, the operation of the motor is stopped and the output lever is prevented from moving in the unlocking direction. The motor is controlled so as to rotate in a direction in which the output lever returns to the neutral position and rotates by unlocking the vehicle exterior operation switch in this state. A lock / unlock operation device for a vehicle door lock, comprising: a control device.