JPH0726502B2 - Door lock locking / unlocking operation device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a vehicle door lock locking / unlocking operation device capable of locking / unlocking a door lock and a child-proof operation by an electric actuator. .

[Conventional technology]

A typical example of the conventional device of this type is disclosed in Japanese Patent Laid-Open No. 123685/1985.

This device has a first motor that can rotate normally and reversely, a first drive mechanism that has a first drive member that can reverse between a locked position and an unlocked position, and a second motor that can rotate normally and reversely. Then, a second drive mechanism having a second drive member that can be reversed between the locking position and the unlocking position is provided side by side in the same case, and the first drive member is locked and unlocked by the childproof mechanism of the door lock. Is connected to a childproof lever for switching the door lock via a first connecting member, and the second drive member is connected to a locking / unlocking lever for switching the locking / unlocking of the door lock via the second connecting member so as to be located near the driver's seat. By operating the arranged first operation switch, the first drive mechanism is driven,
The child proof lever of the door lock can be locked or unlocked, and the second operation mechanism is driven by operating the second operation switch to lock or unlock the door lock locking and unlocking lever. You can do it.

[Problems to be Solved by the Invention]

In the conventional device as described above, a first drive mechanism having a first motor for operating a locking / unlocking lever of a door lock,
The two motors and the drive mechanism of the second drive mechanism having the second motor for operating the child proof lever of the door lock require two motors and a drive mechanism, which makes the number of constituent parts complicated and the child proof also in the door lock. Since a mechanism is required, there is a problem that the configuration becomes complicated and the cost becomes high.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to lock and unlock a door lock and to lock and proof a child proof with a simple configuration using a single motor. An object of the present invention is to provide a locking / unlocking operation device for an automobile door lock that can be operated.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention moves an output lever from a neutral position to a locking position and an unlocking position in a door lock via a speed reduction mechanism by a motor capable of rotating in the forward and reverse directions. An actuator that can be moved in the locking direction and the unlocking direction, and can be returned and rotated to the neutral position, a locking and unlocking operation switch provided in the vehicle for locking and unlocking operations, and a child provided in the vehicle. Child proof operation switch for proof operation, outside handle operation detection switch that detects the operation of the outside handle installed outside the vehicle, and lock operation detection that detects when the locking and unlocking lever of the door lock has reached the locking position A switch, an unlocking action detection switch that detects when the door locking / unlocking lever has reached the unlocking position, and an output lever There a neutral detection switch for detecting that reaches the neutral position, the motor and the said actuators are connected to each switch, and the lock-unlock operation switch when locking operation or unlocking operation, the motor,
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 is actuated to reverse the motor until the neutrality detection switch is actuated. The output lever is returned to the neutral position and the child proof operation switch is locked, the motor is rotated in the direction in which the output lever rotates in the locking direction, and the locking operation detection switch operates. By doing so, the operation of the motor is stopped, the output lever is stopped at a position that prevents movement of the locking / unlocking lever in the unlocking direction, and in this state, the operation of the outside handle operation detection switch And a control device for rotating the motor in an unlocking direction so as to unlock the locking / unlocking lever. That.

[Action]

The motor of the actuator rotates in a predetermined direction by the locking or unlocking operation of the locking / unlocking switch provided in the vehicle compartment, and accordingly, the output lever, via the speed reduction mechanism, moves from the neutral position to the locking direction or unlocks. Rotate in the lock direction,
After moving the locking / unlocking lever of the door lock to the locking position that disables the door opening operation or the unlocking position that enables the door opening operation, the motor is activated by the locking operation detection switch or the unlocking operation detection switch. Inversion controlled.

As a result, the output lever is inverted and rotated from the locked position or the unlocked position toward the neutral position, and is stopped at the neutral position by the operation of the neutral detection switch.

Thus, the door lock can be locked and unlocked by the motor drive of the actuator, and the manual operation can be smoothly performed.

The motor is rotated by the locking operation of the child proof operation switch provided inside the vehicle, and the output lever is rotated in the locking direction from the neutral position via the speed reduction mechanism, and the locking / unlocking lever of the door lock is locked. Move to position.

In this case, the output lever does not reverse to the neutral position but stops at the locking position.

When the child proof is locked, the output lever prevents movement of the locking / unlocking lever in the unlocking direction.Therefore, the locking / unlocking knob provided in the passenger compartment must be unlocked by a child's mischief. Not safe.

Also, from the outside of the vehicle, by operating the outside handle to operate the outside handle operation detection switch, the motor is reversely controlled, and the output lever operates from the locked position to the unlocked direction to unlock and unlock the door. Since the lock lever can be unlocked, when the outside handle is operated again, the door can be disengaged and the door can be opened.

〔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) is connected to a key cylinder (not shown) arranged on the vehicle exterior side of the door via a holder (7a) provided at the tip thereof.

(8) is an outside lever pivotally attached to the meshing mechanism portion (2), one end of which is connected to an outside handle (9) arranged outside the door via a rod (not shown). ing.

Reference numeral (12) is an inside lever pivotally attached to the operation mechanism portion (3), and one end thereof is connected to an inside handle (not shown) arranged inside the door.

By manually operating the locking / unlocking knob (5) from the inside of the vehicle, or by manually operating the key cylinder from the outside of the vehicle using the key plate, the locking / unlocking lever (4) can move to the outside handle (9) or the inside. The locking position shown in FIG. 4 that disables the latch release operation of the outside lever (8) or the inside lever (12) by the door opening operation of the handle, and the unlocking position shown in FIG. 1 and FIG. You can move to any position.

(10) and (11) are a normally-closed unlocking operation detection switch and a locking operation detection switch, which are fixed to the bracket (3a) extending from the operation mechanism section (3), respectively, and 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 action detection switch (10) is turned off. In the locked state shown in FIG. 4, the locking action 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 (3a) of the door lock body (1). And in the case (13d)
Motor (13a) capable of forward / reverse rotation (see FIG. 5), known deceleration mechanism (13b) composed of a planetary gear or the like for decelerating the rotation of the motor (13a), and output of the deceleration mechanism (13b) An output lever (14) fixed to the shaft (13c) is provided.

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 that the locking / unlocking lever (4) can be moved to a locking position or an unlocking position by abutting the side edge.

The output lever (14) is rotated from the neutral position shown in FIG. 1 by the locking / unlocking operation switch (16) and the child proof operation switch (17) provided in the passenger compartment to rotate the motor (13a), as shown in FIG. It can rotate in a locking direction which is a clockwise direction and an unlocking direction which is a counterclockwise direction.

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

(18) is an outside handle operation detection switch which is turned on when the outside handle (9) is not operated and is turned off.

When the locking / unlocking switch (16) is locked, the output lever (14) rotates clockwise from the neutral position in FIG. 1, and as shown in FIG. 4, the operating portion of the output lever (14) ( 14a) enters into the operation locus of the driven part (4b) of the locking / unlocking lever (4), contacts the left side edge of the driven part (4b), and moves the locking / unlocking lever (4) to the locking position, When this position is detected by the locking operation detection switch (11), the motor (13a) is reversely controlled to return and rotate to the neutral position. Then, the tip of the actuating part (14a) turns off the neutrality detection switch (15), and the output lever (1
4) stops at the neutral position.

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 child proof operation switch (17) is locked, the motor drives the output lever (14) to rotate clockwise from the neutral position, and as shown in FIG. 4, the operating portion of the output lever (14) ( 14a) enters into the operation locus of the driven part (4b) of the locking / unlocking lever (4), contacts the left side edge of the driven part (4b), and moves the locking / unlocking lever (4) to the locking position. In this case, without returning to the neutral position,
Stop at this position.

In order to move the locking / unlocking lever (4) to the unlocking position by unlocking the locking / unlocking knob (5) from the inside of the vehicle, the driven part (4b) of the unlocking lever (4) contacts the output lever (14). The speed reduction mechanism (13b) in (13) must be reversed. But this is due to the decelerating effect,
The unlocking operation of the locking and unlocking knob (5) is impossible.

The locking and unlocking lever (4) is restrained in the unlocking direction from the inside of the vehicle to the unlocking operation of the childproof operation switch (17) provided near the driver's seat, and from the outside of the vehicle to the outside of the door. It can be released by operating the provided outside handle (9).

That is, the motor (13a) is driven by the above-mentioned operation, the output lever (14) rotates toward the neutral position, passes the neutral position, and moves the locking / unlocking lever (4) to the unlocking position. it can.

FIG. 5 shows an embodiment of the control circuit.

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

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 relay, the OR signal outputs the ON signal from the output terminal, and the switching transistor (21) is turned on to make the relay (19).
To rotate the motor (13a) in the forward direction to output the output lever (1
4) can be rotated in the locking direction (clockwise).

The input terminals of the OR gate circuit (23) are connected to the output terminals of the AND gate circuits (26), (27) and (33) respectively, and when an ON signal is input to any of the input terminals, it is output by the logical sum of them. An ON signal is output from the terminal, the switching transistor (21a) is turned on, and the relay (2
The output lever (14) can be rotated in the unlocking direction (counterclockwise direction) by exciting 0) and 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 shall be connected to the lock side contact (16a) of the lock / unlock operation switch (16), and the other input terminal shall be connected to the lock side contact (17a) of the childproof operation switch (17). When the lock operation detection switch (11) is turned on (unlocked state), either the lock / unlock operation switch (16) or the child proof operation switch (17) is locked on the lock side contact (16a) (17a) side. When turned on, an ON signal can be input to one input terminal of the OR gate circuit (22).

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 the input terminal of the OR gate circuit (29) is locked and unlocked. Unlocking side contact (16
b) and the unlocking side contact (17b) of the child proof operation switch (17), respectively, so that the unlocking operation detection switch (10) is turned on (locked state) When either the switch (16) or the child proof operation switch (17) is turned on to the unlock side contact (16b) (17b) side, the OR gate circuit (2
3) An ON signal can be input to one of the input terminals.

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

The input terminal of the AND gate circuit (33) is connected to the output terminal (Q) of the flip-flop circuit (30), the AND gate circuit (34), and the unlocking operation detection switch (10), respectively.

Set input terminal (S) of flip-flop circuit (30)
Is connected to the lock side contact (17a) of the child proof operation switch (17), the reset input terminal (R) is connected to the unlock side contact (17b), and an ON signal is input to the set input terminal (S). Then, the ON signal is output from the output terminal (Q), and when the ON signal is input to the reset input terminal (R), the ON signal is output from ().

One input terminal of the AND gate circuit (34) is operated via the monostable multivibrator (35) to the outside handle operation detection switch (18), and the other input terminal is operated via the inverter (36). Detector switch (18)
Respectively connected to.

That is, when the outside handle (9) is operated to turn on the handle operation detection switch (18) once, the handle (9) is restored, and the handle detection switch (18) is turned off. It is possible to obtain a logical product of the circuit (34) and output an ON signal for a certain period of time.

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 output lever (14) is rotated in the locking direction by the locking operation of the locking / unlocking operation switch (16), the output lever (14) causes the locking / unlocking lever (4) to move as shown in FIG. When moved to the locked position, the lock operation detection switch (11) is turned off and the neutral detection switch (15)
And the unlocking operation detection switch (10) are both turned on. Therefore, from the other output terminal of the interlock circuit (25),
ON signal is output.

At this time, since the ON signal is output from the output terminal () of the flip-flop circuit (30), the logical product of the AND circuit (27) is obtained and the motor (13a) is rotated in reverse to output the output lever (14 ) Can be rotated to return to the neutral position.

When the output lever reaches the neutral position, the neutral detection switch (1
When 5) is turned off, the rotation of the motor (13a) stops and the output lever (14) stops at that position.

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 an ON 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 child proof operation switch (17) is locked, the lock side contact (17a) is turned on and the output lever (1
When 4) 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 the output terminal () of the flip-flop circuit (30). The output lever (14) does not return to the neutral position and does not rotate to the fourth position.
It will remain stopped at the position shown.

As a result, the movement of the locking / unlocking lever (4) in the unlocking direction by the manual unlocking operation of the locking / unlocking knob (5) from the inside of the vehicle is restrained, so that the door is opened by being unlocked by mischief of a child or the like. Concerns can be resolved with certainty.

From the outside of the vehicle, operate the outside handle (9) to detect the outside handle operation detection switch (18).
And gate circuit by turning on and off (34)
The ON signal is further output to obtain the logical product of the AND gate circuit (33), the motor (13a) rotates in reverse, and the output lever (1
After moving 4) beyond the neutral position to the unlocking side to bring the locking / unlocking lever (4) into the unlocked state, the lever is returned to the neutral position, rotated, and stopped.

The crime, again, by operating the outside handle (9), the engagement of the door lock can be released and the door can be opened.

The child proof state can be set by releasing the child proof operation switch (17) from the inside of the vehicle.
Will be reset.

〔The invention's effect〕

According to the present invention, since the door lock / unlock operation and the child proof operation that disables unlocking from the inside of the vehicle and enables unlocking from outside the vehicle can be performed by a single motor, The number of parts can be significantly reduced compared to the conventional one.

Further, even in the door lock, since the child proof mechanism is not required, the structure is simplified and the cost can be reduced.

[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) Follower, (5) Locking / unlocking knob (9) Outside handle, (10) Unlocking operation detection switch (11) Locking operation detection switch, (13 ) Actuator (13a) Motor, (14) Output lever (14a) Actuator, (15) Neutral detection switch (16) Locking and unlocking operation switch (17) Child proof operation switch (18) Outside handle operation detection switch

Claims (1)

[Claims] 1. A locking direction and an unlocking direction for moving an output lever from a neutral position to a locking position and an unlocking position from a neutral position by a motor capable of rotating the output lever forward and backward. An actuator that can be moved to and returned to the neutral position, a locking / unlocking operation switch for locking / unlocking operation provided in the vehicle, and a child proof for child proof operation provided in the vehicle. The operation switch, the outside handle operation detection switch that detects the operation of the outside handle installed outside the vehicle, the locking operation detection switch that detects when the locking and unlocking lever of the door lock has reached the locking position, and the door lock The unlocking operation detection switch that detects when the locking / unlocking lever has reached the unlocked position and the output lever has reached the neutral position A neutral detection switch for detecting that the motor is connected to the actuator motor and each switch, and when the locking / unlocking switch is operated to be locked or unlocked, the output lever of the motor is locked in the locking direction or unlocked. The motor is reversed to rotate the output lever to the neutral position until the neutral detection switch operates by rotating the locking operation detection switch or the unlocking operation detection switch by rotating the output lever to the neutral position. Restore it,
When the child proof operation switch is locked, the motor is rotated in the direction in which the output lever rotates in the locking direction, and the locking operation detection switch operates to stop the operation of the motor. The output lever is stopped at a position that prevents the locking / unlocking lever from moving in the unlocking direction, and in this state, the locking / unlocking lever is unlocked by operating the outside handle operation detection switch. A locking / unlocking operation device for a vehicle door lock, comprising: a control device configured to rotate the motor in an unlocking direction.