JPH07103736B2 - Door lock device for automobile - Google Patents

Description

TECHNICAL FIELD The present invention relates to a vehicle door lock device equipped with a mechanism excellent in safety and operability.

[Conventional technology]

The conventional door lock device as described above disables the lock release operation of the lock knob provided on the vehicle interior side of the door to open and close the door by the inner handle and the outer handle provided inside and outside the vehicle interior by locking and unlocking operations. In addition to the locking / unlocking mechanism that can be moved to the locking position and the unlocking position to enable or enable, even if the locking / unlocking mechanism is in the locking position,
When operating the inner handle, the door can be opened at all times to improve the operability, and the unlocking operation by the outer handle is enabled, but the inner handle is unlocked. There is known a structure provided with a child proof lock mechanism in which operation is invalidated and safety is taken into consideration.

[Problems to be Solved by the Invention]

However, in general, the override structure is attached to the driver's seat door and the child proof lock mechanism is attached to the door lock device of the rear door. Although it is secured, there is a problem in operability.

In order to solve this problem, for example, by providing the rear door with an override mechanism in addition to the child proof lock mechanism, the operability can be improved similarly to the driver's seat door. When a child rides on the vehicle, there is a problem that the inner handle in the vehicle is unnecessarily unlocked.

Further, if the door lock device is configured to include both the child proof lock mechanism and the override mechanism, the structure of the door lock device becomes extremely complicated, which is not practical.

The present invention has been made in view of the above conventional problems, and an object thereof is to provide a vehicle door lock device having a simple structure, safety, and excellent operability. To do.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides an unlocking position that enables a door to be unlocked by an outside lock releasing operation means provided outside the vehicle and an unlocking operation by the outside lock releasing operation means. A locking / unlocking mechanism (11) movable to a locking position for disabling, and an unlocking position which is linked to an in-vehicle lock releasing operation means provided in the vehicle and enables a lock releasing operation by the in-vehicle lock releasing operation means, Safety mechanism (18) that can be moved to the lock position to disable the unlocking operation of the in-vehicle unlocking operation means
A door lock body (1) having and a locking / unlocking mechanism (11)
A lock knob (16) which is connected to the door, is provided on the mounting surface of the door inside the vehicle so as to be retractable, and can be moved to an unlocked position protruding from the mounting surface and a locked position recessed below the mounting surface,
A locking / unlocking actuator (26) that is connected to the locking / unlocking mechanism (11) and that can be moved between the locking and unlocking positions by the locking / unlocking operation switches (30, 33) provided inside and outside the vehicle. And a safety actuator (27) that is connected to the safety mechanism (18) and can move the safety mechanism (18) between the locked position and the unlocked position by operating switches (31) (33) provided inside and outside the vehicle. It is characterized by having.

[Work]

When the safety mechanism (18) is in the lock position and the locking / unlocking mechanism (11) is in the lock position, either the vehicle exterior unlocking operation means (outer handle) or the vehicle interior unlocking operation means (inner handle). The door (D) cannot be opened even if the door is unlocked.

In this state, the lock knob (16) is located on the door (D).
Since it is immersed from the mounting surface (D1) of, the lock knob (1
Since it is practically impossible to pick up 6) to unlock it, when the child is riding on the rear seat and the child runs, the unlocking mechanism (11) is unlocked unnecessarily by the child's mischief. There is no such thing.

Further, when the vehicle is parked or stopped, even if an attempt is made to unlock the lock knob (16) due to an illegal act from outside the vehicle, the lock knob (16) cannot be unlocked because there is no clue to pick it up. Therefore, when you park or stop,
Guaranteed anti-theft.

When the safety operation switch (31) provided inside the vehicle is unlocked, the safety actuator (27) operates in the unlocking direction and the safety mechanism (18) moves to the unlock position.

In this state, since the locking / unlocking mechanism (11) is in the locking position, even if the outer handle is operated, the door (D)
The door (D) can be opened without unlocking the lock knob (16) by unlocking the inner handle (9) without unlocking the lock knob (16). You can

〔Example〕

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

(1) is a meshing mechanism that is mounted on a rear door (D) of an automobile and has a latch that can mesh with a striker fixed to the vehicle body side, and a locking plate that engages with the latch and restrains the door in a closed state. Is a door lock main body provided in the body (2).

(3) is an open lever fixed to the locking plate of the meshing mechanism. By rotating it counterclockwise in FIG. 3, the latch and the striker are disengaged from each other, and the door can be opened. The release operation can be performed.

(4) is an outer lever pivotally mounted on the body (2) by a shaft (5), one end (4a) of which is a door (D).
Is connected to an outer handle (external lock release operation means) (not shown) provided on the outside of the vehicle via a rod or the like, and can be rotated counterclockwise in FIG. 3 by the unlock operation of the outer handle. .

(6) is an inner lever pivotally attached by a shaft (8) to a base plate (7) fixed to the body (2),
One end (6a) of the door (D) is connected to an inner handle (9) (in-vehicle lock releasing operation means) provided on the inner side surface of the vehicle via a rod (10) to release the inner handle (9). This allows it to rotate counterclockwise in FIG.

(11) is a locking / unlocking mechanism, which is pivotally attached to the base plate (7) by a shaft (12) and is arranged in a locking position shown in FIGS. 1, 2, 4 and an unlocking position shown in FIGS. 5, 6, 7. Movable locking / unlocking lever (13) and outer lever (4) at one end (14a)
The other end (4b) is swingably connected, and the other end (14b) is slidably engaged with a pin (13a) fixed to the locking / unlocking lever (13) through an elongated hole (14c). It is composed of the sub lever (14).

(15) is a base plate (7) and a locking / unlocking lever (13)
A spring that is locked between the lock lever and the lock lever to bias the locking / unlocking lever (13) in the locking direction or the unlocking direction.

One end (13a) of the locking / unlocking lever (13) is provided so as to be able to move up and down in the waist portion of the door on the passenger compartment side, and is completely retracted from the mounting surface (D1) of the waist portion. Locking position shown in and the fifth, sixth and seventh protruding from the mounting surface (D1)
It is connected to a lock knob (16) movable to an unlock position shown in the figure via a rod (17), and is moved from the unlock position to the lock position by a locking operation by pushing the lock knob (16).

When the lock knob (16) is in the locking position, the entire lock knob (16) is immersed in the mounting surface (D1), and there is no need for a hand to pick it. You can't.

The sub-lever (14) is linked to the locking and unlocking lever (13),
Engagement part (14d) formed at the upper and lower longitudinal centers
Are unlocked positions shown in FIGS. 5, 6, and 7 that can be engaged with the contact portion (3a) of the open lever (3) with the movement in the longitudinal direction, and the first, second, and similarly unengageable positions. It can be moved to the locked position shown in FIG.

(18) is a safety mechanism, which is a first safety lever (20) pivotally attached to the base plate (7) by a shaft (19).
And one end (21a) is connected to the other end (6) of the inside lever (6).
It is pivotally attached to b) by a shaft (22) and the other end (21b) is a long hole (21b).
and a second safety lever (21) slidably engaged with a shaft (23) fixed to the first safety lever (20) via c).

As shown in FIGS. 4 and 5, the first safety lever (20) and the second safety lever (21) of the safety mechanism (18) move upward due to the release operation of the inner lever (6). The first engaging part (21d) of the second safety lever (21) is connected to the contact part (3) of the open lever (3).
It can be moved to an unlocked position where it engages with a) and a locked position where the first engagement part (21d) swings against the contact part (3a) as shown in FIGS.

(24) is a cancel lever pivotally attached to the base plate (7) by a shaft (25).

The cancel lever (24) has a cancel section (24a)
When the second safety lever (21) is in the unlocked position, it moves upward to engage the second engaging portion (21e) and rotate counterclockwise in FIG. The (24b) abuts the abutment part (14d) of the sub-lever (14), forcibly moving the sub-lever (14) from the locked position to the unlocked position, and the locking and unlocking mechanism (11) to the unlocked position. Can be

(26) is a locking / unlocking actuator connected to the locking / unlocking lever (13), and the locking / unlocking mechanism (1) is moved by the movement of the output member (26a) which reciprocates the rotation of the motor through the reduction mechanism.
1) can be moved to the locked and unlocked positions.

(27) is a safety actuator connected to the first safety lever (20), which locks the safety mechanism (18) to an unlocked position by an output member (27a) that reciprocates the rotation of the motor through a reduction mechanism. Can be moved to any position.

FIG. 9 shows an example of the control circuit.

(30) and (31) are an in-vehicle locking / unlocking operation switch and a safety operation switch which are provided inside the vehicle compartment near the driver's seat.

(33) is a lock contact point (33a) and an unlock contact point (33a) by locking and unlocking a key cylinder (not shown) for locking and unlocking the locking and unlocking mechanism of the door lock device of the driver's door.
The vehicle exterior locking / unlocking operation switch is turned on in b), and the impact detection switch (34) is turned on when a strong impact force is exerted on the vehicle body such as a collision accident.

(35) is a motor of a locking / unlocking actuator (26) mounted on the left and right rear doors, and (36) is a motor of a safety actuator (27) mounted on the left and right rear doors.

(37) (38) (39) (40) shows an OR circuit, and the OR circuit (37) includes a lock contact (30a) of the lock / unlock operation switch (30) in the vehicle and a lock / unlock operation switch (33) outside the vehicle. Lock contact (3
The OR circuit (38) is connected to the unlocking contact (30b) of the lock / unlock operation switch (30) inside the vehicle, the release contact (33b) of the lock / unlock operation switch outside the vehicle (33b), and the impact detection switch (3).
4), the OR circuit (39) is connected to the lock contact (31a) of the safety operation switch (31) and the lock contact (33a) of the vehicle exterior lock / unlock operation switch (33), and the OR circuit (40) is , An unlocking contact (33b) of the vehicle unlocking / unlocking operation switch (33), an unlocking contact (31b) of the safety operation switch (31), and an impact detection switch (34).

(41) is a lock control circuit for driving the motor (35) of the lock / unlock actuator (26) connected to the OR circuit (37),
(42) is an unlocking control circuit for driving the motor (35) of the locking and unlocking actuator (26) connected to the OR circuit (38),
(43) is a lock control circuit for driving the motor (36) of the safety actuator (27) connected to the OR circuit (39), and (44) is an unlocking circuit for driving the motor (36) of the safety actuator (27). It is a lock control circuit.

When the locking contact (30a) is turned on, the lock / unlock operation switch (30) in the vehicle rotates the motor (35) of the locking / unlocking actuator (26) in the locking direction to move the locking / unlocking mechanism (11) to the locking position. When the unlocking contact (30b) is turned on, the motor (35) can be rotated in the unlocking direction to move the locking / unlocking mechanism (11) to the unlocking position.

When the locking contact (31a) is turned on, the safety operation switch (31) causes the motor (36) of the safety actuator (27) to rotate in the locking direction so that the safety mechanism (18)
Can be moved to the lock position, and when the unlocking contact (31b) is turned on, the motor (36) can be rotated in the unlocking direction to move the safety mechanism (18) to the unlock position.

When the locking contact (33a) is turned on, the lock / unlock operation switch (33) outside the vehicle rotates the lock / unlock actuator (26) and the safety actuator (27) motor (35) and motor (36) in the lock direction. When the lock mechanism (11) can be moved to the locked position and the safety mechanism (18) to the locked position, and the unlock contact (33b) is turned on,
The motors (35) (36) can be rotated in the unlocking direction to move the locking / unlocking mechanism (11) to the unlocking position and the safety mechanism (18) to the unlocking position.

When the shock sensing switch (34) senses a shock and turns on, it activates the locking / unlocking actuator (26) and the safety actuator (27) to move the locking / unlocking mechanism (11) to the unlocked position and to unlock the safety mechanism. Can be moved to the locked position.

Next, the operation of the present invention will be described.

As shown in FIG. 2, when the safety mechanism (18) is in the lock position and the locking / unlocking mechanism (11) is in the lock position,
The door (D) cannot be opened by unlocking either the outer handle outside the vehicle or the inner handle (9) inside the vehicle.

That is, even if the outer lever is unlocked and the sub-lever (14) is moved in the releasing direction (upward) through the outer lever (4), the engaging portion (14d) of the sub-lever (14) opens the open lever (3). ) Contact part (3a)
However, the door (D) cannot be opened because it swings empty. Further, even if the second safety lever (21) is moved in the releasing direction (upward) via the inner lever (6) by the unlocking operation of the inner handle (9), the first safety lever (21) moves to the first position. Since the engaging part (21d) swings against the open lever (3), the door (D)
Can't open.

In this state, the lock knob (16) is located on the door (D).
Since it is immersed from the mounting surface (D1) of, the lock knob (1
Since it is practically impossible to pick up 6) to unlock it, when the child is riding on the rear seat and the child runs, the unlocking mechanism (11) is unlocked unnecessarily by the child's mischief. It is safe because there is nothing to be done.

When a strong impact is applied to the vehicle body due to an accident, the impact detection switch (34) senses and turns on the lock / unlock actuator (26) and safety actuator (27) in the unlocking direction. Then, the locking / unlocking mechanism (1
Since 1) can be moved to the unlocked position and the safety mechanism (18) to the unlocked position, the outer handle from outside the vehicle or the inner handle (9) from inside the vehicle can be unlocked and the door immediately opened. (D) can be opened.

When the vehicle is parked or stopped, due to fraudulent acts from outside the vehicle,
Even if an attempt is made to unlock the lock knob (16), the lock knob (16) cannot be unlocked because there is no clue to pick it up. Therefore, the anti-theft property when parked / stopped is guaranteed.

When the safety operation switch (31) provided inside the vehicle is unlocked from the state shown in FIG. 2, the safety actuator (27) operates in the unlocking direction, and as shown in FIG. 4, the safety mechanism (18) Move to the unlocked position.

In this state, since the locking / unlocking mechanism (11) is in the locking position, the sub-lever (14) swings against the open lever (3) even if the outer handle is operated, so that the door (D) is opened. Although it cannot be opened, the second safety lever (21) is in a position where it can be engaged with the open lever (3), so the inner lever (6) can be released by the lock release operation of the inner handle (9). The first engaging portion (21d) of the second safety lever (21) engages with the contact portion (3a) of the open lever (3) through the lock release operation to unlock the lock knob (16). Without
The door (D) can be opened while the locking / unlocking mechanism (11) remains locked.

At that time, as shown in FIG. 7, the second engaging portion (21e) is engaged with the canceling portion (24a) of the cancel lever (24) by the releasing operation of the second safety lever (21), The cancel lever (24) is rotated counterclockwise, and the push lever (24b) of the cancel lever (24) pushes the contact portion (14d) of the sub lever (14), so that the sub lever (14) is unlocked. The locking / unlocking mechanism (11) is moved to the unlocked position.

When the door (D) is closed and the door (D) is closed while the locking / unlocking mechanism (11) is in the locked position as shown in FIGS. The open lever (3) moves in the releasing direction in conjunction with the meshing operation, but at that time, since the open lever (3) does not interfere with other members at all, the locking / unlocking mechanism (11) is locked at the locking position. Since the door (D) can be closed while it is held at, the door (D) can be closed without using a key plate, etc. It is extremely convenient for passengers to close the door.

From the state shown in Fig. 2, lock / unlock operation switch (3
When 0) is unlocked, the locking / unlocking actuator (26) operates in the unlocking direction, and the locking / unlocking mechanism (11) moves to the unlocking position as shown in FIG.

In this state, although the safety mechanism (11) is in the lock position, the sub-lever (14) of the locking / unlocking mechanism (11)
The engaging part (14d) of the open lever (3) is the contact part (3d).
Since it can be engaged with a), the unlocking operation of the outer handle causes the open lever (3) to be released via the outer lever (4) and the sub-lever (14), and the door ( D) can be opened. Further, in this state, since the safety mechanism (11) is in the lock position, the door (D) cannot be opened even if the inner handle (9) is operated.

FIG. 5 shows a state in which the locking / unlocking mechanism (11) is in the unlocked position and the safety mechanism (18) is in the unlocked position. In this state, by unlocking the outer handle and the inner handle (9), the open lever (3) is released via the sub-lever (14) or the second safety lever (21), and the door ( D) can be opened.

When a key cylinder provided outside the vehicle is operated to lock / unlock the vehicle outside lock / unlock operation switch (33), both the lock / unlock actuator (26) and the safety actuator (27) operate in the lock direction to lock / unlock the mechanism (11). ) Is in the locked position,
The safety mechanism (18) also moves to the lock position.

Therefore, as described above, it is possible to prevent the lock knob (16) from entering the mounting surface (D1) of the door (D) and opening the door due to an illegal act when the vehicle is parked.

〔The invention's effect〕

As described above, the present invention has the following effects.

(A) When the safety mechanism (18) is in the unlocked position, even if the locking / unlocking mechanism (11) is in the locked position, the vehicle interior unlocking operation means (inner handle) always
Since the door can be opened, operability can be improved.

(B) When the safety mechanism (18) is in the lock position and the locking / unlocking mechanism (11) is in the lock position, the lock knob (16) is entirely retracted from the mounting surface. Since the locking / unlocking mechanism (11) cannot be unlocked unnecessarily, it is safe and has a great anti-theft effect.

(C) Since the safety actuator (27) and the locking / unlocking actuator (26) can be operated by the lock / unlock operation switch (33) outside the vehicle compartment, the safety mechanism (18) and the locking / unlocking mechanism (11) can be operated. It is convenient and can further improve the safety and the anti-theft property.

[Brief description of drawings]

The drawings show one embodiment of the present invention, FIG. 1 is a front view for explaining a mounting state of the device of the present invention, FIG. 2 is a sectional view taken along line III-III in FIG. FIG. 4 is a plan view of a door lock main body, and FIGS. 4 to 7 are operation explanatory views of main parts. FIG. 4 is an operation explanatory view of a locking / unlocking mechanism in a locking position and a safety mechanism in an unlocking position. 5, FIG. 5 is an operation explanatory diagram in which the locking / unlocking mechanism is in the unlocked position and the safety mechanism is in the unlocked position, and FIG. 6 is an operation explanatory diagram in which the locking / unlocking mechanism is in the unlocked position and the safety mechanism is in the locked position. FIG. 8 is an operation explanatory diagram when the inner lever is operated. FIG. 8 is an exploded perspective view of a locking / unlocking mechanism and a safety mechanism. FIG. 9 is a control circuit diagram. FIG. 10 is an automobile to which the present invention is applied. FIG. 3 is a schematic perspective view showing the inside of the vehicle. (1) Door lock body, (3) Open lever (4) Outer lever (outside vehicle lock release operation means) (6) Inner lever (9) Inner handle (inside vehicle lock release operation means) (11) Locking / unlocking mechanism, (13) ) Locking / unlocking lever (14) Sub lever, (16) Lock knob (18) Safety mechanism (20) First safety lever (21) Second safety lever (21d) First engaging part, (21e) Second engaging part ( 24) Cancel lever (26) Locking / unlocking actuator (27) Safety actuator (30) Inside lock / unlock operation switch (31) Safety operation switch (33) Outside lock / unlock operation switch (34) Impact detection switch

Claims (1)

[Claims] Claims: 1. An unlocking position that enables a door to be unlocked by an outside lock releasing operation means provided outside the vehicle and a locking position that disables an unlocking operation from the outside lock releasing operation means. A lockable and unlockable mechanism that is movable and an in-vehicle unlocking operation means provided in the vehicle, and an unlock position for enabling the unlocking operation by the in-vehicle unlocking operation means and an unlocking operation of the in-vehicle unlocking operation means. A door lock body that has a lock position that can be disabled and a safety mechanism that can be moved, and a lock position that is connected to the locking and unlocking mechanism and that can be retracted from the door mounting surface inside the vehicle and that protrudes from the mounting surface. And a lock knob that can be moved to a locked position that is recessed below the mounting surface, and a locking / unlocking switch that is connected to the locking / unlocking mechanism and is installed inside and outside the vehicle The locking / unlocking actuator that can move the structure between the locked position and the unlocked position, and the safety actuator that is connected to the safety mechanism and that can move the safety mechanism between the locked position and the unlocked position by the operation switch provided inside and outside the vehicle. An automobile door lock device characterized by being provided.